diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml index a20fd630..dfd85d72 100644 --- a/.github/.OwlBot.lock.yaml +++ b/.github/.OwlBot.lock.yaml @@ -13,5 +13,4 @@ # limitations under the License. docker: image: gcr.io/cloud-devrel-public-resources/owlbot-java:latest - digest: sha256:7a9a7eb50ca2af5bfffab3abd2f38d408735c990a74bacf9b7fde2af0a086a0b -# created: 2022-08-01T15:27:14.757266067Z + digest: sha256:086f6916c24f11a1a196ea47f9da39abb4ca8730fcd6e69158fec4834287bcde diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS index 30fdb7b9..db2d8ad1 100644 --- a/.github/CODEOWNERS +++ b/.github/CODEOWNERS @@ -8,3 +8,6 @@ # The java-samples-reviewers team is the default owner for samples changes samples/**/*.java @googleapis/java-samples-reviewers + +# Generated snippets should not be owned by samples reviewers +samples/snippets/generated/ @googleapis/yoshi-java diff --git a/.kokoro/release/publish_javadoc.sh b/.kokoro/release/publish_javadoc.sh index 2c6be610..5b3b9c60 100755 --- a/.kokoro/release/publish_javadoc.sh +++ b/.kokoro/release/publish_javadoc.sh @@ -28,7 +28,7 @@ fi pushd $(dirname "$0")/../../ # install docuploader package -python3 -m pip install gcp-docuploader +python3 -m pip install --require-hashes -r .kokoro/requirements.txt # compile all packages mvn clean install -B -q -DskipTests=true diff --git a/.kokoro/release/publish_javadoc11.sh b/.kokoro/release/publish_javadoc11.sh index 68efea72..a1838350 100755 --- a/.kokoro/release/publish_javadoc11.sh +++ b/.kokoro/release/publish_javadoc11.sh @@ -28,7 +28,7 @@ fi pushd $(dirname "$0")/../../ # install docuploader package -python3 -m pip install gcp-docuploader +python3 -m pip install --require-hashes -r .kokoro/requirements.txt # compile all packages mvn clean install -B -q -DskipTests=true diff --git a/.kokoro/release/stage.sh b/.kokoro/release/stage.sh index 1dba8de1..61e714d6 100755 --- a/.kokoro/release/stage.sh +++ b/.kokoro/release/stage.sh @@ -16,7 +16,8 @@ set -eo pipefail # Start the releasetool reporter -python3 -m pip install gcp-releasetool +requirementsFile=$(realpath $(dirname "${BASH_SOURCE[0]}")/../requirements.txt) +python3 -m pip install --require-hashes -r $requirementsFile python3 -m releasetool publish-reporter-script > /tmp/publisher-script; source /tmp/publisher-script source $(dirname "$0")/common.sh diff --git a/.kokoro/requirements.in b/.kokoro/requirements.in new file mode 100644 index 00000000..cfdc2e7e --- /dev/null +++ b/.kokoro/requirements.in @@ -0,0 +1,31 @@ +gcp-docuploader==0.6.3 +google-crc32c==1.3.0 +googleapis-common-protos==1.56.3 +gcp-releasetool==1.8.7 +cachetools==4.2.4 +cffi==1.15.1 +jeepney==0.7.1 +jinja2==3.0.3 +markupsafe==2.0.1 +keyring==23.4.1 +packaging==21.3 +protobuf==3.19.5 +pyjwt==2.4.0 +pyparsing==3.0.9 +pycparser==2.21 +pyperclip==1.8.2 +python-dateutil==2.8.2 +requests==2.27.1 +importlib-metadata==4.8.3 +zipp==3.6.0 +google_api_core==2.8.2 +google-cloud-storage==2.0.0 +google-cloud-core==2.3.1 +typing-extensions==4.1.1 +urllib3==1.26.12 +zipp==3.6.0 +rsa==4.9 +six==1.16.0 +attrs==22.1.0 +google-auth==2.11.0 +idna==3.4 \ No newline at end of file diff --git a/.kokoro/requirements.txt b/.kokoro/requirements.txt new file mode 100644 index 00000000..170f1c63 --- /dev/null +++ b/.kokoro/requirements.txt @@ -0,0 +1,452 @@ +# +# This file is autogenerated by pip-compile with python 3.10 +# To update, run: +# +# pip-compile --allow-unsafe --generate-hashes requirements.in +# +attrs==22.1.0 \ + --hash=sha256:29adc2665447e5191d0e7c568fde78b21f9672d344281d0c6e1ab085429b22b6 \ + --hash=sha256:86efa402f67bf2df34f51a335487cf46b1ec130d02b8d39fd248abfd30da551c + # via + # -r requirements.in + # gcp-releasetool +cachetools==4.2.4 \ + --hash=sha256:89ea6f1b638d5a73a4f9226be57ac5e4f399d22770b92355f92dcb0f7f001693 \ + --hash=sha256:92971d3cb7d2a97efff7c7bb1657f21a8f5fb309a37530537c71b1774189f2d1 + # via + # -r requirements.in + # google-auth +certifi==2022.9.14 \ + --hash=sha256:36973885b9542e6bd01dea287b2b4b3b21236307c56324fcc3f1160f2d655ed5 \ + --hash=sha256:e232343de1ab72c2aa521b625c80f699e356830fd0e2c620b465b304b17b0516 + # via requests +cffi==1.15.1 \ + --hash=sha256:00a9ed42e88df81ffae7a8ab6d9356b371399b91dbdf0c3cb1e84c03a13aceb5 \ + --hash=sha256:03425bdae262c76aad70202debd780501fabeaca237cdfddc008987c0e0f59ef \ + --hash=sha256:04ed324bda3cda42b9b695d51bb7d54b680b9719cfab04227cdd1e04e5de3104 \ + --hash=sha256:0e2642fe3142e4cc4af0799748233ad6da94c62a8bec3a6648bf8ee68b1c7426 \ + --hash=sha256:173379135477dc8cac4bc58f45db08ab45d228b3363adb7af79436135d028405 \ + --hash=sha256:198caafb44239b60e252492445da556afafc7d1e3ab7a1fb3f0584ef6d742375 \ + --hash=sha256:1e74c6b51a9ed6589199c787bf5f9875612ca4a8a0785fb2d4a84429badaf22a \ + --hash=sha256:2012c72d854c2d03e45d06ae57f40d78e5770d252f195b93f581acf3ba44496e \ + --hash=sha256:21157295583fe8943475029ed5abdcf71eb3911894724e360acff1d61c1d54bc \ + --hash=sha256:2470043b93ff09bf8fb1d46d1cb756ce6132c54826661a32d4e4d132e1977adf \ + --hash=sha256:285d29981935eb726a4399badae8f0ffdff4f5050eaa6d0cfc3f64b857b77185 \ + --hash=sha256:30d78fbc8ebf9c92c9b7823ee18eb92f2e6ef79b45ac84db507f52fbe3ec4497 \ + --hash=sha256:320dab6e7cb2eacdf0e658569d2575c4dad258c0fcc794f46215e1e39f90f2c3 \ + --hash=sha256:33ab79603146aace82c2427da5ca6e58f2b3f2fb5da893ceac0c42218a40be35 \ + --hash=sha256:3548db281cd7d2561c9ad9984681c95f7b0e38881201e157833a2342c30d5e8c \ + --hash=sha256:3799aecf2e17cf585d977b780ce79ff0dc9b78d799fc694221ce814c2c19db83 \ + --hash=sha256:39d39875251ca8f612b6f33e6b1195af86d1b3e60086068be9cc053aa4376e21 \ + --hash=sha256:3b926aa83d1edb5aa5b427b4053dc420ec295a08e40911296b9eb1b6170f6cca \ + --hash=sha256:3bcde07039e586f91b45c88f8583ea7cf7a0770df3a1649627bf598332cb6984 \ + --hash=sha256:3d08afd128ddaa624a48cf2b859afef385b720bb4b43df214f85616922e6a5ac \ + --hash=sha256:3eb6971dcff08619f8d91607cfc726518b6fa2a9eba42856be181c6d0d9515fd \ + --hash=sha256:40f4774f5a9d4f5e344f31a32b5096977b5d48560c5592e2f3d2c4374bd543ee \ + --hash=sha256:4289fc34b2f5316fbb762d75362931e351941fa95fa18789191b33fc4cf9504a \ + --hash=sha256:470c103ae716238bbe698d67ad020e1db9d9dba34fa5a899b5e21577e6d52ed2 \ + --hash=sha256:4f2c9f67e9821cad2e5f480bc8d83b8742896f1242dba247911072d4fa94c192 \ + --hash=sha256:50a74364d85fd319352182ef59c5c790484a336f6db772c1a9231f1c3ed0cbd7 \ + --hash=sha256:54a2db7b78338edd780e7ef7f9f6c442500fb0d41a5a4ea24fff1c929d5af585 \ + --hash=sha256:5635bd9cb9731e6d4a1132a498dd34f764034a8ce60cef4f5319c0541159392f \ + --hash=sha256:59c0b02d0a6c384d453fece7566d1c7e6b7bae4fc5874ef2ef46d56776d61c9e \ + --hash=sha256:5d598b938678ebf3c67377cdd45e09d431369c3b1a5b331058c338e201f12b27 \ + --hash=sha256:5df2768244d19ab7f60546d0c7c63ce1581f7af8b5de3eb3004b9b6fc8a9f84b \ + --hash=sha256:5ef34d190326c3b1f822a5b7a45f6c4535e2f47ed06fec77d3d799c450b2651e \ + --hash=sha256:6975a3fac6bc83c4a65c9f9fcab9e47019a11d3d2cf7f3c0d03431bf145a941e \ + --hash=sha256:6c9a799e985904922a4d207a94eae35c78ebae90e128f0c4e521ce339396be9d \ + --hash=sha256:70df4e3b545a17496c9b3f41f5115e69a4f2e77e94e1d2a8e1070bc0c38c8a3c \ + --hash=sha256:7473e861101c9e72452f9bf8acb984947aa1661a7704553a9f6e4baa5ba64415 \ + --hash=sha256:8102eaf27e1e448db915d08afa8b41d6c7ca7a04b7d73af6514df10a3e74bd82 \ + --hash=sha256:87c450779d0914f2861b8526e035c5e6da0a3199d8f1add1a665e1cbc6fc6d02 \ + --hash=sha256:8b7ee99e510d7b66cdb6c593f21c043c248537a32e0bedf02e01e9553a172314 \ + --hash=sha256:91fc98adde3d7881af9b59ed0294046f3806221863722ba7d8d120c575314325 \ + --hash=sha256:94411f22c3985acaec6f83c6df553f2dbe17b698cc7f8ae751ff2237d96b9e3c \ + --hash=sha256:98d85c6a2bef81588d9227dde12db8a7f47f639f4a17c9ae08e773aa9c697bf3 \ + --hash=sha256:9ad5db27f9cabae298d151c85cf2bad1d359a1b9c686a275df03385758e2f914 \ + --hash=sha256:a0b71b1b8fbf2b96e41c4d990244165e2c9be83d54962a9a1d118fd8657d2045 \ + --hash=sha256:a0f100c8912c114ff53e1202d0078b425bee3649ae34d7b070e9697f93c5d52d \ + --hash=sha256:a591fe9e525846e4d154205572a029f653ada1a78b93697f3b5a8f1f2bc055b9 \ + --hash=sha256:a5c84c68147988265e60416b57fc83425a78058853509c1b0629c180094904a5 \ + --hash=sha256:a66d3508133af6e8548451b25058d5812812ec3798c886bf38ed24a98216fab2 \ + --hash=sha256:a8c4917bd7ad33e8eb21e9a5bbba979b49d9a97acb3a803092cbc1133e20343c \ + --hash=sha256:b3bbeb01c2b273cca1e1e0c5df57f12dce9a4dd331b4fa1635b8bec26350bde3 \ + --hash=sha256:cba9d6b9a7d64d4bd46167096fc9d2f835e25d7e4c121fb2ddfc6528fb0413b2 \ + --hash=sha256:cc4d65aeeaa04136a12677d3dd0b1c0c94dc43abac5860ab33cceb42b801c1e8 \ + --hash=sha256:ce4bcc037df4fc5e3d184794f27bdaab018943698f4ca31630bc7f84a7b69c6d \ + --hash=sha256:cec7d9412a9102bdc577382c3929b337320c4c4c4849f2c5cdd14d7368c5562d \ + --hash=sha256:d400bfb9a37b1351253cb402671cea7e89bdecc294e8016a707f6d1d8ac934f9 \ + --hash=sha256:d61f4695e6c866a23a21acab0509af1cdfd2c013cf256bbf5b6b5e2695827162 \ + --hash=sha256:db0fbb9c62743ce59a9ff687eb5f4afbe77e5e8403d6697f7446e5f609976f76 \ + --hash=sha256:dd86c085fae2efd48ac91dd7ccffcfc0571387fe1193d33b6394db7ef31fe2a4 \ + --hash=sha256:e00b098126fd45523dd056d2efba6c5a63b71ffe9f2bbe1a4fe1716e1d0c331e \ + --hash=sha256:e229a521186c75c8ad9490854fd8bbdd9a0c9aa3a524326b55be83b54d4e0ad9 \ + --hash=sha256:e263d77ee3dd201c3a142934a086a4450861778baaeeb45db4591ef65550b0a6 \ + --hash=sha256:ed9cb427ba5504c1dc15ede7d516b84757c3e3d7868ccc85121d9310d27eed0b \ + --hash=sha256:fa6693661a4c91757f4412306191b6dc88c1703f780c8234035eac011922bc01 \ + --hash=sha256:fcd131dd944808b5bdb38e6f5b53013c5aa4f334c5cad0c72742f6eba4b73db0 + # via + # -r requirements.in + # cryptography +charset-normalizer==2.0.12 \ + --hash=sha256:2857e29ff0d34db842cd7ca3230549d1a697f96ee6d3fb071cfa6c7393832597 \ + --hash=sha256:6881edbebdb17b39b4eaaa821b438bf6eddffb4468cf344f09f89def34a8b1df + # via requests +click==8.0.4 \ + --hash=sha256:6a7a62563bbfabfda3a38f3023a1db4a35978c0abd76f6c9605ecd6554d6d9b1 \ + --hash=sha256:8458d7b1287c5fb128c90e23381cf99dcde74beaf6c7ff6384ce84d6fe090adb + # via + # gcp-docuploader + # gcp-releasetool +colorlog==6.7.0 \ + --hash=sha256:0d33ca236784a1ba3ff9c532d4964126d8a2c44f1f0cb1d2b0728196f512f662 \ + --hash=sha256:bd94bd21c1e13fac7bd3153f4bc3a7dc0eb0974b8bc2fdf1a989e474f6e582e5 + # via gcp-docuploader +cryptography==38.0.1 \ + --hash=sha256:0297ffc478bdd237f5ca3a7dc96fc0d315670bfa099c04dc3a4a2172008a405a \ + --hash=sha256:10d1f29d6292fc95acb597bacefd5b9e812099d75a6469004fd38ba5471a977f \ + --hash=sha256:16fa61e7481f4b77ef53991075de29fc5bacb582a1244046d2e8b4bb72ef66d0 \ + --hash=sha256:194044c6b89a2f9f169df475cc167f6157eb9151cc69af8a2a163481d45cc407 \ + --hash=sha256:1db3d807a14931fa317f96435695d9ec386be7b84b618cc61cfa5d08b0ae33d7 \ + --hash=sha256:3261725c0ef84e7592597606f6583385fed2a5ec3909f43bc475ade9729a41d6 \ + --hash=sha256:3b72c360427889b40f36dc214630e688c2fe03e16c162ef0aa41da7ab1455153 \ + --hash=sha256:3e3a2599e640927089f932295a9a247fc40a5bdf69b0484532f530471a382750 \ + --hash=sha256:3fc26e22840b77326a764ceb5f02ca2d342305fba08f002a8c1f139540cdfaad \ + --hash=sha256:5067ee7f2bce36b11d0e334abcd1ccf8c541fc0bbdaf57cdd511fdee53e879b6 \ + --hash=sha256:52e7bee800ec869b4031093875279f1ff2ed12c1e2f74923e8f49c916afd1d3b \ + --hash=sha256:64760ba5331e3f1794d0bcaabc0d0c39e8c60bf67d09c93dc0e54189dfd7cfe5 \ + --hash=sha256:765fa194a0f3372d83005ab83ab35d7c5526c4e22951e46059b8ac678b44fa5a \ + --hash=sha256:79473cf8a5cbc471979bd9378c9f425384980fcf2ab6534b18ed7d0d9843987d \ + --hash=sha256:896dd3a66959d3a5ddcfc140a53391f69ff1e8f25d93f0e2e7830c6de90ceb9d \ + --hash=sha256:89ed49784ba88c221756ff4d4755dbc03b3c8d2c5103f6d6b4f83a0fb1e85294 \ + --hash=sha256:ac7e48f7e7261207d750fa7e55eac2d45f720027d5703cd9007e9b37bbb59ac0 \ + --hash=sha256:ad7353f6ddf285aeadfaf79e5a6829110106ff8189391704c1d8801aa0bae45a \ + --hash=sha256:b0163a849b6f315bf52815e238bc2b2346604413fa7c1601eea84bcddb5fb9ac \ + --hash=sha256:b6c9b706316d7b5a137c35e14f4103e2115b088c412140fdbd5f87c73284df61 \ + --hash=sha256:c2e5856248a416767322c8668ef1845ad46ee62629266f84a8f007a317141013 \ + --hash=sha256:ca9f6784ea96b55ff41708b92c3f6aeaebde4c560308e5fbbd3173fbc466e94e \ + --hash=sha256:d1a5bd52d684e49a36582193e0b89ff267704cd4025abefb9e26803adeb3e5fb \ + --hash=sha256:d3971e2749a723e9084dd507584e2a2761f78ad2c638aa31e80bc7a15c9db4f9 \ + --hash=sha256:d4ef6cc305394ed669d4d9eebf10d3a101059bdcf2669c366ec1d14e4fb227bd \ + --hash=sha256:d9e69ae01f99abe6ad646947bba8941e896cb3aa805be2597a0400e0764b5818 + # via + # gcp-releasetool + # secretstorage +gcp-docuploader==0.6.3 \ + --hash=sha256:ba8c9d76b3bbac54b0311c503a373b00edc2dc02d6d54ea9507045adb8e870f7 \ + --hash=sha256:c0f5aaa82ce1854a386197e4e359b120ad6d4e57ae2c812fce42219a3288026b + # via -r requirements.in +gcp-releasetool==1.8.7 \ + --hash=sha256:3d2a67c9db39322194afb3b427e9cb0476ce8f2a04033695f0aeb63979fc2b37 \ + --hash=sha256:5e4d28f66e90780d77f3ecf1e9155852b0c3b13cbccb08ab07e66b2357c8da8d + # via -r requirements.in +google-api-core==2.8.2 \ + --hash=sha256:06f7244c640322b508b125903bb5701bebabce8832f85aba9335ec00b3d02edc \ + --hash=sha256:93c6a91ccac79079ac6bbf8b74ee75db970cc899278b97d53bc012f35908cf50 + # via + # -r requirements.in + # google-cloud-core + # google-cloud-storage +google-auth==2.11.0 \ + --hash=sha256:be62acaae38d0049c21ca90f27a23847245c9f161ff54ede13af2cb6afecbac9 \ + --hash=sha256:ed65ecf9f681832298e29328e1ef0a3676e3732b2e56f41532d45f70a22de0fb + # via + # -r requirements.in + # gcp-releasetool + # google-api-core + # google-cloud-core + # google-cloud-storage +google-cloud-core==2.3.1 \ + --hash=sha256:113ba4f492467d5bd442c8d724c1a25ad7384045c3178369038840ecdd19346c \ + --hash=sha256:34334359cb04187bdc80ddcf613e462dfd7a3aabbc3fe4d118517ab4b9303d53 + # via + # -r requirements.in + # google-cloud-storage +google-cloud-storage==2.0.0 \ + --hash=sha256:a57a15aead0f9dfbd4381f1bfdbe8bf89818a4bd75bab846cafcefb2db846c47 \ + --hash=sha256:ec4be60bb223a3a960f0d01697d849b86d91cad815a84915a32ed3635e93a5e7 + # via + # -r requirements.in + # gcp-docuploader +google-crc32c==1.3.0 \ + --hash=sha256:04e7c220798a72fd0f08242bc8d7a05986b2a08a0573396187fd32c1dcdd58b3 \ + --hash=sha256:05340b60bf05b574159e9bd940152a47d38af3fb43803ffe71f11d704b7696a6 \ + --hash=sha256:12674a4c3b56b706153a358eaa1018c4137a5a04635b92b4652440d3d7386206 \ + --hash=sha256:127f9cc3ac41b6a859bd9dc4321097b1a4f6aa7fdf71b4f9227b9e3ebffb4422 \ + --hash=sha256:13af315c3a0eec8bb8b8d80b8b128cb3fcd17d7e4edafc39647846345a3f003a \ + --hash=sha256:1926fd8de0acb9d15ee757175ce7242e235482a783cd4ec711cc999fc103c24e \ + --hash=sha256:226f2f9b8e128a6ca6a9af9b9e8384f7b53a801907425c9a292553a3a7218ce0 \ + --hash=sha256:276de6273eb074a35bc598f8efbc00c7869c5cf2e29c90748fccc8c898c244df \ + --hash=sha256:318f73f5484b5671f0c7f5f63741ab020a599504ed81d209b5c7129ee4667407 \ + --hash=sha256:3bbce1be3687bbfebe29abdb7631b83e6b25da3f4e1856a1611eb21854b689ea \ + --hash=sha256:42ae4781333e331a1743445931b08ebdad73e188fd554259e772556fc4937c48 \ + --hash=sha256:58be56ae0529c664cc04a9c76e68bb92b091e0194d6e3c50bea7e0f266f73713 \ + --hash=sha256:5da2c81575cc3ccf05d9830f9e8d3c70954819ca9a63828210498c0774fda1a3 \ + --hash=sha256:6311853aa2bba4064d0c28ca54e7b50c4d48e3de04f6770f6c60ebda1e975267 \ + --hash=sha256:650e2917660e696041ab3dcd7abac160b4121cd9a484c08406f24c5964099829 \ + --hash=sha256:6a4db36f9721fdf391646685ecffa404eb986cbe007a3289499020daf72e88a2 \ + --hash=sha256:779cbf1ce375b96111db98fca913c1f5ec11b1d870e529b1dc7354b2681a8c3a \ + --hash=sha256:7f6fe42536d9dcd3e2ffb9d3053f5d05221ae3bbcefbe472bdf2c71c793e3183 \ + --hash=sha256:891f712ce54e0d631370e1f4997b3f182f3368179198efc30d477c75d1f44942 \ + --hash=sha256:95c68a4b9b7828ba0428f8f7e3109c5d476ca44996ed9a5f8aac6269296e2d59 \ + --hash=sha256:96a8918a78d5d64e07c8ea4ed2bc44354e3f93f46a4866a40e8db934e4c0d74b \ + --hash=sha256:9c3cf890c3c0ecfe1510a452a165431b5831e24160c5fcf2071f0f85ca5a47cd \ + --hash=sha256:9f58099ad7affc0754ae42e6d87443299f15d739b0ce03c76f515153a5cda06c \ + --hash=sha256:a0b9e622c3b2b8d0ce32f77eba617ab0d6768b82836391e4f8f9e2074582bf02 \ + --hash=sha256:a7f9cbea4245ee36190f85fe1814e2d7b1e5f2186381b082f5d59f99b7f11328 \ + --hash=sha256:bab4aebd525218bab4ee615786c4581952eadc16b1ff031813a2fd51f0cc7b08 \ + --hash=sha256:c124b8c8779bf2d35d9b721e52d4adb41c9bfbde45e6a3f25f0820caa9aba73f \ + --hash=sha256:c9da0a39b53d2fab3e5467329ed50e951eb91386e9d0d5b12daf593973c3b168 \ + --hash=sha256:ca60076c388728d3b6ac3846842474f4250c91efbfe5afa872d3ffd69dd4b318 \ + --hash=sha256:cb6994fff247987c66a8a4e550ef374671c2b82e3c0d2115e689d21e511a652d \ + --hash=sha256:d1c1d6236feab51200272d79b3d3e0f12cf2cbb12b208c835b175a21efdb0a73 \ + --hash=sha256:dd7760a88a8d3d705ff562aa93f8445ead54f58fd482e4f9e2bafb7e177375d4 \ + --hash=sha256:dda4d8a3bb0b50f540f6ff4b6033f3a74e8bf0bd5320b70fab2c03e512a62812 \ + --hash=sha256:e0f1ff55dde0ebcfbef027edc21f71c205845585fffe30d4ec4979416613e9b3 \ + --hash=sha256:e7a539b9be7b9c00f11ef16b55486141bc2cdb0c54762f84e3c6fc091917436d \ + --hash=sha256:eb0b14523758e37802f27b7f8cd973f5f3d33be7613952c0df904b68c4842f0e \ + --hash=sha256:ed447680ff21c14aaceb6a9f99a5f639f583ccfe4ce1a5e1d48eb41c3d6b3217 \ + --hash=sha256:f52a4ad2568314ee713715b1e2d79ab55fab11e8b304fd1462ff5cccf4264b3e \ + --hash=sha256:fbd60c6aaa07c31d7754edbc2334aef50601b7f1ada67a96eb1eb57c7c72378f \ + --hash=sha256:fc28e0db232c62ca0c3600884933178f0825c99be4474cdd645e378a10588125 \ + --hash=sha256:fe31de3002e7b08eb20823b3735b97c86c5926dd0581c7710a680b418a8709d4 \ + --hash=sha256:fec221a051150eeddfdfcff162e6db92c65ecf46cb0f7bb1bf812a1520ec026b \ + --hash=sha256:ff71073ebf0e42258a42a0b34f2c09ec384977e7f6808999102eedd5b49920e3 + # via + # -r requirements.in + # google-resumable-media +google-resumable-media==2.3.3 \ + --hash=sha256:27c52620bd364d1c8116eaac4ea2afcbfb81ae9139fb3199652fcac1724bfb6c \ + --hash=sha256:5b52774ea7a829a8cdaa8bd2d4c3d4bc660c91b30857ab2668d0eb830f4ea8c5 + # via google-cloud-storage +googleapis-common-protos==1.56.3 \ + --hash=sha256:6f1369b58ed6cf3a4b7054a44ebe8d03b29c309257583a2bbdc064cd1e4a1442 \ + --hash=sha256:87955d7b3a73e6e803f2572a33179de23989ebba725e05ea42f24838b792e461 + # via + # -r requirements.in + # google-api-core +idna==3.4 \ + --hash=sha256:814f528e8dead7d329833b91c5faa87d60bf71824cd12a7530b5526063d02cb4 \ + --hash=sha256:90b77e79eaa3eba6de819a0c442c0b4ceefc341a7a2ab77d7562bf49f425c5c2 + # via + # -r requirements.in + # requests +importlib-metadata==4.8.3 \ + --hash=sha256:65a9576a5b2d58ca44d133c42a241905cc45e34d2c06fd5ba2bafa221e5d7b5e \ + --hash=sha256:766abffff765960fcc18003801f7044eb6755ffae4521c8e8ce8e83b9c9b0668 + # via + # -r requirements.in + # keyring +jeepney==0.7.1 \ + --hash=sha256:1b5a0ea5c0e7b166b2f5895b91a08c14de8915afda4407fb5022a195224958ac \ + --hash=sha256:fa9e232dfa0c498bd0b8a3a73b8d8a31978304dcef0515adc859d4e096f96f4f + # via + # -r requirements.in + # keyring + # secretstorage +jinja2==3.0.3 \ + --hash=sha256:077ce6014f7b40d03b47d1f1ca4b0fc8328a692bd284016f806ed0eaca390ad8 \ + --hash=sha256:611bb273cd68f3b993fabdc4064fc858c5b47a973cb5aa7999ec1ba405c87cd7 + # via + # -r requirements.in + # gcp-releasetool +keyring==23.4.1 \ + --hash=sha256:17e49fb0d6883c2b4445359434dba95aad84aabb29bbff044ad0ed7100232eca \ + --hash=sha256:89cbd74d4683ed164c8082fb38619341097741323b3786905c6dac04d6915a55 + # via + # -r requirements.in + # gcp-releasetool +markupsafe==2.0.1 \ + --hash=sha256:01a9b8ea66f1658938f65b93a85ebe8bc016e6769611be228d797c9d998dd298 \ + --hash=sha256:023cb26ec21ece8dc3907c0e8320058b2e0cb3c55cf9564da612bc325bed5e64 \ + --hash=sha256:0446679737af14f45767963a1a9ef7620189912317d095f2d9ffa183a4d25d2b \ + --hash=sha256:04635854b943835a6ea959e948d19dcd311762c5c0c6e1f0e16ee57022669194 \ + --hash=sha256:0717a7390a68be14b8c793ba258e075c6f4ca819f15edfc2a3a027c823718567 \ + --hash=sha256:0955295dd5eec6cb6cc2fe1698f4c6d84af2e92de33fbcac4111913cd100a6ff \ + --hash=sha256:0d4b31cc67ab36e3392bbf3862cfbadac3db12bdd8b02a2731f509ed5b829724 \ + --hash=sha256:10f82115e21dc0dfec9ab5c0223652f7197feb168c940f3ef61563fc2d6beb74 \ + --hash=sha256:168cd0a3642de83558a5153c8bd34f175a9a6e7f6dc6384b9655d2697312a646 \ + --hash=sha256:1d609f577dc6e1aa17d746f8bd3c31aa4d258f4070d61b2aa5c4166c1539de35 \ + --hash=sha256:1f2ade76b9903f39aa442b4aadd2177decb66525062db244b35d71d0ee8599b6 \ + --hash=sha256:20dca64a3ef2d6e4d5d615a3fd418ad3bde77a47ec8a23d984a12b5b4c74491a \ + --hash=sha256:2a7d351cbd8cfeb19ca00de495e224dea7e7d919659c2841bbb7f420ad03e2d6 \ + --hash=sha256:2d7d807855b419fc2ed3e631034685db6079889a1f01d5d9dac950f764da3dad \ + --hash=sha256:2ef54abee730b502252bcdf31b10dacb0a416229b72c18b19e24a4509f273d26 \ + --hash=sha256:36bc903cbb393720fad60fc28c10de6acf10dc6cc883f3e24ee4012371399a38 \ + --hash=sha256:37205cac2a79194e3750b0af2a5720d95f786a55ce7df90c3af697bfa100eaac \ + --hash=sha256:3c112550557578c26af18a1ccc9e090bfe03832ae994343cfdacd287db6a6ae7 \ + --hash=sha256:3dd007d54ee88b46be476e293f48c85048603f5f516008bee124ddd891398ed6 \ + --hash=sha256:4296f2b1ce8c86a6aea78613c34bb1a672ea0e3de9c6ba08a960efe0b0a09047 \ + --hash=sha256:47ab1e7b91c098ab893b828deafa1203de86d0bc6ab587b160f78fe6c4011f75 \ + --hash=sha256:49e3ceeabbfb9d66c3aef5af3a60cc43b85c33df25ce03d0031a608b0a8b2e3f \ + --hash=sha256:4dc8f9fb58f7364b63fd9f85013b780ef83c11857ae79f2feda41e270468dd9b \ + --hash=sha256:4efca8f86c54b22348a5467704e3fec767b2db12fc39c6d963168ab1d3fc9135 \ + --hash=sha256:53edb4da6925ad13c07b6d26c2a852bd81e364f95301c66e930ab2aef5b5ddd8 \ + --hash=sha256:5855f8438a7d1d458206a2466bf82b0f104a3724bf96a1c781ab731e4201731a \ + --hash=sha256:594c67807fb16238b30c44bdf74f36c02cdf22d1c8cda91ef8a0ed8dabf5620a \ + --hash=sha256:5b6d930f030f8ed98e3e6c98ffa0652bdb82601e7a016ec2ab5d7ff23baa78d1 \ + --hash=sha256:5bb28c636d87e840583ee3adeb78172efc47c8b26127267f54a9c0ec251d41a9 \ + --hash=sha256:60bf42e36abfaf9aff1f50f52644b336d4f0a3fd6d8a60ca0d054ac9f713a864 \ + --hash=sha256:611d1ad9a4288cf3e3c16014564df047fe08410e628f89805e475368bd304914 \ + --hash=sha256:6300b8454aa6930a24b9618fbb54b5a68135092bc666f7b06901f897fa5c2fee \ + --hash=sha256:63f3268ba69ace99cab4e3e3b5840b03340efed0948ab8f78d2fd87ee5442a4f \ + --hash=sha256:6557b31b5e2c9ddf0de32a691f2312a32f77cd7681d8af66c2692efdbef84c18 \ + --hash=sha256:693ce3f9e70a6cf7d2fb9e6c9d8b204b6b39897a2c4a1aa65728d5ac97dcc1d8 \ + --hash=sha256:6a7fae0dd14cf60ad5ff42baa2e95727c3d81ded453457771d02b7d2b3f9c0c2 \ + --hash=sha256:6c4ca60fa24e85fe25b912b01e62cb969d69a23a5d5867682dd3e80b5b02581d \ + --hash=sha256:6fcf051089389abe060c9cd7caa212c707e58153afa2c649f00346ce6d260f1b \ + --hash=sha256:7d91275b0245b1da4d4cfa07e0faedd5b0812efc15b702576d103293e252af1b \ + --hash=sha256:89c687013cb1cd489a0f0ac24febe8c7a666e6e221b783e53ac50ebf68e45d86 \ + --hash=sha256:8d206346619592c6200148b01a2142798c989edcb9c896f9ac9722a99d4e77e6 \ + --hash=sha256:905fec760bd2fa1388bb5b489ee8ee5f7291d692638ea5f67982d968366bef9f \ + --hash=sha256:97383d78eb34da7e1fa37dd273c20ad4320929af65d156e35a5e2d89566d9dfb \ + --hash=sha256:984d76483eb32f1bcb536dc27e4ad56bba4baa70be32fa87152832cdd9db0833 \ + --hash=sha256:99df47edb6bda1249d3e80fdabb1dab8c08ef3975f69aed437cb69d0a5de1e28 \ + --hash=sha256:9f02365d4e99430a12647f09b6cc8bab61a6564363f313126f775eb4f6ef798e \ + --hash=sha256:a30e67a65b53ea0a5e62fe23682cfe22712e01f453b95233b25502f7c61cb415 \ + --hash=sha256:ab3ef638ace319fa26553db0624c4699e31a28bb2a835c5faca8f8acf6a5a902 \ + --hash=sha256:aca6377c0cb8a8253e493c6b451565ac77e98c2951c45f913e0b52facdcff83f \ + --hash=sha256:add36cb2dbb8b736611303cd3bfcee00afd96471b09cda130da3581cbdc56a6d \ + --hash=sha256:b2f4bf27480f5e5e8ce285a8c8fd176c0b03e93dcc6646477d4630e83440c6a9 \ + --hash=sha256:b7f2d075102dc8c794cbde1947378051c4e5180d52d276987b8d28a3bd58c17d \ + --hash=sha256:baa1a4e8f868845af802979fcdbf0bb11f94f1cb7ced4c4b8a351bb60d108145 \ + --hash=sha256:be98f628055368795d818ebf93da628541e10b75b41c559fdf36d104c5787066 \ + --hash=sha256:bf5d821ffabf0ef3533c39c518f3357b171a1651c1ff6827325e4489b0e46c3c \ + --hash=sha256:c47adbc92fc1bb2b3274c4b3a43ae0e4573d9fbff4f54cd484555edbf030baf1 \ + --hash=sha256:cdfba22ea2f0029c9261a4bd07e830a8da012291fbe44dc794e488b6c9bb353a \ + --hash=sha256:d6c7ebd4e944c85e2c3421e612a7057a2f48d478d79e61800d81468a8d842207 \ + --hash=sha256:d7f9850398e85aba693bb640262d3611788b1f29a79f0c93c565694658f4071f \ + --hash=sha256:d8446c54dc28c01e5a2dbac5a25f071f6653e6e40f3a8818e8b45d790fe6ef53 \ + --hash=sha256:deb993cacb280823246a026e3b2d81c493c53de6acfd5e6bfe31ab3402bb37dd \ + --hash=sha256:e0f138900af21926a02425cf736db95be9f4af72ba1bb21453432a07f6082134 \ + --hash=sha256:e9936f0b261d4df76ad22f8fee3ae83b60d7c3e871292cd42f40b81b70afae85 \ + --hash=sha256:f0567c4dc99f264f49fe27da5f735f414c4e7e7dd850cfd8e69f0862d7c74ea9 \ + --hash=sha256:f5653a225f31e113b152e56f154ccbe59eeb1c7487b39b9d9f9cdb58e6c79dc5 \ + --hash=sha256:f826e31d18b516f653fe296d967d700fddad5901ae07c622bb3705955e1faa94 \ + --hash=sha256:f8ba0e8349a38d3001fae7eadded3f6606f0da5d748ee53cc1dab1d6527b9509 \ + --hash=sha256:f9081981fe268bd86831e5c75f7de206ef275defcb82bc70740ae6dc507aee51 \ + --hash=sha256:fa130dd50c57d53368c9d59395cb5526eda596d3ffe36666cd81a44d56e48872 + # via + # -r requirements.in + # jinja2 +packaging==21.3 \ + --hash=sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb \ + --hash=sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522 + # via + # -r requirements.in + # gcp-releasetool +protobuf==3.19.5 \ + --hash=sha256:1867f93b06a183f87696871bb8d1e99ee71dbb69d468ce1f0cc8bf3d30f982f3 \ + --hash=sha256:3c4160b601220627f7e91154e572baf5e161a9c3f445a8242d536ee3d0b7b17c \ + --hash=sha256:4ee2af7051d3b10c8a4fe6fd1a2c69f201fea36aeee7086cf202a692e1b99ee1 \ + --hash=sha256:5266c36cc0af3bb3dbf44f199d225b33da66a9a5c3bdc2b14865ad10eddf0e37 \ + --hash=sha256:5470f892961af464ae6eaf0f3099e2c1190ae8c7f36f174b89491281341f79ca \ + --hash=sha256:66d14b5b90090353efe75c9fb1bf65ef7267383034688d255b500822e37d5c2f \ + --hash=sha256:67efb5d20618020aa9596e17bfc37ca068c28ec0c1507d9507f73c93d46c9855 \ + --hash=sha256:696e6cfab94cc15a14946f2bf72719dced087d437adbd994fff34f38986628bc \ + --hash=sha256:6a02172b9650f819d01fb8e224fc69b0706458fc1ab4f1c669281243c71c1a5e \ + --hash=sha256:6eca9ae238ba615d702387a2ddea635d535d769994a9968c09a4ca920c487ab9 \ + --hash=sha256:950abd6c00e7b51f87ae8b18a0ce4d69fea217f62f171426e77de5061f6d9850 \ + --hash=sha256:9e1d74032f56ff25f417cfe84c8147047732e5059137ca42efad20cbbd25f5e0 \ + --hash=sha256:9e42b1cf2ecd8a1bd161239e693f22035ba99905ae6d7efeac8a0546c7ec1a27 \ + --hash=sha256:9f957ef53e872d58a0afd3bf6d80d48535d28c99b40e75e6634cbc33ea42fd54 \ + --hash=sha256:a89aa0c042e61e11ade320b802d6db4ee5391d8d973e46d3a48172c1597789f8 \ + --hash=sha256:c0f80876a8ff0ae7064084ed094eb86497bd5a3812e6fc96a05318b92301674e \ + --hash=sha256:c44e3282cff74ad18c7e8a0375f407f69ee50c2116364b44492a196293e08b21 \ + --hash=sha256:d249519ba5ecf5dd6b18150c9b6bcde510b273714b696f3923ff8308fc11ae49 \ + --hash=sha256:d3973a2d58aefc7d1230725c2447ce7f86a71cbc094b86a77c6ee1505ac7cdb1 \ + --hash=sha256:dca2284378a5f2a86ffed35c6ac147d14c48b525eefcd1083e5a9ce28dfa8657 \ + --hash=sha256:e63b0b3c42e51c94add62b010366cd4979cb6d5f06158bcae8faac4c294f91e1 \ + --hash=sha256:f2b599a21c9a32e171ec29a2ac54e03297736c578698e11b099d031f79da114b \ + --hash=sha256:f2bde37667b18c2b5280df83bc799204394a5d2d774e4deaf9de0eb741df6833 \ + --hash=sha256:f4f909f4dde413dec435a44b0894956d55bb928ded7d6e3c726556ca4c796e84 \ + --hash=sha256:f976234e20ab2785f54224bcdafa027674e23663b132fa3ca0caa291a6cfbde7 \ + --hash=sha256:f9cebda093c2f6bfed88f1c17cdade09d4d96096421b344026feee236532d4de + # via + # -r requirements.in + # gcp-docuploader + # gcp-releasetool + # google-api-core + # google-cloud-storage + # googleapis-common-protos +pyasn1==0.4.8 \ + --hash=sha256:39c7e2ec30515947ff4e87fb6f456dfc6e84857d34be479c9d4a4ba4bf46aa5d \ + --hash=sha256:aef77c9fb94a3ac588e87841208bdec464471d9871bd5050a287cc9a475cd0ba + # via + # pyasn1-modules + # rsa +pyasn1-modules==0.2.8 \ + --hash=sha256:905f84c712230b2c592c19470d3ca8d552de726050d1d1716282a1f6146be65e \ + --hash=sha256:a50b808ffeb97cb3601dd25981f6b016cbb3d31fbf57a8b8a87428e6158d0c74 + # via google-auth +pycparser==2.21 \ + --hash=sha256:8ee45429555515e1f6b185e78100aea234072576aa43ab53aefcae078162fca9 \ + --hash=sha256:e644fdec12f7872f86c58ff790da456218b10f863970249516d60a5eaca77206 + # via + # -r requirements.in + # cffi +pyjwt==2.4.0 \ + --hash=sha256:72d1d253f32dbd4f5c88eaf1fdc62f3a19f676ccbadb9dbc5d07e951b2b26daf \ + --hash=sha256:d42908208c699b3b973cbeb01a969ba6a96c821eefb1c5bfe4c390c01d67abba + # via + # -r requirements.in + # gcp-releasetool +pyparsing==3.0.9 \ + --hash=sha256:2b020ecf7d21b687f219b71ecad3631f644a47f01403fa1d1036b0c6416d70fb \ + --hash=sha256:5026bae9a10eeaefb61dab2f09052b9f4307d44aee4eda64b309723d8d206bbc + # via + # -r requirements.in + # packaging +pyperclip==1.8.2 \ + --hash=sha256:105254a8b04934f0bc84e9c24eb360a591aaf6535c9def5f29d92af107a9bf57 + # via + # -r requirements.in + # gcp-releasetool +python-dateutil==2.8.2 \ + --hash=sha256:0123cacc1627ae19ddf3c27a5de5bd67ee4586fbdd6440d9748f8abb483d3e86 \ + --hash=sha256:961d03dc3453ebbc59dbdea9e4e11c5651520a876d0f4db161e8674aae935da9 + # via + # -r requirements.in + # gcp-releasetool +requests==2.27.1 \ + --hash=sha256:68d7c56fd5a8999887728ef304a6d12edc7be74f1cfa47714fc8b414525c9a61 \ + --hash=sha256:f22fa1e554c9ddfd16e6e41ac79759e17be9e492b3587efa038054674760e72d + # via + # -r requirements.in + # gcp-releasetool + # google-api-core + # google-cloud-storage +rsa==4.9 \ + --hash=sha256:90260d9058e514786967344d0ef75fa8727eed8a7d2e43ce9f4bcf1b536174f7 \ + --hash=sha256:e38464a49c6c85d7f1351b0126661487a7e0a14a50f1675ec50eb34d4f20ef21 + # via + # -r requirements.in + # google-auth +secretstorage==3.3.3 \ + --hash=sha256:2403533ef369eca6d2ba81718576c5e0f564d5cca1b58f73a8b23e7d4eeebd77 \ + --hash=sha256:f356e6628222568e3af06f2eba8df495efa13b3b63081dafd4f7d9a7b7bc9f99 + # via keyring +six==1.16.0 \ + --hash=sha256:1e61c37477a1626458e36f7b1d82aa5c9b094fa4802892072e49de9c60c4c926 \ + --hash=sha256:8abb2f1d86890a2dfb989f9a77cfcfd3e47c2a354b01111771326f8aa26e0254 + # via + # -r requirements.in + # gcp-docuploader + # google-auth + # python-dateutil +typing-extensions==4.1.1 \ + --hash=sha256:1a9462dcc3347a79b1f1c0271fbe79e844580bb598bafa1ed208b94da3cdcd42 \ + --hash=sha256:21c85e0fe4b9a155d0799430b0ad741cdce7e359660ccbd8b530613e8df88ce2 + # via -r requirements.in +urllib3==1.26.12 \ + --hash=sha256:3fa96cf423e6987997fc326ae8df396db2a8b7c667747d47ddd8ecba91f4a74e \ + --hash=sha256:b930dd878d5a8afb066a637fbb35144fe7901e3b209d1cd4f524bd0e9deee997 + # via + # -r requirements.in + # requests +zipp==3.6.0 \ + --hash=sha256:71c644c5369f4a6e07636f0aa966270449561fcea2e3d6747b8d23efaa9d7832 \ + --hash=sha256:9fe5ea21568a0a70e50f273397638d39b03353731e6cbbb3fd8502a33fec40bc + # via + # -r requirements.in + # importlib-metadata diff --git a/CHANGELOG.md b/CHANGELOG.md index 7de1d219..571e73cc 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,5 +1,32 @@ # Changelog +## [2.6.0](https://github.com/googleapis/java-container/compare/v2.5.2...v2.6.0) (2022-10-04) + + +### Features + +* added High Throughput Logging API for Google Kubernetes Engine ([144a9ee](https://github.com/googleapis/java-container/commit/144a9ee5f035d5d9c0bc73d5f9712fe30e3ba8e7)) +* Added High Throughput Logging API for Google Kubernetes Engine ([#780](https://github.com/googleapis/java-container/issues/780)) ([144a9ee](https://github.com/googleapis/java-container/commit/144a9ee5f035d5d9c0bc73d5f9712fe30e3ba8e7)) + + +### Bug Fixes + +* update protobuf to v3.21.7 ([cbba028](https://github.com/googleapis/java-container/commit/cbba02878516184d91d8c5f85ca927026b80a7ed)) + + +### Documentation + +* missing period in description for min CPU platform ([144a9ee](https://github.com/googleapis/java-container/commit/144a9ee5f035d5d9c0bc73d5f9712fe30e3ba8e7)) +* missing period in description for min CPU platform ([144a9ee](https://github.com/googleapis/java-container/commit/144a9ee5f035d5d9c0bc73d5f9712fe30e3ba8e7)) +* ReservationAffinity key field docs incorrect ([144a9ee](https://github.com/googleapis/java-container/commit/144a9ee5f035d5d9c0bc73d5f9712fe30e3ba8e7)) +* ReservationAffinity key field docs incorrect ([144a9ee](https://github.com/googleapis/java-container/commit/144a9ee5f035d5d9c0bc73d5f9712fe30e3ba8e7)) + + +### Dependencies + +* Update dependency com.google.cloud:google-cloud-shared-dependencies to v3.0.4 ([#819](https://github.com/googleapis/java-container/issues/819)) ([e2f3a0c](https://github.com/googleapis/java-container/commit/e2f3a0c2742dc4baf4d3bea03794be354c340aa0)) +* Update dependency protobuf to v3.20.3 ([#818](https://github.com/googleapis/java-container/issues/818)) ([6897c90](https://github.com/googleapis/java-container/commit/6897c906a5d2a6abb76acadc0cf7a6a7c8970b01)) + ## [2.5.2](https://github.com/googleapis/java-container/compare/v2.5.1...v2.5.2) (2022-09-16) diff --git a/README.md b/README.md index 1ae2a235..4e3cd083 100644 --- a/README.md +++ b/README.md @@ -41,7 +41,7 @@ If you are using Maven without BOM, add this to your dependencies: com.google.cloud google-cloud-container - 2.5.1 + 2.5.2 ``` @@ -49,20 +49,20 @@ If you are using Maven without BOM, add this to your dependencies: If you are using Gradle 5.x or later, add this to your dependencies: ```Groovy -implementation platform('com.google.cloud:libraries-bom:26.1.1') +implementation platform('com.google.cloud:libraries-bom:26.1.2') implementation 'com.google.cloud:google-cloud-container' ``` If you are using Gradle without BOM, add this to your dependencies: ```Groovy -implementation 'com.google.cloud:google-cloud-container:2.5.1' +implementation 'com.google.cloud:google-cloud-container:2.5.2' ``` If you are using SBT, add this to your dependencies: ```Scala -libraryDependencies += "com.google.cloud" % "google-cloud-container" % "2.5.1" +libraryDependencies += "com.google.cloud" % "google-cloud-container" % "2.5.2" ``` ## Authentication diff --git a/google-cloud-container-bom/pom.xml b/google-cloud-container-bom/pom.xml index ccd0b967..436df049 100644 --- a/google-cloud-container-bom/pom.xml +++ b/google-cloud-container-bom/pom.xml @@ -3,7 +3,7 @@ 4.0.0 com.google.cloud google-cloud-container-bom - 2.5.2 + 2.6.0 pom com.google.cloud @@ -52,27 +52,27 @@ com.google.cloud google-cloud-container - 2.5.2 + 2.6.0 com.google.api.grpc grpc-google-cloud-container-v1 - 2.5.2 + 2.6.0 com.google.api.grpc grpc-google-cloud-container-v1beta1 - 2.5.2 + 2.6.0 com.google.api.grpc proto-google-cloud-container-v1 - 2.5.2 + 2.6.0 com.google.api.grpc proto-google-cloud-container-v1beta1 - 2.5.2 + 2.6.0 diff --git a/google-cloud-container/pom.xml b/google-cloud-container/pom.xml index e798503d..48d7399c 100644 --- a/google-cloud-container/pom.xml +++ b/google-cloud-container/pom.xml @@ -3,7 +3,7 @@ 4.0.0 com.google.cloud google-cloud-container - 2.5.2 + 2.6.0 jar Google Cloud Container https://github.com/googleapis/java-container @@ -11,7 +11,7 @@ com.google.cloud google-cloud-container-parent - 2.5.2 + 2.6.0 google-cloud-container diff --git a/google-cloud-container/src/main/java/com/google/cloud/container/v1/ClusterManagerClient.java b/google-cloud-container/src/main/java/com/google/cloud/container/v1/ClusterManagerClient.java index fc8341a2..9ecee9b6 100644 --- a/google-cloud-container/src/main/java/com/google/cloud/container/v1/ClusterManagerClient.java +++ b/google-cloud-container/src/main/java/com/google/cloud/container/v1/ClusterManagerClient.java @@ -88,8 +88,11 @@ * calls that map to API methods. Sample code to get started: * * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
  *   String parent = "parent-995424086";
  *   ListClustersResponse response = clusterManagerClient.listClusters(parent);
@@ -125,8 +128,11 @@
  * 
To customize credentials:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ClusterManagerSettings clusterManagerSettings =
  *     ClusterManagerSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -137,8 +143,11 @@
  * 
To customize the endpoint:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ClusterManagerSettings clusterManagerSettings =
  *     ClusterManagerSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ClusterManagerClient clusterManagerClient = ClusterManagerClient.create(clusterManagerSettings);
@@ -203,8 +212,11 @@ public ClusterManagerStub getStub() {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String parent = "parent-995424086";
    *   ListClustersResponse response = clusterManagerClient.listClusters(parent);
@@ -228,8 +240,11 @@ public final ListClustersResponse listClusters(String parent) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -258,8 +273,11 @@ public final ListClustersResponse listClusters(String projectId, String zone) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListClustersRequest request =
    *       ListClustersRequest.newBuilder()
@@ -285,8 +303,11 @@ public final ListClustersResponse listClusters(ListClustersRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListClustersRequest request =
    *       ListClustersRequest.newBuilder()
@@ -312,8 +333,11 @@ public final UnaryCallable listCluste
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   Cluster response = clusterManagerClient.getCluster(name);
@@ -336,8 +360,11 @@ public final Cluster getCluster(String name) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -373,8 +400,11 @@ public final Cluster getCluster(String projectId, String zone, String clusterId)
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetClusterRequest request =
    *       GetClusterRequest.newBuilder()
@@ -401,8 +431,11 @@ public final Cluster getCluster(GetClusterRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetClusterRequest request =
    *       GetClusterRequest.newBuilder()
@@ -439,8 +472,11 @@ public final UnaryCallable getClusterCallable() {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String parent = "parent-995424086";
    *   Cluster cluster = Cluster.newBuilder().build();
@@ -478,8 +514,11 @@ public final Operation createCluster(String parent, Cluster cluster) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -526,8 +565,11 @@ public final Operation createCluster(String projectId, String zone, Cluster clus
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CreateClusterRequest request =
    *       CreateClusterRequest.newBuilder()
@@ -565,8 +607,11 @@ public final Operation createCluster(CreateClusterRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CreateClusterRequest request =
    *       CreateClusterRequest.newBuilder()
@@ -593,8 +638,11 @@ public final UnaryCallable createClusterCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   ClusterUpdate update = ClusterUpdate.newBuilder().build();
@@ -620,8 +668,11 @@ public final Operation updateCluster(String name, ClusterUpdate update) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -661,8 +712,11 @@ public final Operation updateCluster(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateClusterRequest request =
    *       UpdateClusterRequest.newBuilder()
@@ -690,8 +744,11 @@ public final Operation updateCluster(UpdateClusterRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateClusterRequest request =
    *       UpdateClusterRequest.newBuilder()
@@ -719,8 +776,11 @@ public final UnaryCallable updateClusterCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateNodePoolRequest request =
    *       UpdateNodePoolRequest.newBuilder()
@@ -743,6 +803,7 @@ public final UnaryCallable updateClusterCallabl
    *           .setGcfsConfig(GcfsConfig.newBuilder().build())
    *           .setConfidentialNodes(ConfidentialNodes.newBuilder().build())
    *           .setGvnic(VirtualNIC.newBuilder().build())
+   *           .setLoggingConfig(NodePoolLoggingConfig.newBuilder().build())
    *           .build();
    *   Operation response = clusterManagerClient.updateNodePool(request);
    * }
@@ -762,8 +823,11 @@ public final Operation updateNodePool(UpdateNodePoolRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateNodePoolRequest request =
    *       UpdateNodePoolRequest.newBuilder()
@@ -786,6 +850,7 @@ public final Operation updateNodePool(UpdateNodePoolRequest request) {
    *           .setGcfsConfig(GcfsConfig.newBuilder().build())
    *           .setConfidentialNodes(ConfidentialNodes.newBuilder().build())
    *           .setGvnic(VirtualNIC.newBuilder().build())
+   *           .setLoggingConfig(NodePoolLoggingConfig.newBuilder().build())
    *           .build();
    *   ApiFuture future =
    *       clusterManagerClient.updateNodePoolCallable().futureCall(request);
@@ -805,8 +870,11 @@ public final UnaryCallable updateNodePoolCalla
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolAutoscalingRequest request =
    *       SetNodePoolAutoscalingRequest.newBuilder()
@@ -835,8 +903,11 @@ public final Operation setNodePoolAutoscaling(SetNodePoolAutoscalingRequest requ
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolAutoscalingRequest request =
    *       SetNodePoolAutoscalingRequest.newBuilder()
@@ -866,8 +937,11 @@ public final Operation setNodePoolAutoscaling(SetNodePoolAutoscalingRequest requ
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   String loggingService = "loggingService1098570326";
@@ -906,8 +980,11 @@ public final Operation setLoggingService(String name, String loggingService) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -958,8 +1035,11 @@ public final Operation setLoggingService(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLoggingServiceRequest request =
    *       SetLoggingServiceRequest.newBuilder()
@@ -987,8 +1067,11 @@ public final Operation setLoggingService(SetLoggingServiceRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLoggingServiceRequest request =
    *       SetLoggingServiceRequest.newBuilder()
@@ -1016,8 +1099,11 @@ public final UnaryCallable setLoggingServic
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   String monitoringService = "monitoringService-1431578291";
@@ -1056,8 +1142,11 @@ public final Operation setMonitoringService(String name, String monitoringServic
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1108,8 +1197,11 @@ public final Operation setMonitoringService(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMonitoringServiceRequest request =
    *       SetMonitoringServiceRequest.newBuilder()
@@ -1137,8 +1229,11 @@ public final Operation setMonitoringService(SetMonitoringServiceRequest request)
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMonitoringServiceRequest request =
    *       SetMonitoringServiceRequest.newBuilder()
@@ -1167,8 +1262,11 @@ public final Operation setMonitoringService(SetMonitoringServiceRequest request)
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   AddonsConfig addonsConfig = AddonsConfig.newBuilder().build();
@@ -1195,8 +1293,11 @@ public final Operation setAddonsConfig(String name, AddonsConfig addonsConfig) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1238,8 +1339,11 @@ public final Operation setAddonsConfig(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetAddonsConfigRequest request =
    *       SetAddonsConfigRequest.newBuilder()
@@ -1267,8 +1371,11 @@ public final Operation setAddonsConfig(SetAddonsConfigRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetAddonsConfigRequest request =
    *       SetAddonsConfigRequest.newBuilder()
@@ -1298,8 +1405,11 @@ public final UnaryCallable setAddonsConfigCal
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   List locations = new ArrayList<>();
@@ -1334,8 +1444,11 @@ public final Operation setLocations(String name, List locations) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1384,8 +1497,11 @@ public final Operation setLocations(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLocationsRequest request =
    *       SetLocationsRequest.newBuilder()
@@ -1417,8 +1533,11 @@ public final Operation setLocations(SetLocationsRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLocationsRequest request =
    *       SetLocationsRequest.newBuilder()
@@ -1448,8 +1567,11 @@ public final UnaryCallable setLocationsCallable(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   String masterVersion = "masterVersion1167095830";
@@ -1481,8 +1603,11 @@ public final Operation updateMaster(String name, String masterVersion) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1529,8 +1654,11 @@ public final Operation updateMaster(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateMasterRequest request =
    *       UpdateMasterRequest.newBuilder()
@@ -1558,8 +1686,11 @@ public final Operation updateMaster(UpdateMasterRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateMasterRequest request =
    *       UpdateMasterRequest.newBuilder()
@@ -1587,8 +1718,11 @@ public final UnaryCallable updateMasterCallable(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMasterAuthRequest request =
    *       SetMasterAuthRequest.newBuilder()
@@ -1617,8 +1751,11 @@ public final Operation setMasterAuth(SetMasterAuthRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMasterAuthRequest request =
    *       SetMasterAuthRequest.newBuilder()
@@ -1652,8 +1789,11 @@ public final UnaryCallable setMasterAuthCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   Operation response = clusterManagerClient.deleteCluster(name);
@@ -1682,8 +1822,11 @@ public final Operation deleteCluster(String name) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1725,8 +1868,11 @@ public final Operation deleteCluster(String projectId, String zone, String clust
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   DeleteClusterRequest request =
    *       DeleteClusterRequest.newBuilder()
@@ -1759,8 +1905,11 @@ public final Operation deleteCluster(DeleteClusterRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   DeleteClusterRequest request =
    *       DeleteClusterRequest.newBuilder()
@@ -1787,8 +1936,11 @@ public final UnaryCallable deleteClusterCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1817,8 +1969,11 @@ public final ListOperationsResponse listOperations(String projectId, String zone
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListOperationsRequest request =
    *       ListOperationsRequest.newBuilder()
@@ -1844,8 +1999,11 @@ public final ListOperationsResponse listOperations(ListOperationsRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListOperationsRequest request =
    *       ListOperationsRequest.newBuilder()
@@ -1872,8 +2030,11 @@ public final ListOperationsResponse listOperations(ListOperationsRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   Operation response = clusterManagerClient.getOperation(name);
@@ -1896,8 +2057,11 @@ public final Operation getOperation(String name) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1933,8 +2097,11 @@ public final Operation getOperation(String projectId, String zone, String operat
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetOperationRequest request =
    *       GetOperationRequest.newBuilder()
@@ -1961,8 +2128,11 @@ public final Operation getOperation(GetOperationRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetOperationRequest request =
    *       GetOperationRequest.newBuilder()
@@ -1988,8 +2158,11 @@ public final UnaryCallable getOperationCallable(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   clusterManagerClient.cancelOperation(name);
@@ -2012,8 +2185,11 @@ public final void cancelOperation(String name) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2049,8 +2225,11 @@ public final void cancelOperation(String projectId, String zone, String operatio
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CancelOperationRequest request =
    *       CancelOperationRequest.newBuilder()
@@ -2077,8 +2256,11 @@ public final void cancelOperation(CancelOperationRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CancelOperationRequest request =
    *       CancelOperationRequest.newBuilder()
@@ -2104,8 +2286,11 @@ public final UnaryCallable cancelOperationCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   ServerConfig response = clusterManagerClient.getServerConfig(name);
@@ -2128,8 +2313,11 @@ public final ServerConfig getServerConfig(String name) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2158,8 +2346,11 @@ public final ServerConfig getServerConfig(String projectId, String zone) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetServerConfigRequest request =
    *       GetServerConfigRequest.newBuilder()
@@ -2185,8 +2376,11 @@ public final ServerConfig getServerConfig(GetServerConfigRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetServerConfigRequest request =
    *       GetServerConfigRequest.newBuilder()
@@ -2213,8 +2407,11 @@ public final UnaryCallable getServerConfig
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetJSONWebKeysRequest request =
    *       GetJSONWebKeysRequest.newBuilder().setParent("parent-995424086").build();
@@ -2237,8 +2434,11 @@ public final GetJSONWebKeysResponse getJSONWebKeys(GetJSONWebKeysRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetJSONWebKeysRequest request =
    *       GetJSONWebKeysRequest.newBuilder().setParent("parent-995424086").build();
@@ -2261,8 +2461,11 @@ public final GetJSONWebKeysResponse getJSONWebKeys(GetJSONWebKeysRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String parent = "parent-995424086";
    *   ListNodePoolsResponse response = clusterManagerClient.listNodePools(parent);
@@ -2285,8 +2488,11 @@ public final ListNodePoolsResponse listNodePools(String parent) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2324,8 +2530,11 @@ public final ListNodePoolsResponse listNodePools(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListNodePoolsRequest request =
    *       ListNodePoolsRequest.newBuilder()
@@ -2352,8 +2561,11 @@ public final ListNodePoolsResponse listNodePools(ListNodePoolsRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListNodePoolsRequest request =
    *       ListNodePoolsRequest.newBuilder()
@@ -2380,8 +2592,11 @@ public final UnaryCallable listNode
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   NodePool response = clusterManagerClient.getNodePool(name);
@@ -2404,8 +2619,11 @@ public final NodePool getNodePool(String name) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2446,8 +2664,11 @@ public final NodePool getNodePool(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetNodePoolRequest request =
    *       GetNodePoolRequest.newBuilder()
@@ -2475,8 +2696,11 @@ public final NodePool getNodePool(GetNodePoolRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetNodePoolRequest request =
    *       GetNodePoolRequest.newBuilder()
@@ -2503,8 +2727,11 @@ public final UnaryCallable getNodePoolCallable() {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String parent = "parent-995424086";
    *   NodePool nodePool = NodePool.newBuilder().build();
@@ -2530,8 +2757,11 @@ public final Operation createNodePool(String parent, NodePool nodePool) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2572,8 +2802,11 @@ public final Operation createNodePool(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CreateNodePoolRequest request =
    *       CreateNodePoolRequest.newBuilder()
@@ -2601,8 +2834,11 @@ public final Operation createNodePool(CreateNodePoolRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CreateNodePoolRequest request =
    *       CreateNodePoolRequest.newBuilder()
@@ -2630,8 +2866,11 @@ public final UnaryCallable createNodePoolCalla
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   Operation response = clusterManagerClient.deleteNodePool(name);
@@ -2654,8 +2893,11 @@ public final Operation deleteNodePool(String name) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2697,8 +2939,11 @@ public final Operation deleteNodePool(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   DeleteNodePoolRequest request =
    *       DeleteNodePoolRequest.newBuilder()
@@ -2726,8 +2971,11 @@ public final Operation deleteNodePool(DeleteNodePoolRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   DeleteNodePoolRequest request =
    *       DeleteNodePoolRequest.newBuilder()
@@ -2755,8 +3003,11 @@ public final UnaryCallable deleteNodePoolCalla
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CompleteNodePoolUpgradeRequest request =
    *       CompleteNodePoolUpgradeRequest.newBuilder().setName("name3373707").build();
@@ -2778,8 +3029,11 @@ public final void completeNodePoolUpgrade(CompleteNodePoolUpgradeRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CompleteNodePoolUpgradeRequest request =
    *       CompleteNodePoolUpgradeRequest.newBuilder().setName("name3373707").build();
@@ -2803,8 +3057,11 @@ public final void completeNodePoolUpgrade(CompleteNodePoolUpgradeRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   Operation response = clusterManagerClient.rollbackNodePoolUpgrade(name);
@@ -2830,8 +3087,11 @@ public final Operation rollbackNodePoolUpgrade(String name) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2874,8 +3134,11 @@ public final Operation rollbackNodePoolUpgrade(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   RollbackNodePoolUpgradeRequest request =
    *       RollbackNodePoolUpgradeRequest.newBuilder()
@@ -2905,8 +3168,11 @@ public final Operation rollbackNodePoolUpgrade(RollbackNodePoolUpgradeRequest re
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   RollbackNodePoolUpgradeRequest request =
    *       RollbackNodePoolUpgradeRequest.newBuilder()
@@ -2936,8 +3202,11 @@ public final Operation rollbackNodePoolUpgrade(RollbackNodePoolUpgradeRequest re
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolManagementRequest request =
    *       SetNodePoolManagementRequest.newBuilder()
@@ -2966,8 +3235,11 @@ public final Operation setNodePoolManagement(SetNodePoolManagementRequest reques
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolManagementRequest request =
    *       SetNodePoolManagementRequest.newBuilder()
@@ -2997,8 +3269,11 @@ public final Operation setNodePoolManagement(SetNodePoolManagementRequest reques
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLabelsRequest request =
    *       SetLabelsRequest.newBuilder()
@@ -3027,8 +3302,11 @@ public final Operation setLabels(SetLabelsRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLabelsRequest request =
    *       SetLabelsRequest.newBuilder()
@@ -3056,8 +3334,11 @@ public final UnaryCallable setLabelsCallable() {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   boolean enabled = true;
@@ -3083,8 +3364,11 @@ public final Operation setLegacyAbac(String name, boolean enabled) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -3124,8 +3408,11 @@ public final Operation setLegacyAbac(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLegacyAbacRequest request =
    *       SetLegacyAbacRequest.newBuilder()
@@ -3153,8 +3440,11 @@ public final Operation setLegacyAbac(SetLegacyAbacRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLegacyAbacRequest request =
    *       SetLegacyAbacRequest.newBuilder()
@@ -3182,8 +3472,11 @@ public final UnaryCallable setLegacyAbacCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   Operation response = clusterManagerClient.startIPRotation(name);
@@ -3206,8 +3499,11 @@ public final Operation startIPRotation(String name) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -3243,8 +3539,11 @@ public final Operation startIPRotation(String projectId, String zone, String clu
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   StartIPRotationRequest request =
    *       StartIPRotationRequest.newBuilder()
@@ -3272,8 +3571,11 @@ public final Operation startIPRotation(StartIPRotationRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   StartIPRotationRequest request =
    *       StartIPRotationRequest.newBuilder()
@@ -3301,8 +3603,11 @@ public final UnaryCallable startIPRotationCal
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   Operation response = clusterManagerClient.completeIPRotation(name);
@@ -3326,8 +3631,11 @@ public final Operation completeIPRotation(String name) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -3363,8 +3671,11 @@ public final Operation completeIPRotation(String projectId, String zone, String
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CompleteIPRotationRequest request =
    *       CompleteIPRotationRequest.newBuilder()
@@ -3391,8 +3702,11 @@ public final Operation completeIPRotation(CompleteIPRotationRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CompleteIPRotationRequest request =
    *       CompleteIPRotationRequest.newBuilder()
@@ -3421,8 +3735,11 @@ public final UnaryCallable completeIPRotat
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolSizeRequest request =
    *       SetNodePoolSizeRequest.newBuilder()
@@ -3453,8 +3770,11 @@ public final Operation setNodePoolSize(SetNodePoolSizeRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolSizeRequest request =
    *       SetNodePoolSizeRequest.newBuilder()
@@ -3483,8 +3803,11 @@ public final UnaryCallable setNodePoolSizeCal
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   NetworkPolicy networkPolicy = NetworkPolicy.newBuilder().build();
@@ -3510,8 +3833,11 @@ public final Operation setNetworkPolicy(String name, NetworkPolicy networkPolicy
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -3552,8 +3878,11 @@ public final Operation setNetworkPolicy(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNetworkPolicyRequest request =
    *       SetNetworkPolicyRequest.newBuilder()
@@ -3581,8 +3910,11 @@ public final Operation setNetworkPolicy(SetNetworkPolicyRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNetworkPolicyRequest request =
    *       SetNetworkPolicyRequest.newBuilder()
@@ -3610,8 +3942,11 @@ public final UnaryCallable setNetworkPolicyC
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String name = "name3373707";
    *   MaintenancePolicy maintenancePolicy = MaintenancePolicy.newBuilder().build();
@@ -3641,8 +3976,11 @@ public final Operation setMaintenancePolicy(String name, MaintenancePolicy maint
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -3681,8 +4019,11 @@ public final Operation setMaintenancePolicy(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMaintenancePolicyRequest request =
    *       SetMaintenancePolicyRequest.newBuilder()
@@ -3710,8 +4051,11 @@ public final Operation setMaintenancePolicy(SetMaintenancePolicyRequest request)
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMaintenancePolicyRequest request =
    *       SetMaintenancePolicyRequest.newBuilder()
@@ -3740,8 +4084,11 @@ public final Operation setMaintenancePolicy(SetMaintenancePolicyRequest request)
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListUsableSubnetworksRequest request =
    *       ListUsableSubnetworksRequest.newBuilder()
@@ -3772,8 +4119,11 @@ public final ListUsableSubnetworksPagedResponse listUsableSubnetworks(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListUsableSubnetworksRequest request =
    *       ListUsableSubnetworksRequest.newBuilder()
@@ -3803,8 +4153,11 @@ public final ListUsableSubnetworksPagedResponse listUsableSubnetworks(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListUsableSubnetworksRequest request =
    *       ListUsableSubnetworksRequest.newBuilder()
diff --git a/google-cloud-container/src/main/java/com/google/cloud/container/v1/ClusterManagerSettings.java b/google-cloud-container/src/main/java/com/google/cloud/container/v1/ClusterManagerSettings.java
index 5a804bae..4a7cc807 100644
--- a/google-cloud-container/src/main/java/com/google/cloud/container/v1/ClusterManagerSettings.java
+++ b/google-cloud-container/src/main/java/com/google/cloud/container/v1/ClusterManagerSettings.java
@@ -95,17 +95,17 @@
  * 
For example, to set the total timeout of listClusters to 30 seconds:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ClusterManagerSettings.Builder clusterManagerSettingsBuilder =
  *     ClusterManagerSettings.newBuilder();
  * clusterManagerSettingsBuilder
  *     .listClustersSettings()
  *     .setRetrySettings(
- *         clusterManagerSettingsBuilder
- *             .listClustersSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         clusterManagerSettingsBuilder.listClustersSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ClusterManagerSettings clusterManagerSettings = clusterManagerSettingsBuilder.build();
diff --git a/google-cloud-container/src/main/java/com/google/cloud/container/v1/package-info.java b/google-cloud-container/src/main/java/com/google/cloud/container/v1/package-info.java
index c2a61838..84370f49 100644
--- a/google-cloud-container/src/main/java/com/google/cloud/container/v1/package-info.java
+++ b/google-cloud-container/src/main/java/com/google/cloud/container/v1/package-info.java
@@ -26,8 +26,11 @@
  * 
Sample for ClusterManagerClient:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
  *   String parent = "parent-995424086";
  *   ListClustersResponse response = clusterManagerClient.listClusters(parent);
diff --git a/google-cloud-container/src/main/java/com/google/cloud/container/v1/stub/ClusterManagerStubSettings.java b/google-cloud-container/src/main/java/com/google/cloud/container/v1/stub/ClusterManagerStubSettings.java
index bb8d316d..99e83bbf 100644
--- a/google-cloud-container/src/main/java/com/google/cloud/container/v1/stub/ClusterManagerStubSettings.java
+++ b/google-cloud-container/src/main/java/com/google/cloud/container/v1/stub/ClusterManagerStubSettings.java
@@ -111,17 +111,17 @@
  * 
For example, to set the total timeout of listClusters to 30 seconds:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ClusterManagerStubSettings.Builder clusterManagerSettingsBuilder =
  *     ClusterManagerStubSettings.newBuilder();
  * clusterManagerSettingsBuilder
  *     .listClustersSettings()
  *     .setRetrySettings(
- *         clusterManagerSettingsBuilder
- *             .listClustersSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         clusterManagerSettingsBuilder.listClustersSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ClusterManagerStubSettings clusterManagerSettings = clusterManagerSettingsBuilder.build();
diff --git a/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/ClusterManagerClient.java b/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/ClusterManagerClient.java
index 2f3eb4ff..7b84c554 100644
--- a/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/ClusterManagerClient.java
+++ b/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/ClusterManagerClient.java
@@ -93,8 +93,11 @@
  * calls that map to API methods. Sample code to get started:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
  *   String projectId = "projectId-894832108";
  *   String zone = "zone3744684";
@@ -131,8 +134,11 @@
  * 
To customize credentials:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ClusterManagerSettings clusterManagerSettings =
  *     ClusterManagerSettings.newBuilder()
  *         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
@@ -143,8 +149,11 @@
  * 
To customize the endpoint:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ClusterManagerSettings clusterManagerSettings =
  *     ClusterManagerSettings.newBuilder().setEndpoint(myEndpoint).build();
  * ClusterManagerClient clusterManagerClient = ClusterManagerClient.create(clusterManagerSettings);
@@ -210,8 +219,11 @@ public ClusterManagerStub getStub() {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -240,8 +252,11 @@ public final ListClustersResponse listClusters(String projectId, String zone) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListClustersRequest request =
    *       ListClustersRequest.newBuilder()
@@ -267,8 +282,11 @@ public final ListClustersResponse listClusters(ListClustersRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListClustersRequest request =
    *       ListClustersRequest.newBuilder()
@@ -294,8 +312,11 @@ public final UnaryCallable listCluste
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -331,8 +352,11 @@ public final Cluster getCluster(String projectId, String zone, String clusterId)
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetClusterRequest request =
    *       GetClusterRequest.newBuilder()
@@ -359,8 +383,11 @@ public final Cluster getCluster(GetClusterRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetClusterRequest request =
    *       GetClusterRequest.newBuilder()
@@ -397,8 +424,11 @@ public final UnaryCallable getClusterCallable() {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -445,8 +475,11 @@ public final Operation createCluster(String projectId, String zone, Cluster clus
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CreateClusterRequest request =
    *       CreateClusterRequest.newBuilder()
@@ -484,8 +517,11 @@ public final Operation createCluster(CreateClusterRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CreateClusterRequest request =
    *       CreateClusterRequest.newBuilder()
@@ -512,8 +548,11 @@ public final UnaryCallable createClusterCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -553,8 +592,11 @@ public final Operation updateCluster(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateClusterRequest request =
    *       UpdateClusterRequest.newBuilder()
@@ -582,8 +624,11 @@ public final Operation updateCluster(UpdateClusterRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateClusterRequest request =
    *       UpdateClusterRequest.newBuilder()
@@ -611,8 +656,11 @@ public final UnaryCallable updateClusterCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateNodePoolRequest request =
    *       UpdateNodePoolRequest.newBuilder()
@@ -635,6 +683,7 @@ public final UnaryCallable updateClusterCallabl
    *           .setGcfsConfig(GcfsConfig.newBuilder().build())
    *           .setConfidentialNodes(ConfidentialNodes.newBuilder().build())
    *           .setGvnic(VirtualNIC.newBuilder().build())
+   *           .setLoggingConfig(NodePoolLoggingConfig.newBuilder().build())
    *           .build();
    *   Operation response = clusterManagerClient.updateNodePool(request);
    * }
@@ -654,8 +703,11 @@ public final Operation updateNodePool(UpdateNodePoolRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateNodePoolRequest request =
    *       UpdateNodePoolRequest.newBuilder()
@@ -678,6 +730,7 @@ public final Operation updateNodePool(UpdateNodePoolRequest request) {
    *           .setGcfsConfig(GcfsConfig.newBuilder().build())
    *           .setConfidentialNodes(ConfidentialNodes.newBuilder().build())
    *           .setGvnic(VirtualNIC.newBuilder().build())
+   *           .setLoggingConfig(NodePoolLoggingConfig.newBuilder().build())
    *           .build();
    *   ApiFuture future =
    *       clusterManagerClient.updateNodePoolCallable().futureCall(request);
@@ -697,8 +750,11 @@ public final UnaryCallable updateNodePoolCalla
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolAutoscalingRequest request =
    *       SetNodePoolAutoscalingRequest.newBuilder()
@@ -727,8 +783,11 @@ public final Operation setNodePoolAutoscaling(SetNodePoolAutoscalingRequest requ
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolAutoscalingRequest request =
    *       SetNodePoolAutoscalingRequest.newBuilder()
@@ -758,8 +817,11 @@ public final Operation setNodePoolAutoscaling(SetNodePoolAutoscalingRequest requ
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -810,8 +872,11 @@ public final Operation setLoggingService(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLoggingServiceRequest request =
    *       SetLoggingServiceRequest.newBuilder()
@@ -839,8 +904,11 @@ public final Operation setLoggingService(SetLoggingServiceRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLoggingServiceRequest request =
    *       SetLoggingServiceRequest.newBuilder()
@@ -868,8 +936,11 @@ public final UnaryCallable setLoggingServic
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -920,8 +991,11 @@ public final Operation setMonitoringService(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMonitoringServiceRequest request =
    *       SetMonitoringServiceRequest.newBuilder()
@@ -949,8 +1023,11 @@ public final Operation setMonitoringService(SetMonitoringServiceRequest request)
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMonitoringServiceRequest request =
    *       SetMonitoringServiceRequest.newBuilder()
@@ -979,8 +1056,11 @@ public final Operation setMonitoringService(SetMonitoringServiceRequest request)
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1022,8 +1102,11 @@ public final Operation setAddonsConfig(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetAddonsConfigRequest request =
    *       SetAddonsConfigRequest.newBuilder()
@@ -1051,8 +1134,11 @@ public final Operation setAddonsConfig(SetAddonsConfigRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetAddonsConfigRequest request =
    *       SetAddonsConfigRequest.newBuilder()
@@ -1082,8 +1168,11 @@ public final UnaryCallable setAddonsConfigCal
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1132,8 +1221,11 @@ public final Operation setLocations(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLocationsRequest request =
    *       SetLocationsRequest.newBuilder()
@@ -1165,8 +1257,11 @@ public final Operation setLocations(SetLocationsRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLocationsRequest request =
    *       SetLocationsRequest.newBuilder()
@@ -1196,8 +1291,11 @@ public final UnaryCallable setLocationsCallable(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1244,8 +1342,11 @@ public final Operation updateMaster(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateMasterRequest request =
    *       UpdateMasterRequest.newBuilder()
@@ -1273,8 +1374,11 @@ public final Operation updateMaster(UpdateMasterRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   UpdateMasterRequest request =
    *       UpdateMasterRequest.newBuilder()
@@ -1302,8 +1406,11 @@ public final UnaryCallable updateMasterCallable(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMasterAuthRequest request =
    *       SetMasterAuthRequest.newBuilder()
@@ -1332,8 +1439,11 @@ public final Operation setMasterAuth(SetMasterAuthRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMasterAuthRequest request =
    *       SetMasterAuthRequest.newBuilder()
@@ -1367,8 +1477,11 @@ public final UnaryCallable setMasterAuthCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1410,8 +1523,11 @@ public final Operation deleteCluster(String projectId, String zone, String clust
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   DeleteClusterRequest request =
    *       DeleteClusterRequest.newBuilder()
@@ -1444,8 +1560,11 @@ public final Operation deleteCluster(DeleteClusterRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   DeleteClusterRequest request =
    *       DeleteClusterRequest.newBuilder()
@@ -1472,8 +1591,11 @@ public final UnaryCallable deleteClusterCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1502,8 +1624,11 @@ public final ListOperationsResponse listOperations(String projectId, String zone
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListOperationsRequest request =
    *       ListOperationsRequest.newBuilder()
@@ -1529,8 +1654,11 @@ public final ListOperationsResponse listOperations(ListOperationsRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListOperationsRequest request =
    *       ListOperationsRequest.newBuilder()
@@ -1557,8 +1685,11 @@ public final ListOperationsResponse listOperations(ListOperationsRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1594,8 +1725,11 @@ public final Operation getOperation(String projectId, String zone, String operat
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetOperationRequest request =
    *       GetOperationRequest.newBuilder()
@@ -1622,8 +1756,11 @@ public final Operation getOperation(GetOperationRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetOperationRequest request =
    *       GetOperationRequest.newBuilder()
@@ -1649,8 +1786,11 @@ public final UnaryCallable getOperationCallable(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1686,8 +1826,11 @@ public final void cancelOperation(String projectId, String zone, String operatio
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CancelOperationRequest request =
    *       CancelOperationRequest.newBuilder()
@@ -1714,8 +1857,11 @@ public final void cancelOperation(CancelOperationRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CancelOperationRequest request =
    *       CancelOperationRequest.newBuilder()
@@ -1741,8 +1887,11 @@ public final UnaryCallable cancelOperationCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1771,8 +1920,11 @@ public final ServerConfig getServerConfig(String projectId, String zone) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetServerConfigRequest request =
    *       GetServerConfigRequest.newBuilder()
@@ -1798,8 +1950,11 @@ public final ServerConfig getServerConfig(GetServerConfigRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetServerConfigRequest request =
    *       GetServerConfigRequest.newBuilder()
@@ -1825,8 +1980,11 @@ public final UnaryCallable getServerConfig
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -1864,8 +2022,11 @@ public final ListNodePoolsResponse listNodePools(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListNodePoolsRequest request =
    *       ListNodePoolsRequest.newBuilder()
@@ -1892,8 +2053,11 @@ public final ListNodePoolsResponse listNodePools(ListNodePoolsRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListNodePoolsRequest request =
    *       ListNodePoolsRequest.newBuilder()
@@ -1921,8 +2085,11 @@ public final UnaryCallable listNode
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetJSONWebKeysRequest request =
    *       GetJSONWebKeysRequest.newBuilder().setParent("parent-995424086").build();
@@ -1945,8 +2112,11 @@ public final GetJSONWebKeysResponse getJSONWebKeys(GetJSONWebKeysRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetJSONWebKeysRequest request =
    *       GetJSONWebKeysRequest.newBuilder().setParent("parent-995424086").build();
@@ -1969,8 +2139,11 @@ public final GetJSONWebKeysResponse getJSONWebKeys(GetJSONWebKeysRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2011,8 +2184,11 @@ public final NodePool getNodePool(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetNodePoolRequest request =
    *       GetNodePoolRequest.newBuilder()
@@ -2040,8 +2216,11 @@ public final NodePool getNodePool(GetNodePoolRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   GetNodePoolRequest request =
    *       GetNodePoolRequest.newBuilder()
@@ -2068,8 +2247,11 @@ public final UnaryCallable getNodePoolCallable() {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2110,8 +2292,11 @@ public final Operation createNodePool(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CreateNodePoolRequest request =
    *       CreateNodePoolRequest.newBuilder()
@@ -2139,8 +2324,11 @@ public final Operation createNodePool(CreateNodePoolRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CreateNodePoolRequest request =
    *       CreateNodePoolRequest.newBuilder()
@@ -2168,8 +2356,11 @@ public final UnaryCallable createNodePoolCalla
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2211,8 +2402,11 @@ public final Operation deleteNodePool(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   DeleteNodePoolRequest request =
    *       DeleteNodePoolRequest.newBuilder()
@@ -2240,8 +2434,11 @@ public final Operation deleteNodePool(DeleteNodePoolRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   DeleteNodePoolRequest request =
    *       DeleteNodePoolRequest.newBuilder()
@@ -2269,8 +2466,11 @@ public final UnaryCallable deleteNodePoolCalla
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CompleteNodePoolUpgradeRequest request =
    *       CompleteNodePoolUpgradeRequest.newBuilder().setName("name3373707").build();
@@ -2292,8 +2492,11 @@ public final void completeNodePoolUpgrade(CompleteNodePoolUpgradeRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CompleteNodePoolUpgradeRequest request =
    *       CompleteNodePoolUpgradeRequest.newBuilder().setName("name3373707").build();
@@ -2317,8 +2520,11 @@ public final void completeNodePoolUpgrade(CompleteNodePoolUpgradeRequest request
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2361,8 +2567,11 @@ public final Operation rollbackNodePoolUpgrade(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   RollbackNodePoolUpgradeRequest request =
    *       RollbackNodePoolUpgradeRequest.newBuilder()
@@ -2392,8 +2601,11 @@ public final Operation rollbackNodePoolUpgrade(RollbackNodePoolUpgradeRequest re
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   RollbackNodePoolUpgradeRequest request =
    *       RollbackNodePoolUpgradeRequest.newBuilder()
@@ -2423,8 +2635,11 @@ public final Operation rollbackNodePoolUpgrade(RollbackNodePoolUpgradeRequest re
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2474,8 +2689,11 @@ public final Operation setNodePoolManagement(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolManagementRequest request =
    *       SetNodePoolManagementRequest.newBuilder()
@@ -2504,8 +2722,11 @@ public final Operation setNodePoolManagement(SetNodePoolManagementRequest reques
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolManagementRequest request =
    *       SetNodePoolManagementRequest.newBuilder()
@@ -2535,8 +2756,11 @@ public final Operation setNodePoolManagement(SetNodePoolManagementRequest reques
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2589,8 +2813,11 @@ public final Operation setLabels(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLabelsRequest request =
    *       SetLabelsRequest.newBuilder()
@@ -2619,8 +2846,11 @@ public final Operation setLabels(SetLabelsRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLabelsRequest request =
    *       SetLabelsRequest.newBuilder()
@@ -2648,8 +2878,11 @@ public final UnaryCallable setLabelsCallable() {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2689,8 +2922,11 @@ public final Operation setLegacyAbac(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLegacyAbacRequest request =
    *       SetLegacyAbacRequest.newBuilder()
@@ -2718,8 +2954,11 @@ public final Operation setLegacyAbac(SetLegacyAbacRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetLegacyAbacRequest request =
    *       SetLegacyAbacRequest.newBuilder()
@@ -2747,8 +2986,11 @@ public final UnaryCallable setLegacyAbacCallabl
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2784,8 +3026,11 @@ public final Operation startIPRotation(String projectId, String zone, String clu
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   StartIPRotationRequest request =
    *       StartIPRotationRequest.newBuilder()
@@ -2813,8 +3058,11 @@ public final Operation startIPRotation(StartIPRotationRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   StartIPRotationRequest request =
    *       StartIPRotationRequest.newBuilder()
@@ -2842,8 +3090,11 @@ public final UnaryCallable startIPRotationCal
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -2879,8 +3130,11 @@ public final Operation completeIPRotation(String projectId, String zone, String
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CompleteIPRotationRequest request =
    *       CompleteIPRotationRequest.newBuilder()
@@ -2907,8 +3161,11 @@ public final Operation completeIPRotation(CompleteIPRotationRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   CompleteIPRotationRequest request =
    *       CompleteIPRotationRequest.newBuilder()
@@ -2937,8 +3194,11 @@ public final UnaryCallable completeIPRotat
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolSizeRequest request =
    *       SetNodePoolSizeRequest.newBuilder()
@@ -2969,8 +3229,11 @@ public final Operation setNodePoolSize(SetNodePoolSizeRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNodePoolSizeRequest request =
    *       SetNodePoolSizeRequest.newBuilder()
@@ -2999,8 +3262,11 @@ public final UnaryCallable setNodePoolSizeCal
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -3041,8 +3307,11 @@ public final Operation setNetworkPolicy(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNetworkPolicyRequest request =
    *       SetNetworkPolicyRequest.newBuilder()
@@ -3070,8 +3339,11 @@ public final Operation setNetworkPolicy(SetNetworkPolicyRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetNetworkPolicyRequest request =
    *       SetNetworkPolicyRequest.newBuilder()
@@ -3099,8 +3371,11 @@ public final UnaryCallable setNetworkPolicyC
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String projectId = "projectId-894832108";
    *   String zone = "zone3744684";
@@ -3139,8 +3414,11 @@ public final Operation setMaintenancePolicy(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMaintenancePolicyRequest request =
    *       SetMaintenancePolicyRequest.newBuilder()
@@ -3168,8 +3446,11 @@ public final Operation setMaintenancePolicy(SetMaintenancePolicyRequest request)
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   SetMaintenancePolicyRequest request =
    *       SetMaintenancePolicyRequest.newBuilder()
@@ -3198,8 +3479,11 @@ public final Operation setMaintenancePolicy(SetMaintenancePolicyRequest request)
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String parent = "parent-995424086";
    *   for (UsableSubnetwork element :
@@ -3226,8 +3510,11 @@ public final ListUsableSubnetworksPagedResponse listUsableSubnetworks(String par
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListUsableSubnetworksRequest request =
    *       ListUsableSubnetworksRequest.newBuilder()
@@ -3258,8 +3545,11 @@ public final ListUsableSubnetworksPagedResponse listUsableSubnetworks(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListUsableSubnetworksRequest request =
    *       ListUsableSubnetworksRequest.newBuilder()
@@ -3289,8 +3579,11 @@ public final ListUsableSubnetworksPagedResponse listUsableSubnetworks(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListUsableSubnetworksRequest request =
    *       ListUsableSubnetworksRequest.newBuilder()
@@ -3327,8 +3620,11 @@ public final ListUsableSubnetworksPagedResponse listUsableSubnetworks(
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   String parent = "parent-995424086";
    *   ListLocationsResponse response = clusterManagerClient.listLocations(parent);
@@ -3351,8 +3647,11 @@ public final ListLocationsResponse listLocations(String parent) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListLocationsRequest request =
    *       ListLocationsRequest.newBuilder().setParent("parent-995424086").build();
@@ -3374,8 +3673,11 @@ public final ListLocationsResponse listLocations(ListLocationsRequest request) {
    * 
Sample code:
    *
    * 
{@code
-   * // This snippet has been automatically generated for illustrative purposes only.
-   * // It may require modifications to work in your environment.
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
    * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
    *   ListLocationsRequest request =
    *       ListLocationsRequest.newBuilder().setParent("parent-995424086").build();
diff --git a/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/ClusterManagerSettings.java b/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/ClusterManagerSettings.java
index 5beb3530..9c8e7e5a 100644
--- a/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/ClusterManagerSettings.java
+++ b/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/ClusterManagerSettings.java
@@ -97,17 +97,17 @@
  * 
For example, to set the total timeout of listClusters to 30 seconds:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ClusterManagerSettings.Builder clusterManagerSettingsBuilder =
  *     ClusterManagerSettings.newBuilder();
  * clusterManagerSettingsBuilder
  *     .listClustersSettings()
  *     .setRetrySettings(
- *         clusterManagerSettingsBuilder
- *             .listClustersSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         clusterManagerSettingsBuilder.listClustersSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ClusterManagerSettings clusterManagerSettings = clusterManagerSettingsBuilder.build();
diff --git a/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/package-info.java b/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/package-info.java
index 798dffb4..12b1a422 100644
--- a/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/package-info.java
+++ b/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/package-info.java
@@ -26,8 +26,11 @@
  * 
Sample for ClusterManagerClient:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (ClusterManagerClient clusterManagerClient = ClusterManagerClient.create()) {
  *   String projectId = "projectId-894832108";
  *   String zone = "zone3744684";
diff --git a/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/stub/ClusterManagerStubSettings.java b/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/stub/ClusterManagerStubSettings.java
index 9e9eb1f5..3000fd94 100644
--- a/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/stub/ClusterManagerStubSettings.java
+++ b/google-cloud-container/src/main/java/com/google/cloud/container/v1beta1/stub/ClusterManagerStubSettings.java
@@ -113,17 +113,17 @@
  * 
For example, to set the total timeout of listClusters to 30 seconds:
  *
  * 
{@code
- * // This snippet has been automatically generated for illustrative purposes only.
- * // It may require modifications to work in your environment.
+ * // This snippet has been automatically generated and should be regarded as a code template only.
+ * // It will require modifications to work:
+ * // - It may require correct/in-range values for request initialization.
+ * // - It may require specifying regional endpoints when creating the service client as shown in
+ * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * ClusterManagerStubSettings.Builder clusterManagerSettingsBuilder =
  *     ClusterManagerStubSettings.newBuilder();
  * clusterManagerSettingsBuilder
  *     .listClustersSettings()
  *     .setRetrySettings(
- *         clusterManagerSettingsBuilder
- *             .listClustersSettings()
- *             .getRetrySettings()
- *             .toBuilder()
+ *         clusterManagerSettingsBuilder.listClustersSettings().getRetrySettings().toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
  *             .build());
  * ClusterManagerStubSettings clusterManagerSettings = clusterManagerSettingsBuilder.build();
diff --git a/google-cloud-container/src/test/java/com/google/cloud/container/v1/ClusterManagerClientTest.java b/google-cloud-container/src/test/java/com/google/cloud/container/v1/ClusterManagerClientTest.java
index 9f2c4d15..232616a3 100644
--- a/google-cloud-container/src/test/java/com/google/cloud/container/v1/ClusterManagerClientTest.java
+++ b/google-cloud-container/src/test/java/com/google/cloud/container/v1/ClusterManagerClientTest.java
@@ -81,6 +81,7 @@
 import com.google.container.v1.NodePoolAutoConfig;
 import com.google.container.v1.NodePoolAutoscaling;
 import com.google.container.v1.NodePoolDefaults;
+import com.google.container.v1.NodePoolLoggingConfig;
 import com.google.container.v1.NodeTaints;
 import com.google.container.v1.NotificationConfig;
 import com.google.container.v1.Operation;
@@ -712,6 +713,7 @@ public void updateNodePoolTest() throws Exception {
             .setGcfsConfig(GcfsConfig.newBuilder().build())
             .setConfidentialNodes(ConfidentialNodes.newBuilder().build())
             .setGvnic(VirtualNIC.newBuilder().build())
+            .setLoggingConfig(NodePoolLoggingConfig.newBuilder().build())
             .build();
 
     Operation actualResponse = client.updateNodePool(request);
@@ -741,6 +743,7 @@ public void updateNodePoolTest() throws Exception {
     Assert.assertEquals(request.getGcfsConfig(), actualRequest.getGcfsConfig());
     Assert.assertEquals(request.getConfidentialNodes(), actualRequest.getConfidentialNodes());
     Assert.assertEquals(request.getGvnic(), actualRequest.getGvnic());
+    Assert.assertEquals(request.getLoggingConfig(), actualRequest.getLoggingConfig());
     Assert.assertTrue(
         channelProvider.isHeaderSent(
             ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
@@ -774,6 +777,7 @@ public void updateNodePoolExceptionTest() throws Exception {
               .setGcfsConfig(GcfsConfig.newBuilder().build())
               .setConfidentialNodes(ConfidentialNodes.newBuilder().build())
               .setGvnic(VirtualNIC.newBuilder().build())
+              .setLoggingConfig(NodePoolLoggingConfig.newBuilder().build())
               .build();
       client.updateNodePool(request);
       Assert.fail("No exception raised");
diff --git a/google-cloud-container/src/test/java/com/google/cloud/container/v1beta1/ClusterManagerClientTest.java b/google-cloud-container/src/test/java/com/google/cloud/container/v1beta1/ClusterManagerClientTest.java
index 5c8ec01d..5549eab6 100644
--- a/google-cloud-container/src/test/java/com/google/cloud/container/v1beta1/ClusterManagerClientTest.java
+++ b/google-cloud-container/src/test/java/com/google/cloud/container/v1beta1/ClusterManagerClientTest.java
@@ -87,6 +87,7 @@
 import com.google.container.v1beta1.NodePoolAutoConfig;
 import com.google.container.v1beta1.NodePoolAutoscaling;
 import com.google.container.v1beta1.NodePoolDefaults;
+import com.google.container.v1beta1.NodePoolLoggingConfig;
 import com.google.container.v1beta1.NodeTaints;
 import com.google.container.v1beta1.NotificationConfig;
 import com.google.container.v1beta1.Operation;
@@ -493,6 +494,7 @@ public void updateNodePoolTest() throws Exception {
             .setGcfsConfig(GcfsConfig.newBuilder().build())
             .setConfidentialNodes(ConfidentialNodes.newBuilder().build())
             .setGvnic(VirtualNIC.newBuilder().build())
+            .setLoggingConfig(NodePoolLoggingConfig.newBuilder().build())
             .build();
 
     Operation actualResponse = client.updateNodePool(request);
@@ -522,6 +524,7 @@ public void updateNodePoolTest() throws Exception {
     Assert.assertEquals(request.getGcfsConfig(), actualRequest.getGcfsConfig());
     Assert.assertEquals(request.getConfidentialNodes(), actualRequest.getConfidentialNodes());
     Assert.assertEquals(request.getGvnic(), actualRequest.getGvnic());
+    Assert.assertEquals(request.getLoggingConfig(), actualRequest.getLoggingConfig());
     Assert.assertTrue(
         channelProvider.isHeaderSent(
             ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
@@ -555,6 +558,7 @@ public void updateNodePoolExceptionTest() throws Exception {
               .setGcfsConfig(GcfsConfig.newBuilder().build())
               .setConfidentialNodes(ConfidentialNodes.newBuilder().build())
               .setGvnic(VirtualNIC.newBuilder().build())
+              .setLoggingConfig(NodePoolLoggingConfig.newBuilder().build())
               .build();
       client.updateNodePool(request);
       Assert.fail("No exception raised");
diff --git a/grpc-google-cloud-container-v1/pom.xml b/grpc-google-cloud-container-v1/pom.xml
index 22285e6c..15d941c7 100644
--- a/grpc-google-cloud-container-v1/pom.xml
+++ b/grpc-google-cloud-container-v1/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   grpc-google-cloud-container-v1
-  2.5.2
+  2.6.0
   grpc-google-cloud-container-v1
   GRPC library for grpc-google-cloud-container-v1
   
     com.google.cloud
     google-cloud-container-parent
-    2.5.2
+    2.6.0
   
   
     
diff --git a/grpc-google-cloud-container-v1beta1/pom.xml b/grpc-google-cloud-container-v1beta1/pom.xml
index e2db3f84..ba0fb8a6 100644
--- a/grpc-google-cloud-container-v1beta1/pom.xml
+++ b/grpc-google-cloud-container-v1beta1/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   grpc-google-cloud-container-v1beta1
-  2.5.2
+  2.6.0
   grpc-google-cloud-container-v1beta1
   GRPC library for google-cloud-container
   
     com.google.cloud
     google-cloud-container-parent
-    2.5.2
+    2.6.0
   
   
     
diff --git a/pom.xml b/pom.xml
index 7f50d6a4..6ae68d2d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   com.google.cloud
   google-cloud-container-parent
   pom
-  2.5.2
+  2.6.0
   Google Cloud Container Parent
   https://github.com/googleapis/java-container
   
@@ -61,33 +61,33 @@
       
         com.google.api.grpc
         proto-google-cloud-container-v1
-        2.5.2
+        2.6.0
       
       
         com.google.api.grpc
         proto-google-cloud-container-v1beta1
-        2.5.2
+        2.6.0
       
       
         com.google.api.grpc
         grpc-google-cloud-container-v1beta1
-        2.5.2
+        2.6.0
       
       
         com.google.api.grpc
         grpc-google-cloud-container-v1
-        2.5.2
+        2.6.0
       
       
         com.google.cloud
         google-cloud-container
-        2.5.2
+        2.6.0
       
 
       
         com.google.cloud
         google-cloud-shared-dependencies
-        3.0.3
+        3.0.4
         pom
         import
       
diff --git a/proto-google-cloud-container-v1/pom.xml b/proto-google-cloud-container-v1/pom.xml
index da95136f..60fd0f1d 100644
--- a/proto-google-cloud-container-v1/pom.xml
+++ b/proto-google-cloud-container-v1/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   proto-google-cloud-container-v1
-  2.5.2
+  2.6.0
   proto-google-cloud-container-v1
   PROTO library for proto-google-cloud-container-v1
   
     com.google.cloud
     google-cloud-container-parent
-    2.5.2
+    2.6.0
   
   
     
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AcceleratorConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AcceleratorConfig.java
index aa6765ef..cbdf37bb 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AcceleratorConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AcceleratorConfig.java
@@ -53,81 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AcceleratorConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              acceleratorCount_ = input.readInt64();
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              acceleratorType_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              gpuPartitionSize_ = s;
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1.GPUSharingConfig.Builder subBuilder = null;
-              if (((bitField0_ & 0x00000001) != 0)) {
-                subBuilder = gpuSharingConfig_.toBuilder();
-              }
-              gpuSharingConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.GPUSharingConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gpuSharingConfig_);
-                gpuSharingConfig_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000001;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_AcceleratorConfig_descriptor;
@@ -342,7 +267,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeMessage(5, getGpuSharingConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -363,7 +288,7 @@ public int getSerializedSize() {
     if (((bitField0_ & 0x00000001) != 0)) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getGpuSharingConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -386,7 +311,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasGpuSharingConfig()) {
       if (!getGpuSharingConfig().equals(other.getGpuSharingConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -407,7 +332,7 @@ public int hashCode() {
       hash = (37 * hash) + GPU_SHARING_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getGpuSharingConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -670,7 +595,7 @@ public Builder mergeFrom(com.google.container.v1.AcceleratorConfig other) {
       if (other.hasGpuSharingConfig()) {
         mergeGpuSharingConfig(other.getGpuSharingConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -685,17 +610,56 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.AcceleratorConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                acceleratorCount_ = input.readInt64();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                acceleratorType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                gpuPartitionSize_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 42:
+              {
+                input.readMessage(
+                    getGpuSharingConfigFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.AcceleratorConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1199,7 +1163,18 @@ public AcceleratorConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AcceleratorConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AddonsConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AddonsConfig.java
index c8b997ad..e0c8d8b2 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AddonsConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AddonsConfig.java
@@ -51,191 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AddonsConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.HttpLoadBalancing.Builder subBuilder = null;
-              if (httpLoadBalancing_ != null) {
-                subBuilder = httpLoadBalancing_.toBuilder();
-              }
-              httpLoadBalancing_ =
-                  input.readMessage(
-                      com.google.container.v1.HttpLoadBalancing.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(httpLoadBalancing_);
-                httpLoadBalancing_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 18:
-            {
-              com.google.container.v1.HorizontalPodAutoscaling.Builder subBuilder = null;
-              if (horizontalPodAutoscaling_ != null) {
-                subBuilder = horizontalPodAutoscaling_.toBuilder();
-              }
-              horizontalPodAutoscaling_ =
-                  input.readMessage(
-                      com.google.container.v1.HorizontalPodAutoscaling.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(horizontalPodAutoscaling_);
-                horizontalPodAutoscaling_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1.KubernetesDashboard.Builder subBuilder = null;
-              if (kubernetesDashboard_ != null) {
-                subBuilder = kubernetesDashboard_.toBuilder();
-              }
-              kubernetesDashboard_ =
-                  input.readMessage(
-                      com.google.container.v1.KubernetesDashboard.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(kubernetesDashboard_);
-                kubernetesDashboard_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1.NetworkPolicyConfig.Builder subBuilder = null;
-              if (networkPolicyConfig_ != null) {
-                subBuilder = networkPolicyConfig_.toBuilder();
-              }
-              networkPolicyConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.NetworkPolicyConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkPolicyConfig_);
-                networkPolicyConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 58:
-            {
-              com.google.container.v1.CloudRunConfig.Builder subBuilder = null;
-              if (cloudRunConfig_ != null) {
-                subBuilder = cloudRunConfig_.toBuilder();
-              }
-              cloudRunConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.CloudRunConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(cloudRunConfig_);
-                cloudRunConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 66:
-            {
-              com.google.container.v1.DnsCacheConfig.Builder subBuilder = null;
-              if (dnsCacheConfig_ != null) {
-                subBuilder = dnsCacheConfig_.toBuilder();
-              }
-              dnsCacheConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.DnsCacheConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(dnsCacheConfig_);
-                dnsCacheConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 82:
-            {
-              com.google.container.v1.ConfigConnectorConfig.Builder subBuilder = null;
-              if (configConnectorConfig_ != null) {
-                subBuilder = configConnectorConfig_.toBuilder();
-              }
-              configConnectorConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.ConfigConnectorConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(configConnectorConfig_);
-                configConnectorConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 90:
-            {
-              com.google.container.v1.GcePersistentDiskCsiDriverConfig.Builder subBuilder = null;
-              if (gcePersistentDiskCsiDriverConfig_ != null) {
-                subBuilder = gcePersistentDiskCsiDriverConfig_.toBuilder();
-              }
-              gcePersistentDiskCsiDriverConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.GcePersistentDiskCsiDriverConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gcePersistentDiskCsiDriverConfig_);
-                gcePersistentDiskCsiDriverConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 114:
-            {
-              com.google.container.v1.GcpFilestoreCsiDriverConfig.Builder subBuilder = null;
-              if (gcpFilestoreCsiDriverConfig_ != null) {
-                subBuilder = gcpFilestoreCsiDriverConfig_.toBuilder();
-              }
-              gcpFilestoreCsiDriverConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.GcpFilestoreCsiDriverConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gcpFilestoreCsiDriverConfig_);
-                gcpFilestoreCsiDriverConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_AddonsConfig_descriptor;
@@ -374,7 +189,7 @@ public com.google.container.v1.HorizontalPodAutoscaling getHorizontalPodAutoscal
    * 
    *
    * @deprecated google.container.v1.AddonsConfig.kubernetes_dashboard is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1005
+   *     google/container/v1/cluster_service.proto;l=1009
    * @return Whether the kubernetesDashboard field is set.
    */
   @java.lang.Override
@@ -397,7 +212,7 @@ public boolean hasKubernetesDashboard() {
    * 
    *
    * @deprecated google.container.v1.AddonsConfig.kubernetes_dashboard is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1005
+   *     google/container/v1/cluster_service.proto;l=1009
    * @return The kubernetesDashboard.
    */
   @java.lang.Override
@@ -782,7 +597,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (gcpFilestoreCsiDriverConfig_ != null) {
       output.writeMessage(14, getGcpFilestoreCsiDriverConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -825,7 +640,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               14, getGcpFilestoreCsiDriverConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -879,7 +694,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getGcpFilestoreCsiDriverConfig().equals(other.getGcpFilestoreCsiDriverConfig()))
         return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -926,7 +741,7 @@ public int hashCode() {
       hash = (37 * hash) + GCP_FILESTORE_CSI_DRIVER_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getGcpFilestoreCsiDriverConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1055,17 +870,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.AddonsConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1272,7 +1080,7 @@ public Builder mergeFrom(com.google.container.v1.AddonsConfig other) {
       if (other.hasGcpFilestoreCsiDriverConfig()) {
         mergeGcpFilestoreCsiDriverConfig(other.getGcpFilestoreCsiDriverConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1287,17 +1095,93 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.AddonsConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getHttpLoadBalancingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(
+                    getHorizontalPodAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(
+                    getKubernetesDashboardFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(
+                    getNetworkPolicyConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 58:
+              {
+                input.readMessage(getCloudRunConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 58
+            case 66:
+              {
+                input.readMessage(getDnsCacheConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 66
+            case 82:
+              {
+                input.readMessage(
+                    getConfigConnectorConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 82
+            case 90:
+              {
+                input.readMessage(
+                    getGcePersistentDiskCsiDriverConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 90
+            case 114:
+              {
+                input.readMessage(
+                    getGcpFilestoreCsiDriverConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 114
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.AddonsConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1725,7 +1609,7 @@ public Builder clearHorizontalPodAutoscaling() {
      * 
      *
      * @deprecated google.container.v1.AddonsConfig.kubernetes_dashboard is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1005
+     *     google/container/v1/cluster_service.proto;l=1009
      * @return Whether the kubernetesDashboard field is set.
      */
     @java.lang.Deprecated
@@ -1747,7 +1631,7 @@ public boolean hasKubernetesDashboard() {
      * 
      *
      * @deprecated google.container.v1.AddonsConfig.kubernetes_dashboard is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1005
+     *     google/container/v1/cluster_service.proto;l=1009
      * @return The kubernetesDashboard.
      */
     @java.lang.Deprecated
@@ -3172,7 +3056,18 @@ public AddonsConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AddonsConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AddonsConfigOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AddonsConfigOrBuilder.java
index bd4aaa69..db9f5782 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AddonsConfigOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AddonsConfigOrBuilder.java
@@ -117,7 +117,7 @@ public interface AddonsConfigOrBuilder
    * 
    *
    * @deprecated google.container.v1.AddonsConfig.kubernetes_dashboard is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1005
+   *     google/container/v1/cluster_service.proto;l=1009
    * @return Whether the kubernetesDashboard field is set.
    */
   @java.lang.Deprecated
@@ -137,7 +137,7 @@ public interface AddonsConfigOrBuilder
    * 
    *
    * @deprecated google.container.v1.AddonsConfig.kubernetes_dashboard is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1005
+   *     google/container/v1/cluster_service.proto;l=1009
    * @return The kubernetesDashboard.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AdvancedMachineFeatures.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AdvancedMachineFeatures.java
index 4139c376..56c11e6f 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AdvancedMachineFeatures.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AdvancedMachineFeatures.java
@@ -50,52 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AdvancedMachineFeatures(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              bitField0_ |= 0x00000001;
-              threadsPerCore_ = input.readInt64();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_AdvancedMachineFeatures_descriptor;
@@ -166,7 +120,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeInt64(1, threadsPerCore_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -178,7 +132,7 @@ public int getSerializedSize() {
     if (((bitField0_ & 0x00000001) != 0)) {
       size += com.google.protobuf.CodedOutputStream.computeInt64Size(1, threadsPerCore_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -198,7 +152,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasThreadsPerCore()) {
       if (getThreadsPerCore() != other.getThreadsPerCore()) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -213,7 +167,7 @@ public int hashCode() {
       hash = (37 * hash) + THREADS_PER_CORE_FIELD_NUMBER;
       hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getThreadsPerCore());
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -342,17 +296,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.AdvancedMachineFeatures.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -447,7 +394,7 @@ public Builder mergeFrom(com.google.container.v1.AdvancedMachineFeatures other)
       if (other.hasThreadsPerCore()) {
         setThreadsPerCore(other.getThreadsPerCore());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -462,17 +409,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.AdvancedMachineFeatures parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                threadsPerCore_ = input.readInt64();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.AdvancedMachineFeatures) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -585,7 +552,18 @@ public AdvancedMachineFeatures parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AdvancedMachineFeatures(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AuthenticatorGroupsConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AuthenticatorGroupsConfig.java
index f04ab4b0..09860cbd 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AuthenticatorGroupsConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AuthenticatorGroupsConfig.java
@@ -52,57 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AuthenticatorGroupsConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              securityGroup_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_AuthenticatorGroupsConfig_descriptor;
@@ -208,7 +157,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(securityGroup_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, securityGroup_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -223,7 +172,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(securityGroup_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, securityGroup_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -241,7 +190,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getEnabled() != other.getEnabled()) return false;
     if (!getSecurityGroup().equals(other.getSecurityGroup())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -256,7 +205,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
     hash = (37 * hash) + SECURITY_GROUP_FIELD_NUMBER;
     hash = (53 * hash) + getSecurityGroup().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -385,17 +334,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.AuthenticatorGroupsConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -491,7 +433,7 @@ public Builder mergeFrom(com.google.container.v1.AuthenticatorGroupsConfig other
         securityGroup_ = other.securityGroup_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -506,18 +448,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.AuthenticatorGroupsConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                securityGroup_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.AuthenticatorGroupsConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -719,7 +686,18 @@ public AuthenticatorGroupsConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AuthenticatorGroupsConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoUpgradeOptions.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoUpgradeOptions.java
index 642cb9a4..a5356f5e 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoUpgradeOptions.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoUpgradeOptions.java
@@ -54,59 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AutoUpgradeOptions(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              autoUpgradeStartTime_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              description_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_AutoUpgradeOptions_descriptor;
@@ -246,7 +193,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, description_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -261,7 +208,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, description_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -279,7 +226,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getAutoUpgradeStartTime().equals(other.getAutoUpgradeStartTime())) return false;
     if (!getDescription().equals(other.getDescription())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -294,7 +241,7 @@ public int hashCode() {
     hash = (53 * hash) + getAutoUpgradeStartTime().hashCode();
     hash = (37 * hash) + DESCRIPTION_FIELD_NUMBER;
     hash = (53 * hash) + getDescription().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -424,17 +371,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.AutoUpgradeOptions.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -530,7 +470,7 @@ public Builder mergeFrom(com.google.container.v1.AutoUpgradeOptions other) {
         description_ = other.description_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -545,17 +485,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.AutoUpgradeOptions parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                autoUpgradeStartTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                description_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.AutoUpgradeOptions) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -818,7 +784,18 @@ public AutoUpgradeOptions parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AutoUpgradeOptions(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Autopilot.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Autopilot.java
index 1cce4ded..c8271000 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Autopilot.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Autopilot.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private Autopilot(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_Autopilot_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -172,7 +128,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.Autopilot other = (com.google.container.v1.Autopilot) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -185,7 +141,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -313,17 +269,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.Autopilot.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -410,7 +359,7 @@ public Builder mergeFrom(com.google.container.v1.Autopilot other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -425,17 +374,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.Autopilot parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.Autopilot) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -523,7 +492,18 @@ public Autopilot parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new Autopilot(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoprovisioningNodePoolDefaults.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoprovisioningNodePoolDefaults.java
index 7c922e6d..782101d0 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoprovisioningNodePoolDefaults.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoprovisioningNodePoolDefaults.java
@@ -59,147 +59,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AutoprovisioningNodePoolDefaults(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                oauthScopes_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              oauthScopes_.add(s);
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              serviceAccount_ = s;
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1.NodePool.UpgradeSettings.Builder subBuilder = null;
-              if (upgradeSettings_ != null) {
-                subBuilder = upgradeSettings_.toBuilder();
-              }
-              upgradeSettings_ =
-                  input.readMessage(
-                      com.google.container.v1.NodePool.UpgradeSettings.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(upgradeSettings_);
-                upgradeSettings_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1.NodeManagement.Builder subBuilder = null;
-              if (management_ != null) {
-                subBuilder = management_.toBuilder();
-              }
-              management_ =
-                  input.readMessage(
-                      com.google.container.v1.NodeManagement.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(management_);
-                management_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              minCpuPlatform_ = s;
-              break;
-            }
-          case 48:
-            {
-              diskSizeGb_ = input.readInt32();
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              diskType_ = s;
-              break;
-            }
-          case 66:
-            {
-              com.google.container.v1.ShieldedInstanceConfig.Builder subBuilder = null;
-              if (shieldedInstanceConfig_ != null) {
-                subBuilder = shieldedInstanceConfig_.toBuilder();
-              }
-              shieldedInstanceConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.ShieldedInstanceConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(shieldedInstanceConfig_);
-                shieldedInstanceConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              bootDiskKmsKey_ = s;
-              break;
-            }
-          case 82:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              imageType_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        oauthScopes_ = oauthScopes_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_AutoprovisioningNodePoolDefaults_descriptor;
@@ -433,7 +292,7 @@ public com.google.container.v1.NodeManagementOrBuilder getManagementOrBuilder()
    * minCpuPlatform: Intel Haswell or
    * minCpuPlatform: Intel Sandy Bridge. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * This field is deprecated, min_cpu_platform should be specified using
    * https://cloud.google.com/requested-min-cpu-platform label selector on the
    * pod.
@@ -444,7 +303,7 @@ public com.google.container.v1.NodeManagementOrBuilder getManagementOrBuilder()
    * string min_cpu_platform = 5 [deprecated = true];
    *
    * @deprecated google.container.v1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-   *     deprecated. See google/container/v1/cluster_service.proto;l=3313
+   *     deprecated. See google/container/v1/cluster_service.proto;l=3326
    * @return The minCpuPlatform.
    */
   @java.lang.Override
@@ -470,7 +329,7 @@ public java.lang.String getMinCpuPlatform() {
    * minCpuPlatform: Intel Haswell or
    * minCpuPlatform: Intel Sandy Bridge. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * This field is deprecated, min_cpu_platform should be specified using
    * https://cloud.google.com/requested-min-cpu-platform label selector on the
    * pod.
@@ -481,7 +340,7 @@ public java.lang.String getMinCpuPlatform() {
    * string min_cpu_platform = 5 [deprecated = true];
    *
    * @deprecated google.container.v1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-   *     deprecated. See google/container/v1/cluster_service.proto;l=3313
+   *     deprecated. See google/container/v1/cluster_service.proto;l=3326
    * @return The bytes for minCpuPlatform.
    */
   @java.lang.Override
@@ -772,7 +631,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageType_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 10, imageType_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -817,7 +676,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageType_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(10, imageType_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -852,7 +711,7 @@ public boolean equals(final java.lang.Object obj) {
     }
     if (!getBootDiskKmsKey().equals(other.getBootDiskKmsKey())) return false;
     if (!getImageType().equals(other.getImageType())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -891,7 +750,7 @@ public int hashCode() {
     hash = (53 * hash) + getBootDiskKmsKey().hashCode();
     hash = (37 * hash) + IMAGE_TYPE_FIELD_NUMBER;
     hash = (53 * hash) + getImageType().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1022,17 +881,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.AutoprovisioningNodePoolDefaults.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1216,7 +1068,7 @@ public Builder mergeFrom(com.google.container.v1.AutoprovisioningNodePoolDefault
         imageType_ = other.imageType_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1231,18 +1083,93 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.AutoprovisioningNodePoolDefaults parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureOauthScopesIsMutable();
+                oauthScopes_.add(s);
+                break;
+              } // case 10
+            case 18:
+              {
+                serviceAccount_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(getUpgradeSettingsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getManagementFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                minCpuPlatform_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 48:
+              {
+                diskSizeGb_ = input.readInt32();
+
+                break;
+              } // case 48
+            case 58:
+              {
+                diskType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                input.readMessage(
+                    getShieldedInstanceConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 66
+            case 74:
+              {
+                bootDiskKmsKey_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 82:
+              {
+                imageType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 82
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.AutoprovisioningNodePoolDefaults) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1904,7 +1831,7 @@ public com.google.container.v1.NodeManagementOrBuilder getManagementOrBuilder()
      * minCpuPlatform: Intel Haswell or
      * minCpuPlatform: Intel Sandy Bridge. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * This field is deprecated, min_cpu_platform should be specified using
      * https://cloud.google.com/requested-min-cpu-platform label selector on the
      * pod.
@@ -1915,7 +1842,7 @@ public com.google.container.v1.NodeManagementOrBuilder getManagementOrBuilder()
      * string min_cpu_platform = 5 [deprecated = true];
      *
      * @deprecated google.container.v1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-     *     deprecated. See google/container/v1/cluster_service.proto;l=3313
+     *     deprecated. See google/container/v1/cluster_service.proto;l=3326
      * @return The minCpuPlatform.
      */
     @java.lang.Deprecated
@@ -1940,7 +1867,7 @@ public java.lang.String getMinCpuPlatform() {
      * minCpuPlatform: Intel Haswell or
      * minCpuPlatform: Intel Sandy Bridge. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * This field is deprecated, min_cpu_platform should be specified using
      * https://cloud.google.com/requested-min-cpu-platform label selector on the
      * pod.
@@ -1951,7 +1878,7 @@ public java.lang.String getMinCpuPlatform() {
      * string min_cpu_platform = 5 [deprecated = true];
      *
      * @deprecated google.container.v1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-     *     deprecated. See google/container/v1/cluster_service.proto;l=3313
+     *     deprecated. See google/container/v1/cluster_service.proto;l=3326
      * @return The bytes for minCpuPlatform.
      */
     @java.lang.Deprecated
@@ -1976,7 +1903,7 @@ public com.google.protobuf.ByteString getMinCpuPlatformBytes() {
      * minCpuPlatform: Intel Haswell or
      * minCpuPlatform: Intel Sandy Bridge. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * This field is deprecated, min_cpu_platform should be specified using
      * https://cloud.google.com/requested-min-cpu-platform label selector on the
      * pod.
@@ -1987,7 +1914,7 @@ public com.google.protobuf.ByteString getMinCpuPlatformBytes() {
      * string min_cpu_platform = 5 [deprecated = true];
      *
      * @deprecated google.container.v1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-     *     deprecated. See google/container/v1/cluster_service.proto;l=3313
+     *     deprecated. See google/container/v1/cluster_service.proto;l=3326
      * @param value The minCpuPlatform to set.
      * @return This builder for chaining.
      */
@@ -2011,7 +1938,7 @@ public Builder setMinCpuPlatform(java.lang.String value) {
      * minCpuPlatform: Intel Haswell or
      * minCpuPlatform: Intel Sandy Bridge. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * This field is deprecated, min_cpu_platform should be specified using
      * https://cloud.google.com/requested-min-cpu-platform label selector on the
      * pod.
@@ -2022,7 +1949,7 @@ public Builder setMinCpuPlatform(java.lang.String value) {
      * string min_cpu_platform = 5 [deprecated = true];
      *
      * @deprecated google.container.v1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-     *     deprecated. See google/container/v1/cluster_service.proto;l=3313
+     *     deprecated. See google/container/v1/cluster_service.proto;l=3326
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2042,7 +1969,7 @@ public Builder clearMinCpuPlatform() {
      * minCpuPlatform: Intel Haswell or
      * minCpuPlatform: Intel Sandy Bridge. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * This field is deprecated, min_cpu_platform should be specified using
      * https://cloud.google.com/requested-min-cpu-platform label selector on the
      * pod.
@@ -2053,7 +1980,7 @@ public Builder clearMinCpuPlatform() {
      * string min_cpu_platform = 5 [deprecated = true];
      *
      * @deprecated google.container.v1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-     *     deprecated. See google/container/v1/cluster_service.proto;l=3313
+     *     deprecated. See google/container/v1/cluster_service.proto;l=3326
      * @param value The bytes for minCpuPlatform to set.
      * @return This builder for chaining.
      */
@@ -2701,7 +2628,18 @@ public AutoprovisioningNodePoolDefaults parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AutoprovisioningNodePoolDefaults(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoprovisioningNodePoolDefaultsOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoprovisioningNodePoolDefaultsOrBuilder.java
index a08fb76d..698ee8e2 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoprovisioningNodePoolDefaultsOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/AutoprovisioningNodePoolDefaultsOrBuilder.java
@@ -179,7 +179,7 @@ public interface AutoprovisioningNodePoolDefaultsOrBuilder
    * minCpuPlatform: Intel Haswell or
    * minCpuPlatform: Intel Sandy Bridge. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * This field is deprecated, min_cpu_platform should be specified using
    * https://cloud.google.com/requested-min-cpu-platform label selector on the
    * pod.
@@ -190,7 +190,7 @@ public interface AutoprovisioningNodePoolDefaultsOrBuilder
    * string min_cpu_platform = 5 [deprecated = true];
    *
    * @deprecated google.container.v1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-   *     deprecated. See google/container/v1/cluster_service.proto;l=3313
+   *     deprecated. See google/container/v1/cluster_service.proto;l=3326
    * @return The minCpuPlatform.
    */
   @java.lang.Deprecated
@@ -205,7 +205,7 @@ public interface AutoprovisioningNodePoolDefaultsOrBuilder
    * minCpuPlatform: Intel Haswell or
    * minCpuPlatform: Intel Sandy Bridge. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * This field is deprecated, min_cpu_platform should be specified using
    * https://cloud.google.com/requested-min-cpu-platform label selector on the
    * pod.
@@ -216,7 +216,7 @@ public interface AutoprovisioningNodePoolDefaultsOrBuilder
    * string min_cpu_platform = 5 [deprecated = true];
    *
    * @deprecated google.container.v1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-   *     deprecated. See google/container/v1/cluster_service.proto;l=3313
+   *     deprecated. See google/container/v1/cluster_service.proto;l=3326
    * @return The bytes for minCpuPlatform.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BinaryAuthorization.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BinaryAuthorization.java
index a7f144ff..d00a59de 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BinaryAuthorization.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BinaryAuthorization.java
@@ -52,57 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private BinaryAuthorization(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              evaluationMode_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_BinaryAuthorization_descriptor;
@@ -293,7 +242,7 @@ private EvaluationMode(int value) {
    * bool enabled = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.BinaryAuthorization.enabled is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1224
+   *     google/container/v1/cluster_service.proto;l=1228
    * @return The enabled.
    */
   @java.lang.Override
@@ -366,7 +315,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
             .getNumber()) {
       output.writeEnum(2, evaluationMode_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -383,7 +332,7 @@ public int getSerializedSize() {
             .getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, evaluationMode_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -401,7 +350,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getEnabled() != other.getEnabled()) return false;
     if (evaluationMode_ != other.evaluationMode_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -416,7 +365,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
     hash = (37 * hash) + EVALUATION_MODE_FIELD_NUMBER;
     hash = (53 * hash) + evaluationMode_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -545,17 +494,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.BinaryAuthorization.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -649,7 +591,7 @@ public Builder mergeFrom(com.google.container.v1.BinaryAuthorization other) {
       if (other.evaluationMode_ != 0) {
         setEvaluationModeValue(other.getEvaluationModeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -664,17 +606,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.BinaryAuthorization parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                evaluationMode_ = input.readEnum();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.BinaryAuthorization) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -691,7 +659,7 @@ public Builder mergeFrom(
      * bool enabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.BinaryAuthorization.enabled is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1224
+     *     google/container/v1/cluster_service.proto;l=1228
      * @return The enabled.
      */
     @java.lang.Override
@@ -711,7 +679,7 @@ public boolean getEnabled() {
      * bool enabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.BinaryAuthorization.enabled is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1224
+     *     google/container/v1/cluster_service.proto;l=1228
      * @param value The enabled to set.
      * @return This builder for chaining.
      */
@@ -734,7 +702,7 @@ public Builder setEnabled(boolean value) {
      * bool enabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.BinaryAuthorization.enabled is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1224
+     *     google/container/v1/cluster_service.proto;l=1228
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -881,7 +849,18 @@ public BinaryAuthorization parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new BinaryAuthorization(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BinaryAuthorizationOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BinaryAuthorizationOrBuilder.java
index 04d7bf95..97b3d4f2 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BinaryAuthorizationOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BinaryAuthorizationOrBuilder.java
@@ -35,7 +35,7 @@ public interface BinaryAuthorizationOrBuilder
    * bool enabled = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.BinaryAuthorization.enabled is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1224
+   *     google/container/v1/cluster_service.proto;l=1228
    * @return The enabled.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BlueGreenSettings.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BlueGreenSettings.java
index 170e67a7..26bd48dd 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BlueGreenSettings.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/BlueGreenSettings.java
@@ -50,84 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private BlueGreenSettings(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.BlueGreenSettings.StandardRolloutPolicy.Builder subBuilder =
-                  null;
-              if (rolloutPolicyCase_ == 1) {
-                subBuilder =
-                    ((com.google.container.v1.BlueGreenSettings.StandardRolloutPolicy)
-                            rolloutPolicy_)
-                        .toBuilder();
-              }
-              rolloutPolicy_ =
-                  input.readMessage(
-                      com.google.container.v1.BlueGreenSettings.StandardRolloutPolicy.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(
-                    (com.google.container.v1.BlueGreenSettings.StandardRolloutPolicy)
-                        rolloutPolicy_);
-                rolloutPolicy_ = subBuilder.buildPartial();
-              }
-              rolloutPolicyCase_ = 1;
-              break;
-            }
-          case 18:
-            {
-              com.google.protobuf.Duration.Builder subBuilder = null;
-              if (((bitField0_ & 0x00000001) != 0)) {
-                subBuilder = nodePoolSoakDuration_.toBuilder();
-              }
-              nodePoolSoakDuration_ =
-                  input.readMessage(com.google.protobuf.Duration.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodePoolSoakDuration_);
-                nodePoolSoakDuration_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000001;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_BlueGreenSettings_descriptor;
@@ -270,73 +192,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private StandardRolloutPolicy(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 13:
-              {
-                updateBatchSize_ = input.readFloat();
-                updateBatchSizeCase_ = 1;
-                break;
-              }
-            case 16:
-              {
-                updateBatchSize_ = input.readInt32();
-                updateBatchSizeCase_ = 2;
-                break;
-              }
-            case 26:
-              {
-                com.google.protobuf.Duration.Builder subBuilder = null;
-                if (((bitField0_ & 0x00000001) != 0)) {
-                  subBuilder = batchSoakDuration_.toBuilder();
-                }
-                batchSoakDuration_ =
-                    input.readMessage(com.google.protobuf.Duration.parser(), extensionRegistry);
-                if (subBuilder != null) {
-                  subBuilder.mergeFrom(batchSoakDuration_);
-                  batchSoakDuration_ = subBuilder.buildPartial();
-                }
-                bitField0_ |= 0x00000001;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_BlueGreenSettings_StandardRolloutPolicy_descriptor;
@@ -545,7 +400,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (((bitField0_ & 0x00000001) != 0)) {
         output.writeMessage(3, getBatchSoakDuration());
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -567,7 +422,7 @@ public int getSerializedSize() {
       if (((bitField0_ & 0x00000001) != 0)) {
         size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getBatchSoakDuration());
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -599,7 +454,7 @@ public boolean equals(final java.lang.Object obj) {
         case 0:
         default:
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -626,7 +481,7 @@ public int hashCode() {
         case 0:
         default:
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -905,7 +760,7 @@ public Builder mergeFrom(
               break;
             }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -920,19 +775,50 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.BlueGreenSettings.StandardRolloutPolicy parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 13:
+                {
+                  updateBatchSize_ = input.readFloat();
+                  updateBatchSizeCase_ = 1;
+                  break;
+                } // case 13
+              case 16:
+                {
+                  updateBatchSize_ = input.readInt32();
+                  updateBatchSizeCase_ = 2;
+                  break;
+                } // case 16
+              case 26:
+                {
+                  input.readMessage(
+                      getBatchSoakDurationFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 26
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1.BlueGreenSettings.StandardRolloutPolicy)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1315,7 +1201,19 @@ public StandardRolloutPolicy parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new StandardRolloutPolicy(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1510,7 +1408,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeMessage(2, getNodePoolSoakDuration());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1528,7 +1426,7 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(2, getNodePoolSoakDuration());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1556,7 +1454,7 @@ public boolean equals(final java.lang.Object obj) {
       case 0:
       default:
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1579,7 +1477,7 @@ public int hashCode() {
       case 0:
       default:
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1726,6 +1624,9 @@ private void maybeForceBuilderInitialization() {
     @java.lang.Override
     public Builder clear() {
       super.clear();
+      if (standardRolloutPolicyBuilder_ != null) {
+        standardRolloutPolicyBuilder_.clear();
+      }
       if (nodePoolSoakDurationBuilder_ == null) {
         nodePoolSoakDuration_ = null;
       } else {
@@ -1843,7 +1744,7 @@ public Builder mergeFrom(com.google.container.v1.BlueGreenSettings other) {
             break;
           }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1858,17 +1759,45 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.BlueGreenSettings parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getStandardRolloutPolicyFieldBuilder().getBuilder(), extensionRegistry);
+                rolloutPolicyCase_ = 1;
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(
+                    getNodePoolSoakDurationFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.BlueGreenSettings) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2352,7 +2281,18 @@ public BlueGreenSettings parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new BlueGreenSettings(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CancelOperationRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CancelOperationRequest.java
index 96e90024..e34499f7 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CancelOperationRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CancelOperationRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CancelOperationRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              operationId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_CancelOperationRequest_descriptor;
@@ -151,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2544
+   *     google/container/v1/cluster_service.proto;l=2557
    * @return The projectId.
    */
   @java.lang.Override
@@ -179,7 +112,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2544
+   *     google/container/v1/cluster_service.proto;l=2557
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -211,7 +144,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2550
+   *     google/container/v1/cluster_service.proto;l=2563
    * @return The zone.
    */
   @java.lang.Override
@@ -240,7 +173,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2550
+   *     google/container/v1/cluster_service.proto;l=2563
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -270,7 +203,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string operation_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.operation_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2554
+   *     google/container/v1/cluster_service.proto;l=2567
    * @return The operationId.
    */
   @java.lang.Override
@@ -297,7 +230,7 @@ public java.lang.String getOperationId() {
    * string operation_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.operation_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2554
+   *     google/container/v1/cluster_service.proto;l=2567
    * @return The bytes for operationId.
    */
   @java.lang.Override
@@ -391,7 +324,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -412,7 +345,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -432,7 +365,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getOperationId().equals(other.getOperationId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -451,7 +384,7 @@ public int hashCode() {
     hash = (53 * hash) + getOperationId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -580,17 +513,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.CancelOperationRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -700,7 +626,7 @@ public Builder mergeFrom(com.google.container.v1.CancelOperationRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -715,17 +641,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.CancelOperationRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                operationId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.CancelOperationRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -742,7 +706,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2544
+     *     google/container/v1/cluster_service.proto;l=2557
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -769,7 +733,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2544
+     *     google/container/v1/cluster_service.proto;l=2557
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -796,7 +760,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2544
+     *     google/container/v1/cluster_service.proto;l=2557
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -822,7 +786,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2544
+     *     google/container/v1/cluster_service.proto;l=2557
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -844,7 +808,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2544
+     *     google/container/v1/cluster_service.proto;l=2557
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -874,7 +838,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2550
+     *     google/container/v1/cluster_service.proto;l=2563
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -902,7 +866,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2550
+     *     google/container/v1/cluster_service.proto;l=2563
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -930,7 +894,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2550
+     *     google/container/v1/cluster_service.proto;l=2563
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -957,7 +921,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2550
+     *     google/container/v1/cluster_service.proto;l=2563
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -980,7 +944,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2550
+     *     google/container/v1/cluster_service.proto;l=2563
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1008,7 +972,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string operation_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.operation_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2554
+     *     google/container/v1/cluster_service.proto;l=2567
      * @return The operationId.
      */
     @java.lang.Deprecated
@@ -1034,7 +998,7 @@ public java.lang.String getOperationId() {
      * string operation_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.operation_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2554
+     *     google/container/v1/cluster_service.proto;l=2567
      * @return The bytes for operationId.
      */
     @java.lang.Deprecated
@@ -1060,7 +1024,7 @@ public com.google.protobuf.ByteString getOperationIdBytes() {
      * string operation_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.operation_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2554
+     *     google/container/v1/cluster_service.proto;l=2567
      * @param value The operationId to set.
      * @return This builder for chaining.
      */
@@ -1085,7 +1049,7 @@ public Builder setOperationId(java.lang.String value) {
      * string operation_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.operation_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2554
+     *     google/container/v1/cluster_service.proto;l=2567
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1106,7 +1070,7 @@ public Builder clearOperationId() {
      * string operation_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CancelOperationRequest.operation_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2554
+     *     google/container/v1/cluster_service.proto;l=2567
      * @param value The bytes for operationId to set.
      * @return This builder for chaining.
      */
@@ -1265,7 +1229,18 @@ public CancelOperationRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CancelOperationRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CancelOperationRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CancelOperationRequestOrBuilder.java
index fd03dabf..cff73595 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CancelOperationRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CancelOperationRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface CancelOperationRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2544
+   *     google/container/v1/cluster_service.proto;l=2557
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface CancelOperationRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2544
+   *     google/container/v1/cluster_service.proto;l=2557
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface CancelOperationRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2550
+   *     google/container/v1/cluster_service.proto;l=2563
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface CancelOperationRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2550
+   *     google/container/v1/cluster_service.proto;l=2563
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface CancelOperationRequestOrBuilder
    * string operation_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.operation_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2554
+   *     google/container/v1/cluster_service.proto;l=2567
    * @return The operationId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface CancelOperationRequestOrBuilder
    * string operation_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CancelOperationRequest.operation_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2554
+   *     google/container/v1/cluster_service.proto;l=2567
    * @return The bytes for operationId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClientCertificateConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClientCertificateConfig.java
index 5762267e..812e0924 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClientCertificateConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClientCertificateConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ClientCertificateConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              issueClientCertificate_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ClientCertificateConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (issueClientCertificate_ != false) {
       output.writeBool(1, issueClientCertificate_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (issueClientCertificate_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, issueClientCertificate_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.ClientCertificateConfig) obj;
 
     if (getIssueClientCertificate() != other.getIssueClientCertificate()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ISSUE_CLIENT_CERTIFICATE_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getIssueClientCertificate());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ClientCertificateConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -414,7 +363,7 @@ public Builder mergeFrom(com.google.container.v1.ClientCertificateConfig other)
       if (other.getIssueClientCertificate() != false) {
         setIssueClientCertificate(other.getIssueClientCertificate());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -429,17 +378,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ClientCertificateConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                issueClientCertificate_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ClientCertificateConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -527,7 +496,18 @@ public ClientCertificateConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ClientCertificateConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CloudRunConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CloudRunConfig.java
index b3a60c66..d29c5c08 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CloudRunConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CloudRunConfig.java
@@ -52,57 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CloudRunConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              loadBalancerType_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_CloudRunConfig_descriptor;
@@ -355,7 +304,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
             .getNumber()) {
       output.writeEnum(3, loadBalancerType_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -372,7 +321,7 @@ public int getSerializedSize() {
             .getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, loadBalancerType_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -389,7 +338,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getDisabled() != other.getDisabled()) return false;
     if (loadBalancerType_ != other.loadBalancerType_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -404,7 +353,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
     hash = (37 * hash) + LOAD_BALANCER_TYPE_FIELD_NUMBER;
     hash = (53 * hash) + loadBalancerType_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -533,17 +482,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.CloudRunConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -637,7 +579,7 @@ public Builder mergeFrom(com.google.container.v1.CloudRunConfig other) {
       if (other.loadBalancerType_ != 0) {
         setLoadBalancerTypeValue(other.getLoadBalancerTypeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -652,17 +594,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.CloudRunConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 24:
+              {
+                loadBalancerType_ = input.readEnum();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.CloudRunConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -844,7 +812,18 @@ public CloudRunConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CloudRunConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Cluster.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Cluster.java
index e5183a6b..e408450d 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Cluster.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Cluster.java
@@ -77,758 +77,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private Cluster(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              description_ = s;
-              break;
-            }
-          case 24:
-            {
-              initialNodeCount_ = input.readInt32();
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1.NodeConfig.Builder subBuilder = null;
-              if (nodeConfig_ != null) {
-                subBuilder = nodeConfig_.toBuilder();
-              }
-              nodeConfig_ =
-                  input.readMessage(com.google.container.v1.NodeConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodeConfig_);
-                nodeConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1.MasterAuth.Builder subBuilder = null;
-              if (masterAuth_ != null) {
-                subBuilder = masterAuth_.toBuilder();
-              }
-              masterAuth_ =
-                  input.readMessage(com.google.container.v1.MasterAuth.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(masterAuth_);
-                masterAuth_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              loggingService_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              monitoringService_ = s;
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              network_ = s;
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterIpv4Cidr_ = s;
-              break;
-            }
-          case 82:
-            {
-              com.google.container.v1.AddonsConfig.Builder subBuilder = null;
-              if (addonsConfig_ != null) {
-                subBuilder = addonsConfig_.toBuilder();
-              }
-              addonsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.AddonsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(addonsConfig_);
-                addonsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 90:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              subnetwork_ = s;
-              break;
-            }
-          case 98:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                nodePools_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              nodePools_.add(
-                  input.readMessage(com.google.container.v1.NodePool.parser(), extensionRegistry));
-              break;
-            }
-          case 106:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                locations_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              locations_.add(s);
-              break;
-            }
-          case 112:
-            {
-              enableKubernetesAlpha_ = input.readBool();
-              break;
-            }
-          case 122:
-            {
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                resourceLabels_ =
-                    com.google.protobuf.MapField.newMapField(
-                        ResourceLabelsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000004;
-              }
-              com.google.protobuf.MapEntry resourceLabels__ =
-                  input.readMessage(
-                      ResourceLabelsDefaultEntryHolder.defaultEntry.getParserForType(),
-                      extensionRegistry);
-              resourceLabels_
-                  .getMutableMap()
-                  .put(resourceLabels__.getKey(), resourceLabels__.getValue());
-              break;
-            }
-          case 130:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              labelFingerprint_ = s;
-              break;
-            }
-          case 146:
-            {
-              com.google.container.v1.LegacyAbac.Builder subBuilder = null;
-              if (legacyAbac_ != null) {
-                subBuilder = legacyAbac_.toBuilder();
-              }
-              legacyAbac_ =
-                  input.readMessage(com.google.container.v1.LegacyAbac.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(legacyAbac_);
-                legacyAbac_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 154:
-            {
-              com.google.container.v1.NetworkPolicy.Builder subBuilder = null;
-              if (networkPolicy_ != null) {
-                subBuilder = networkPolicy_.toBuilder();
-              }
-              networkPolicy_ =
-                  input.readMessage(
-                      com.google.container.v1.NetworkPolicy.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkPolicy_);
-                networkPolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 162:
-            {
-              com.google.container.v1.IPAllocationPolicy.Builder subBuilder = null;
-              if (ipAllocationPolicy_ != null) {
-                subBuilder = ipAllocationPolicy_.toBuilder();
-              }
-              ipAllocationPolicy_ =
-                  input.readMessage(
-                      com.google.container.v1.IPAllocationPolicy.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(ipAllocationPolicy_);
-                ipAllocationPolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 178:
-            {
-              com.google.container.v1.MasterAuthorizedNetworksConfig.Builder subBuilder = null;
-              if (masterAuthorizedNetworksConfig_ != null) {
-                subBuilder = masterAuthorizedNetworksConfig_.toBuilder();
-              }
-              masterAuthorizedNetworksConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.MasterAuthorizedNetworksConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(masterAuthorizedNetworksConfig_);
-                masterAuthorizedNetworksConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 186:
-            {
-              com.google.container.v1.MaintenancePolicy.Builder subBuilder = null;
-              if (maintenancePolicy_ != null) {
-                subBuilder = maintenancePolicy_.toBuilder();
-              }
-              maintenancePolicy_ =
-                  input.readMessage(
-                      com.google.container.v1.MaintenancePolicy.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(maintenancePolicy_);
-                maintenancePolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 194:
-            {
-              com.google.container.v1.BinaryAuthorization.Builder subBuilder = null;
-              if (binaryAuthorization_ != null) {
-                subBuilder = binaryAuthorization_.toBuilder();
-              }
-              binaryAuthorization_ =
-                  input.readMessage(
-                      com.google.container.v1.BinaryAuthorization.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(binaryAuthorization_);
-                binaryAuthorization_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 210:
-            {
-              com.google.container.v1.ClusterAutoscaling.Builder subBuilder = null;
-              if (autoscaling_ != null) {
-                subBuilder = autoscaling_.toBuilder();
-              }
-              autoscaling_ =
-                  input.readMessage(
-                      com.google.container.v1.ClusterAutoscaling.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(autoscaling_);
-                autoscaling_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 218:
-            {
-              com.google.container.v1.NetworkConfig.Builder subBuilder = null;
-              if (networkConfig_ != null) {
-                subBuilder = networkConfig_.toBuilder();
-              }
-              networkConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.NetworkConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkConfig_);
-                networkConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 242:
-            {
-              com.google.container.v1.MaxPodsConstraint.Builder subBuilder = null;
-              if (defaultMaxPodsConstraint_ != null) {
-                subBuilder = defaultMaxPodsConstraint_.toBuilder();
-              }
-              defaultMaxPodsConstraint_ =
-                  input.readMessage(
-                      com.google.container.v1.MaxPodsConstraint.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(defaultMaxPodsConstraint_);
-                defaultMaxPodsConstraint_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 266:
-            {
-              com.google.container.v1.ResourceUsageExportConfig.Builder subBuilder = null;
-              if (resourceUsageExportConfig_ != null) {
-                subBuilder = resourceUsageExportConfig_.toBuilder();
-              }
-              resourceUsageExportConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.ResourceUsageExportConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(resourceUsageExportConfig_);
-                resourceUsageExportConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 274:
-            {
-              com.google.container.v1.AuthenticatorGroupsConfig.Builder subBuilder = null;
-              if (authenticatorGroupsConfig_ != null) {
-                subBuilder = authenticatorGroupsConfig_.toBuilder();
-              }
-              authenticatorGroupsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.AuthenticatorGroupsConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(authenticatorGroupsConfig_);
-                authenticatorGroupsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 298:
-            {
-              com.google.container.v1.PrivateClusterConfig.Builder subBuilder = null;
-              if (privateClusterConfig_ != null) {
-                subBuilder = privateClusterConfig_.toBuilder();
-              }
-              privateClusterConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.PrivateClusterConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(privateClusterConfig_);
-                privateClusterConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 306:
-            {
-              com.google.container.v1.DatabaseEncryption.Builder subBuilder = null;
-              if (databaseEncryption_ != null) {
-                subBuilder = databaseEncryption_.toBuilder();
-              }
-              databaseEncryption_ =
-                  input.readMessage(
-                      com.google.container.v1.DatabaseEncryption.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(databaseEncryption_);
-                databaseEncryption_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 314:
-            {
-              com.google.container.v1.VerticalPodAutoscaling.Builder subBuilder = null;
-              if (verticalPodAutoscaling_ != null) {
-                subBuilder = verticalPodAutoscaling_.toBuilder();
-              }
-              verticalPodAutoscaling_ =
-                  input.readMessage(
-                      com.google.container.v1.VerticalPodAutoscaling.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(verticalPodAutoscaling_);
-                verticalPodAutoscaling_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 322:
-            {
-              com.google.container.v1.ShieldedNodes.Builder subBuilder = null;
-              if (shieldedNodes_ != null) {
-                subBuilder = shieldedNodes_.toBuilder();
-              }
-              shieldedNodes_ =
-                  input.readMessage(
-                      com.google.container.v1.ShieldedNodes.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(shieldedNodes_);
-                shieldedNodes_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 330:
-            {
-              com.google.container.v1.ReleaseChannel.Builder subBuilder = null;
-              if (releaseChannel_ != null) {
-                subBuilder = releaseChannel_.toBuilder();
-              }
-              releaseChannel_ =
-                  input.readMessage(
-                      com.google.container.v1.ReleaseChannel.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(releaseChannel_);
-                releaseChannel_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 346:
-            {
-              com.google.container.v1.WorkloadIdentityConfig.Builder subBuilder = null;
-              if (workloadIdentityConfig_ != null) {
-                subBuilder = workloadIdentityConfig_.toBuilder();
-              }
-              workloadIdentityConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.WorkloadIdentityConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(workloadIdentityConfig_);
-                workloadIdentityConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 394:
-            {
-              com.google.container.v1.NotificationConfig.Builder subBuilder = null;
-              if (notificationConfig_ != null) {
-                subBuilder = notificationConfig_.toBuilder();
-              }
-              notificationConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.NotificationConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(notificationConfig_);
-                notificationConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 402:
-            {
-              com.google.container.v1.ConfidentialNodes.Builder subBuilder = null;
-              if (confidentialNodes_ != null) {
-                subBuilder = confidentialNodes_.toBuilder();
-              }
-              confidentialNodes_ =
-                  input.readMessage(
-                      com.google.container.v1.ConfidentialNodes.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(confidentialNodes_);
-                confidentialNodes_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 434:
-            {
-              com.google.container.v1.IdentityServiceConfig.Builder subBuilder = null;
-              if (identityServiceConfig_ != null) {
-                subBuilder = identityServiceConfig_.toBuilder();
-              }
-              identityServiceConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.IdentityServiceConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(identityServiceConfig_);
-                identityServiceConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 538:
-            {
-              com.google.container.v1.MeshCertificates.Builder subBuilder = null;
-              if (meshCertificates_ != null) {
-                subBuilder = meshCertificates_.toBuilder();
-              }
-              meshCertificates_ =
-                  input.readMessage(
-                      com.google.container.v1.MeshCertificates.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(meshCertificates_);
-                meshCertificates_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 802:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              selfLink_ = s;
-              break;
-            }
-          case 810:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 818:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              endpoint_ = s;
-              break;
-            }
-          case 826:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              initialClusterVersion_ = s;
-              break;
-            }
-          case 834:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              currentMasterVersion_ = s;
-              break;
-            }
-          case 842:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              currentNodeVersion_ = s;
-              break;
-            }
-          case 850:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              createTime_ = s;
-              break;
-            }
-          case 856:
-            {
-              int rawValue = input.readEnum();
-
-              status_ = rawValue;
-              break;
-            }
-          case 866:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              statusMessage_ = s;
-              break;
-            }
-          case 872:
-            {
-              nodeIpv4CidrSize_ = input.readInt32();
-              break;
-            }
-          case 882:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              servicesIpv4Cidr_ = s;
-              break;
-            }
-          case 890:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000008) != 0)) {
-                instanceGroupUrls_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000008;
-              }
-              instanceGroupUrls_.add(s);
-              break;
-            }
-          case 896:
-            {
-              currentNodeCount_ = input.readInt32();
-              break;
-            }
-          case 906:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              expireTime_ = s;
-              break;
-            }
-          case 914:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              location_ = s;
-              break;
-            }
-          case 920:
-            {
-              enableTpu_ = input.readBool();
-              break;
-            }
-          case 930:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              tpuIpv4CidrBlock_ = s;
-              break;
-            }
-          case 946:
-            {
-              if (!((mutable_bitField0_ & 0x00000010) != 0)) {
-                conditions_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000010;
-              }
-              conditions_.add(
-                  input.readMessage(
-                      com.google.container.v1.StatusCondition.parser(), extensionRegistry));
-              break;
-            }
-          case 1026:
-            {
-              com.google.container.v1.Autopilot.Builder subBuilder = null;
-              if (autopilot_ != null) {
-                subBuilder = autopilot_.toBuilder();
-              }
-              autopilot_ =
-                  input.readMessage(com.google.container.v1.Autopilot.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(autopilot_);
-                autopilot_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 1034:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              id_ = s;
-              break;
-            }
-          case 1050:
-            {
-              com.google.container.v1.NodePoolDefaults.Builder subBuilder = null;
-              if (((bitField0_ & 0x00000001) != 0)) {
-                subBuilder = nodePoolDefaults_.toBuilder();
-              }
-              nodePoolDefaults_ =
-                  input.readMessage(
-                      com.google.container.v1.NodePoolDefaults.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodePoolDefaults_);
-                nodePoolDefaults_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000001;
-              break;
-            }
-          case 1058:
-            {
-              com.google.container.v1.LoggingConfig.Builder subBuilder = null;
-              if (loggingConfig_ != null) {
-                subBuilder = loggingConfig_.toBuilder();
-              }
-              loggingConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.LoggingConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(loggingConfig_);
-                loggingConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 1066:
-            {
-              com.google.container.v1.MonitoringConfig.Builder subBuilder = null;
-              if (monitoringConfig_ != null) {
-                subBuilder = monitoringConfig_.toBuilder();
-              }
-              monitoringConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.MonitoringConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(monitoringConfig_);
-                monitoringConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 1090:
-            {
-              com.google.container.v1.NodePoolAutoConfig.Builder subBuilder = null;
-              if (nodePoolAutoConfig_ != null) {
-                subBuilder = nodePoolAutoConfig_.toBuilder();
-              }
-              nodePoolAutoConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.NodePoolAutoConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodePoolAutoConfig_);
-                nodePoolAutoConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        nodePools_ = java.util.Collections.unmodifiableList(nodePools_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        locations_ = locations_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000008) != 0)) {
-        instanceGroupUrls_ = instanceGroupUrls_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000010) != 0)) {
-        conditions_ = java.util.Collections.unmodifiableList(conditions_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_Cluster_descriptor;
@@ -1238,7 +486,7 @@ public com.google.protobuf.ByteString getDescriptionBytes() {
    * int32 initial_node_count = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.initial_node_count is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1404
+   *     google/container/v1/cluster_service.proto;l=1408
    * @return The initialNodeCount.
    */
   @java.lang.Override
@@ -1268,7 +516,7 @@ public int getInitialNodeCount() {
    * .google.container.v1.NodeConfig node_config = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.node_config is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1417
+   *     google/container/v1/cluster_service.proto;l=1421
    * @return Whether the nodeConfig field is set.
    */
   @java.lang.Override
@@ -1295,7 +543,7 @@ public boolean hasNodeConfig() {
    * .google.container.v1.NodeConfig node_config = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.node_config is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1417
+   *     google/container/v1/cluster_service.proto;l=1421
    * @return The nodeConfig.
    */
   @java.lang.Override
@@ -3181,7 +2429,7 @@ public com.google.protobuf.ByteString getSelfLinkBytes() {
    * string zone = 101 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1580
+   *     google/container/v1/cluster_service.proto;l=1584
    * @return The zone.
    */
   @java.lang.Override
@@ -3209,7 +2457,7 @@ public java.lang.String getZone() {
    * string zone = 101 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1580
+   *     google/container/v1/cluster_service.proto;l=1584
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -3417,7 +2665,7 @@ public com.google.protobuf.ByteString getCurrentMasterVersionBytes() {
    * string current_node_version = 105 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.current_node_version is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1613
+   *     google/container/v1/cluster_service.proto;l=1617
    * @return The currentNodeVersion.
    */
   @java.lang.Override
@@ -3447,7 +2695,7 @@ public java.lang.String getCurrentNodeVersion() {
    * string current_node_version = 105 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.current_node_version is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1613
+   *     google/container/v1/cluster_service.proto;l=1617
    * @return The bytes for currentNodeVersion.
    */
   @java.lang.Override
@@ -3565,7 +2813,7 @@ public com.google.container.v1.Cluster.Status getStatus() {
    * string status_message = 108 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1625
+   *     google/container/v1/cluster_service.proto;l=1629
    * @return The statusMessage.
    */
   @java.lang.Override
@@ -3593,7 +2841,7 @@ public java.lang.String getStatusMessage() {
    * string status_message = 108 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1625
+   *     google/container/v1/cluster_service.proto;l=1629
    * @return The bytes for statusMessage.
    */
   @java.lang.Override
@@ -3700,7 +2948,7 @@ public com.google.protobuf.ByteString getServicesIpv4CidrBytes() {
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1641
+   *     google/container/v1/cluster_service.proto;l=1645
    * @return A list containing the instanceGroupUrls.
    */
   @java.lang.Deprecated
@@ -3717,7 +2965,7 @@ public com.google.protobuf.ProtocolStringList getInstanceGroupUrlsList() {
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1641
+   *     google/container/v1/cluster_service.proto;l=1645
    * @return The count of instanceGroupUrls.
    */
   @java.lang.Deprecated
@@ -3734,7 +2982,7 @@ public int getInstanceGroupUrlsCount() {
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1641
+   *     google/container/v1/cluster_service.proto;l=1645
    * @param index The index of the element to return.
    * @return The instanceGroupUrls at the given index.
    */
@@ -3752,7 +3000,7 @@ public java.lang.String getInstanceGroupUrls(int index) {
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1641
+   *     google/container/v1/cluster_service.proto;l=1645
    * @param index The index of the value to return.
    * @return The bytes of the instanceGroupUrls at the given index.
    */
@@ -3774,7 +3022,7 @@ public com.google.protobuf.ByteString getInstanceGroupUrlsBytes(int index) {
    * int32 current_node_count = 112 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.current_node_count is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1645
+   *     google/container/v1/cluster_service.proto;l=1649
    * @return The currentNodeCount.
    */
   @java.lang.Override
@@ -4522,7 +3770,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (nodePoolAutoConfig_ != null) {
       output.writeMessage(136, getNodePoolAutoConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -4745,7 +3993,7 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(136, getNodePoolAutoConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -4912,7 +4160,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasNodePoolAutoConfig()) {
       if (!getNodePoolAutoConfig().equals(other.getNodePoolAutoConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -5113,7 +4361,7 @@ public int hashCode() {
       hash = (37 * hash) + NODE_POOL_AUTO_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getNodePoolAutoConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -5316,10 +4564,11 @@ public Builder clear() {
 
       if (nodePoolsBuilder_ == null) {
         nodePools_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        nodePools_ = null;
         nodePoolsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       locations_ = com.google.protobuf.LazyStringArrayList.EMPTY;
       bitField0_ = (bitField0_ & ~0x00000002);
       enableKubernetesAlpha_ = false;
@@ -5489,10 +4738,11 @@ public Builder clear() {
 
       if (conditionsBuilder_ == null) {
         conditions_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000010);
       } else {
+        conditions_ = null;
         conditionsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000010);
       if (autopilotBuilder_ == null) {
         autopilot_ = null;
       } else {
@@ -6072,7 +5322,7 @@ public Builder mergeFrom(com.google.container.v1.Cluster other) {
       if (other.hasNodePoolAutoConfig()) {
         mergeNodePoolAutoConfig(other.getNodePoolAutoConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -6087,17 +5337,436 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.Cluster parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                description_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                initialNodeCount_ = input.readInt32();
+
+                break;
+              } // case 24
+            case 34:
+              {
+                input.readMessage(getNodeConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                input.readMessage(getMasterAuthFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 50:
+              {
+                loggingService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 58:
+              {
+                monitoringService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                network_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 74:
+              {
+                clusterIpv4Cidr_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 82:
+              {
+                input.readMessage(getAddonsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 82
+            case 90:
+              {
+                subnetwork_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 90
+            case 98:
+              {
+                com.google.container.v1.NodePool m =
+                    input.readMessage(com.google.container.v1.NodePool.parser(), extensionRegistry);
+                if (nodePoolsBuilder_ == null) {
+                  ensureNodePoolsIsMutable();
+                  nodePools_.add(m);
+                } else {
+                  nodePoolsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 98
+            case 106:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureLocationsIsMutable();
+                locations_.add(s);
+                break;
+              } // case 106
+            case 112:
+              {
+                enableKubernetesAlpha_ = input.readBool();
+
+                break;
+              } // case 112
+            case 122:
+              {
+                com.google.protobuf.MapEntry resourceLabels__ =
+                    input.readMessage(
+                        ResourceLabelsDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableResourceLabels()
+                    .getMutableMap()
+                    .put(resourceLabels__.getKey(), resourceLabels__.getValue());
+                break;
+              } // case 122
+            case 130:
+              {
+                labelFingerprint_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 130
+            case 146:
+              {
+                input.readMessage(getLegacyAbacFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 146
+            case 154:
+              {
+                input.readMessage(getNetworkPolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 154
+            case 162:
+              {
+                input.readMessage(
+                    getIpAllocationPolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 162
+            case 178:
+              {
+                input.readMessage(
+                    getMasterAuthorizedNetworksConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 178
+            case 186:
+              {
+                input.readMessage(
+                    getMaintenancePolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 186
+            case 194:
+              {
+                input.readMessage(
+                    getBinaryAuthorizationFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 194
+            case 210:
+              {
+                input.readMessage(getAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 210
+            case 218:
+              {
+                input.readMessage(getNetworkConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 218
+            case 242:
+              {
+                input.readMessage(
+                    getDefaultMaxPodsConstraintFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 242
+            case 266:
+              {
+                input.readMessage(
+                    getResourceUsageExportConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 266
+            case 274:
+              {
+                input.readMessage(
+                    getAuthenticatorGroupsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 274
+            case 298:
+              {
+                input.readMessage(
+                    getPrivateClusterConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 298
+            case 306:
+              {
+                input.readMessage(
+                    getDatabaseEncryptionFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 306
+            case 314:
+              {
+                input.readMessage(
+                    getVerticalPodAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 314
+            case 322:
+              {
+                input.readMessage(getShieldedNodesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 322
+            case 330:
+              {
+                input.readMessage(getReleaseChannelFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 330
+            case 346:
+              {
+                input.readMessage(
+                    getWorkloadIdentityConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 346
+            case 394:
+              {
+                input.readMessage(
+                    getNotificationConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 394
+            case 402:
+              {
+                input.readMessage(
+                    getConfidentialNodesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 402
+            case 434:
+              {
+                input.readMessage(
+                    getIdentityServiceConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 434
+            case 538:
+              {
+                input.readMessage(
+                    getMeshCertificatesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 538
+            case 802:
+              {
+                selfLink_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 802
+            case 810:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 810
+            case 818:
+              {
+                endpoint_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 818
+            case 826:
+              {
+                initialClusterVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 826
+            case 834:
+              {
+                currentMasterVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 834
+            case 842:
+              {
+                currentNodeVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 842
+            case 850:
+              {
+                createTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 850
+            case 856:
+              {
+                status_ = input.readEnum();
+
+                break;
+              } // case 856
+            case 866:
+              {
+                statusMessage_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 866
+            case 872:
+              {
+                nodeIpv4CidrSize_ = input.readInt32();
+
+                break;
+              } // case 872
+            case 882:
+              {
+                servicesIpv4Cidr_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 882
+            case 890:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureInstanceGroupUrlsIsMutable();
+                instanceGroupUrls_.add(s);
+                break;
+              } // case 890
+            case 896:
+              {
+                currentNodeCount_ = input.readInt32();
+
+                break;
+              } // case 896
+            case 906:
+              {
+                expireTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 906
+            case 914:
+              {
+                location_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 914
+            case 920:
+              {
+                enableTpu_ = input.readBool();
+
+                break;
+              } // case 920
+            case 930:
+              {
+                tpuIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 930
+            case 946:
+              {
+                com.google.container.v1.StatusCondition m =
+                    input.readMessage(
+                        com.google.container.v1.StatusCondition.parser(), extensionRegistry);
+                if (conditionsBuilder_ == null) {
+                  ensureConditionsIsMutable();
+                  conditions_.add(m);
+                } else {
+                  conditionsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 946
+            case 1026:
+              {
+                input.readMessage(getAutopilotFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 1026
+            case 1034:
+              {
+                id_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 1034
+            case 1050:
+              {
+                input.readMessage(
+                    getNodePoolDefaultsFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000020;
+                break;
+              } // case 1050
+            case 1058:
+              {
+                input.readMessage(getLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 1058
+            case 1066:
+              {
+                input.readMessage(
+                    getMonitoringConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 1066
+            case 1090:
+              {
+                input.readMessage(
+                    getNodePoolAutoConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 1090
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.Cluster) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -6359,7 +6028,7 @@ public Builder setDescriptionBytes(com.google.protobuf.ByteString value) {
      * int32 initial_node_count = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.initial_node_count is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1404
+     *     google/container/v1/cluster_service.proto;l=1408
      * @return The initialNodeCount.
      */
     @java.lang.Override
@@ -6385,7 +6054,7 @@ public int getInitialNodeCount() {
      * int32 initial_node_count = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.initial_node_count is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1404
+     *     google/container/v1/cluster_service.proto;l=1408
      * @param value The initialNodeCount to set.
      * @return This builder for chaining.
      */
@@ -6414,7 +6083,7 @@ public Builder setInitialNodeCount(int value) {
      * int32 initial_node_count = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.initial_node_count is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1404
+     *     google/container/v1/cluster_service.proto;l=1408
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -6450,7 +6119,7 @@ public Builder clearInitialNodeCount() {
      * .google.container.v1.NodeConfig node_config = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.node_config is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1417
+     *     google/container/v1/cluster_service.proto;l=1421
      * @return Whether the nodeConfig field is set.
      */
     @java.lang.Deprecated
@@ -6476,7 +6145,7 @@ public boolean hasNodeConfig() {
      * .google.container.v1.NodeConfig node_config = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.node_config is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1417
+     *     google/container/v1/cluster_service.proto;l=1421
      * @return The nodeConfig.
      */
     @java.lang.Deprecated
@@ -12852,7 +12521,7 @@ public Builder setSelfLinkBytes(com.google.protobuf.ByteString value) {
      * string zone = 101 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1580
+     *     google/container/v1/cluster_service.proto;l=1584
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -12879,7 +12548,7 @@ public java.lang.String getZone() {
      * string zone = 101 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1580
+     *     google/container/v1/cluster_service.proto;l=1584
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -12906,7 +12575,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 101 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1580
+     *     google/container/v1/cluster_service.proto;l=1584
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -12932,7 +12601,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 101 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1580
+     *     google/container/v1/cluster_service.proto;l=1584
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -12954,7 +12623,7 @@ public Builder clearZone() {
      * string zone = 101 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1580
+     *     google/container/v1/cluster_service.proto;l=1584
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -13373,7 +13042,7 @@ public Builder setCurrentMasterVersionBytes(com.google.protobuf.ByteString value
      * string current_node_version = 105 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.current_node_version is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1613
+     *     google/container/v1/cluster_service.proto;l=1617
      * @return The currentNodeVersion.
      */
     @java.lang.Deprecated
@@ -13402,7 +13071,7 @@ public java.lang.String getCurrentNodeVersion() {
      * string current_node_version = 105 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.current_node_version is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1613
+     *     google/container/v1/cluster_service.proto;l=1617
      * @return The bytes for currentNodeVersion.
      */
     @java.lang.Deprecated
@@ -13431,7 +13100,7 @@ public com.google.protobuf.ByteString getCurrentNodeVersionBytes() {
      * string current_node_version = 105 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.current_node_version is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1613
+     *     google/container/v1/cluster_service.proto;l=1617
      * @param value The currentNodeVersion to set.
      * @return This builder for chaining.
      */
@@ -13459,7 +13128,7 @@ public Builder setCurrentNodeVersion(java.lang.String value) {
      * string current_node_version = 105 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.current_node_version is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1613
+     *     google/container/v1/cluster_service.proto;l=1617
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -13483,7 +13152,7 @@ public Builder clearCurrentNodeVersion() {
      * string current_node_version = 105 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.current_node_version is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1613
+     *     google/container/v1/cluster_service.proto;l=1617
      * @param value The bytes for currentNodeVersion to set.
      * @return This builder for chaining.
      */
@@ -13714,7 +13383,7 @@ public Builder clearStatus() {
      * string status_message = 108 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1625
+     *     google/container/v1/cluster_service.proto;l=1629
      * @return The statusMessage.
      */
     @java.lang.Deprecated
@@ -13741,7 +13410,7 @@ public java.lang.String getStatusMessage() {
      * string status_message = 108 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1625
+     *     google/container/v1/cluster_service.proto;l=1629
      * @return The bytes for statusMessage.
      */
     @java.lang.Deprecated
@@ -13768,7 +13437,7 @@ public com.google.protobuf.ByteString getStatusMessageBytes() {
      * string status_message = 108 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1625
+     *     google/container/v1/cluster_service.proto;l=1629
      * @param value The statusMessage to set.
      * @return This builder for chaining.
      */
@@ -13794,7 +13463,7 @@ public Builder setStatusMessage(java.lang.String value) {
      * string status_message = 108 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1625
+     *     google/container/v1/cluster_service.proto;l=1629
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -13816,7 +13485,7 @@ public Builder clearStatusMessage() {
      * string status_message = 108 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1625
+     *     google/container/v1/cluster_service.proto;l=1629
      * @param value The bytes for statusMessage to set.
      * @return This builder for chaining.
      */
@@ -14038,7 +13707,7 @@ private void ensureInstanceGroupUrlsIsMutable() {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1641
+     *     google/container/v1/cluster_service.proto;l=1645
      * @return A list containing the instanceGroupUrls.
      */
     @java.lang.Deprecated
@@ -14055,7 +13724,7 @@ public com.google.protobuf.ProtocolStringList getInstanceGroupUrlsList() {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1641
+     *     google/container/v1/cluster_service.proto;l=1645
      * @return The count of instanceGroupUrls.
      */
     @java.lang.Deprecated
@@ -14072,7 +13741,7 @@ public int getInstanceGroupUrlsCount() {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1641
+     *     google/container/v1/cluster_service.proto;l=1645
      * @param index The index of the element to return.
      * @return The instanceGroupUrls at the given index.
      */
@@ -14090,7 +13759,7 @@ public java.lang.String getInstanceGroupUrls(int index) {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1641
+     *     google/container/v1/cluster_service.proto;l=1645
      * @param index The index of the value to return.
      * @return The bytes of the instanceGroupUrls at the given index.
      */
@@ -14108,7 +13777,7 @@ public com.google.protobuf.ByteString getInstanceGroupUrlsBytes(int index) {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1641
+     *     google/container/v1/cluster_service.proto;l=1645
      * @param index The index to set the value at.
      * @param value The instanceGroupUrls to set.
      * @return This builder for chaining.
@@ -14133,7 +13802,7 @@ public Builder setInstanceGroupUrls(int index, java.lang.String value) {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1641
+     *     google/container/v1/cluster_service.proto;l=1645
      * @param value The instanceGroupUrls to add.
      * @return This builder for chaining.
      */
@@ -14157,7 +13826,7 @@ public Builder addInstanceGroupUrls(java.lang.String value) {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1641
+     *     google/container/v1/cluster_service.proto;l=1645
      * @param values The instanceGroupUrls to add.
      * @return This builder for chaining.
      */
@@ -14178,7 +13847,7 @@ public Builder addAllInstanceGroupUrls(java.lang.Iterable valu
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1641
+     *     google/container/v1/cluster_service.proto;l=1645
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -14198,7 +13867,7 @@ public Builder clearInstanceGroupUrls() {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1641
+     *     google/container/v1/cluster_service.proto;l=1645
      * @param value The bytes of the instanceGroupUrls to add.
      * @return This builder for chaining.
      */
@@ -14226,7 +13895,7 @@ public Builder addInstanceGroupUrlsBytes(com.google.protobuf.ByteString value) {
      * int32 current_node_count = 112 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.current_node_count is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1645
+     *     google/container/v1/cluster_service.proto;l=1649
      * @return The currentNodeCount.
      */
     @java.lang.Override
@@ -14245,7 +13914,7 @@ public int getCurrentNodeCount() {
      * int32 current_node_count = 112 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.current_node_count is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1645
+     *     google/container/v1/cluster_service.proto;l=1649
      * @param value The currentNodeCount to set.
      * @return This builder for chaining.
      */
@@ -14267,7 +13936,7 @@ public Builder setCurrentNodeCount(int value) {
      * int32 current_node_count = 112 [deprecated = true];
      *
      * @deprecated google.container.v1.Cluster.current_node_count is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1645
+     *     google/container/v1/cluster_service.proto;l=1649
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -16117,7 +15786,18 @@ public Cluster parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new Cluster(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterAutoscaling.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterAutoscaling.java
index 5ba57cf6..e3ebb0dd 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterAutoscaling.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterAutoscaling.java
@@ -57,102 +57,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ClusterAutoscaling(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enableNodeAutoprovisioning_ = input.readBool();
-              break;
-            }
-          case 18:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                resourceLimits_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              resourceLimits_.add(
-                  input.readMessage(
-                      com.google.container.v1.ResourceLimit.parser(), extensionRegistry));
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              autoscalingProfile_ = rawValue;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1.AutoprovisioningNodePoolDefaults.Builder subBuilder = null;
-              if (autoprovisioningNodePoolDefaults_ != null) {
-                subBuilder = autoprovisioningNodePoolDefaults_.toBuilder();
-              }
-              autoprovisioningNodePoolDefaults_ =
-                  input.readMessage(
-                      com.google.container.v1.AutoprovisioningNodePoolDefaults.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(autoprovisioningNodePoolDefaults_);
-                autoprovisioningNodePoolDefaults_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                autoprovisioningLocations_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              autoprovisioningLocations_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        resourceLimits_ = java.util.Collections.unmodifiableList(resourceLimits_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        autoprovisioningLocations_ = autoprovisioningLocations_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ClusterAutoscaling_descriptor;
@@ -621,7 +525,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       com.google.protobuf.GeneratedMessageV3.writeString(
           output, 5, autoprovisioningLocations_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -654,7 +558,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getAutoprovisioningLocationsList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -681,7 +585,7 @@ public boolean equals(final java.lang.Object obj) {
     }
     if (!getAutoprovisioningLocationsList().equals(other.getAutoprovisioningLocationsList()))
       return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -708,7 +612,7 @@ public int hashCode() {
       hash = (37 * hash) + AUTOPROVISIONING_LOCATIONS_FIELD_NUMBER;
       hash = (53 * hash) + getAutoprovisioningLocationsList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -840,19 +744,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ClusterAutoscaling.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getResourceLimitsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -862,10 +757,11 @@ public Builder clear() {
 
       if (resourceLimitsBuilder_ == null) {
         resourceLimits_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        resourceLimits_ = null;
         resourceLimitsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       autoscalingProfile_ = 0;
 
       if (autoprovisioningNodePoolDefaultsBuilder_ == null) {
@@ -1020,7 +916,7 @@ public Builder mergeFrom(com.google.container.v1.ClusterAutoscaling other) {
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1035,17 +931,71 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ClusterAutoscaling parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enableNodeAutoprovisioning_ = input.readBool();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                com.google.container.v1.ResourceLimit m =
+                    input.readMessage(
+                        com.google.container.v1.ResourceLimit.parser(), extensionRegistry);
+                if (resourceLimitsBuilder_ == null) {
+                  ensureResourceLimitsIsMutable();
+                  resourceLimits_.add(m);
+                } else {
+                  resourceLimitsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 18
+            case 24:
+              {
+                autoscalingProfile_ = input.readEnum();
+
+                break;
+              } // case 24
+            case 34:
+              {
+                input.readMessage(
+                    getAutoprovisioningNodePoolDefaultsFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureAutoprovisioningLocationsIsMutable();
+                autoprovisioningLocations_.add(s);
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ClusterAutoscaling) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2015,7 +1965,18 @@ public ClusterAutoscaling parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ClusterAutoscaling(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterOrBuilder.java
index a6ad5536..f0f7e47e 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterOrBuilder.java
@@ -101,7 +101,7 @@ public interface ClusterOrBuilder
    * int32 initial_node_count = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.initial_node_count is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1404
+   *     google/container/v1/cluster_service.proto;l=1408
    * @return The initialNodeCount.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface ClusterOrBuilder
    * .google.container.v1.NodeConfig node_config = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.node_config is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1417
+   *     google/container/v1/cluster_service.proto;l=1421
    * @return Whether the nodeConfig field is set.
    */
   @java.lang.Deprecated
@@ -150,7 +150,7 @@ public interface ClusterOrBuilder
    * .google.container.v1.NodeConfig node_config = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.node_config is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1417
+   *     google/container/v1/cluster_service.proto;l=1421
    * @return The nodeConfig.
    */
   @java.lang.Deprecated
@@ -1481,7 +1481,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string zone = 101 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1580
+   *     google/container/v1/cluster_service.proto;l=1584
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -1498,7 +1498,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string zone = 101 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1580
+   *     google/container/v1/cluster_service.proto;l=1584
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -1621,7 +1621,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string current_node_version = 105 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.current_node_version is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1613
+   *     google/container/v1/cluster_service.proto;l=1617
    * @return The currentNodeVersion.
    */
   @java.lang.Deprecated
@@ -1640,7 +1640,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string current_node_version = 105 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.current_node_version is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1613
+   *     google/container/v1/cluster_service.proto;l=1617
    * @return The bytes for currentNodeVersion.
    */
   @java.lang.Deprecated
@@ -1710,7 +1710,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string status_message = 108 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1625
+   *     google/container/v1/cluster_service.proto;l=1629
    * @return The statusMessage.
    */
   @java.lang.Deprecated
@@ -1727,7 +1727,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string status_message = 108 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1625
+   *     google/container/v1/cluster_service.proto;l=1629
    * @return The bytes for statusMessage.
    */
   @java.lang.Deprecated
@@ -1792,7 +1792,7 @@ java.lang.String getResourceLabelsOrDefault(
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1641
+   *     google/container/v1/cluster_service.proto;l=1645
    * @return A list containing the instanceGroupUrls.
    */
   @java.lang.Deprecated
@@ -1807,7 +1807,7 @@ java.lang.String getResourceLabelsOrDefault(
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1641
+   *     google/container/v1/cluster_service.proto;l=1645
    * @return The count of instanceGroupUrls.
    */
   @java.lang.Deprecated
@@ -1822,7 +1822,7 @@ java.lang.String getResourceLabelsOrDefault(
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1641
+   *     google/container/v1/cluster_service.proto;l=1645
    * @param index The index of the element to return.
    * @return The instanceGroupUrls at the given index.
    */
@@ -1838,7 +1838,7 @@ java.lang.String getResourceLabelsOrDefault(
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1641
+   *     google/container/v1/cluster_service.proto;l=1645
    * @param index The index of the value to return.
    * @return The bytes of the instanceGroupUrls at the given index.
    */
@@ -1856,7 +1856,7 @@ java.lang.String getResourceLabelsOrDefault(
    * int32 current_node_count = 112 [deprecated = true];
    *
    * @deprecated google.container.v1.Cluster.current_node_count is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1645
+   *     google/container/v1/cluster_service.proto;l=1649
    * @return The currentNodeCount.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterServiceProto.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterServiceProto.java
index 9d26b069..bf57f996 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterServiceProto.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterServiceProto.java
@@ -611,6 +611,14 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_container_v1_MonitoringConfig_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_container_v1_MonitoringConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_container_v1_NodePoolLoggingConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_container_v1_NodePoolLoggingConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_container_v1_LoggingVariantConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_container_v1_LoggingVariantConfig_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_container_v1_MonitoringComponentConfig_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
@@ -644,7 +652,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "anager_policy\030\001 \001(\t\0221\n\rcpu_cfs_quota\030\002 \001"
           + "(\0132\032.google.protobuf.BoolValue\022\034\n\024cpu_cf"
           + "s_quota_period\030\003 \001(\t\022\026\n\016pod_pids_limit\030\004"
-          + " \001(\003\"\213\n\n\nNodeConfig\022\024\n\014machine_type\030\001 \001("
+          + " \001(\003\"\317\n\n\nNodeConfig\022\024\n\014machine_type\030\001 \001("
           + "\t\022\024\n\014disk_size_gb\030\002 \001(\005\022\024\n\014oauth_scopes\030"
           + "\003 \003(\t\022\027\n\017service_account\030\t \001(\t\022?\n\010metada"
           + "ta\030\004 \003(\0132-.google.container.v1.NodeConfi"
@@ -674,952 +682,966 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "c\030\035 \001(\0132\037.google.container.v1.VirtualNIC"
           + "\022\014\n\004spot\030  \001(\010\022B\n\022confidential_nodes\030# \001"
           + "(\0132&.google.container.v1.ConfidentialNod"
-          + "es\032/\n\rMetadataEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005valu"
-          + "e\030\002 \001(\t:\0028\001\032-\n\013LabelsEntry\022\013\n\003key\030\001 \001(\t\022"
-          + "\r\n\005value\030\002 \001(\t:\0028\001\"M\n\027AdvancedMachineFea"
-          + "tures\022\035\n\020threads_per_core\030\001 \001(\003H\000\210\001\001B\023\n\021"
-          + "_threads_per_core\"\302\003\n\021NodeNetworkConfig\022"
-          + "\035\n\020create_pod_range\030\004 \001(\010B\003\340A\004\022\021\n\tpod_ra"
-          + "nge\030\005 \001(\t\022\033\n\023pod_ipv4_cidr_block\030\006 \001(\t\022h"
-          + "\n\032network_performance_config\030\013 \001(\0132?.goo"
-          + "gle.container.v1.NodeNetworkConfig.Netwo"
-          + "rkPerformanceConfigH\000\210\001\001\032\324\001\n\030NetworkPerf"
-          + "ormanceConfig\022n\n\033total_egress_bandwidth_"
-          + "tier\030\001 \001(\0162D.google.container.v1.NodeNet"
-          + "workConfig.NetworkPerformanceConfig.Tier"
-          + "H\000\210\001\001\"(\n\004Tier\022\024\n\020TIER_UNSPECIFIED\020\000\022\n\n\006T"
-          + "IER_1\020\001B\036\n\034_total_egress_bandwidth_tierB"
-          + "\035\n\033_network_performance_config\"Y\n\026Shield"
-          + "edInstanceConfig\022\032\n\022enable_secure_boot\030\001"
-          + " \001(\010\022#\n\033enable_integrity_monitoring\030\002 \001("
-          + "\010\"k\n\rSandboxConfig\0225\n\004type\030\002 \001(\0162\'.googl"
-          + "e.container.v1.SandboxConfig.Type\"#\n\004Typ"
-          + "e\022\017\n\013UNSPECIFIED\020\000\022\n\n\006GVISOR\020\001\"\035\n\nGcfsCo"
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+          + "DELETED\020\002\022\026\n\022GCE_QUOTA_EXCEEDED\020\003\022\023\n\017SET"
+          + "_BY_OPERATOR\020\004\022\027\n\023CLOUD_KMS_KEY_ERROR\020\007\022"
+          + "\017\n\013CA_EXPIRING\020\t\"\334\003\n\rNetworkConfig\022\017\n\007ne"
+          + "twork\030\001 \001(\t\022\022\n\nsubnetwork\030\002 \001(\t\022$\n\034enabl"
+          + "e_intra_node_visibility\030\005 \001(\010\022C\n\023default"
+          + "_snat_status\030\007 \001(\0132&.google.container.v1"
+          + ".DefaultSnatStatus\022\037\n\027enable_l4ilb_subse"
+          + "tting\030\n \001(\010\022@\n\021datapath_provider\030\013 \001(\0162%"
+          + ".google.container.v1.DatapathProvider\022P\n"
+          + "\032private_ipv6_google_access\030\014 \001(\0162,.goog"
+          + "le.container.v1.PrivateIPv6GoogleAccess\022"
+          + "2\n\ndns_config\030\r \001(\0132\036.google.container.v"
+          + "1.DNSConfig\022R\n\033service_external_ips_conf"
+          + "ig\030\017 \001(\0132-.google.container.v1.ServiceEx"
+          + "ternalIPsConfig\"+\n\030ServiceExternalIPsCon"
+          + "fig\022\017\n\007enabled\030\001 \001(\010\"(\n\026GetOpenIDConfigR"
+          + "equest\022\016\n\006parent\030\001 \001(\t\"\334\001\n\027GetOpenIDConf"
+          + "igResponse\022\016\n\006issuer\030\001 \001(\t\022\020\n\010jwks_uri\030\002"
+          + " \001(\t\022 \n\030response_types_supported\030\003 \003(\t\022\037"
+          + "\n\027subject_types_supported\030\004 \003(\t\022-\n%id_to"
+          + "ken_signing_alg_values_supported\030\005 \003(\t\022\030"
+          + "\n\020claims_supported\030\006 \003(\t\022\023\n\013grant_types\030"
+          + "\007 \003(\t\"\'\n\025GetJSONWebKeysRequest\022\016\n\006parent"
+          + "\030\001 \001(\t\"r\n\003Jwk\022\013\n\003kty\030\001 \001(\t\022\013\n\003alg\030\002 \001(\t\022"
+          + "\013\n\003use\030\003 \001(\t\022\013\n\003kid\030\004 \001(\t\022\t\n\001n\030\005 \001(\t\022\t\n\001"
+          + "e\030\006 \001(\t\022\t\n\001x\030\007 \001(\t\022\t\n\001y\030\010 \001(\t\022\013\n\003crv\030\t \001"
+          + "(\t\"@\n\026GetJSONWebKeysResponse\022&\n\004keys\030\001 \003"
+          + "(\0132\030.google.container.v1.Jwk\"\216\001\n\016Release"
+          + "Channel\022<\n\007channel\030\001 \001(\0162+.google.contai"
+          + "ner.v1.ReleaseChannel.Channel\">\n\007Channel"
+          + "\022\017\n\013UNSPECIFIED\020\000\022\t\n\005RAPID\020\001\022\013\n\007REGULAR\020"
+          + "\002\022\n\n\006STABLE\020\003\",\n\031IntraNodeVisibilityConf"
+          + "ig\022\017\n\007enabled\030\001 \001(\010\"&\n\023ILBSubsettingConf"
+          + "ig\022\017\n\007enabled\030\001 \001(\010\"\252\002\n\tDNSConfig\022<\n\013clu"
+          + "ster_dns\030\001 \001(\0162\'.google.container.v1.DNS"
+          + "Config.Provider\022B\n\021cluster_dns_scope\030\002 \001"
+          + "(\0162\'.google.container.v1.DNSConfig.DNSSc"
+          + "ope\022\032\n\022cluster_dns_domain\030\003 \001(\t\"I\n\010Provi"
+          + "der\022\030\n\024PROVIDER_UNSPECIFIED\020\000\022\024\n\020PLATFOR"
+          + "M_DEFAULT\020\001\022\r\n\tCLOUD_DNS\020\002\"4\n\010DNSScope\022\031"
+          + "\n\025DNS_SCOPE_UNSPECIFIED\020\000\022\r\n\tVPC_SCOPE\020\002"
+          + "\".\n\021MaxPodsConstraint\022\031\n\021max_pods_per_no"
+          + "de\030\001 \001(\003\"/\n\026WorkloadIdentityConfig\022\025\n\rwo"
+          + "rkload_pool\030\002 \001(\t\"(\n\025IdentityServiceConf"
+          + "ig\022\017\n\007enabled\030\001 \001(\010\"K\n\020MeshCertificates\022"
+          + "7\n\023enable_certificates\030\001 \001(\0132\032.google.pr"
+          + "otobuf.BoolValue\"\230\001\n\022DatabaseEncryption\022"
+          + "<\n\005state\030\002 \001(\0162-.google.container.v1.Dat"
+          + "abaseEncryption.State\022\020\n\010key_name\030\001 \001(\t\""
+          + "2\n\005State\022\013\n\007UNKNOWN\020\000\022\r\n\tENCRYPTED\020\001\022\r\n\t"
+          + "DECRYPTED\020\002\"e\n\034ListUsableSubnetworksRequ"
+          + "est\022\016\n\006parent\030\001 \001(\t\022\016\n\006filter\030\002 \001(\t\022\021\n\tp"
+          + "age_size\030\003 \001(\005\022\022\n\npage_token\030\004 \001(\t\"t\n\035Li"
+          + "stUsableSubnetworksResponse\022:\n\013subnetwor"
+          + "ks\030\001 \003(\0132%.google.container.v1.UsableSub"
+          + "network\022\027\n\017next_page_token\030\002 \001(\t\"\200\002\n\036Usa"
+          + "bleSubnetworkSecondaryRange\022\022\n\nrange_nam"
+          + "e\030\001 \001(\t\022\025\n\rip_cidr_range\030\002 \001(\t\022J\n\006status"
+          + "\030\003 \001(\0162:.google.container.v1.UsableSubne"
+          + "tworkSecondaryRange.Status\"g\n\006Status\022\013\n\007"
+          + "UNKNOWN\020\000\022\n\n\006UNUSED\020\001\022\022\n\016IN_USE_SERVICE\020"
+          + "\002\022\030\n\024IN_USE_SHAREABLE_POD\020\003\022\026\n\022IN_USE_MA"
+          + "NAGED_POD\020\004\"\270\001\n\020UsableSubnetwork\022\022\n\nsubn"
+          + "etwork\030\001 \001(\t\022\017\n\007network\030\002 \001(\t\022\025\n\rip_cidr"
+          + "_range\030\003 \001(\t\022P\n\023secondary_ip_ranges\030\004 \003("
+          + "\01323.google.container.v1.UsableSubnetwork"
+          + "SecondaryRange\022\026\n\016status_message\030\005 \001(\t\"\355"
+          + "\002\n\031ResourceUsageExportConfig\022`\n\024bigquery"
+          + "_destination\030\001 \001(\0132B.google.container.v1"
+          + ".ResourceUsageExportConfig.BigQueryDesti"
+          + "nation\022&\n\036enable_network_egress_metering"
+          + "\030\002 \001(\010\022m\n\033consumption_metering_config\030\003 "
+          + "\001(\0132H.google.container.v1.ResourceUsageE"
+          + "xportConfig.ConsumptionMeteringConfig\032)\n"
+          + "\023BigQueryDestination\022\022\n\ndataset_id\030\001 \001(\t"
+          + "\032,\n\031ConsumptionMeteringConfig\022\017\n\007enabled"
+          + "\030\001 \001(\010\")\n\026VerticalPodAutoscaling\022\017\n\007enab"
+          + "led\030\001 \001(\010\"%\n\021DefaultSnatStatus\022\020\n\010disabl"
+          + "ed\030\001 \001(\010\" \n\rShieldedNodes\022\017\n\007enabled\030\001 \001"
+          + "(\010\"\035\n\nVirtualNIC\022\017\n\007enabled\030\001 \001(\010\"\250\003\n\022No"
+          + "tificationConfig\022>\n\006pubsub\030\001 \001(\0132..googl"
+          + "e.container.v1.NotificationConfig.PubSub"
+          + "\032\212\001\n\006PubSub\022\017\n\007enabled\030\001 \001(\010\022/\n\005topic\030\002 "
+          + "\001(\tB \372A\035\n\033pubsub.googleapis.com/Topic\022>\n"
+          + "\006filter\030\003 \001(\0132..google.container.v1.Noti"
+          + "ficationConfig.Filter\032O\n\006Filter\022E\n\nevent"
+          + "_type\030\001 \003(\01621.google.container.v1.Notifi"
+          + "cationConfig.EventType\"t\n\tEventType\022\032\n\026E"
+          + "VENT_TYPE_UNSPECIFIED\020\000\022\033\n\027UPGRADE_AVAIL"
+          + "ABLE_EVENT\020\001\022\021\n\rUPGRADE_EVENT\020\002\022\033\n\027SECUR"
+          + "ITY_BULLETIN_EVENT\020\003\"$\n\021ConfidentialNode"
+          + "s\022\017\n\007enabled\030\001 \001(\010\"\337\001\n\014UpgradeEvent\022?\n\rr"
+          + "esource_type\030\001 \001(\0162(.google.container.v1"
+          + ".UpgradeResourceType\022\021\n\toperation\030\002 \001(\t\022"
+          + "8\n\024operation_start_time\030\003 \001(\0132\032.google.p"
+          + "rotobuf.Timestamp\022\027\n\017current_version\030\004 \001"
+          + "(\t\022\026\n\016target_version\030\005 \001(\t\022\020\n\010resource\030\006"
+          + " \001(\t\"\271\001\n\025UpgradeAvailableEvent\022\017\n\007versio"
+          + "n\030\001 \001(\t\022?\n\rresource_type\030\002 \001(\0162(.google."
+          + "container.v1.UpgradeResourceType\022<\n\017rele"
+          + "ase_channel\030\003 \001(\0132#.google.container.v1."
+          + "ReleaseChannel\022\020\n\010resource\030\004 \001(\t\"\236\002\n\025Sec"
+          + "urityBulletinEvent\022\036\n\026resource_type_affe"
+          + "cted\030\001 \001(\t\022\023\n\013bulletin_id\030\002 \001(\t\022\017\n\007cve_i"
+          + "ds\030\003 \003(\t\022\020\n\010severity\030\004 \001(\t\022\024\n\014bulletin_u"
+          + "ri\030\005 \001(\t\022\031\n\021brief_description\030\006 \001(\t\022!\n\031a"
+          + "ffected_supported_minors\030\007 \003(\t\022\030\n\020patche"
+          + "d_versions\030\010 \003(\t\022 \n\030suggested_upgrade_ta"
+          + "rget\030\t \001(\t\022\035\n\025manual_steps_required\030\n \001("
+          + "\010\"\034\n\tAutopilot\022\017\n\007enabled\030\001 \001(\010\"V\n\rLoggi"
+          + "ngConfig\022E\n\020component_config\030\001 \001(\0132+.goo"
+          + "gle.container.v1.LoggingComponentConfig\""
+          + "\270\001\n\026LoggingComponentConfig\022P\n\021enable_com"
+          + "ponents\030\001 \003(\01625.google.container.v1.Logg"
+          + "ingComponentConfig.Component\"L\n\tComponen"
+          + "t\022\031\n\025COMPONENT_UNSPECIFIED\020\000\022\025\n\021SYSTEM_C"
+          + "OMPONENTS\020\001\022\r\n\tWORKLOADS\020\002\"\255\001\n\020Monitorin"
+          + "gConfig\022H\n\020component_config\030\001 \001(\0132..goog"
+          + "le.container.v1.MonitoringComponentConfi"
+          + "g\022O\n\031managed_prometheus_config\030\002 \001(\0132,.g"
+          + "oogle.container.v1.ManagedPrometheusConf"
+          + "ig\"Z\n\025NodePoolLoggingConfig\022A\n\016variant_c"
+          + "onfig\030\001 \001(\0132).google.container.v1.Loggin"
+          + "gVariantConfig\"\237\001\n\024LoggingVariantConfig\022"
+          + "B\n\007variant\030\001 \001(\01621.google.container.v1.L"
+          + "oggingVariantConfig.Variant\"C\n\007Variant\022\027"
+          + "\n\023VARIANT_UNSPECIFIED\020\000\022\013\n\007DEFAULT\020\001\022\022\n\016"
+          + "MAX_THROUGHPUT\020\002\"\345\001\n\031MonitoringComponent"
+          + "Config\022S\n\021enable_components\030\001 \003(\01628.goog"
+          + "le.container.v1.MonitoringComponentConfi"
+          + "g.Component\"s\n\tComponent\022\031\n\025COMPONENT_UN"
+          + "SPECIFIED\020\000\022\025\n\021SYSTEM_COMPONENTS\020\001\022\r\n\tAP"
+          + "ISERVER\020\003\022\r\n\tSCHEDULER\020\004\022\026\n\022CONTROLLER_M"
+          + "ANAGER\020\005\"*\n\027ManagedPrometheusConfig\022\017\n\007e"
+          + "nabled\030\001 \001(\010*\306\001\n\027PrivateIPv6GoogleAccess"
+          + "\022*\n&PRIVATE_IPV6_GOOGLE_ACCESS_UNSPECIFI"
+          + "ED\020\000\022\'\n#PRIVATE_IPV6_GOOGLE_ACCESS_DISAB"
+          + "LED\020\001\022(\n$PRIVATE_IPV6_GOOGLE_ACCESS_TO_G"
+          + "OOGLE\020\002\022,\n(PRIVATE_IPV6_GOOGLE_ACCESS_BI"
+          + "DIRECTIONAL\020\003*W\n\023UpgradeResourceType\022%\n!"
+          + "UPGRADE_RESOURCE_TYPE_UNSPECIFIED\020\000\022\n\n\006M"
+          + "ASTER\020\001\022\r\n\tNODE_POOL\020\002*a\n\020DatapathProvid"
+          + "er\022!\n\035DATAPATH_PROVIDER_UNSPECIFIED\020\000\022\023\n"
+          + "\017LEGACY_DATAPATH\020\001\022\025\n\021ADVANCED_DATAPATH\020"
+          + "\002*^\n\026NodePoolUpdateStrategy\022)\n%NODE_POOL"
+          + "_UPDATE_STRATEGY_UNSPECIFIED\020\000\022\016\n\nBLUE_G"
+          + "REEN\020\002\022\t\n\005SURGE\020\0032\303G\n\016ClusterManager\022\350\001\n"
+          + "\014ListClusters\022(.google.container.v1.List"
+          + "ClustersRequest\032).google.container.v1.Li"
+          + "stClustersResponse\"\202\001\202\323\344\223\002a\022,/v1/{parent"
+          + "=projects/*/locations/*}/clustersZ1\022//v1"
+          + "/projects/{project_id}/zones/{zone}/clus"
+          + "ters\332A\017project_id,zone\332A\006parent\022\355\001\n\nGetC"
+          + "luster\022&.google.container.v1.GetClusterR"
+          + "equest\032\034.google.container.v1.Cluster\"\230\001\202"
+          + "\323\344\223\002n\022,/v1/{name=projects/*/locations/*/"
+          + "clusters/*}Z>\022**/"
           + "v1/{name=projects/*/locations/*/clusters"
-          + "/*/nodePools/*}:rollback:\001*Zc\"^/v1/proje"
-          + "cts/{project_id}/zones/{zone}/clusters/{"
-          + "cluster_id}/nodePools/{node_pool_id}:rol"
-          + "lback:\001*\332A\'project_id,zone,cluster_id,no"
-          + "de_pool_id\332A\004name\022\251\002\n\025SetNodePoolManagem"
-          + "ent\0221.google.container.v1.SetNodePoolMan"
-          + "agementRequest\032\036.google.container.v1.Ope"
-          + "ration\"\274\001\202\323\344\223\002\265\001\"F/v1/{name=projects/*/l"
-          + "ocations/*/clusters/*/nodePools/*}:setMa"
-          + "nagement:\001*Zh\"c/v1/projects/{project_id}"
-          + "/zones/{zone}/clusters/{cluster_id}/node"
-          + "Pools/{node_pool_id}/setManagement:\001*\022\361\001"
-          + "\n\tSetLabels\022%.google.container.v1.SetLab"
-          + "elsRequest\032\036.google.container.v1.Operati"
-          + "on\"\234\001\202\323\344\223\002\225\001\">/v1/{name=projects/*/locat"
-          + "ions/*/clusters/*}:setResourceLabels:\001*Z"
-          + "P\"K/v1/projects/{project_id}/zones/{zone"
-          + "}/clusters/{cluster_id}/resourceLabels:\001"
-          + "*\022\245\002\n\rSetLegacyAbac\022).google.container.v"
-          + "1.SetLegacyAbacRequest\032\036.google.containe"
-          + "r.v1.Operation\"\310\001\202\323\344\223\002\215\001\":/v1/{name=proj"
-          + "ects/*/locations/*/clusters/*}:setLegacy"
-          + "Abac:\001*ZL\"G/v1/projects/{project_id}/zon"
-          + "es/{zone}/clusters/{cluster_id}/legacyAb"
-          + "ac:\001*\332A\"project_id,zone,cluster_id,enabl"
-          + "ed\332A\014name,enabled\022\240\002\n\017StartIPRotation\022+."
-          + "google.container.v1.StartIPRotationReque"
-          + "st\032\036.google.container.v1.Operation\"\277\001\202\323\344"
-          + "\223\002\224\001\"
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   *
+   * @return Whether the desiredNodePoolLoggingConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasDesiredNodePoolLoggingConfig() {
+    return desiredNodePoolLoggingConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   *
+   * @return The desiredNodePoolLoggingConfig.
+   */
+  @java.lang.Override
+  public com.google.container.v1.NodePoolLoggingConfig getDesiredNodePoolLoggingConfig() {
+    return desiredNodePoolLoggingConfig_ == null
+        ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+        : desiredNodePoolLoggingConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   */
+  @java.lang.Override
+  public com.google.container.v1.NodePoolLoggingConfigOrBuilder
+      getDesiredNodePoolLoggingConfigOrBuilder() {
+    return getDesiredNodePoolLoggingConfig();
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -2480,7 +2018,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (desiredNodePoolAutoConfigNetworkTags_ != null) {
       output.writeMessage(110, getDesiredNodePoolAutoConfigNetworkTags());
     }
-    unknownFields.writeTo(output);
+    if (desiredNodePoolLoggingConfig_ != null) {
+      output.writeMessage(116, getDesiredNodePoolLoggingConfig());
+    }
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -2643,7 +2184,12 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               110, getDesiredNodePoolAutoConfigNetworkTags());
     }
-    size += unknownFields.getSerializedSize();
+    if (desiredNodePoolLoggingConfig_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              116, getDesiredNodePoolLoggingConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -2791,7 +2337,12 @@ public boolean equals(final java.lang.Object obj) {
       if (!getDesiredNodePoolAutoConfigNetworkTags()
           .equals(other.getDesiredNodePoolAutoConfigNetworkTags())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (hasDesiredNodePoolLoggingConfig() != other.hasDesiredNodePoolLoggingConfig()) return false;
+    if (hasDesiredNodePoolLoggingConfig()) {
+      if (!getDesiredNodePoolLoggingConfig().equals(other.getDesiredNodePoolLoggingConfig()))
+        return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -2922,7 +2473,11 @@ public int hashCode() {
       hash = (37 * hash) + DESIRED_NODE_POOL_AUTO_CONFIG_NETWORK_TAGS_FIELD_NUMBER;
       hash = (53 * hash) + getDesiredNodePoolAutoConfigNetworkTags().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    if (hasDesiredNodePoolLoggingConfig()) {
+      hash = (37 * hash) + DESIRED_NODE_POOL_LOGGING_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getDesiredNodePoolLoggingConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -3052,17 +2607,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ClusterUpdate.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -3236,6 +2784,12 @@ public Builder clear() {
         desiredNodePoolAutoConfigNetworkTags_ = null;
         desiredNodePoolAutoConfigNetworkTagsBuilder_ = null;
       }
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        desiredNodePoolLoggingConfig_ = null;
+      } else {
+        desiredNodePoolLoggingConfig_ = null;
+        desiredNodePoolLoggingConfigBuilder_ = null;
+      }
       return this;
     }
 
@@ -3404,6 +2958,11 @@ public com.google.container.v1.ClusterUpdate buildPartial() {
         result.desiredNodePoolAutoConfigNetworkTags_ =
             desiredNodePoolAutoConfigNetworkTagsBuilder_.build();
       }
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        result.desiredNodePoolLoggingConfig_ = desiredNodePoolLoggingConfig_;
+      } else {
+        result.desiredNodePoolLoggingConfig_ = desiredNodePoolLoggingConfigBuilder_.build();
+      }
       onBuilt();
       return result;
     }
@@ -3569,7 +3128,10 @@ public Builder mergeFrom(com.google.container.v1.ClusterUpdate other) {
       if (other.hasDesiredNodePoolAutoConfigNetworkTags()) {
         mergeDesiredNodePoolAutoConfigNetworkTags(other.getDesiredNodePoolAutoConfigNetworkTags());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      if (other.hasDesiredNodePoolLoggingConfig()) {
+        mergeDesiredNodePoolLoggingConfig(other.getDesiredNodePoolLoggingConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -3584,17 +3146,274 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ClusterUpdate parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 34:
+              {
+                desiredNodeVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                desiredMonitoringService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                input.readMessage(
+                    getDesiredAddonsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 50
+            case 58:
+              {
+                desiredNodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                desiredImageType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 74:
+              {
+                input.readMessage(
+                    getDesiredNodePoolAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 74
+            case 82:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureDesiredLocationsIsMutable();
+                desiredLocations_.add(s);
+                break;
+              } // case 82
+            case 98:
+              {
+                input.readMessage(
+                    getDesiredMasterAuthorizedNetworksConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 98
+            case 122:
+              {
+                input.readMessage(
+                    getDesiredClusterAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 122
+            case 130:
+              {
+                input.readMessage(
+                    getDesiredBinaryAuthorizationFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 130
+            case 154:
+              {
+                desiredLoggingService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 154
+            case 170:
+              {
+                input.readMessage(
+                    getDesiredResourceUsageExportConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 170
+            case 178:
+              {
+                input.readMessage(
+                    getDesiredVerticalPodAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 178
+            case 202:
+              {
+                input.readMessage(
+                    getDesiredPrivateClusterConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 202
+            case 210:
+              {
+                input.readMessage(
+                    getDesiredIntraNodeVisibilityConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 210
+            case 226:
+              {
+                input.readMessage(
+                    getDesiredDefaultSnatStatusFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 226
+            case 250:
+              {
+                input.readMessage(
+                    getDesiredReleaseChannelFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 250
+            case 314:
+              {
+                input.readMessage(
+                    getDesiredL4IlbSubsettingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 314
+            case 370:
+              {
+                input.readMessage(
+                    getDesiredDatabaseEncryptionFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 370
+            case 378:
+              {
+                input.readMessage(
+                    getDesiredWorkloadIdentityConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 378
+            case 386:
+              {
+                input.readMessage(
+                    getDesiredShieldedNodesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 386
+            case 400:
+              {
+                desiredDatapathProvider_ = input.readEnum();
+
+                break;
+              } // case 400
+            case 408:
+              {
+                desiredPrivateIpv6GoogleAccess_ = input.readEnum();
+
+                break;
+              } // case 408
+            case 426:
+              {
+                input.readMessage(
+                    getDesiredDnsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 426
+            case 442:
+              {
+                input.readMessage(
+                    getDesiredNotificationConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 442
+            case 482:
+              {
+                input.readMessage(
+                    getDesiredServiceExternalIpsConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 482
+            case 506:
+              {
+                input.readMessage(
+                    getDesiredAuthenticatorGroupsConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 506
+            case 514:
+              {
+                input.readMessage(
+                    getDesiredLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 514
+            case 522:
+              {
+                input.readMessage(
+                    getDesiredMonitoringConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 522
+            case 530:
+              {
+                input.readMessage(
+                    getDesiredIdentityServiceConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 530
+            case 538:
+              {
+                input.readMessage(
+                    getDesiredMeshCertificatesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 538
+            case 802:
+              {
+                desiredMasterVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 802
+            case 874:
+              {
+                input.readMessage(
+                    getDesiredGcfsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 874
+            case 882:
+              {
+                input.readMessage(
+                    getDesiredNodePoolAutoConfigNetworkTagsFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 882
+            case 930:
+              {
+                input.readMessage(
+                    getDesiredNodePoolLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 930
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ClusterUpdate) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -9703,6 +9522,206 @@ public Builder clearDesiredNodePoolAutoConfigNetworkTags() {
       return desiredNodePoolAutoConfigNetworkTagsBuilder_;
     }
 
+    private com.google.container.v1.NodePoolLoggingConfig desiredNodePoolLoggingConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1.NodePoolLoggingConfig,
+            com.google.container.v1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1.NodePoolLoggingConfigOrBuilder>
+        desiredNodePoolLoggingConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     *
+     * @return Whether the desiredNodePoolLoggingConfig field is set.
+     */
+    public boolean hasDesiredNodePoolLoggingConfig() {
+      return desiredNodePoolLoggingConfigBuilder_ != null || desiredNodePoolLoggingConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     *
+     * @return The desiredNodePoolLoggingConfig.
+     */
+    public com.google.container.v1.NodePoolLoggingConfig getDesiredNodePoolLoggingConfig() {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        return desiredNodePoolLoggingConfig_ == null
+            ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+            : desiredNodePoolLoggingConfig_;
+      } else {
+        return desiredNodePoolLoggingConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public Builder setDesiredNodePoolLoggingConfig(
+        com.google.container.v1.NodePoolLoggingConfig value) {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        desiredNodePoolLoggingConfig_ = value;
+        onChanged();
+      } else {
+        desiredNodePoolLoggingConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public Builder setDesiredNodePoolLoggingConfig(
+        com.google.container.v1.NodePoolLoggingConfig.Builder builderForValue) {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        desiredNodePoolLoggingConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        desiredNodePoolLoggingConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public Builder mergeDesiredNodePoolLoggingConfig(
+        com.google.container.v1.NodePoolLoggingConfig value) {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        if (desiredNodePoolLoggingConfig_ != null) {
+          desiredNodePoolLoggingConfig_ =
+              com.google.container.v1.NodePoolLoggingConfig.newBuilder(
+                      desiredNodePoolLoggingConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          desiredNodePoolLoggingConfig_ = value;
+        }
+        onChanged();
+      } else {
+        desiredNodePoolLoggingConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public Builder clearDesiredNodePoolLoggingConfig() {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        desiredNodePoolLoggingConfig_ = null;
+        onChanged();
+      } else {
+        desiredNodePoolLoggingConfig_ = null;
+        desiredNodePoolLoggingConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public com.google.container.v1.NodePoolLoggingConfig.Builder
+        getDesiredNodePoolLoggingConfigBuilder() {
+
+      onChanged();
+      return getDesiredNodePoolLoggingConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public com.google.container.v1.NodePoolLoggingConfigOrBuilder
+        getDesiredNodePoolLoggingConfigOrBuilder() {
+      if (desiredNodePoolLoggingConfigBuilder_ != null) {
+        return desiredNodePoolLoggingConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return desiredNodePoolLoggingConfig_ == null
+            ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+            : desiredNodePoolLoggingConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1.NodePoolLoggingConfig,
+            com.google.container.v1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1.NodePoolLoggingConfigOrBuilder>
+        getDesiredNodePoolLoggingConfigFieldBuilder() {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        desiredNodePoolLoggingConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.container.v1.NodePoolLoggingConfig,
+                com.google.container.v1.NodePoolLoggingConfig.Builder,
+                com.google.container.v1.NodePoolLoggingConfigOrBuilder>(
+                getDesiredNodePoolLoggingConfig(), getParentForChildren(), isClean());
+        desiredNodePoolLoggingConfig_ = null;
+      }
+      return desiredNodePoolLoggingConfigBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
@@ -9735,7 +9754,18 @@ public ClusterUpdate parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ClusterUpdate(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterUpdateOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterUpdateOrBuilder.java
index 5e8d7b8c..5211afef 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterUpdateOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ClusterUpdateOrBuilder.java
@@ -1283,4 +1283,39 @@ public interface ClusterUpdateOrBuilder
    * .google.container.v1.NetworkTags desired_node_pool_auto_config_network_tags = 110;
    */
   com.google.container.v1.NetworkTagsOrBuilder getDesiredNodePoolAutoConfigNetworkTagsOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   *
+   * @return Whether the desiredNodePoolLoggingConfig field is set.
+   */
+  boolean hasDesiredNodePoolLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   *
+   * @return The desiredNodePoolLoggingConfig.
+   */
+  com.google.container.v1.NodePoolLoggingConfig getDesiredNodePoolLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   */
+  com.google.container.v1.NodePoolLoggingConfigOrBuilder getDesiredNodePoolLoggingConfigOrBuilder();
 }
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteIPRotationRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteIPRotationRequest.java
index ec551816..275ad40b 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteIPRotationRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteIPRotationRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CompleteIPRotationRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_CompleteIPRotationRequest_descriptor;
@@ -151,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3494
+   *     google/container/v1/cluster_service.proto;l=3507
    * @return The projectId.
    */
   @java.lang.Override
@@ -179,7 +112,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3494
+   *     google/container/v1/cluster_service.proto;l=3507
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -211,7 +144,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3500
+   *     google/container/v1/cluster_service.proto;l=3513
    * @return The zone.
    */
   @java.lang.Override
@@ -240,7 +173,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3500
+   *     google/container/v1/cluster_service.proto;l=3513
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -270,7 +203,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3504
+   *     google/container/v1/cluster_service.proto;l=3517
    * @return The clusterId.
    */
   @java.lang.Override
@@ -297,7 +230,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3504
+   *     google/container/v1/cluster_service.proto;l=3517
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -391,7 +324,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -412,7 +345,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -432,7 +365,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -451,7 +384,7 @@ public int hashCode() {
     hash = (53 * hash) + getClusterId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -580,17 +513,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.CompleteIPRotationRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -701,7 +627,7 @@ public Builder mergeFrom(com.google.container.v1.CompleteIPRotationRequest other
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -716,18 +642,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.CompleteIPRotationRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.CompleteIPRotationRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -744,7 +707,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3494
+     *     google/container/v1/cluster_service.proto;l=3507
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -771,7 +734,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3494
+     *     google/container/v1/cluster_service.proto;l=3507
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -798,7 +761,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3494
+     *     google/container/v1/cluster_service.proto;l=3507
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -824,7 +787,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3494
+     *     google/container/v1/cluster_service.proto;l=3507
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -846,7 +809,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3494
+     *     google/container/v1/cluster_service.proto;l=3507
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -876,7 +839,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3500
+     *     google/container/v1/cluster_service.proto;l=3513
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -904,7 +867,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3500
+     *     google/container/v1/cluster_service.proto;l=3513
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -932,7 +895,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3500
+     *     google/container/v1/cluster_service.proto;l=3513
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -959,7 +922,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3500
+     *     google/container/v1/cluster_service.proto;l=3513
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -982,7 +945,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3500
+     *     google/container/v1/cluster_service.proto;l=3513
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1010,7 +973,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3504
+     *     google/container/v1/cluster_service.proto;l=3517
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1036,7 +999,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3504
+     *     google/container/v1/cluster_service.proto;l=3517
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1062,7 +1025,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3504
+     *     google/container/v1/cluster_service.proto;l=3517
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1087,7 +1050,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3504
+     *     google/container/v1/cluster_service.proto;l=3517
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1108,7 +1071,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CompleteIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3504
+     *     google/container/v1/cluster_service.proto;l=3517
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1267,7 +1230,18 @@ public CompleteIPRotationRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CompleteIPRotationRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteIPRotationRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteIPRotationRequestOrBuilder.java
index d6b4bab0..f28ca7e4 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteIPRotationRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteIPRotationRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3494
+   *     google/container/v1/cluster_service.proto;l=3507
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3494
+   *     google/container/v1/cluster_service.proto;l=3507
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3500
+   *     google/container/v1/cluster_service.proto;l=3513
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3500
+   *     google/container/v1/cluster_service.proto;l=3513
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3504
+   *     google/container/v1/cluster_service.proto;l=3517
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CompleteIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3504
+   *     google/container/v1/cluster_service.proto;l=3517
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteNodePoolUpgradeRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteNodePoolUpgradeRequest.java
index 7aaae618..b7214436 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteNodePoolUpgradeRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CompleteNodePoolUpgradeRequest.java
@@ -54,52 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CompleteNodePoolUpgradeRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_CompleteNodePoolUpgradeRequest_descriptor;
@@ -185,7 +139,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -197,7 +151,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -214,7 +168,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.CompleteNodePoolUpgradeRequest) obj;
 
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -227,7 +181,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -358,17 +312,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.CompleteNodePoolUpgradeRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -458,7 +405,7 @@ public Builder mergeFrom(com.google.container.v1.CompleteNodePoolUpgradeRequest
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -473,18 +420,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.CompleteNodePoolUpgradeRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.CompleteNodePoolUpgradeRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -636,7 +602,18 @@ public CompleteNodePoolUpgradeRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CompleteNodePoolUpgradeRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ConfidentialNodes.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ConfidentialNodes.java
index bef0ac64..6b5eb134 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ConfidentialNodes.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ConfidentialNodes.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ConfidentialNodes(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ConfidentialNodes_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.ConfidentialNodes) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ConfidentialNodes.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1.ConfidentialNodes other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,17 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ConfidentialNodes parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ConfidentialNodes) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +497,18 @@ public ConfidentialNodes parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ConfidentialNodes(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ConfigConnectorConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ConfigConnectorConfig.java
index 3f166481..5165b9df 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ConfigConnectorConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ConfigConnectorConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ConfigConnectorConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ConfigConnectorConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.ConfigConnectorConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ConfigConnectorConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -413,7 +362,7 @@ public Builder mergeFrom(com.google.container.v1.ConfigConnectorConfig other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -428,17 +377,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ConfigConnectorConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ConfigConnectorConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -526,7 +495,18 @@ public ConfigConnectorConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ConfigConnectorConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateClusterRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateClusterRequest.java
index b315bad0..ebae90b9 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateClusterRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateClusterRequest.java
@@ -54,81 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CreateClusterRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1.Cluster.Builder subBuilder = null;
-              if (cluster_ != null) {
-                subBuilder = cluster_.toBuilder();
-              }
-              cluster_ =
-                  input.readMessage(com.google.container.v1.Cluster.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(cluster_);
-                cluster_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_CreateClusterRequest_descriptor;
@@ -158,7 +83,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2055
+   *     google/container/v1/cluster_service.proto;l=2065
    * @return The projectId.
    */
   @java.lang.Override
@@ -186,7 +111,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2055
+   *     google/container/v1/cluster_service.proto;l=2065
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -218,7 +143,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2061
+   *     google/container/v1/cluster_service.proto;l=2071
    * @return The zone.
    */
   @java.lang.Override
@@ -247,7 +172,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2061
+   *     google/container/v1/cluster_service.proto;l=2071
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -393,7 +318,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -414,7 +339,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -437,7 +362,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getCluster().equals(other.getCluster())) return false;
     }
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -458,7 +383,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -587,17 +512,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.CreateClusterRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -714,7 +632,7 @@ public Builder mergeFrom(com.google.container.v1.CreateClusterRequest other) {
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -729,17 +647,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.CreateClusterRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(getClusterFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 42:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.CreateClusterRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -756,7 +712,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2055
+     *     google/container/v1/cluster_service.proto;l=2065
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -783,7 +739,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2055
+     *     google/container/v1/cluster_service.proto;l=2065
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -810,7 +766,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2055
+     *     google/container/v1/cluster_service.proto;l=2065
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -836,7 +792,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2055
+     *     google/container/v1/cluster_service.proto;l=2065
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -858,7 +814,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2055
+     *     google/container/v1/cluster_service.proto;l=2065
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -888,7 +844,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2061
+     *     google/container/v1/cluster_service.proto;l=2071
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -916,7 +872,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2061
+     *     google/container/v1/cluster_service.proto;l=2071
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -944,7 +900,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2061
+     *     google/container/v1/cluster_service.proto;l=2071
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -971,7 +927,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2061
+     *     google/container/v1/cluster_service.proto;l=2071
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -994,7 +950,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2061
+     *     google/container/v1/cluster_service.proto;l=2071
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1350,7 +1306,18 @@ public CreateClusterRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CreateClusterRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateClusterRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateClusterRequestOrBuilder.java
index 7027b1ee..593dc5fe 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateClusterRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateClusterRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface CreateClusterRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2055
+   *     google/container/v1/cluster_service.proto;l=2065
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface CreateClusterRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2055
+   *     google/container/v1/cluster_service.proto;l=2065
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface CreateClusterRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2061
+   *     google/container/v1/cluster_service.proto;l=2071
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface CreateClusterRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2061
+   *     google/container/v1/cluster_service.proto;l=2071
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateNodePoolRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateNodePoolRequest.java
index 6c162a3d..98c2e8d3 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateNodePoolRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateNodePoolRequest.java
@@ -55,88 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CreateNodePoolRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1.NodePool.Builder subBuilder = null;
-              if (nodePool_ != null) {
-                subBuilder = nodePool_.toBuilder();
-              }
-              nodePool_ =
-                  input.readMessage(com.google.container.v1.NodePool.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodePool_);
-                nodePool_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_CreateNodePoolRequest_descriptor;
@@ -166,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2627
+   *     google/container/v1/cluster_service.proto;l=2640
    * @return The projectId.
    */
   @java.lang.Override
@@ -194,7 +112,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2627
+   *     google/container/v1/cluster_service.proto;l=2640
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -226,7 +144,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2633
+   *     google/container/v1/cluster_service.proto;l=2646
    * @return The zone.
    */
   @java.lang.Override
@@ -255,7 +173,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2633
+   *     google/container/v1/cluster_service.proto;l=2646
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -285,7 +203,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2637
+   *     google/container/v1/cluster_service.proto;l=2650
    * @return The clusterId.
    */
   @java.lang.Override
@@ -312,7 +230,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2637
+   *     google/container/v1/cluster_service.proto;l=2650
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -460,7 +378,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -484,7 +402,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -508,7 +426,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getNodePool().equals(other.getNodePool())) return false;
     }
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -531,7 +449,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -660,17 +578,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.CreateNodePoolRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -794,7 +705,7 @@ public Builder mergeFrom(com.google.container.v1.CreateNodePoolRequest other) {
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -809,17 +720,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.CreateNodePoolRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getNodePoolFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 50:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.CreateNodePoolRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -836,7 +791,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2627
+     *     google/container/v1/cluster_service.proto;l=2640
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -863,7 +818,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2627
+     *     google/container/v1/cluster_service.proto;l=2640
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -890,7 +845,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2627
+     *     google/container/v1/cluster_service.proto;l=2640
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -916,7 +871,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2627
+     *     google/container/v1/cluster_service.proto;l=2640
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -938,7 +893,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2627
+     *     google/container/v1/cluster_service.proto;l=2640
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -968,7 +923,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2633
+     *     google/container/v1/cluster_service.proto;l=2646
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -996,7 +951,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2633
+     *     google/container/v1/cluster_service.proto;l=2646
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1024,7 +979,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2633
+     *     google/container/v1/cluster_service.proto;l=2646
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1051,7 +1006,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2633
+     *     google/container/v1/cluster_service.proto;l=2646
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1074,7 +1029,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2633
+     *     google/container/v1/cluster_service.proto;l=2646
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1102,7 +1057,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2637
+     *     google/container/v1/cluster_service.proto;l=2650
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1128,7 +1083,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2637
+     *     google/container/v1/cluster_service.proto;l=2650
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1154,7 +1109,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2637
+     *     google/container/v1/cluster_service.proto;l=2650
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1179,7 +1134,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2637
+     *     google/container/v1/cluster_service.proto;l=2650
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1200,7 +1155,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.CreateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2637
+     *     google/container/v1/cluster_service.proto;l=2650
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1558,7 +1513,18 @@ public CreateNodePoolRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CreateNodePoolRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateNodePoolRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateNodePoolRequestOrBuilder.java
index 299d8e16..ec527029 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateNodePoolRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/CreateNodePoolRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface CreateNodePoolRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2627
+   *     google/container/v1/cluster_service.proto;l=2640
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface CreateNodePoolRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2627
+   *     google/container/v1/cluster_service.proto;l=2640
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface CreateNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2633
+   *     google/container/v1/cluster_service.proto;l=2646
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface CreateNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2633
+   *     google/container/v1/cluster_service.proto;l=2646
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface CreateNodePoolRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2637
+   *     google/container/v1/cluster_service.proto;l=2650
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface CreateNodePoolRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.CreateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2637
+   *     google/container/v1/cluster_service.proto;l=2650
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DNSConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DNSConfig.java
index 781945d3..3a9c3dfb 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DNSConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DNSConfig.java
@@ -54,66 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DNSConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              clusterDns_ = rawValue;
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              clusterDnsScope_ = rawValue;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterDnsDomain_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_DNSConfig_descriptor;
@@ -567,7 +507,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clusterDnsDomain_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, clusterDnsDomain_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -587,7 +527,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clusterDnsDomain_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, clusterDnsDomain_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -605,7 +545,7 @@ public boolean equals(final java.lang.Object obj) {
     if (clusterDns_ != other.clusterDns_) return false;
     if (clusterDnsScope_ != other.clusterDnsScope_) return false;
     if (!getClusterDnsDomain().equals(other.getClusterDnsDomain())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -622,7 +562,7 @@ public int hashCode() {
     hash = (53 * hash) + clusterDnsScope_;
     hash = (37 * hash) + CLUSTER_DNS_DOMAIN_FIELD_NUMBER;
     hash = (53 * hash) + getClusterDnsDomain().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -750,17 +690,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.DNSConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -860,7 +793,7 @@ public Builder mergeFrom(com.google.container.v1.DNSConfig other) {
         clusterDnsDomain_ = other.clusterDnsDomain_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -875,17 +808,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.DNSConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                clusterDns_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                clusterDnsScope_ = input.readEnum();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                clusterDnsDomain_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.DNSConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1209,7 +1174,18 @@ public DNSConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DNSConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DailyMaintenanceWindow.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DailyMaintenanceWindow.java
index d4badfdb..292f1434 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DailyMaintenanceWindow.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DailyMaintenanceWindow.java
@@ -53,59 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DailyMaintenanceWindow(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              startTime_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              duration_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_DailyMaintenanceWindow_descriptor;
@@ -249,7 +196,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(duration_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, duration_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -264,7 +211,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(duration_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, duration_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -282,7 +229,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getStartTime().equals(other.getStartTime())) return false;
     if (!getDuration().equals(other.getDuration())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -297,7 +244,7 @@ public int hashCode() {
     hash = (53 * hash) + getStartTime().hashCode();
     hash = (37 * hash) + DURATION_FIELD_NUMBER;
     hash = (53 * hash) + getDuration().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -426,17 +373,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.DailyMaintenanceWindow.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -532,7 +472,7 @@ public Builder mergeFrom(com.google.container.v1.DailyMaintenanceWindow other) {
         duration_ = other.duration_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -547,17 +487,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.DailyMaintenanceWindow parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 18:
+              {
+                startTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                duration_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.DailyMaintenanceWindow) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -830,7 +796,18 @@ public DailyMaintenanceWindow parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DailyMaintenanceWindow(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DatabaseEncryption.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DatabaseEncryption.java
index 71e0fbeb..2d51a90b 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DatabaseEncryption.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DatabaseEncryption.java
@@ -53,59 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DatabaseEncryption(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              keyName_ = s;
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              state_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_DatabaseEncryption_descriptor;
@@ -387,7 +334,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (state_ != com.google.container.v1.DatabaseEncryption.State.UNKNOWN.getNumber()) {
       output.writeEnum(2, state_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -402,7 +349,7 @@ public int getSerializedSize() {
     if (state_ != com.google.container.v1.DatabaseEncryption.State.UNKNOWN.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, state_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -420,7 +367,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (state_ != other.state_) return false;
     if (!getKeyName().equals(other.getKeyName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -435,7 +382,7 @@ public int hashCode() {
     hash = (53 * hash) + state_;
     hash = (37 * hash) + KEY_NAME_FIELD_NUMBER;
     hash = (53 * hash) + getKeyName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -564,17 +511,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.DatabaseEncryption.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -669,7 +609,7 @@ public Builder mergeFrom(com.google.container.v1.DatabaseEncryption other) {
         keyName_ = other.keyName_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -684,17 +624,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.DatabaseEncryption parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                keyName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                state_ = input.readEnum();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.DatabaseEncryption) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -934,7 +900,18 @@ public DatabaseEncryption parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DatabaseEncryption(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DefaultSnatStatus.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DefaultSnatStatus.java
index c6bc72e7..b04914d7 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DefaultSnatStatus.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DefaultSnatStatus.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DefaultSnatStatus(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_DefaultSnatStatus_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (disabled_ != false) {
       output.writeBool(1, disabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (disabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, disabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.DefaultSnatStatus) obj;
 
     if (getDisabled() != other.getDisabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DISABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.DefaultSnatStatus.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1.DefaultSnatStatus other) {
       if (other.getDisabled() != false) {
         setDisabled(other.getDisabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,17 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.DefaultSnatStatus parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.DefaultSnatStatus) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +497,18 @@ public DefaultSnatStatus parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DefaultSnatStatus(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteClusterRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteClusterRequest.java
index f54ba276..a28c335e 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteClusterRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteClusterRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DeleteClusterRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_DeleteClusterRequest_descriptor;
@@ -151,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2451
+   *     google/container/v1/cluster_service.proto;l=2464
    * @return The projectId.
    */
   @java.lang.Override
@@ -179,7 +112,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2451
+   *     google/container/v1/cluster_service.proto;l=2464
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -211,7 +144,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2457
+   *     google/container/v1/cluster_service.proto;l=2470
    * @return The zone.
    */
   @java.lang.Override
@@ -240,7 +173,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2457
+   *     google/container/v1/cluster_service.proto;l=2470
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -270,7 +203,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2461
+   *     google/container/v1/cluster_service.proto;l=2474
    * @return The clusterId.
    */
   @java.lang.Override
@@ -297,7 +230,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2461
+   *     google/container/v1/cluster_service.proto;l=2474
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -391,7 +324,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -412,7 +345,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -432,7 +365,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -451,7 +384,7 @@ public int hashCode() {
     hash = (53 * hash) + getClusterId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -580,17 +513,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.DeleteClusterRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -700,7 +626,7 @@ public Builder mergeFrom(com.google.container.v1.DeleteClusterRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -715,17 +641,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.DeleteClusterRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.DeleteClusterRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -742,7 +706,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2451
+     *     google/container/v1/cluster_service.proto;l=2464
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -769,7 +733,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2451
+     *     google/container/v1/cluster_service.proto;l=2464
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -796,7 +760,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2451
+     *     google/container/v1/cluster_service.proto;l=2464
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -822,7 +786,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2451
+     *     google/container/v1/cluster_service.proto;l=2464
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -844,7 +808,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2451
+     *     google/container/v1/cluster_service.proto;l=2464
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -874,7 +838,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2457
+     *     google/container/v1/cluster_service.proto;l=2470
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -902,7 +866,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2457
+     *     google/container/v1/cluster_service.proto;l=2470
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -930,7 +894,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2457
+     *     google/container/v1/cluster_service.proto;l=2470
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -957,7 +921,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2457
+     *     google/container/v1/cluster_service.proto;l=2470
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -980,7 +944,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2457
+     *     google/container/v1/cluster_service.proto;l=2470
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1008,7 +972,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2461
+     *     google/container/v1/cluster_service.proto;l=2474
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1034,7 +998,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2461
+     *     google/container/v1/cluster_service.proto;l=2474
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1060,7 +1024,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2461
+     *     google/container/v1/cluster_service.proto;l=2474
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1085,7 +1049,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2461
+     *     google/container/v1/cluster_service.proto;l=2474
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1106,7 +1070,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2461
+     *     google/container/v1/cluster_service.proto;l=2474
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1265,7 +1229,18 @@ public DeleteClusterRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DeleteClusterRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteClusterRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteClusterRequestOrBuilder.java
index a4a40c3f..4e0c9fda 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteClusterRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteClusterRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface DeleteClusterRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2451
+   *     google/container/v1/cluster_service.proto;l=2464
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface DeleteClusterRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2451
+   *     google/container/v1/cluster_service.proto;l=2464
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface DeleteClusterRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2457
+   *     google/container/v1/cluster_service.proto;l=2470
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface DeleteClusterRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2457
+   *     google/container/v1/cluster_service.proto;l=2470
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface DeleteClusterRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2461
+   *     google/container/v1/cluster_service.proto;l=2474
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface DeleteClusterRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2461
+   *     google/container/v1/cluster_service.proto;l=2474
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteNodePoolRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteNodePoolRequest.java
index 09ceb362..98aaca83 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteNodePoolRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteNodePoolRequest.java
@@ -56,80 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DeleteNodePoolRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_DeleteNodePoolRequest_descriptor;
@@ -159,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2653
+   *     google/container/v1/cluster_service.proto;l=2666
    * @return The projectId.
    */
   @java.lang.Override
@@ -187,7 +113,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2653
+   *     google/container/v1/cluster_service.proto;l=2666
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -219,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2659
+   *     google/container/v1/cluster_service.proto;l=2672
    * @return The zone.
    */
   @java.lang.Override
@@ -248,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2659
+   *     google/container/v1/cluster_service.proto;l=2672
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -278,7 +204,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2663
+   *     google/container/v1/cluster_service.proto;l=2676
    * @return The clusterId.
    */
   @java.lang.Override
@@ -305,7 +231,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2663
+   *     google/container/v1/cluster_service.proto;l=2676
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -335,7 +261,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2667
+   *     google/container/v1/cluster_service.proto;l=2680
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -362,7 +288,7 @@ public java.lang.String getNodePoolId() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2667
+   *     google/container/v1/cluster_service.proto;l=2680
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -461,7 +387,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -485,7 +411,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -506,7 +432,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getNodePoolId().equals(other.getNodePoolId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -527,7 +453,7 @@ public int hashCode() {
     hash = (53 * hash) + getNodePoolId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -656,17 +582,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.DeleteNodePoolRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -783,7 +702,7 @@ public Builder mergeFrom(com.google.container.v1.DeleteNodePoolRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -798,17 +717,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.DeleteNodePoolRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.DeleteNodePoolRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -825,7 +788,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2653
+     *     google/container/v1/cluster_service.proto;l=2666
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -852,7 +815,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2653
+     *     google/container/v1/cluster_service.proto;l=2666
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -879,7 +842,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2653
+     *     google/container/v1/cluster_service.proto;l=2666
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -905,7 +868,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2653
+     *     google/container/v1/cluster_service.proto;l=2666
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -927,7 +890,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2653
+     *     google/container/v1/cluster_service.proto;l=2666
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -957,7 +920,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2659
+     *     google/container/v1/cluster_service.proto;l=2672
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -985,7 +948,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2659
+     *     google/container/v1/cluster_service.proto;l=2672
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1013,7 +976,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2659
+     *     google/container/v1/cluster_service.proto;l=2672
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1040,7 +1003,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2659
+     *     google/container/v1/cluster_service.proto;l=2672
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1063,7 +1026,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2659
+     *     google/container/v1/cluster_service.proto;l=2672
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1091,7 +1054,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2663
+     *     google/container/v1/cluster_service.proto;l=2676
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1117,7 +1080,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2663
+     *     google/container/v1/cluster_service.proto;l=2676
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1143,7 +1106,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2663
+     *     google/container/v1/cluster_service.proto;l=2676
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1168,7 +1131,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2663
+     *     google/container/v1/cluster_service.proto;l=2676
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1189,7 +1152,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2663
+     *     google/container/v1/cluster_service.proto;l=2676
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1217,7 +1180,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2667
+     *     google/container/v1/cluster_service.proto;l=2680
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1243,7 +1206,7 @@ public java.lang.String getNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2667
+     *     google/container/v1/cluster_service.proto;l=2680
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1269,7 +1232,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2667
+     *     google/container/v1/cluster_service.proto;l=2680
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1294,7 +1257,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2667
+     *     google/container/v1/cluster_service.proto;l=2680
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1315,7 +1278,7 @@ public Builder clearNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2667
+     *     google/container/v1/cluster_service.proto;l=2680
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1479,7 +1442,18 @@ public DeleteNodePoolRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DeleteNodePoolRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteNodePoolRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteNodePoolRequestOrBuilder.java
index 50a07f0a..21fb6ad6 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteNodePoolRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DeleteNodePoolRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2653
+   *     google/container/v1/cluster_service.proto;l=2666
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2653
+   *     google/container/v1/cluster_service.proto;l=2666
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2659
+   *     google/container/v1/cluster_service.proto;l=2672
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2659
+   *     google/container/v1/cluster_service.proto;l=2672
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2663
+   *     google/container/v1/cluster_service.proto;l=2676
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2663
+   *     google/container/v1/cluster_service.proto;l=2676
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -139,7 +139,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2667
+   *     google/container/v1/cluster_service.proto;l=2680
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -155,7 +155,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2667
+   *     google/container/v1/cluster_service.proto;l=2680
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DnsCacheConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DnsCacheConfig.java
index 73aaa95e..42d89a27 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DnsCacheConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/DnsCacheConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DnsCacheConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_DnsCacheConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -172,7 +128,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.DnsCacheConfig other = (com.google.container.v1.DnsCacheConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -185,7 +141,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -314,17 +270,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.DnsCacheConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -412,7 +361,7 @@ public Builder mergeFrom(com.google.container.v1.DnsCacheConfig other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -427,17 +376,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.DnsCacheConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.DnsCacheConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -525,7 +494,18 @@ public DnsCacheConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DnsCacheConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GPUSharingConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GPUSharingConfig.java
index bb681d5e..78de9c49 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GPUSharingConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GPUSharingConfig.java
@@ -53,58 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GPUSharingConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              maxSharedClientsPerGpu_ = input.readInt64();
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-              bitField0_ |= 0x00000001;
-              gpuSharingStrategy_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GPUSharingConfig_descriptor;
@@ -356,7 +304,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeEnum(2, gpuSharingStrategy_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -371,7 +319,7 @@ public int getSerializedSize() {
     if (((bitField0_ & 0x00000001) != 0)) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, gpuSharingStrategy_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -391,7 +339,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasGpuSharingStrategy()) {
       if (gpuSharingStrategy_ != other.gpuSharingStrategy_) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -408,7 +356,7 @@ public int hashCode() {
       hash = (37 * hash) + GPU_SHARING_STRATEGY_FIELD_NUMBER;
       hash = (53 * hash) + gpuSharingStrategy_;
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -538,17 +486,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GPUSharingConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -648,7 +589,7 @@ public Builder mergeFrom(com.google.container.v1.GPUSharingConfig other) {
       if (other.hasGpuSharingStrategy()) {
         setGpuSharingStrategy(other.getGpuSharingStrategy());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -663,17 +604,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GPUSharingConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                maxSharedClientsPerGpu_ = input.readInt64();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                gpuSharingStrategy_ = input.readEnum();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.GPUSharingConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -884,7 +851,18 @@ public GPUSharingConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GPUSharingConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcePersistentDiskCsiDriverConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcePersistentDiskCsiDriverConfig.java
index 57404795..dd335385 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcePersistentDiskCsiDriverConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcePersistentDiskCsiDriverConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GcePersistentDiskCsiDriverConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GcePersistentDiskCsiDriverConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.GcePersistentDiskCsiDriverConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GcePersistentDiskCsiDriverConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -416,7 +365,7 @@ public Builder mergeFrom(com.google.container.v1.GcePersistentDiskCsiDriverConfi
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -431,18 +380,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GcePersistentDiskCsiDriverConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.GcePersistentDiskCsiDriverConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -530,7 +498,18 @@ public GcePersistentDiskCsiDriverConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GcePersistentDiskCsiDriverConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcfsConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcfsConfig.java
index 1b724b3e..c8e4473a 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcfsConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcfsConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GcfsConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GcfsConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.GcfsConfig other = (com.google.container.v1.GcfsConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GcfsConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -412,7 +361,7 @@ public Builder mergeFrom(com.google.container.v1.GcfsConfig other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -427,17 +376,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GcfsConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.GcfsConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -525,7 +494,18 @@ public GcfsConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GcfsConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcpFilestoreCsiDriverConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcpFilestoreCsiDriverConfig.java
index b4463be1..80e4e824 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcpFilestoreCsiDriverConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GcpFilestoreCsiDriverConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GcpFilestoreCsiDriverConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GcpFilestoreCsiDriverConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.GcpFilestoreCsiDriverConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GcpFilestoreCsiDriverConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -414,7 +363,7 @@ public Builder mergeFrom(com.google.container.v1.GcpFilestoreCsiDriverConfig oth
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -429,18 +378,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GcpFilestoreCsiDriverConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.GcpFilestoreCsiDriverConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +496,18 @@ public GcpFilestoreCsiDriverConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GcpFilestoreCsiDriverConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetClusterRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetClusterRequest.java
index 3b24de76..dcd9ba4f 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetClusterRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetClusterRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetClusterRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GetClusterRequest_descriptor;
@@ -151,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2077
+   *     google/container/v1/cluster_service.proto;l=2087
    * @return The projectId.
    */
   @java.lang.Override
@@ -179,7 +112,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2077
+   *     google/container/v1/cluster_service.proto;l=2087
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -211,7 +144,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2083
+   *     google/container/v1/cluster_service.proto;l=2093
    * @return The zone.
    */
   @java.lang.Override
@@ -240,7 +173,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2083
+   *     google/container/v1/cluster_service.proto;l=2093
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -270,7 +203,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2087
+   *     google/container/v1/cluster_service.proto;l=2097
    * @return The clusterId.
    */
   @java.lang.Override
@@ -297,7 +230,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2087
+   *     google/container/v1/cluster_service.proto;l=2097
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -391,7 +324,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -412,7 +345,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -432,7 +365,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -451,7 +384,7 @@ public int hashCode() {
     hash = (53 * hash) + getClusterId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -580,17 +513,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GetClusterRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -700,7 +626,7 @@ public Builder mergeFrom(com.google.container.v1.GetClusterRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -715,17 +641,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GetClusterRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 42:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.GetClusterRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -742,7 +706,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2077
+     *     google/container/v1/cluster_service.proto;l=2087
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -769,7 +733,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2077
+     *     google/container/v1/cluster_service.proto;l=2087
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -796,7 +760,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2077
+     *     google/container/v1/cluster_service.proto;l=2087
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -822,7 +786,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2077
+     *     google/container/v1/cluster_service.proto;l=2087
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -844,7 +808,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2077
+     *     google/container/v1/cluster_service.proto;l=2087
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -874,7 +838,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2083
+     *     google/container/v1/cluster_service.proto;l=2093
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -902,7 +866,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2083
+     *     google/container/v1/cluster_service.proto;l=2093
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -930,7 +894,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2083
+     *     google/container/v1/cluster_service.proto;l=2093
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -957,7 +921,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2083
+     *     google/container/v1/cluster_service.proto;l=2093
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -980,7 +944,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2083
+     *     google/container/v1/cluster_service.proto;l=2093
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1008,7 +972,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2087
+     *     google/container/v1/cluster_service.proto;l=2097
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1034,7 +998,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2087
+     *     google/container/v1/cluster_service.proto;l=2097
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1060,7 +1024,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2087
+     *     google/container/v1/cluster_service.proto;l=2097
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1085,7 +1049,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2087
+     *     google/container/v1/cluster_service.proto;l=2097
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1106,7 +1070,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2087
+     *     google/container/v1/cluster_service.proto;l=2097
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1265,7 +1229,18 @@ public GetClusterRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetClusterRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetClusterRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetClusterRequestOrBuilder.java
index 16e91143..0ee6fa6b 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetClusterRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetClusterRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface GetClusterRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2077
+   *     google/container/v1/cluster_service.proto;l=2087
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface GetClusterRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2077
+   *     google/container/v1/cluster_service.proto;l=2087
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface GetClusterRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2083
+   *     google/container/v1/cluster_service.proto;l=2093
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface GetClusterRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2083
+   *     google/container/v1/cluster_service.proto;l=2093
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface GetClusterRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2087
+   *     google/container/v1/cluster_service.proto;l=2097
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface GetClusterRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2087
+   *     google/container/v1/cluster_service.proto;l=2097
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetJSONWebKeysRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetJSONWebKeysRequest.java
index c666a99d..1c531d01 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetJSONWebKeysRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetJSONWebKeysRequest.java
@@ -55,52 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetJSONWebKeysRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GetJSONWebKeysRequest_descriptor;
@@ -184,7 +138,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -196,7 +150,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -213,7 +167,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.GetJSONWebKeysRequest) obj;
 
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -226,7 +180,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -358,17 +312,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GetJSONWebKeysRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -457,7 +404,7 @@ public Builder mergeFrom(com.google.container.v1.GetJSONWebKeysRequest other) {
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -472,17 +419,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GetJSONWebKeysRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.GetJSONWebKeysRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -629,7 +596,18 @@ public GetJSONWebKeysRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetJSONWebKeysRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetJSONWebKeysResponse.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetJSONWebKeysResponse.java
index f14fb66c..fe085f38 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetJSONWebKeysResponse.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetJSONWebKeysResponse.java
@@ -52,58 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetJSONWebKeysResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                keys_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              keys_.add(input.readMessage(com.google.container.v1.Jwk.parser(), extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        keys_ = java.util.Collections.unmodifiableList(keys_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GetJSONWebKeysResponse_descriptor;
@@ -209,7 +157,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < keys_.size(); i++) {
       output.writeMessage(1, keys_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -221,7 +169,7 @@ public int getSerializedSize() {
     for (int i = 0; i < keys_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, keys_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -238,7 +186,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.GetJSONWebKeysResponse) obj;
 
     if (!getKeysList().equals(other.getKeysList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -253,7 +201,7 @@ public int hashCode() {
       hash = (37 * hash) + KEYS_FIELD_NUMBER;
       hash = (53 * hash) + getKeysList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -382,19 +330,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GetJSONWebKeysResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getKeysFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -402,10 +341,11 @@ public Builder clear() {
       super.clear();
       if (keysBuilder_ == null) {
         keys_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        keys_ = null;
         keysBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       return this;
     }
 
@@ -519,7 +459,7 @@ public Builder mergeFrom(com.google.container.v1.GetJSONWebKeysResponse other) {
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -534,17 +474,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GetJSONWebKeysResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1.Jwk m =
+                    input.readMessage(com.google.container.v1.Jwk.parser(), extensionRegistry);
+                if (keysBuilder_ == null) {
+                  ensureKeysIsMutable();
+                  keys_.add(m);
+                } else {
+                  keysBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.GetJSONWebKeysResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -942,7 +908,18 @@ public GetJSONWebKeysResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetJSONWebKeysResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetNodePoolRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetNodePoolRequest.java
index e4f49a57..0d9b0456 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetNodePoolRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetNodePoolRequest.java
@@ -56,80 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetNodePoolRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GetNodePoolRequest_descriptor;
@@ -159,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2702
+   *     google/container/v1/cluster_service.proto;l=2715
    * @return The projectId.
    */
   @java.lang.Override
@@ -187,7 +113,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2702
+   *     google/container/v1/cluster_service.proto;l=2715
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -219,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2708
+   *     google/container/v1/cluster_service.proto;l=2721
    * @return The zone.
    */
   @java.lang.Override
@@ -248,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2708
+   *     google/container/v1/cluster_service.proto;l=2721
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -278,7 +204,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2712
+   *     google/container/v1/cluster_service.proto;l=2725
    * @return The clusterId.
    */
   @java.lang.Override
@@ -305,7 +231,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2712
+   *     google/container/v1/cluster_service.proto;l=2725
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -335,7 +261,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2716
+   *     google/container/v1/cluster_service.proto;l=2729
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -362,7 +288,7 @@ public java.lang.String getNodePoolId() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2716
+   *     google/container/v1/cluster_service.proto;l=2729
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -461,7 +387,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -485,7 +411,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -506,7 +432,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getNodePoolId().equals(other.getNodePoolId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -527,7 +453,7 @@ public int hashCode() {
     hash = (53 * hash) + getNodePoolId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -656,17 +582,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GetNodePoolRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -783,7 +702,7 @@ public Builder mergeFrom(com.google.container.v1.GetNodePoolRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -798,17 +717,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GetNodePoolRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.GetNodePoolRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -825,7 +788,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2702
+     *     google/container/v1/cluster_service.proto;l=2715
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -852,7 +815,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2702
+     *     google/container/v1/cluster_service.proto;l=2715
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -879,7 +842,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2702
+     *     google/container/v1/cluster_service.proto;l=2715
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -905,7 +868,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2702
+     *     google/container/v1/cluster_service.proto;l=2715
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -927,7 +890,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2702
+     *     google/container/v1/cluster_service.proto;l=2715
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -957,7 +920,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2708
+     *     google/container/v1/cluster_service.proto;l=2721
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -985,7 +948,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2708
+     *     google/container/v1/cluster_service.proto;l=2721
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1013,7 +976,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2708
+     *     google/container/v1/cluster_service.proto;l=2721
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1040,7 +1003,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2708
+     *     google/container/v1/cluster_service.proto;l=2721
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1063,7 +1026,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2708
+     *     google/container/v1/cluster_service.proto;l=2721
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1091,7 +1054,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2712
+     *     google/container/v1/cluster_service.proto;l=2725
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1117,7 +1080,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2712
+     *     google/container/v1/cluster_service.proto;l=2725
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1143,7 +1106,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2712
+     *     google/container/v1/cluster_service.proto;l=2725
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1168,7 +1131,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2712
+     *     google/container/v1/cluster_service.proto;l=2725
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1189,7 +1152,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2712
+     *     google/container/v1/cluster_service.proto;l=2725
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1217,7 +1180,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2716
+     *     google/container/v1/cluster_service.proto;l=2729
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1243,7 +1206,7 @@ public java.lang.String getNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2716
+     *     google/container/v1/cluster_service.proto;l=2729
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1269,7 +1232,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2716
+     *     google/container/v1/cluster_service.proto;l=2729
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1294,7 +1257,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2716
+     *     google/container/v1/cluster_service.proto;l=2729
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1315,7 +1278,7 @@ public Builder clearNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.GetNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2716
+     *     google/container/v1/cluster_service.proto;l=2729
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1479,7 +1442,18 @@ public GetNodePoolRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetNodePoolRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetNodePoolRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetNodePoolRequestOrBuilder.java
index f8d146b0..d222f6a6 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetNodePoolRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetNodePoolRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface GetNodePoolRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2702
+   *     google/container/v1/cluster_service.proto;l=2715
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface GetNodePoolRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2702
+   *     google/container/v1/cluster_service.proto;l=2715
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface GetNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2708
+   *     google/container/v1/cluster_service.proto;l=2721
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface GetNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2708
+   *     google/container/v1/cluster_service.proto;l=2721
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface GetNodePoolRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2712
+   *     google/container/v1/cluster_service.proto;l=2725
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface GetNodePoolRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2712
+   *     google/container/v1/cluster_service.proto;l=2725
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -139,7 +139,7 @@ public interface GetNodePoolRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2716
+   *     google/container/v1/cluster_service.proto;l=2729
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -155,7 +155,7 @@ public interface GetNodePoolRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.GetNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2716
+   *     google/container/v1/cluster_service.proto;l=2729
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOpenIDConfigRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOpenIDConfigRequest.java
index 855b1e9d..4dbfa10d 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOpenIDConfigRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOpenIDConfigRequest.java
@@ -53,52 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetOpenIDConfigRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GetOpenIDConfigRequest_descriptor;
@@ -182,7 +136,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -194,7 +148,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -211,7 +165,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.GetOpenIDConfigRequest) obj;
 
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -224,7 +178,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -354,17 +308,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GetOpenIDConfigRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -453,7 +400,7 @@ public Builder mergeFrom(com.google.container.v1.GetOpenIDConfigRequest other) {
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -468,17 +415,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GetOpenIDConfigRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.GetOpenIDConfigRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -625,7 +592,18 @@ public GetOpenIDConfigRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetOpenIDConfigRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOpenIDConfigResponse.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOpenIDConfigResponse.java
index 22764674..a9dd9a69 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOpenIDConfigResponse.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOpenIDConfigResponse.java
@@ -59,125 +59,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetOpenIDConfigResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              issuer_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              jwksUri_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                responseTypesSupported_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              responseTypesSupported_.add(s);
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                subjectTypesSupported_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              subjectTypesSupported_.add(s);
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                idTokenSigningAlgValuesSupported_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000004;
-              }
-              idTokenSigningAlgValuesSupported_.add(s);
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000008) != 0)) {
-                claimsSupported_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000008;
-              }
-              claimsSupported_.add(s);
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000010) != 0)) {
-                grantTypes_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000010;
-              }
-              grantTypes_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        responseTypesSupported_ = responseTypesSupported_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        subjectTypesSupported_ = subjectTypesSupported_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000004) != 0)) {
-        idTokenSigningAlgValuesSupported_ = idTokenSigningAlgValuesSupported_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000008) != 0)) {
-        claimsSupported_ = claimsSupported_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000010) != 0)) {
-        grantTypes_ = grantTypes_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GetOpenIDConfigResponse_descriptor;
@@ -634,7 +515,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < grantTypes_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, grantTypes_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -689,7 +570,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getGrantTypesList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -714,7 +595,7 @@ public boolean equals(final java.lang.Object obj) {
         .equals(other.getIdTokenSigningAlgValuesSupportedList())) return false;
     if (!getClaimsSupportedList().equals(other.getClaimsSupportedList())) return false;
     if (!getGrantTypesList().equals(other.getGrantTypesList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -749,7 +630,7 @@ public int hashCode() {
       hash = (37 * hash) + GRANT_TYPES_FIELD_NUMBER;
       hash = (53 * hash) + getGrantTypesList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -879,17 +760,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GetOpenIDConfigResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1072,7 +946,7 @@ public Builder mergeFrom(com.google.container.v1.GetOpenIDConfigResponse other)
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1087,17 +961,78 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GetOpenIDConfigResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                issuer_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                jwksUri_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureResponseTypesSupportedIsMutable();
+                responseTypesSupported_.add(s);
+                break;
+              } // case 26
+            case 34:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureSubjectTypesSupportedIsMutable();
+                subjectTypesSupported_.add(s);
+                break;
+              } // case 34
+            case 42:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureIdTokenSigningAlgValuesSupportedIsMutable();
+                idTokenSigningAlgValuesSupported_.add(s);
+                break;
+              } // case 42
+            case 50:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureClaimsSupportedIsMutable();
+                claimsSupported_.add(s);
+                break;
+              } // case 50
+            case 58:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureGrantTypesIsMutable();
+                grantTypes_.add(s);
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.GetOpenIDConfigResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2192,7 +2127,18 @@ public GetOpenIDConfigResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetOpenIDConfigResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOperationRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOperationRequest.java
index 9d337f6f..14d44214 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOperationRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOperationRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetOperationRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              operationId_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GetOperationRequest_descriptor;
@@ -151,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2503
+   *     google/container/v1/cluster_service.proto;l=2516
    * @return The projectId.
    */
   @java.lang.Override
@@ -179,7 +112,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2503
+   *     google/container/v1/cluster_service.proto;l=2516
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -211,7 +144,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2509
+   *     google/container/v1/cluster_service.proto;l=2522
    * @return The zone.
    */
   @java.lang.Override
@@ -240,7 +173,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2509
+   *     google/container/v1/cluster_service.proto;l=2522
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -270,7 +203,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string operation_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.operation_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2513
+   *     google/container/v1/cluster_service.proto;l=2526
    * @return The operationId.
    */
   @java.lang.Override
@@ -297,7 +230,7 @@ public java.lang.String getOperationId() {
    * string operation_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.operation_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2513
+   *     google/container/v1/cluster_service.proto;l=2526
    * @return The bytes for operationId.
    */
   @java.lang.Override
@@ -391,7 +324,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -412,7 +345,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -432,7 +365,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getOperationId().equals(other.getOperationId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -451,7 +384,7 @@ public int hashCode() {
     hash = (53 * hash) + getOperationId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -580,17 +513,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GetOperationRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -700,7 +626,7 @@ public Builder mergeFrom(com.google.container.v1.GetOperationRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -715,17 +641,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GetOperationRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                operationId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 42:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.GetOperationRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -742,7 +706,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2503
+     *     google/container/v1/cluster_service.proto;l=2516
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -769,7 +733,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2503
+     *     google/container/v1/cluster_service.proto;l=2516
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -796,7 +760,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2503
+     *     google/container/v1/cluster_service.proto;l=2516
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -822,7 +786,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2503
+     *     google/container/v1/cluster_service.proto;l=2516
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -844,7 +808,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2503
+     *     google/container/v1/cluster_service.proto;l=2516
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -874,7 +838,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2509
+     *     google/container/v1/cluster_service.proto;l=2522
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -902,7 +866,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2509
+     *     google/container/v1/cluster_service.proto;l=2522
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -930,7 +894,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2509
+     *     google/container/v1/cluster_service.proto;l=2522
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -957,7 +921,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2509
+     *     google/container/v1/cluster_service.proto;l=2522
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -980,7 +944,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2509
+     *     google/container/v1/cluster_service.proto;l=2522
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1008,7 +972,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string operation_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.operation_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2513
+     *     google/container/v1/cluster_service.proto;l=2526
      * @return The operationId.
      */
     @java.lang.Deprecated
@@ -1034,7 +998,7 @@ public java.lang.String getOperationId() {
      * string operation_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.operation_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2513
+     *     google/container/v1/cluster_service.proto;l=2526
      * @return The bytes for operationId.
      */
     @java.lang.Deprecated
@@ -1060,7 +1024,7 @@ public com.google.protobuf.ByteString getOperationIdBytes() {
      * string operation_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.operation_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2513
+     *     google/container/v1/cluster_service.proto;l=2526
      * @param value The operationId to set.
      * @return This builder for chaining.
      */
@@ -1085,7 +1049,7 @@ public Builder setOperationId(java.lang.String value) {
      * string operation_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.operation_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2513
+     *     google/container/v1/cluster_service.proto;l=2526
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1106,7 +1070,7 @@ public Builder clearOperationId() {
      * string operation_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.GetOperationRequest.operation_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2513
+     *     google/container/v1/cluster_service.proto;l=2526
      * @param value The bytes for operationId to set.
      * @return This builder for chaining.
      */
@@ -1265,7 +1229,18 @@ public GetOperationRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetOperationRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOperationRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOperationRequestOrBuilder.java
index be37ab0c..32f6f0af 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOperationRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetOperationRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface GetOperationRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2503
+   *     google/container/v1/cluster_service.proto;l=2516
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface GetOperationRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2503
+   *     google/container/v1/cluster_service.proto;l=2516
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface GetOperationRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2509
+   *     google/container/v1/cluster_service.proto;l=2522
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface GetOperationRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2509
+   *     google/container/v1/cluster_service.proto;l=2522
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface GetOperationRequestOrBuilder
    * string operation_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.operation_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2513
+   *     google/container/v1/cluster_service.proto;l=2526
    * @return The operationId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface GetOperationRequestOrBuilder
    * string operation_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.GetOperationRequest.operation_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2513
+   *     google/container/v1/cluster_service.proto;l=2526
    * @return The bytes for operationId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetServerConfigRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetServerConfigRequest.java
index 9ec693fb..749572d7 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetServerConfigRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetServerConfigRequest.java
@@ -54,66 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetServerConfigRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_GetServerConfigRequest_descriptor;
@@ -143,7 +83,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetServerConfigRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2576
+   *     google/container/v1/cluster_service.proto;l=2589
    * @return The projectId.
    */
   @java.lang.Override
@@ -171,7 +111,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetServerConfigRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2576
+   *     google/container/v1/cluster_service.proto;l=2589
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -203,7 +143,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetServerConfigRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2582
+   *     google/container/v1/cluster_service.proto;l=2595
    * @return The zone.
    */
   @java.lang.Override
@@ -232,7 +172,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetServerConfigRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2582
+   *     google/container/v1/cluster_service.proto;l=2595
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -323,7 +263,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -341,7 +281,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -360,7 +300,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getProjectId().equals(other.getProjectId())) return false;
     if (!getZone().equals(other.getZone())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -377,7 +317,7 @@ public int hashCode() {
     hash = (53 * hash) + getZone().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -506,17 +446,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.GetServerConfigRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -619,7 +552,7 @@ public Builder mergeFrom(com.google.container.v1.GetServerConfigRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -634,17 +567,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.GetServerConfigRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 34:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.GetServerConfigRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -661,7 +626,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetServerConfigRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2576
+     *     google/container/v1/cluster_service.proto;l=2589
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -688,7 +653,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetServerConfigRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2576
+     *     google/container/v1/cluster_service.proto;l=2589
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -715,7 +680,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetServerConfigRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2576
+     *     google/container/v1/cluster_service.proto;l=2589
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -741,7 +706,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetServerConfigRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2576
+     *     google/container/v1/cluster_service.proto;l=2589
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -763,7 +728,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.GetServerConfigRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2576
+     *     google/container/v1/cluster_service.proto;l=2589
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -793,7 +758,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetServerConfigRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2582
+     *     google/container/v1/cluster_service.proto;l=2595
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -821,7 +786,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetServerConfigRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2582
+     *     google/container/v1/cluster_service.proto;l=2595
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -849,7 +814,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetServerConfigRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2582
+     *     google/container/v1/cluster_service.proto;l=2595
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -876,7 +841,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetServerConfigRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2582
+     *     google/container/v1/cluster_service.proto;l=2595
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -899,7 +864,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.GetServerConfigRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2582
+     *     google/container/v1/cluster_service.proto;l=2595
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1058,7 +1023,18 @@ public GetServerConfigRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetServerConfigRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetServerConfigRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetServerConfigRequestOrBuilder.java
index de7f54c2..6b73335d 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetServerConfigRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/GetServerConfigRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface GetServerConfigRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetServerConfigRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2576
+   *     google/container/v1/cluster_service.proto;l=2589
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface GetServerConfigRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.GetServerConfigRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2576
+   *     google/container/v1/cluster_service.proto;l=2589
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface GetServerConfigRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetServerConfigRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2582
+   *     google/container/v1/cluster_service.proto;l=2595
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface GetServerConfigRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.GetServerConfigRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2582
+   *     google/container/v1/cluster_service.proto;l=2595
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/HorizontalPodAutoscaling.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/HorizontalPodAutoscaling.java
index c9fbe59b..50f19e3a 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/HorizontalPodAutoscaling.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/HorizontalPodAutoscaling.java
@@ -52,50 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private HorizontalPodAutoscaling(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_HorizontalPodAutoscaling_descriptor;
@@ -148,7 +104,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (disabled_ != false) {
       output.writeBool(1, disabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -160,7 +116,7 @@ public int getSerializedSize() {
     if (disabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, disabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -177,7 +133,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.HorizontalPodAutoscaling) obj;
 
     if (getDisabled() != other.getDisabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -190,7 +146,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DISABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -321,17 +277,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.HorizontalPodAutoscaling.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -420,7 +369,7 @@ public Builder mergeFrom(com.google.container.v1.HorizontalPodAutoscaling other)
       if (other.getDisabled() != false) {
         setDisabled(other.getDisabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -435,17 +384,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.HorizontalPodAutoscaling parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.HorizontalPodAutoscaling) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -539,7 +508,18 @@ public HorizontalPodAutoscaling parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new HorizontalPodAutoscaling(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/HttpLoadBalancing.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/HttpLoadBalancing.java
index c6925abb..0dcbb366 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/HttpLoadBalancing.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/HttpLoadBalancing.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private HttpLoadBalancing(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_HttpLoadBalancing_descriptor;
@@ -147,7 +103,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (disabled_ != false) {
       output.writeBool(1, disabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -159,7 +115,7 @@ public int getSerializedSize() {
     if (disabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, disabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -176,7 +132,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.HttpLoadBalancing) obj;
 
     if (getDisabled() != other.getDisabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -189,7 +145,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DISABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -319,17 +275,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.HttpLoadBalancing.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -417,7 +366,7 @@ public Builder mergeFrom(com.google.container.v1.HttpLoadBalancing other) {
       if (other.getDisabled() != false) {
         setDisabled(other.getDisabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -432,17 +381,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.HttpLoadBalancing parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.HttpLoadBalancing) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -536,7 +505,18 @@ public HttpLoadBalancing parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new HttpLoadBalancing(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ILBSubsettingConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ILBSubsettingConfig.java
index 372bb42c..e3b12a2f 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ILBSubsettingConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ILBSubsettingConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ILBSubsettingConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ILBSubsettingConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.ILBSubsettingConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ILBSubsettingConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1.ILBSubsettingConfig other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,17 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ILBSubsettingConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ILBSubsettingConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +497,18 @@ public ILBSubsettingConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ILBSubsettingConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IPAllocationPolicy.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IPAllocationPolicy.java
index 0ca6578a..83c3dc84 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IPAllocationPolicy.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IPAllocationPolicy.java
@@ -61,130 +61,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private IPAllocationPolicy(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              useIpAliases_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              createSubnetwork_ = input.readBool();
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              subnetworkName_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterIpv4Cidr_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodeIpv4Cidr_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              servicesIpv4Cidr_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterSecondaryRangeName_ = s;
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              servicesSecondaryRangeName_ = s;
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterIpv4CidrBlock_ = s;
-              break;
-            }
-          case 82:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodeIpv4CidrBlock_ = s;
-              break;
-            }
-          case 90:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              servicesIpv4CidrBlock_ = s;
-              break;
-            }
-          case 106:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              tpuIpv4CidrBlock_ = s;
-              break;
-            }
-          case 120:
-            {
-              useRoutes_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_IPAllocationPolicy_descriptor;
@@ -305,7 +181,7 @@ public com.google.protobuf.ByteString getSubnetworkNameBytes() {
    * string cluster_ipv4_cidr = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1251
+   *     google/container/v1/cluster_service.proto;l=1255
    * @return The clusterIpv4Cidr.
    */
   @java.lang.Override
@@ -331,7 +207,7 @@ public java.lang.String getClusterIpv4Cidr() {
    * string cluster_ipv4_cidr = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1251
+   *     google/container/v1/cluster_service.proto;l=1255
    * @return The bytes for clusterIpv4Cidr.
    */
   @java.lang.Override
@@ -360,7 +236,7 @@ public com.google.protobuf.ByteString getClusterIpv4CidrBytes() {
    * string node_ipv4_cidr = 5 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1254
+   *     google/container/v1/cluster_service.proto;l=1258
    * @return The nodeIpv4Cidr.
    */
   @java.lang.Override
@@ -386,7 +262,7 @@ public java.lang.String getNodeIpv4Cidr() {
    * string node_ipv4_cidr = 5 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1254
+   *     google/container/v1/cluster_service.proto;l=1258
    * @return The bytes for nodeIpv4Cidr.
    */
   @java.lang.Override
@@ -415,7 +291,7 @@ public com.google.protobuf.ByteString getNodeIpv4CidrBytes() {
    * string services_ipv4_cidr = 6 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1257
+   *     google/container/v1/cluster_service.proto;l=1261
    * @return The servicesIpv4Cidr.
    */
   @java.lang.Override
@@ -441,7 +317,7 @@ public java.lang.String getServicesIpv4Cidr() {
    * string services_ipv4_cidr = 6 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1257
+   *     google/container/v1/cluster_service.proto;l=1261
    * @return The bytes for servicesIpv4Cidr.
    */
   @java.lang.Override
@@ -924,7 +800,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (useRoutes_ != false) {
       output.writeBool(15, useRoutes_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -974,7 +850,7 @@ public int getSerializedSize() {
     if (useRoutes_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(15, useRoutes_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1004,7 +880,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getServicesIpv4CidrBlock().equals(other.getServicesIpv4CidrBlock())) return false;
     if (!getTpuIpv4CidrBlock().equals(other.getTpuIpv4CidrBlock())) return false;
     if (getUseRoutes() != other.getUseRoutes()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1041,7 +917,7 @@ public int hashCode() {
     hash = (53 * hash) + getTpuIpv4CidrBlock().hashCode();
     hash = (37 * hash) + USE_ROUTES_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getUseRoutes());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1170,17 +1046,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.IPAllocationPolicy.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1350,7 +1219,7 @@ public Builder mergeFrom(com.google.container.v1.IPAllocationPolicy other) {
       if (other.getUseRoutes() != false) {
         setUseRoutes(other.getUseRoutes());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1365,17 +1234,109 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.IPAllocationPolicy parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                useIpAliases_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                createSubnetwork_ = input.readBool();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                subnetworkName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                clusterIpv4Cidr_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                nodeIpv4Cidr_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                servicesIpv4Cidr_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 58:
+              {
+                clusterSecondaryRangeName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                servicesSecondaryRangeName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 74:
+              {
+                clusterIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 82:
+              {
+                nodeIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 82
+            case 90:
+              {
+                servicesIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 90
+            case 106:
+              {
+                tpuIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 106
+            case 120:
+              {
+                useRoutes_ = input.readBool();
+
+                break;
+              } // case 120
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.IPAllocationPolicy) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1622,7 +1583,7 @@ public Builder setSubnetworkNameBytes(com.google.protobuf.ByteString value) {
      * string cluster_ipv4_cidr = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1251
+     *     google/container/v1/cluster_service.proto;l=1255
      * @return The clusterIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -1647,7 +1608,7 @@ public java.lang.String getClusterIpv4Cidr() {
      * string cluster_ipv4_cidr = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1251
+     *     google/container/v1/cluster_service.proto;l=1255
      * @return The bytes for clusterIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -1672,7 +1633,7 @@ public com.google.protobuf.ByteString getClusterIpv4CidrBytes() {
      * string cluster_ipv4_cidr = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1251
+     *     google/container/v1/cluster_service.proto;l=1255
      * @param value The clusterIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -1696,7 +1657,7 @@ public Builder setClusterIpv4Cidr(java.lang.String value) {
      * string cluster_ipv4_cidr = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1251
+     *     google/container/v1/cluster_service.proto;l=1255
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1716,7 +1677,7 @@ public Builder clearClusterIpv4Cidr() {
      * string cluster_ipv4_cidr = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1251
+     *     google/container/v1/cluster_service.proto;l=1255
      * @param value The bytes for clusterIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -1743,7 +1704,7 @@ public Builder setClusterIpv4CidrBytes(com.google.protobuf.ByteString value) {
      * string node_ipv4_cidr = 5 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1254
+     *     google/container/v1/cluster_service.proto;l=1258
      * @return The nodeIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -1768,7 +1729,7 @@ public java.lang.String getNodeIpv4Cidr() {
      * string node_ipv4_cidr = 5 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1254
+     *     google/container/v1/cluster_service.proto;l=1258
      * @return The bytes for nodeIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -1793,7 +1754,7 @@ public com.google.protobuf.ByteString getNodeIpv4CidrBytes() {
      * string node_ipv4_cidr = 5 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1254
+     *     google/container/v1/cluster_service.proto;l=1258
      * @param value The nodeIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -1817,7 +1778,7 @@ public Builder setNodeIpv4Cidr(java.lang.String value) {
      * string node_ipv4_cidr = 5 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1254
+     *     google/container/v1/cluster_service.proto;l=1258
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1837,7 +1798,7 @@ public Builder clearNodeIpv4Cidr() {
      * string node_ipv4_cidr = 5 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1254
+     *     google/container/v1/cluster_service.proto;l=1258
      * @param value The bytes for nodeIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -1864,7 +1825,7 @@ public Builder setNodeIpv4CidrBytes(com.google.protobuf.ByteString value) {
      * string services_ipv4_cidr = 6 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1257
+     *     google/container/v1/cluster_service.proto;l=1261
      * @return The servicesIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -1889,7 +1850,7 @@ public java.lang.String getServicesIpv4Cidr() {
      * string services_ipv4_cidr = 6 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1257
+     *     google/container/v1/cluster_service.proto;l=1261
      * @return The bytes for servicesIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -1914,7 +1875,7 @@ public com.google.protobuf.ByteString getServicesIpv4CidrBytes() {
      * string services_ipv4_cidr = 6 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1257
+     *     google/container/v1/cluster_service.proto;l=1261
      * @param value The servicesIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -1938,7 +1899,7 @@ public Builder setServicesIpv4Cidr(java.lang.String value) {
      * string services_ipv4_cidr = 6 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1257
+     *     google/container/v1/cluster_service.proto;l=1261
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1958,7 +1919,7 @@ public Builder clearServicesIpv4Cidr() {
      * string services_ipv4_cidr = 6 [deprecated = true];
      *
      * @deprecated google.container.v1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1257
+     *     google/container/v1/cluster_service.proto;l=1261
      * @param value The bytes for servicesIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -2948,7 +2909,18 @@ public IPAllocationPolicy parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new IPAllocationPolicy(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IPAllocationPolicyOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IPAllocationPolicyOrBuilder.java
index 61ca7d8e..89679235 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IPAllocationPolicyOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IPAllocationPolicyOrBuilder.java
@@ -92,7 +92,7 @@ public interface IPAllocationPolicyOrBuilder
    * string cluster_ipv4_cidr = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1251
+   *     google/container/v1/cluster_service.proto;l=1255
    * @return The clusterIpv4Cidr.
    */
   @java.lang.Deprecated
@@ -107,7 +107,7 @@ public interface IPAllocationPolicyOrBuilder
    * string cluster_ipv4_cidr = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1251
+   *     google/container/v1/cluster_service.proto;l=1255
    * @return The bytes for clusterIpv4Cidr.
    */
   @java.lang.Deprecated
@@ -123,7 +123,7 @@ public interface IPAllocationPolicyOrBuilder
    * string node_ipv4_cidr = 5 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1254
+   *     google/container/v1/cluster_service.proto;l=1258
    * @return The nodeIpv4Cidr.
    */
   @java.lang.Deprecated
@@ -138,7 +138,7 @@ public interface IPAllocationPolicyOrBuilder
    * string node_ipv4_cidr = 5 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1254
+   *     google/container/v1/cluster_service.proto;l=1258
    * @return The bytes for nodeIpv4Cidr.
    */
   @java.lang.Deprecated
@@ -154,7 +154,7 @@ public interface IPAllocationPolicyOrBuilder
    * string services_ipv4_cidr = 6 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1257
+   *     google/container/v1/cluster_service.proto;l=1261
    * @return The servicesIpv4Cidr.
    */
   @java.lang.Deprecated
@@ -169,7 +169,7 @@ public interface IPAllocationPolicyOrBuilder
    * string services_ipv4_cidr = 6 [deprecated = true];
    *
    * @deprecated google.container.v1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1257
+   *     google/container/v1/cluster_service.proto;l=1261
    * @return The bytes for servicesIpv4Cidr.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IdentityServiceConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IdentityServiceConfig.java
index 63e2af08..6bd9aa6b 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IdentityServiceConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IdentityServiceConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private IdentityServiceConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_IdentityServiceConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.IdentityServiceConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.IdentityServiceConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1.IdentityServiceConfig other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,17 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.IdentityServiceConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.IdentityServiceConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +497,18 @@ public IdentityServiceConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new IdentityServiceConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IntraNodeVisibilityConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IntraNodeVisibilityConfig.java
index e66b9e15..6dc2502d 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IntraNodeVisibilityConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/IntraNodeVisibilityConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private IntraNodeVisibilityConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_IntraNodeVisibilityConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.IntraNodeVisibilityConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.IntraNodeVisibilityConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -416,7 +365,7 @@ public Builder mergeFrom(com.google.container.v1.IntraNodeVisibilityConfig other
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -431,18 +380,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.IntraNodeVisibilityConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.IntraNodeVisibilityConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -530,7 +498,18 @@ public IntraNodeVisibilityConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new IntraNodeVisibilityConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Jwk.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Jwk.java
index fc064e38..2c3404bf 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Jwk.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Jwk.java
@@ -60,108 +60,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private Jwk(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              kty_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              alg_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              use_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              kid_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              n_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              e_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              x_ = s;
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              y_ = s;
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              crv_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_Jwk_descriptor;
@@ -658,7 +556,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(crv_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 9, crv_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -694,7 +592,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(crv_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(9, crv_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -718,7 +616,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getX().equals(other.getX())) return false;
     if (!getY().equals(other.getY())) return false;
     if (!getCrv().equals(other.getCrv())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -747,7 +645,7 @@ public int hashCode() {
     hash = (53 * hash) + getY().hashCode();
     hash = (37 * hash) + CRV_FIELD_NUMBER;
     hash = (53 * hash) + getCrv().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -874,17 +772,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.Jwk.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1028,7 +919,7 @@ public Builder mergeFrom(com.google.container.v1.Jwk other) {
         crv_ = other.crv_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1043,17 +934,85 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.Jwk parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                kty_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                alg_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                use_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                kid_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                n_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                e_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 58:
+              {
+                x_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                y_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 74:
+              {
+                crv_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.Jwk) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2043,7 +2002,18 @@ public Jwk parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new Jwk(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/KubernetesDashboard.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/KubernetesDashboard.java
index 8c91c14e..3a1ff1c9 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/KubernetesDashboard.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/KubernetesDashboard.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private KubernetesDashboard(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_KubernetesDashboard_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (disabled_ != false) {
       output.writeBool(1, disabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (disabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, disabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.KubernetesDashboard) obj;
 
     if (getDisabled() != other.getDisabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DISABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.KubernetesDashboard.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -413,7 +362,7 @@ public Builder mergeFrom(com.google.container.v1.KubernetesDashboard other) {
       if (other.getDisabled() != false) {
         setDisabled(other.getDisabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -428,17 +377,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.KubernetesDashboard parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.KubernetesDashboard) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -526,7 +495,18 @@ public KubernetesDashboard parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new KubernetesDashboard(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LegacyAbac.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LegacyAbac.java
index ed832c0e..b329e6a3 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LegacyAbac.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LegacyAbac.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private LegacyAbac(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_LegacyAbac_descriptor;
@@ -148,7 +104,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -160,7 +116,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -176,7 +132,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.LegacyAbac other = (com.google.container.v1.LegacyAbac) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -189,7 +145,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -318,17 +274,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.LegacyAbac.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1.LegacyAbac other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,17 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.LegacyAbac parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.LegacyAbac) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -537,7 +506,18 @@ public LegacyAbac parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new LegacyAbac(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LinuxNodeConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LinuxNodeConfig.java
index a63fc7d7..6c985c84 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LinuxNodeConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LinuxNodeConfig.java
@@ -50,60 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private LinuxNodeConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                sysctls_ =
-                    com.google.protobuf.MapField.newMapField(
-                        SysctlsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000001;
-              }
-              com.google.protobuf.MapEntry sysctls__ =
-                  input.readMessage(
-                      SysctlsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
-              sysctls_.getMutableMap().put(sysctls__.getKey(), sysctls__.getValue());
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_LinuxNodeConfig_descriptor;
@@ -296,7 +242,7 @@ public final boolean isInitialized() {
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
         output, internalGetSysctls(), SysctlsDefaultEntryHolder.defaultEntry, 1);
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -315,7 +261,7 @@ public int getSerializedSize() {
               .build();
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, sysctls__);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -331,7 +277,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.LinuxNodeConfig other = (com.google.container.v1.LinuxNodeConfig) obj;
 
     if (!internalGetSysctls().equals(other.internalGetSysctls())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -346,7 +292,7 @@ public int hashCode() {
       hash = (37 * hash) + SYSCTLS_FIELD_NUMBER;
       hash = (53 * hash) + internalGetSysctls().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -495,17 +441,10 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1.LinuxNodeConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -592,7 +531,7 @@ public Builder mergeFrom(com.google.protobuf.Message other) {
     public Builder mergeFrom(com.google.container.v1.LinuxNodeConfig other) {
       if (other == com.google.container.v1.LinuxNodeConfig.getDefaultInstance()) return this;
       internalGetMutableSysctls().mergeFrom(other.internalGetSysctls());
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -607,17 +546,42 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.LinuxNodeConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.protobuf.MapEntry sysctls__ =
+                    input.readMessage(
+                        SysctlsDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableSysctls()
+                    .getMutableMap()
+                    .put(sysctls__.getKey(), sysctls__.getValue());
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.LinuxNodeConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -904,7 +868,18 @@ public LinuxNodeConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new LinuxNodeConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersRequest.java
index 4ceb7e23..6f630a58 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersRequest.java
@@ -54,66 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListClustersRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ListClustersRequest_descriptor;
@@ -143,7 +83,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListClustersRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2473
+   *     google/container/v1/cluster_service.proto;l=2486
    * @return The projectId.
    */
   @java.lang.Override
@@ -171,7 +111,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListClustersRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2473
+   *     google/container/v1/cluster_service.proto;l=2486
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -203,7 +143,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListClustersRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2479
+   *     google/container/v1/cluster_service.proto;l=2492
    * @return The zone.
    */
   @java.lang.Override
@@ -232,7 +172,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListClustersRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2479
+   *     google/container/v1/cluster_service.proto;l=2492
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -325,7 +265,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -343,7 +283,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -362,7 +302,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getProjectId().equals(other.getProjectId())) return false;
     if (!getZone().equals(other.getZone())) return false;
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -379,7 +319,7 @@ public int hashCode() {
     hash = (53 * hash) + getZone().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -508,17 +448,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ListClustersRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -621,7 +554,7 @@ public Builder mergeFrom(com.google.container.v1.ListClustersRequest other) {
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -636,17 +569,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ListClustersRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 34:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ListClustersRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -663,7 +628,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListClustersRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2473
+     *     google/container/v1/cluster_service.proto;l=2486
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -690,7 +655,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListClustersRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2473
+     *     google/container/v1/cluster_service.proto;l=2486
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -717,7 +682,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListClustersRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2473
+     *     google/container/v1/cluster_service.proto;l=2486
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -743,7 +708,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListClustersRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2473
+     *     google/container/v1/cluster_service.proto;l=2486
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -765,7 +730,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListClustersRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2473
+     *     google/container/v1/cluster_service.proto;l=2486
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -795,7 +760,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListClustersRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2479
+     *     google/container/v1/cluster_service.proto;l=2492
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -823,7 +788,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListClustersRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2479
+     *     google/container/v1/cluster_service.proto;l=2492
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -851,7 +816,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListClustersRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2479
+     *     google/container/v1/cluster_service.proto;l=2492
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -878,7 +843,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListClustersRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2479
+     *     google/container/v1/cluster_service.proto;l=2492
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -901,7 +866,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListClustersRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2479
+     *     google/container/v1/cluster_service.proto;l=2492
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1065,7 +1030,18 @@ public ListClustersRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListClustersRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersRequestOrBuilder.java
index 9b84f8b2..52c504de 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface ListClustersRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListClustersRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2473
+   *     google/container/v1/cluster_service.proto;l=2486
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface ListClustersRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListClustersRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2473
+   *     google/container/v1/cluster_service.proto;l=2486
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface ListClustersRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListClustersRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2479
+   *     google/container/v1/cluster_service.proto;l=2492
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface ListClustersRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListClustersRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2479
+   *     google/container/v1/cluster_service.proto;l=2492
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersResponse.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersResponse.java
index 24ca8dc9..ad359a58 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersResponse.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListClustersResponse.java
@@ -53,72 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListClustersResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                clusters_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              clusters_.add(
-                  input.readMessage(com.google.container.v1.Cluster.parser(), extensionRegistry));
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                missingZones_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              missingZones_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        clusters_ = java.util.Collections.unmodifiableList(clusters_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        missingZones_ = missingZones_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ListClustersResponse_descriptor;
@@ -293,7 +227,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < missingZones_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, missingZones_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -313,7 +247,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getMissingZonesList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -331,7 +265,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getClustersList().equals(other.getClustersList())) return false;
     if (!getMissingZonesList().equals(other.getMissingZonesList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -350,7 +284,7 @@ public int hashCode() {
       hash = (37 * hash) + MISSING_ZONES_FIELD_NUMBER;
       hash = (53 * hash) + getMissingZonesList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -479,19 +413,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ListClustersResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getClustersFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -499,10 +424,11 @@ public Builder clear() {
       super.clear();
       if (clustersBuilder_ == null) {
         clusters_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        clusters_ = null;
         clustersBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       missingZones_ = com.google.protobuf.LazyStringArrayList.EMPTY;
       bitField0_ = (bitField0_ & ~0x00000002);
       return this;
@@ -633,7 +559,7 @@ public Builder mergeFrom(com.google.container.v1.ListClustersResponse other) {
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -648,17 +574,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ListClustersResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1.Cluster m =
+                    input.readMessage(com.google.container.v1.Cluster.parser(), extensionRegistry);
+                if (clustersBuilder_ == null) {
+                  ensureClustersIsMutable();
+                  clusters_.add(m);
+                } else {
+                  clustersBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureMissingZonesIsMutable();
+                missingZones_.add(s);
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ListClustersResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1237,7 +1196,18 @@ public ListClustersResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListClustersResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsRequest.java
index 2658feb3..cd8ee973 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListNodePoolsRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ListNodePoolsRequest_descriptor;
@@ -151,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2680
+   *     google/container/v1/cluster_service.proto;l=2693
    * @return The projectId.
    */
   @java.lang.Override
@@ -179,7 +112,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2680
+   *     google/container/v1/cluster_service.proto;l=2693
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -211,7 +144,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2686
+   *     google/container/v1/cluster_service.proto;l=2699
    * @return The zone.
    */
   @java.lang.Override
@@ -240,7 +173,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2686
+   *     google/container/v1/cluster_service.proto;l=2699
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -270,7 +203,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2690
+   *     google/container/v1/cluster_service.proto;l=2703
    * @return The clusterId.
    */
   @java.lang.Override
@@ -297,7 +230,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2690
+   *     google/container/v1/cluster_service.proto;l=2703
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -391,7 +324,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -412,7 +345,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -432,7 +365,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -451,7 +384,7 @@ public int hashCode() {
     hash = (53 * hash) + getClusterId().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -580,17 +513,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ListNodePoolsRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -700,7 +626,7 @@ public Builder mergeFrom(com.google.container.v1.ListNodePoolsRequest other) {
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -715,17 +641,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ListNodePoolsRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 42:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ListNodePoolsRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -742,7 +706,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2680
+     *     google/container/v1/cluster_service.proto;l=2693
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -769,7 +733,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2680
+     *     google/container/v1/cluster_service.proto;l=2693
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -796,7 +760,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2680
+     *     google/container/v1/cluster_service.proto;l=2693
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -822,7 +786,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2680
+     *     google/container/v1/cluster_service.proto;l=2693
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -844,7 +808,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2680
+     *     google/container/v1/cluster_service.proto;l=2693
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -874,7 +838,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2686
+     *     google/container/v1/cluster_service.proto;l=2699
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -902,7 +866,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2686
+     *     google/container/v1/cluster_service.proto;l=2699
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -930,7 +894,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2686
+     *     google/container/v1/cluster_service.proto;l=2699
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -957,7 +921,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2686
+     *     google/container/v1/cluster_service.proto;l=2699
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -980,7 +944,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2686
+     *     google/container/v1/cluster_service.proto;l=2699
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1008,7 +972,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2690
+     *     google/container/v1/cluster_service.proto;l=2703
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1034,7 +998,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2690
+     *     google/container/v1/cluster_service.proto;l=2703
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1060,7 +1024,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2690
+     *     google/container/v1/cluster_service.proto;l=2703
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1085,7 +1049,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2690
+     *     google/container/v1/cluster_service.proto;l=2703
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1106,7 +1070,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.ListNodePoolsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2690
+     *     google/container/v1/cluster_service.proto;l=2703
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1265,7 +1229,18 @@ public ListNodePoolsRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListNodePoolsRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsRequestOrBuilder.java
index 7c999499..23e52d2c 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface ListNodePoolsRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2680
+   *     google/container/v1/cluster_service.proto;l=2693
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface ListNodePoolsRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2680
+   *     google/container/v1/cluster_service.proto;l=2693
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface ListNodePoolsRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2686
+   *     google/container/v1/cluster_service.proto;l=2699
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface ListNodePoolsRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2686
+   *     google/container/v1/cluster_service.proto;l=2699
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface ListNodePoolsRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2690
+   *     google/container/v1/cluster_service.proto;l=2703
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface ListNodePoolsRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.ListNodePoolsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2690
+   *     google/container/v1/cluster_service.proto;l=2703
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsResponse.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsResponse.java
index 34ab4ef5..01e7e398 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsResponse.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListNodePoolsResponse.java
@@ -52,59 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListNodePoolsResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                nodePools_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              nodePools_.add(
-                  input.readMessage(com.google.container.v1.NodePool.parser(), extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        nodePools_ = java.util.Collections.unmodifiableList(nodePools_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ListNodePoolsResponse_descriptor;
@@ -206,7 +153,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < nodePools_.size(); i++) {
       output.writeMessage(1, nodePools_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -218,7 +165,7 @@ public int getSerializedSize() {
     for (int i = 0; i < nodePools_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, nodePools_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -235,7 +182,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.ListNodePoolsResponse) obj;
 
     if (!getNodePoolsList().equals(other.getNodePoolsList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -250,7 +197,7 @@ public int hashCode() {
       hash = (37 * hash) + NODE_POOLS_FIELD_NUMBER;
       hash = (53 * hash) + getNodePoolsList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -379,19 +326,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ListNodePoolsResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getNodePoolsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -399,10 +337,11 @@ public Builder clear() {
       super.clear();
       if (nodePoolsBuilder_ == null) {
         nodePools_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        nodePools_ = null;
         nodePoolsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       return this;
     }
 
@@ -516,7 +455,7 @@ public Builder mergeFrom(com.google.container.v1.ListNodePoolsResponse other) {
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -531,17 +470,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ListNodePoolsResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1.NodePool m =
+                    input.readMessage(com.google.container.v1.NodePool.parser(), extensionRegistry);
+                if (nodePoolsBuilder_ == null) {
+                  ensureNodePoolsIsMutable();
+                  nodePools_.add(m);
+                } else {
+                  nodePoolsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ListNodePoolsResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -927,7 +892,18 @@ public ListNodePoolsResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListNodePoolsResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsRequest.java
index 752d5292..82e2240d 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsRequest.java
@@ -54,66 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListOperationsRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ListOperationsRequest_descriptor;
@@ -143,7 +83,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListOperationsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2525
+   *     google/container/v1/cluster_service.proto;l=2538
    * @return The projectId.
    */
   @java.lang.Override
@@ -171,7 +111,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListOperationsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2525
+   *     google/container/v1/cluster_service.proto;l=2538
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -203,7 +143,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListOperationsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2531
+   *     google/container/v1/cluster_service.proto;l=2544
    * @return The zone.
    */
   @java.lang.Override
@@ -232,7 +172,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListOperationsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2531
+   *     google/container/v1/cluster_service.proto;l=2544
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -325,7 +265,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -343,7 +283,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -362,7 +302,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getProjectId().equals(other.getProjectId())) return false;
     if (!getZone().equals(other.getZone())) return false;
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -379,7 +319,7 @@ public int hashCode() {
     hash = (53 * hash) + getZone().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -508,17 +448,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ListOperationsRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -621,7 +554,7 @@ public Builder mergeFrom(com.google.container.v1.ListOperationsRequest other) {
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -636,17 +569,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ListOperationsRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 34:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ListOperationsRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -663,7 +628,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListOperationsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2525
+     *     google/container/v1/cluster_service.proto;l=2538
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -690,7 +655,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListOperationsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2525
+     *     google/container/v1/cluster_service.proto;l=2538
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -717,7 +682,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListOperationsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2525
+     *     google/container/v1/cluster_service.proto;l=2538
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -743,7 +708,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListOperationsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2525
+     *     google/container/v1/cluster_service.proto;l=2538
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -765,7 +730,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.ListOperationsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2525
+     *     google/container/v1/cluster_service.proto;l=2538
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -795,7 +760,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListOperationsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2531
+     *     google/container/v1/cluster_service.proto;l=2544
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -823,7 +788,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListOperationsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2531
+     *     google/container/v1/cluster_service.proto;l=2544
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -851,7 +816,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListOperationsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2531
+     *     google/container/v1/cluster_service.proto;l=2544
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -878,7 +843,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListOperationsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2531
+     *     google/container/v1/cluster_service.proto;l=2544
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -901,7 +866,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.ListOperationsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2531
+     *     google/container/v1/cluster_service.proto;l=2544
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1065,7 +1030,18 @@ public ListOperationsRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListOperationsRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsRequestOrBuilder.java
index 09791bb4..024d3ab7 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface ListOperationsRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListOperationsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2525
+   *     google/container/v1/cluster_service.proto;l=2538
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface ListOperationsRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.ListOperationsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2525
+   *     google/container/v1/cluster_service.proto;l=2538
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface ListOperationsRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListOperationsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2531
+   *     google/container/v1/cluster_service.proto;l=2544
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface ListOperationsRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.ListOperationsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2531
+   *     google/container/v1/cluster_service.proto;l=2544
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsResponse.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsResponse.java
index 5b1bab0b..3cf7a437 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsResponse.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListOperationsResponse.java
@@ -53,72 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListOperationsResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                operations_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              operations_.add(
-                  input.readMessage(com.google.container.v1.Operation.parser(), extensionRegistry));
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                missingZones_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              missingZones_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        operations_ = java.util.Collections.unmodifiableList(operations_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        missingZones_ = missingZones_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ListOperationsResponse_descriptor;
@@ -288,7 +222,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < missingZones_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, missingZones_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -308,7 +242,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getMissingZonesList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -326,7 +260,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getOperationsList().equals(other.getOperationsList())) return false;
     if (!getMissingZonesList().equals(other.getMissingZonesList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -345,7 +279,7 @@ public int hashCode() {
       hash = (37 * hash) + MISSING_ZONES_FIELD_NUMBER;
       hash = (53 * hash) + getMissingZonesList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -474,19 +408,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ListOperationsResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getOperationsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -494,10 +419,11 @@ public Builder clear() {
       super.clear();
       if (operationsBuilder_ == null) {
         operations_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        operations_ = null;
         operationsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       missingZones_ = com.google.protobuf.LazyStringArrayList.EMPTY;
       bitField0_ = (bitField0_ & ~0x00000002);
       return this;
@@ -628,7 +554,7 @@ public Builder mergeFrom(com.google.container.v1.ListOperationsResponse other) {
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -643,17 +569,51 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ListOperationsResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1.Operation m =
+                    input.readMessage(
+                        com.google.container.v1.Operation.parser(), extensionRegistry);
+                if (operationsBuilder_ == null) {
+                  ensureOperationsIsMutable();
+                  operations_.add(m);
+                } else {
+                  operationsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureMissingZonesIsMutable();
+                missingZones_.add(s);
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ListOperationsResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1216,7 +1176,18 @@ public ListOperationsResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListOperationsResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListUsableSubnetworksRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListUsableSubnetworksRequest.java
index c6578e42..7361cff7 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListUsableSubnetworksRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListUsableSubnetworksRequest.java
@@ -55,71 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListUsableSubnetworksRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              filter_ = s;
-              break;
-            }
-          case 24:
-            {
-              pageSize_ = input.readInt32();
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              pageToken_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ListUsableSubnetworksRequest_descriptor;
@@ -339,7 +274,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, pageToken_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -360,7 +295,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, pageToken_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -380,7 +315,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getFilter().equals(other.getFilter())) return false;
     if (getPageSize() != other.getPageSize()) return false;
     if (!getPageToken().equals(other.getPageToken())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -399,7 +334,7 @@ public int hashCode() {
     hash = (53 * hash) + getPageSize();
     hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
     hash = (53 * hash) + getPageToken().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -529,17 +464,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ListUsableSubnetworksRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -649,7 +577,7 @@ public Builder mergeFrom(com.google.container.v1.ListUsableSubnetworksRequest ot
         pageToken_ = other.pageToken_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -664,18 +592,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ListUsableSubnetworksRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                filter_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                pageSize_ = input.readInt32();
+
+                break;
+              } // case 24
+            case 34:
+              {
+                pageToken_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.ListUsableSubnetworksRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1115,7 +1080,18 @@ public ListUsableSubnetworksRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListUsableSubnetworksRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListUsableSubnetworksResponse.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListUsableSubnetworksResponse.java
index 3b8fc037..2aba78b9 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListUsableSubnetworksResponse.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ListUsableSubnetworksResponse.java
@@ -54,67 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListUsableSubnetworksResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                subnetworks_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              subnetworks_.add(
-                  input.readMessage(
-                      com.google.container.v1.UsableSubnetwork.parser(), extensionRegistry));
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nextPageToken_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        subnetworks_ = java.util.Collections.unmodifiableList(subnetworks_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ListUsableSubnetworksResponse_descriptor;
@@ -274,7 +213,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -289,7 +228,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -307,7 +246,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getSubnetworksList().equals(other.getSubnetworksList())) return false;
     if (!getNextPageToken().equals(other.getNextPageToken())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -324,7 +263,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
     hash = (53 * hash) + getNextPageToken().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -455,19 +394,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ListUsableSubnetworksResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getSubnetworksFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -475,10 +405,11 @@ public Builder clear() {
       super.clear();
       if (subnetworksBuilder_ == null) {
         subnetworks_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        subnetworks_ = null;
         subnetworksBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       nextPageToken_ = "";
 
       return this;
@@ -600,7 +531,7 @@ public Builder mergeFrom(com.google.container.v1.ListUsableSubnetworksResponse o
         nextPageToken_ = other.nextPageToken_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -615,18 +546,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ListUsableSubnetworksResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1.UsableSubnetwork m =
+                    input.readMessage(
+                        com.google.container.v1.UsableSubnetwork.parser(), extensionRegistry);
+                if (subnetworksBuilder_ == null) {
+                  ensureSubnetworksIsMutable();
+                  subnetworks_.add(m);
+                } else {
+                  subnetworksBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            case 18:
+              {
+                nextPageToken_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.ListUsableSubnetworksResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1136,7 +1099,18 @@ public ListUsableSubnetworksResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListUsableSubnetworksResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingComponentConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingComponentConfig.java
index 764a5fea..fd2ec948 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingComponentConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingComponentConfig.java
@@ -52,74 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private LoggingComponentConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                enableComponents_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              enableComponents_.add(rawValue);
-              break;
-            }
-          case 10:
-            {
-              int length = input.readRawVarint32();
-              int oldLimit = input.pushLimit(length);
-              while (input.getBytesUntilLimit() > 0) {
-                int rawValue = input.readEnum();
-                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                  enableComponents_ = new java.util.ArrayList();
-                  mutable_bitField0_ |= 0x00000001;
-                }
-                enableComponents_.add(rawValue);
-              }
-              input.popLimit(oldLimit);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        enableComponents_ = java.util.Collections.unmodifiableList(enableComponents_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_LoggingComponentConfig_descriptor;
@@ -419,7 +351,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < enableComponents_.size(); i++) {
       output.writeEnumNoTag(enableComponents_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -441,7 +373,7 @@ public int getSerializedSize() {
       }
       enableComponentsMemoizedSerializedSize = dataSize;
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -458,7 +390,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.LoggingComponentConfig) obj;
 
     if (!enableComponents_.equals(other.enableComponents_)) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -473,7 +405,7 @@ public int hashCode() {
       hash = (37 * hash) + ENABLE_COMPONENTS_FIELD_NUMBER;
       hash = (53 * hash) + enableComponents_.hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -602,17 +534,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.LoggingComponentConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -712,7 +637,7 @@ public Builder mergeFrom(com.google.container.v1.LoggingComponentConfig other) {
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -727,17 +652,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.LoggingComponentConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                int tmpRaw = input.readEnum();
+                ensureEnableComponentsIsMutable();
+                enableComponents_.add(tmpRaw);
+                break;
+              } // case 8
+            case 10:
+              {
+                int length = input.readRawVarint32();
+                int oldLimit = input.pushLimit(length);
+                while (input.getBytesUntilLimit() > 0) {
+                  int tmpRaw = input.readEnum();
+                  ensureEnableComponentsIsMutable();
+                  enableComponents_.add(tmpRaw);
+                }
+                input.popLimit(oldLimit);
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.LoggingComponentConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1012,7 +970,18 @@ public LoggingComponentConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new LoggingComponentConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingConfig.java
index 9f65944a..c855dd25 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingConfig.java
@@ -50,61 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private LoggingConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.LoggingComponentConfig.Builder subBuilder = null;
-              if (componentConfig_ != null) {
-                subBuilder = componentConfig_.toBuilder();
-              }
-              componentConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.LoggingComponentConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(componentConfig_);
-                componentConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_LoggingConfig_descriptor;
@@ -185,7 +130,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (componentConfig_ != null) {
       output.writeMessage(1, getComponentConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -197,7 +142,7 @@ public int getSerializedSize() {
     if (componentConfig_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getComponentConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -216,7 +161,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasComponentConfig()) {
       if (!getComponentConfig().equals(other.getComponentConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -231,7 +176,7 @@ public int hashCode() {
       hash = (37 * hash) + COMPONENT_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getComponentConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -359,17 +304,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.LoggingConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -465,7 +403,7 @@ public Builder mergeFrom(com.google.container.v1.LoggingConfig other) {
       if (other.hasComponentConfig()) {
         mergeComponentConfig(other.getComponentConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -480,17 +418,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.LoggingConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getComponentConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.LoggingConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -712,7 +670,18 @@ public LoggingConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new LoggingConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingVariantConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingVariantConfig.java
new file mode 100644
index 00000000..79051db1
--- /dev/null
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingVariantConfig.java
@@ -0,0 +1,748 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/container/v1/cluster_service.proto
+
+package com.google.container.v1;
+
+/**
+ *
+ *
+ * 
+ * LoggingVariantConfig specifies the behaviour of the logging component.
+ * 

+ *
+ * Protobuf type {@code google.container.v1.LoggingVariantConfig}
+ */
+public final class LoggingVariantConfig extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.container.v1.LoggingVariantConfig)
+    LoggingVariantConfigOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use LoggingVariantConfig.newBuilder() to construct.
+  private LoggingVariantConfig(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private LoggingVariantConfig() {
+    variant_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new LoggingVariantConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.container.v1.ClusterServiceProto
+        .internal_static_google_container_v1_LoggingVariantConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.container.v1.ClusterServiceProto
+        .internal_static_google_container_v1_LoggingVariantConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.container.v1.LoggingVariantConfig.class,
+            com.google.container.v1.LoggingVariantConfig.Builder.class);
+  }
+
+  /**
+   *
+   *
+   * 
+   * Logging component variants.
+   * 

+   *
+   * Protobuf enum {@code google.container.v1.LoggingVariantConfig.Variant}
+   */
+  public enum Variant implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * 
+     * Default value. This shouldn't be used.
+     * 

+     *
+     * VARIANT_UNSPECIFIED = 0;
+     */
+    VARIANT_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * 
+     * default logging variant.
+     * 

+     *
+     * DEFAULT = 1;
+     */
+    DEFAULT(1),
+    /**
+     *
+     *
+     * 
+     * maximum logging throughput variant.
+     * 

+     *
+     * MAX_THROUGHPUT = 2;
+     */
+    MAX_THROUGHPUT(2),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * 
+     * Default value. This shouldn't be used.
+     * 

+     *
+     * VARIANT_UNSPECIFIED = 0;
+     */
+    public static final int VARIANT_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * 
+     * default logging variant.
+     * 

+     *
+     * DEFAULT = 1;
+     */
+    public static final int DEFAULT_VALUE = 1;
+    /**
+     *
+     *
+     * 
+     * maximum logging throughput variant.
+     * 

+     *
+     * MAX_THROUGHPUT = 2;
+     */
+    public static final int MAX_THROUGHPUT_VALUE = 2;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static Variant valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static Variant forNumber(int value) {
+      switch (value) {
+        case 0:
+          return VARIANT_UNSPECIFIED;
+        case 1:
+          return DEFAULT;
+        case 2:
+          return MAX_THROUGHPUT;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap internalValueMap =
+        new com.google.protobuf.Internal.EnumLiteMap() {
+          public Variant findValueByNumber(int number) {
+            return Variant.forNumber(number);
+          }
+        };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.container.v1.LoggingVariantConfig.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final Variant[] VALUES = values();
+
+    public static Variant valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private Variant(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.container.v1.LoggingVariantConfig.Variant)
+  }
+
+  public static final int VARIANT_FIELD_NUMBER = 1;
+  private int variant_;
+  /**
+   *
+   *
+   * 
+   * Logging variant deployed on nodes.
+   * 

+   *
+   * .google.container.v1.LoggingVariantConfig.Variant variant = 1;
+   *
+   * @return The enum numeric value on the wire for variant.
+   */
+  @java.lang.Override
+  public int getVariantValue() {
+    return variant_;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging variant deployed on nodes.
+   * 

+   *
+   * .google.container.v1.LoggingVariantConfig.Variant variant = 1;
+   *
+   * @return The variant.
+   */
+  @java.lang.Override
+  public com.google.container.v1.LoggingVariantConfig.Variant getVariant() {
+    @SuppressWarnings("deprecation")
+    com.google.container.v1.LoggingVariantConfig.Variant result =
+        com.google.container.v1.LoggingVariantConfig.Variant.valueOf(variant_);
+    return result == null
+        ? com.google.container.v1.LoggingVariantConfig.Variant.UNRECOGNIZED
+        : result;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (variant_
+        != com.google.container.v1.LoggingVariantConfig.Variant.VARIANT_UNSPECIFIED.getNumber()) {
+      output.writeEnum(1, variant_);
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (variant_
+        != com.google.container.v1.LoggingVariantConfig.Variant.VARIANT_UNSPECIFIED.getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, variant_);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.container.v1.LoggingVariantConfig)) {
+      return super.equals(obj);
+    }
+    com.google.container.v1.LoggingVariantConfig other =
+        (com.google.container.v1.LoggingVariantConfig) obj;
+
+    if (variant_ != other.variant_) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + VARIANT_FIELD_NUMBER;
+    hash = (53 * hash) + variant_;
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.container.v1.LoggingVariantConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * LoggingVariantConfig specifies the behaviour of the logging component.
+   * 

+   *
+   * Protobuf type {@code google.container.v1.LoggingVariantConfig}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.container.v1.LoggingVariantConfig)
+      com.google.container.v1.LoggingVariantConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.container.v1.ClusterServiceProto
+          .internal_static_google_container_v1_LoggingVariantConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.container.v1.ClusterServiceProto
+          .internal_static_google_container_v1_LoggingVariantConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.container.v1.LoggingVariantConfig.class,
+              com.google.container.v1.LoggingVariantConfig.Builder.class);
+    }
+
+    // Construct using com.google.container.v1.LoggingVariantConfig.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      variant_ = 0;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.container.v1.ClusterServiceProto
+          .internal_static_google_container_v1_LoggingVariantConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.container.v1.LoggingVariantConfig getDefaultInstanceForType() {
+      return com.google.container.v1.LoggingVariantConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.container.v1.LoggingVariantConfig build() {
+      com.google.container.v1.LoggingVariantConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.container.v1.LoggingVariantConfig buildPartial() {
+      com.google.container.v1.LoggingVariantConfig result =
+          new com.google.container.v1.LoggingVariantConfig(this);
+      result.variant_ = variant_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.container.v1.LoggingVariantConfig) {
+        return mergeFrom((com.google.container.v1.LoggingVariantConfig) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.container.v1.LoggingVariantConfig other) {
+      if (other == com.google.container.v1.LoggingVariantConfig.getDefaultInstance()) return this;
+      if (other.variant_ != 0) {
+        setVariantValue(other.getVariantValue());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                variant_ = input.readEnum();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int variant_ = 0;
+    /**
+     *
+     *
+     * 
+     * Logging variant deployed on nodes.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig.Variant variant = 1;
+     *
+     * @return The enum numeric value on the wire for variant.
+     */
+    @java.lang.Override
+    public int getVariantValue() {
+      return variant_;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant deployed on nodes.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig.Variant variant = 1;
+     *
+     * @param value The enum numeric value on the wire for variant to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVariantValue(int value) {
+
+      variant_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant deployed on nodes.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig.Variant variant = 1;
+     *
+     * @return The variant.
+     */
+    @java.lang.Override
+    public com.google.container.v1.LoggingVariantConfig.Variant getVariant() {
+      @SuppressWarnings("deprecation")
+      com.google.container.v1.LoggingVariantConfig.Variant result =
+          com.google.container.v1.LoggingVariantConfig.Variant.valueOf(variant_);
+      return result == null
+          ? com.google.container.v1.LoggingVariantConfig.Variant.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant deployed on nodes.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig.Variant variant = 1;
+     *
+     * @param value The variant to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVariant(com.google.container.v1.LoggingVariantConfig.Variant value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      variant_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant deployed on nodes.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig.Variant variant = 1;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearVariant() {
+
+      variant_ = 0;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.container.v1.LoggingVariantConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.container.v1.LoggingVariantConfig)
+  private static final com.google.container.v1.LoggingVariantConfig DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.container.v1.LoggingVariantConfig();
+  }
+
+  public static com.google.container.v1.LoggingVariantConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public LoggingVariantConfig parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.container.v1.LoggingVariantConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingVariantConfigOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingVariantConfigOrBuilder.java
new file mode 100644
index 00000000..a32f194b
--- /dev/null
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/LoggingVariantConfigOrBuilder.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/container/v1/cluster_service.proto
+
+package com.google.container.v1;
+
+public interface LoggingVariantConfigOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.container.v1.LoggingVariantConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Logging variant deployed on nodes.
+   * 

+   *
+   * .google.container.v1.LoggingVariantConfig.Variant variant = 1;
+   *
+   * @return The enum numeric value on the wire for variant.
+   */
+  int getVariantValue();
+  /**
+   *
+   *
+   * 
+   * Logging variant deployed on nodes.
+   * 

+   *
+   * .google.container.v1.LoggingVariantConfig.Variant variant = 1;
+   *
+   * @return The variant.
+   */
+  com.google.container.v1.LoggingVariantConfig.Variant getVariant();
+}
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenanceExclusionOptions.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenanceExclusionOptions.java
index d14da7e3..2bedf6fc 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenanceExclusionOptions.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenanceExclusionOptions.java
@@ -52,52 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MaintenanceExclusionOptions(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              scope_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_MaintenanceExclusionOptions_descriptor;
@@ -340,7 +294,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         != com.google.container.v1.MaintenanceExclusionOptions.Scope.NO_UPGRADES.getNumber()) {
       output.writeEnum(1, scope_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -353,7 +307,7 @@ public int getSerializedSize() {
         != com.google.container.v1.MaintenanceExclusionOptions.Scope.NO_UPGRADES.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, scope_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -370,7 +324,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.MaintenanceExclusionOptions) obj;
 
     if (scope_ != other.scope_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -383,7 +337,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + SCOPE_FIELD_NUMBER;
     hash = (53 * hash) + scope_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -512,17 +466,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.MaintenanceExclusionOptions.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -611,7 +558,7 @@ public Builder mergeFrom(com.google.container.v1.MaintenanceExclusionOptions oth
       if (other.scope_ != 0) {
         setScopeValue(other.getScopeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -626,18 +573,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.MaintenanceExclusionOptions parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                scope_ = input.readEnum();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.MaintenanceExclusionOptions) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -771,7 +737,18 @@ public MaintenanceExclusionOptions parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MaintenanceExclusionOptions(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenancePolicy.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenancePolicy.java
index 7d1b318d..875f4456 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenancePolicy.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenancePolicy.java
@@ -52,68 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MaintenancePolicy(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.MaintenanceWindow.Builder subBuilder = null;
-              if (window_ != null) {
-                subBuilder = window_.toBuilder();
-              }
-              window_ =
-                  input.readMessage(
-                      com.google.container.v1.MaintenanceWindow.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(window_);
-                window_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              resourceVersion_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_MaintenancePolicy_descriptor;
@@ -254,7 +192,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resourceVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, resourceVersion_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -269,7 +207,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resourceVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, resourceVersion_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -290,7 +228,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getWindow().equals(other.getWindow())) return false;
     }
     if (!getResourceVersion().equals(other.getResourceVersion())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -307,7 +245,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + RESOURCE_VERSION_FIELD_NUMBER;
     hash = (53 * hash) + getResourceVersion().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -436,17 +374,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.MaintenancePolicy.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -549,7 +480,7 @@ public Builder mergeFrom(com.google.container.v1.MaintenancePolicy other) {
         resourceVersion_ = other.resourceVersion_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -564,17 +495,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.MaintenancePolicy parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getWindowFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 26:
+              {
+                resourceVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.MaintenancePolicy) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -921,7 +878,18 @@ public MaintenancePolicy parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MaintenancePolicy(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenanceWindow.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenanceWindow.java
index 10406d1a..c0fe9c91 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenanceWindow.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaintenanceWindow.java
@@ -50,96 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MaintenanceWindow(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 18:
-            {
-              com.google.container.v1.DailyMaintenanceWindow.Builder subBuilder = null;
-              if (policyCase_ == 2) {
-                subBuilder = ((com.google.container.v1.DailyMaintenanceWindow) policy_).toBuilder();
-              }
-              policy_ =
-                  input.readMessage(
-                      com.google.container.v1.DailyMaintenanceWindow.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((com.google.container.v1.DailyMaintenanceWindow) policy_);
-                policy_ = subBuilder.buildPartial();
-              }
-              policyCase_ = 2;
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1.RecurringTimeWindow.Builder subBuilder = null;
-              if (policyCase_ == 3) {
-                subBuilder = ((com.google.container.v1.RecurringTimeWindow) policy_).toBuilder();
-              }
-              policy_ =
-                  input.readMessage(
-                      com.google.container.v1.RecurringTimeWindow.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((com.google.container.v1.RecurringTimeWindow) policy_);
-                policy_ = subBuilder.buildPartial();
-              }
-              policyCase_ = 3;
-              break;
-            }
-          case 34:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                maintenanceExclusions_ =
-                    com.google.protobuf.MapField.newMapField(
-                        MaintenanceExclusionsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000001;
-              }
-              com.google.protobuf.MapEntry
-                  maintenanceExclusions__ =
-                      input.readMessage(
-                          MaintenanceExclusionsDefaultEntryHolder.defaultEntry.getParserForType(),
-                          extensionRegistry);
-              maintenanceExclusions_
-                  .getMutableMap()
-                  .put(maintenanceExclusions__.getKey(), maintenanceExclusions__.getValue());
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_MaintenanceWindow_descriptor;
@@ -459,7 +369,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         internalGetMaintenanceExclusions(),
         MaintenanceExclusionsDefaultEntryHolder.defaultEntry,
         4);
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -489,7 +399,7 @@ public int getSerializedSize() {
                   .build();
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, maintenanceExclusions__);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -518,7 +428,7 @@ public boolean equals(final java.lang.Object obj) {
       case 0:
       default:
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -545,7 +455,7 @@ public int hashCode() {
       case 0:
       default:
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -694,22 +604,21 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1.MaintenanceWindow.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
     public Builder clear() {
       super.clear();
+      if (dailyMaintenanceWindowBuilder_ != null) {
+        dailyMaintenanceWindowBuilder_.clear();
+      }
+      if (recurringWindowBuilder_ != null) {
+        recurringWindowBuilder_.clear();
+      }
       internalGetMutableMaintenanceExclusions().clear();
       policyCase_ = 0;
       policy_ = null;
@@ -824,7 +733,7 @@ public Builder mergeFrom(com.google.container.v1.MaintenanceWindow other) {
             break;
           }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -839,17 +748,56 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.MaintenanceWindow parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 18:
+              {
+                input.readMessage(
+                    getDailyMaintenanceWindowFieldBuilder().getBuilder(), extensionRegistry);
+                policyCase_ = 2;
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(getRecurringWindowFieldBuilder().getBuilder(), extensionRegistry);
+                policyCase_ = 3;
+                break;
+              } // case 26
+            case 34:
+              {
+                com.google.protobuf.MapEntry
+                    maintenanceExclusions__ =
+                        input.readMessage(
+                            MaintenanceExclusionsDefaultEntryHolder.defaultEntry.getParserForType(),
+                            extensionRegistry);
+                internalGetMutableMaintenanceExclusions()
+                    .getMutableMap()
+                    .put(maintenanceExclusions__.getKey(), maintenanceExclusions__.getValue());
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.MaintenanceWindow) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1520,7 +1468,18 @@ public MaintenanceWindow parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MaintenanceWindow(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ManagedPrometheusConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ManagedPrometheusConfig.java
index 3f3eaa8b..b41aabd2 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ManagedPrometheusConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ManagedPrometheusConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ManagedPrometheusConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ManagedPrometheusConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.ManagedPrometheusConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ManagedPrometheusConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -416,7 +365,7 @@ public Builder mergeFrom(com.google.container.v1.ManagedPrometheusConfig other)
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -431,17 +380,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ManagedPrometheusConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ManagedPrometheusConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -529,7 +498,18 @@ public ManagedPrometheusConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ManagedPrometheusConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuth.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuth.java
index 5a1378f4..8969c89d 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuth.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuth.java
@@ -58,96 +58,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MasterAuth(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              username_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              password_ = s;
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1.ClientCertificateConfig.Builder subBuilder = null;
-              if (clientCertificateConfig_ != null) {
-                subBuilder = clientCertificateConfig_.toBuilder();
-              }
-              clientCertificateConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.ClientCertificateConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(clientCertificateConfig_);
-                clientCertificateConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 802:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterCaCertificate_ = s;
-              break;
-            }
-          case 810:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clientCertificate_ = s;
-              break;
-            }
-          case 818:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clientKey_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_MasterAuth_descriptor;
@@ -181,7 +91,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string username = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.MasterAuth.username is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=951
+   *     google/container/v1/cluster_service.proto;l=955
    * @return The username.
    */
   @java.lang.Override
@@ -213,7 +123,7 @@ public java.lang.String getUsername() {
    * string username = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.MasterAuth.username is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=951
+   *     google/container/v1/cluster_service.proto;l=955
    * @return The bytes for username.
    */
   @java.lang.Override
@@ -249,7 +159,7 @@ public com.google.protobuf.ByteString getUsernameBytes() {
    * string password = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.MasterAuth.password is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=962
+   *     google/container/v1/cluster_service.proto;l=966
    * @return The password.
    */
   @java.lang.Override
@@ -282,7 +192,7 @@ public java.lang.String getPassword() {
    * string password = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.MasterAuth.password is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=962
+   *     google/container/v1/cluster_service.proto;l=966
    * @return The bytes for password.
    */
   @java.lang.Override
@@ -539,7 +449,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientKey_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 102, clientKey_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -567,7 +477,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientKey_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(102, clientKey_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -591,7 +501,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterCaCertificate().equals(other.getClusterCaCertificate())) return false;
     if (!getClientCertificate().equals(other.getClientCertificate())) return false;
     if (!getClientKey().equals(other.getClientKey())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -616,7 +526,7 @@ public int hashCode() {
     hash = (53 * hash) + getClientCertificate().hashCode();
     hash = (37 * hash) + CLIENT_KEY_FIELD_NUMBER;
     hash = (53 * hash) + getClientKey().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -746,17 +656,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.MasterAuth.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -886,7 +789,7 @@ public Builder mergeFrom(com.google.container.v1.MasterAuth other) {
         clientKey_ = other.clientKey_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -901,17 +804,68 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.MasterAuth parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                username_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                password_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(
+                    getClientCertificateConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 802:
+              {
+                clusterCaCertificate_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 802
+            case 810:
+              {
+                clientCertificate_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 810
+            case 818:
+              {
+                clientKey_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 818
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.MasterAuth) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -932,7 +886,7 @@ public Builder mergeFrom(
      * string username = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.MasterAuth.username is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=951
+     *     google/container/v1/cluster_service.proto;l=955
      * @return The username.
      */
     @java.lang.Deprecated
@@ -963,7 +917,7 @@ public java.lang.String getUsername() {
      * string username = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.MasterAuth.username is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=951
+     *     google/container/v1/cluster_service.proto;l=955
      * @return The bytes for username.
      */
     @java.lang.Deprecated
@@ -994,7 +948,7 @@ public com.google.protobuf.ByteString getUsernameBytes() {
      * string username = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.MasterAuth.username is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=951
+     *     google/container/v1/cluster_service.proto;l=955
      * @param value The username to set.
      * @return This builder for chaining.
      */
@@ -1024,7 +978,7 @@ public Builder setUsername(java.lang.String value) {
      * string username = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.MasterAuth.username is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=951
+     *     google/container/v1/cluster_service.proto;l=955
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1050,7 +1004,7 @@ public Builder clearUsername() {
      * string username = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.MasterAuth.username is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=951
+     *     google/container/v1/cluster_service.proto;l=955
      * @param value The bytes for username to set.
      * @return This builder for chaining.
      */
@@ -1084,7 +1038,7 @@ public Builder setUsernameBytes(com.google.protobuf.ByteString value) {
      * string password = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.MasterAuth.password is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=962
+     *     google/container/v1/cluster_service.proto;l=966
      * @return The password.
      */
     @java.lang.Deprecated
@@ -1116,7 +1070,7 @@ public java.lang.String getPassword() {
      * string password = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.MasterAuth.password is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=962
+     *     google/container/v1/cluster_service.proto;l=966
      * @return The bytes for password.
      */
     @java.lang.Deprecated
@@ -1148,7 +1102,7 @@ public com.google.protobuf.ByteString getPasswordBytes() {
      * string password = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.MasterAuth.password is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=962
+     *     google/container/v1/cluster_service.proto;l=966
      * @param value The password to set.
      * @return This builder for chaining.
      */
@@ -1179,7 +1133,7 @@ public Builder setPassword(java.lang.String value) {
      * string password = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.MasterAuth.password is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=962
+     *     google/container/v1/cluster_service.proto;l=966
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1206,7 +1160,7 @@ public Builder clearPassword() {
      * string password = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.MasterAuth.password is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=962
+     *     google/container/v1/cluster_service.proto;l=966
      * @param value The bytes for password to set.
      * @return This builder for chaining.
      */
@@ -1795,7 +1749,18 @@ public MasterAuth parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MasterAuth(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuthOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuthOrBuilder.java
index 0d3f1e78..773647b4 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuthOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuthOrBuilder.java
@@ -39,7 +39,7 @@ public interface MasterAuthOrBuilder
    * string username = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.MasterAuth.username is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=951
+   *     google/container/v1/cluster_service.proto;l=955
    * @return The username.
    */
   @java.lang.Deprecated
@@ -60,7 +60,7 @@ public interface MasterAuthOrBuilder
    * string username = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.MasterAuth.username is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=951
+   *     google/container/v1/cluster_service.proto;l=955
    * @return The bytes for username.
    */
   @java.lang.Deprecated
@@ -83,7 +83,7 @@ public interface MasterAuthOrBuilder
    * string password = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.MasterAuth.password is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=962
+   *     google/container/v1/cluster_service.proto;l=966
    * @return The password.
    */
   @java.lang.Deprecated
@@ -105,7 +105,7 @@ public interface MasterAuthOrBuilder
    * string password = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.MasterAuth.password is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=962
+   *     google/container/v1/cluster_service.proto;l=966
    * @return The bytes for password.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuthorizedNetworksConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuthorizedNetworksConfig.java
index c51f12f4..a8b8d36e 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuthorizedNetworksConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MasterAuthorizedNetworksConfig.java
@@ -56,68 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MasterAuthorizedNetworksConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 18:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                cidrBlocks_ =
-                    new java.util.ArrayList<
-                        com.google.container.v1.MasterAuthorizedNetworksConfig.CidrBlock>();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              cidrBlocks_.add(
-                  input.readMessage(
-                      com.google.container.v1.MasterAuthorizedNetworksConfig.CidrBlock.parser(),
-                      extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        cidrBlocks_ = java.util.Collections.unmodifiableList(cidrBlocks_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_MasterAuthorizedNetworksConfig_descriptor;
@@ -223,59 +161,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private CidrBlock(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                displayName_ = s;
-                break;
-              }
-            case 18:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                cidrBlock_ = s;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_MasterAuthorizedNetworksConfig_CidrBlock_descriptor;
@@ -409,7 +294,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cidrBlock_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 2, cidrBlock_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -424,7 +309,7 @@ public int getSerializedSize() {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cidrBlock_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, cidrBlock_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -442,7 +327,7 @@ public boolean equals(final java.lang.Object obj) {
 
       if (!getDisplayName().equals(other.getDisplayName())) return false;
       if (!getCidrBlock().equals(other.getCidrBlock())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -457,7 +342,7 @@ public int hashCode() {
       hash = (53 * hash) + getDisplayName().hashCode();
       hash = (37 * hash) + CIDR_BLOCK_FIELD_NUMBER;
       hash = (53 * hash) + getCidrBlock().hashCode();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -591,17 +476,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
       // Construct using
       // com.google.container.v1.MasterAuthorizedNetworksConfig.CidrBlock.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -705,7 +583,7 @@ public Builder mergeFrom(
           cidrBlock_ = other.cidrBlock_;
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -720,19 +598,43 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.MasterAuthorizedNetworksConfig.CidrBlock parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  displayName_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 10
+              case 18:
+                {
+                  cidrBlock_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 18
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1.MasterAuthorizedNetworksConfig.CidrBlock)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -983,7 +885,19 @@ public CidrBlock parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new CidrBlock(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1124,7 +1038,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < cidrBlocks_.size(); i++) {
       output.writeMessage(2, cidrBlocks_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1139,7 +1053,7 @@ public int getSerializedSize() {
     for (int i = 0; i < cidrBlocks_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, cidrBlocks_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1157,7 +1071,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getEnabled() != other.getEnabled()) return false;
     if (!getCidrBlocksList().equals(other.getCidrBlocksList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1174,7 +1088,7 @@ public int hashCode() {
       hash = (37 * hash) + CIDR_BLOCKS_FIELD_NUMBER;
       hash = (53 * hash) + getCidrBlocksList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1307,19 +1221,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.MasterAuthorizedNetworksConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getCidrBlocksFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -1329,10 +1234,11 @@ public Builder clear() {
 
       if (cidrBlocksBuilder_ == null) {
         cidrBlocks_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        cidrBlocks_ = null;
         cidrBlocksBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       return this;
     }
 
@@ -1451,7 +1357,7 @@ public Builder mergeFrom(com.google.container.v1.MasterAuthorizedNetworksConfig
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1466,18 +1372,51 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.MasterAuthorizedNetworksConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                com.google.container.v1.MasterAuthorizedNetworksConfig.CidrBlock m =
+                    input.readMessage(
+                        com.google.container.v1.MasterAuthorizedNetworksConfig.CidrBlock.parser(),
+                        extensionRegistry);
+                if (cidrBlocksBuilder_ == null) {
+                  ensureCidrBlocksIsMutable();
+                  cidrBlocks_.add(m);
+                } else {
+                  cidrBlocksBuilder_.addMessage(m);
+                }
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.MasterAuthorizedNetworksConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1974,7 +1913,18 @@ public MasterAuthorizedNetworksConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MasterAuthorizedNetworksConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaxPodsConstraint.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaxPodsConstraint.java
index ed2f8ab8..9d6a25f8 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaxPodsConstraint.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MaxPodsConstraint.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MaxPodsConstraint(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              maxPodsPerNode_ = input.readInt64();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_MaxPodsConstraint_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (maxPodsPerNode_ != 0L) {
       output.writeInt64(1, maxPodsPerNode_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (maxPodsPerNode_ != 0L) {
       size += com.google.protobuf.CodedOutputStream.computeInt64Size(1, maxPodsPerNode_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.MaxPodsConstraint) obj;
 
     if (getMaxPodsPerNode() != other.getMaxPodsPerNode()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + MAX_PODS_PER_NODE_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getMaxPodsPerNode());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.MaxPodsConstraint.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -413,7 +362,7 @@ public Builder mergeFrom(com.google.container.v1.MaxPodsConstraint other) {
       if (other.getMaxPodsPerNode() != 0L) {
         setMaxPodsPerNode(other.getMaxPodsPerNode());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -428,17 +377,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.MaxPodsConstraint parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                maxPodsPerNode_ = input.readInt64();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.MaxPodsConstraint) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -526,7 +495,18 @@ public MaxPodsConstraint parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MaxPodsConstraint(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MeshCertificates.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MeshCertificates.java
index 1ba8eebc..bd4bd5da 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MeshCertificates.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MeshCertificates.java
@@ -50,60 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MeshCertificates(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.protobuf.BoolValue.Builder subBuilder = null;
-              if (enableCertificates_ != null) {
-                subBuilder = enableCertificates_.toBuilder();
-              }
-              enableCertificates_ =
-                  input.readMessage(com.google.protobuf.BoolValue.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(enableCertificates_);
-                enableCertificates_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_MeshCertificates_descriptor;
@@ -202,7 +148,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enableCertificates_ != null) {
       output.writeMessage(1, getEnableCertificates());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -214,7 +160,7 @@ public int getSerializedSize() {
     if (enableCertificates_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getEnableCertificates());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -233,7 +179,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasEnableCertificates()) {
       if (!getEnableCertificates().equals(other.getEnableCertificates())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -248,7 +194,7 @@ public int hashCode() {
       hash = (37 * hash) + ENABLE_CERTIFICATES_FIELD_NUMBER;
       hash = (53 * hash) + getEnableCertificates().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -377,17 +323,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.MeshCertificates.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -483,7 +422,7 @@ public Builder mergeFrom(com.google.container.v1.MeshCertificates other) {
       if (other.hasEnableCertificates()) {
         mergeEnableCertificates(other.getEnableCertificates());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -498,17 +437,38 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.MeshCertificates parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getEnableCertificatesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.MeshCertificates) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -783,7 +743,18 @@ public MeshCertificates parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MeshCertificates(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MonitoringComponentConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MonitoringComponentConfig.java
index 9439599e..2222b5da 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MonitoringComponentConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MonitoringComponentConfig.java
@@ -52,74 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MonitoringComponentConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                enableComponents_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              enableComponents_.add(rawValue);
-              break;
-            }
-          case 10:
-            {
-              int length = input.readRawVarint32();
-              int oldLimit = input.pushLimit(length);
-              while (input.getBytesUntilLimit() > 0) {
-                int rawValue = input.readEnum();
-                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                  enableComponents_ = new java.util.ArrayList();
-                  mutable_bitField0_ |= 0x00000001;
-                }
-                enableComponents_.add(rawValue);
-              }
-              input.popLimit(oldLimit);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        enableComponents_ = java.util.Collections.unmodifiableList(enableComponents_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_MonitoringComponentConfig_descriptor;
@@ -471,7 +403,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < enableComponents_.size(); i++) {
       output.writeEnumNoTag(enableComponents_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -493,7 +425,7 @@ public int getSerializedSize() {
       }
       enableComponentsMemoizedSerializedSize = dataSize;
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -510,7 +442,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.MonitoringComponentConfig) obj;
 
     if (!enableComponents_.equals(other.enableComponents_)) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -525,7 +457,7 @@ public int hashCode() {
       hash = (37 * hash) + ENABLE_COMPONENTS_FIELD_NUMBER;
       hash = (53 * hash) + enableComponents_.hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -654,17 +586,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.MonitoringComponentConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -765,7 +690,7 @@ public Builder mergeFrom(com.google.container.v1.MonitoringComponentConfig other
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -780,18 +705,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.MonitoringComponentConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                int tmpRaw = input.readEnum();
+                ensureEnableComponentsIsMutable();
+                enableComponents_.add(tmpRaw);
+                break;
+              } // case 8
+            case 10:
+              {
+                int length = input.readRawVarint32();
+                int oldLimit = input.pushLimit(length);
+                while (input.getBytesUntilLimit() > 0) {
+                  int tmpRaw = input.readEnum();
+                  ensureEnableComponentsIsMutable();
+                  enableComponents_.add(tmpRaw);
+                }
+                input.popLimit(oldLimit);
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.MonitoringComponentConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1091,7 +1048,18 @@ public MonitoringComponentConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MonitoringComponentConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MonitoringConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MonitoringConfig.java
index 8858dc08..87689d2e 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MonitoringConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/MonitoringConfig.java
@@ -50,78 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MonitoringConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.MonitoringComponentConfig.Builder subBuilder = null;
-              if (componentConfig_ != null) {
-                subBuilder = componentConfig_.toBuilder();
-              }
-              componentConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.MonitoringComponentConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(componentConfig_);
-                componentConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 18:
-            {
-              com.google.container.v1.ManagedPrometheusConfig.Builder subBuilder = null;
-              if (managedPrometheusConfig_ != null) {
-                subBuilder = managedPrometheusConfig_.toBuilder();
-              }
-              managedPrometheusConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.ManagedPrometheusConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(managedPrometheusConfig_);
-                managedPrometheusConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_MonitoringConfig_descriptor;
@@ -257,7 +185,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (managedPrometheusConfig_ != null) {
       output.writeMessage(2, getManagedPrometheusConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -273,7 +201,7 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(2, getManagedPrometheusConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -296,7 +224,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasManagedPrometheusConfig()) {
       if (!getManagedPrometheusConfig().equals(other.getManagedPrometheusConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -315,7 +243,7 @@ public int hashCode() {
       hash = (37 * hash) + MANAGED_PROMETHEUS_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getManagedPrometheusConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -444,17 +372,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.MonitoringConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -564,7 +485,7 @@ public Builder mergeFrom(com.google.container.v1.MonitoringConfig other) {
       if (other.hasManagedPrometheusConfig()) {
         mergeManagedPrometheusConfig(other.getManagedPrometheusConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -579,17 +500,44 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.MonitoringConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getComponentConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(
+                    getManagedPrometheusConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.MonitoringConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1011,7 +959,18 @@ public MonitoringConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MonitoringConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkConfig.java
index 8e319f78..0dd0111f 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkConfig.java
@@ -55,130 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NetworkConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              network_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              subnetwork_ = s;
-              break;
-            }
-          case 40:
-            {
-              enableIntraNodeVisibility_ = input.readBool();
-              break;
-            }
-          case 58:
-            {
-              com.google.container.v1.DefaultSnatStatus.Builder subBuilder = null;
-              if (defaultSnatStatus_ != null) {
-                subBuilder = defaultSnatStatus_.toBuilder();
-              }
-              defaultSnatStatus_ =
-                  input.readMessage(
-                      com.google.container.v1.DefaultSnatStatus.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(defaultSnatStatus_);
-                defaultSnatStatus_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 80:
-            {
-              enableL4IlbSubsetting_ = input.readBool();
-              break;
-            }
-          case 88:
-            {
-              int rawValue = input.readEnum();
-
-              datapathProvider_ = rawValue;
-              break;
-            }
-          case 96:
-            {
-              int rawValue = input.readEnum();
-
-              privateIpv6GoogleAccess_ = rawValue;
-              break;
-            }
-          case 106:
-            {
-              com.google.container.v1.DNSConfig.Builder subBuilder = null;
-              if (dnsConfig_ != null) {
-                subBuilder = dnsConfig_.toBuilder();
-              }
-              dnsConfig_ =
-                  input.readMessage(com.google.container.v1.DNSConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(dnsConfig_);
-                dnsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 122:
-            {
-              com.google.container.v1.ServiceExternalIPsConfig.Builder subBuilder = null;
-              if (serviceExternalIpsConfig_ != null) {
-                subBuilder = serviceExternalIpsConfig_.toBuilder();
-              }
-              serviceExternalIpsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.ServiceExternalIPsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(serviceExternalIpsConfig_);
-                serviceExternalIpsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NetworkConfig_descriptor;
@@ -618,7 +494,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (serviceExternalIpsConfig_ != null) {
       output.writeMessage(15, getServiceExternalIpsConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -659,7 +535,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               15, getServiceExternalIpsConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -692,7 +568,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasServiceExternalIpsConfig()) {
       if (!getServiceExternalIpsConfig().equals(other.getServiceExternalIpsConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -727,7 +603,7 @@ public int hashCode() {
       hash = (37 * hash) + SERVICE_EXTERNAL_IPS_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getServiceExternalIpsConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -855,17 +731,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NetworkConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1027,7 +896,7 @@ public Builder mergeFrom(com.google.container.v1.NetworkConfig other) {
       if (other.hasServiceExternalIpsConfig()) {
         mergeServiceExternalIpsConfig(other.getServiceExternalIpsConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1042,17 +911,87 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NetworkConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                network_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                subnetwork_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 40:
+              {
+                enableIntraNodeVisibility_ = input.readBool();
+
+                break;
+              } // case 40
+            case 58:
+              {
+                input.readMessage(
+                    getDefaultSnatStatusFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 58
+            case 80:
+              {
+                enableL4IlbSubsetting_ = input.readBool();
+
+                break;
+              } // case 80
+            case 88:
+              {
+                datapathProvider_ = input.readEnum();
+
+                break;
+              } // case 88
+            case 96:
+              {
+                privateIpv6GoogleAccess_ = input.readEnum();
+
+                break;
+              } // case 96
+            case 106:
+              {
+                input.readMessage(getDnsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 106
+            case 122:
+              {
+                input.readMessage(
+                    getServiceExternalIpsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 122
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NetworkConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2232,7 +2171,18 @@ public NetworkConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NetworkConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkPolicy.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkPolicy.java
index 20dce346..ed0a16c4 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkPolicy.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkPolicy.java
@@ -53,57 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NetworkPolicy(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              provider_ = rawValue;
-              break;
-            }
-          case 16:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NetworkPolicy_descriptor;
@@ -329,7 +278,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(2, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -345,7 +294,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(2, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -362,7 +311,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (provider_ != other.provider_) return false;
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -377,7 +326,7 @@ public int hashCode() {
     hash = (53 * hash) + provider_;
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -506,17 +455,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NetworkPolicy.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -610,7 +552,7 @@ public Builder mergeFrom(com.google.container.v1.NetworkPolicy other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -625,17 +567,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NetworkPolicy parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                provider_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NetworkPolicy) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -814,7 +782,18 @@ public NetworkPolicy parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NetworkPolicy(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkPolicyConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkPolicyConfig.java
index 14db5ed4..f55b87da 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkPolicyConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkPolicyConfig.java
@@ -52,50 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NetworkPolicyConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NetworkPolicyConfig_descriptor;
@@ -146,7 +102,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (disabled_ != false) {
       output.writeBool(1, disabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -158,7 +114,7 @@ public int getSerializedSize() {
     if (disabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, disabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -175,7 +131,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.NetworkPolicyConfig) obj;
 
     if (getDisabled() != other.getDisabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -188,7 +144,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DISABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -319,17 +275,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NetworkPolicyConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -417,7 +366,7 @@ public Builder mergeFrom(com.google.container.v1.NetworkPolicyConfig other) {
       if (other.getDisabled() != false) {
         setDisabled(other.getDisabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -432,17 +381,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NetworkPolicyConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NetworkPolicyConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -530,7 +499,18 @@ public NetworkPolicyConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NetworkPolicyConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkTags.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkTags.java
index 9caaa253..9879837a 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkTags.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NetworkTags.java
@@ -53,59 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NetworkTags(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                tags_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              tags_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        tags_ = tags_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NetworkTags_descriptor;
@@ -199,7 +146,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < tags_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, tags_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -216,7 +163,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getTagsList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -232,7 +179,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.NetworkTags other = (com.google.container.v1.NetworkTags) obj;
 
     if (!getTagsList().equals(other.getTagsList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -247,7 +194,7 @@ public int hashCode() {
       hash = (37 * hash) + TAGS_FIELD_NUMBER;
       hash = (53 * hash) + getTagsList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -376,17 +323,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NetworkTags.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -485,7 +425,7 @@ public Builder mergeFrom(com.google.container.v1.NetworkTags other) {
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -500,17 +440,38 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NetworkTags parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureTagsIsMutable();
+                tags_.add(s);
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NetworkTags) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -716,7 +677,18 @@ public NetworkTags parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NetworkTags(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfig.java
index 131636ac..886488d5 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfig.java
@@ -66,355 +66,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              machineType_ = s;
-              break;
-            }
-          case 16:
-            {
-              diskSizeGb_ = input.readInt32();
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                oauthScopes_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              oauthScopes_.add(s);
-              break;
-            }
-          case 34:
-            {
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                metadata_ =
-                    com.google.protobuf.MapField.newMapField(
-                        MetadataDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000002;
-              }
-              com.google.protobuf.MapEntry metadata__ =
-                  input.readMessage(
-                      MetadataDefaultEntryHolder.defaultEntry.getParserForType(),
-                      extensionRegistry);
-              metadata_.getMutableMap().put(metadata__.getKey(), metadata__.getValue());
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              imageType_ = s;
-              break;
-            }
-          case 50:
-            {
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                labels_ =
-                    com.google.protobuf.MapField.newMapField(LabelsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000004;
-              }
-              com.google.protobuf.MapEntry labels__ =
-                  input.readMessage(
-                      LabelsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
-              labels_.getMutableMap().put(labels__.getKey(), labels__.getValue());
-              break;
-            }
-          case 56:
-            {
-              localSsdCount_ = input.readInt32();
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000008) != 0)) {
-                tags_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000008;
-              }
-              tags_.add(s);
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              serviceAccount_ = s;
-              break;
-            }
-          case 80:
-            {
-              preemptible_ = input.readBool();
-              break;
-            }
-          case 90:
-            {
-              if (!((mutable_bitField0_ & 0x00000010) != 0)) {
-                accelerators_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000010;
-              }
-              accelerators_.add(
-                  input.readMessage(
-                      com.google.container.v1.AcceleratorConfig.parser(), extensionRegistry));
-              break;
-            }
-          case 98:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              diskType_ = s;
-              break;
-            }
-          case 106:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              minCpuPlatform_ = s;
-              break;
-            }
-          case 114:
-            {
-              com.google.container.v1.WorkloadMetadataConfig.Builder subBuilder = null;
-              if (workloadMetadataConfig_ != null) {
-                subBuilder = workloadMetadataConfig_.toBuilder();
-              }
-              workloadMetadataConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.WorkloadMetadataConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(workloadMetadataConfig_);
-                workloadMetadataConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 122:
-            {
-              if (!((mutable_bitField0_ & 0x00000020) != 0)) {
-                taints_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000020;
-              }
-              taints_.add(
-                  input.readMessage(com.google.container.v1.NodeTaint.parser(), extensionRegistry));
-              break;
-            }
-          case 138:
-            {
-              com.google.container.v1.SandboxConfig.Builder subBuilder = null;
-              if (sandboxConfig_ != null) {
-                subBuilder = sandboxConfig_.toBuilder();
-              }
-              sandboxConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.SandboxConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(sandboxConfig_);
-                sandboxConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 146:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodeGroup_ = s;
-              break;
-            }
-          case 154:
-            {
-              com.google.container.v1.ReservationAffinity.Builder subBuilder = null;
-              if (reservationAffinity_ != null) {
-                subBuilder = reservationAffinity_.toBuilder();
-              }
-              reservationAffinity_ =
-                  input.readMessage(
-                      com.google.container.v1.ReservationAffinity.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(reservationAffinity_);
-                reservationAffinity_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 162:
-            {
-              com.google.container.v1.ShieldedInstanceConfig.Builder subBuilder = null;
-              if (shieldedInstanceConfig_ != null) {
-                subBuilder = shieldedInstanceConfig_.toBuilder();
-              }
-              shieldedInstanceConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.ShieldedInstanceConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(shieldedInstanceConfig_);
-                shieldedInstanceConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 170:
-            {
-              com.google.container.v1.LinuxNodeConfig.Builder subBuilder = null;
-              if (linuxNodeConfig_ != null) {
-                subBuilder = linuxNodeConfig_.toBuilder();
-              }
-              linuxNodeConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.LinuxNodeConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(linuxNodeConfig_);
-                linuxNodeConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 178:
-            {
-              com.google.container.v1.NodeKubeletConfig.Builder subBuilder = null;
-              if (kubeletConfig_ != null) {
-                subBuilder = kubeletConfig_.toBuilder();
-              }
-              kubeletConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.NodeKubeletConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(kubeletConfig_);
-                kubeletConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 186:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              bootDiskKmsKey_ = s;
-              break;
-            }
-          case 202:
-            {
-              com.google.container.v1.GcfsConfig.Builder subBuilder = null;
-              if (gcfsConfig_ != null) {
-                subBuilder = gcfsConfig_.toBuilder();
-              }
-              gcfsConfig_ =
-                  input.readMessage(com.google.container.v1.GcfsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gcfsConfig_);
-                gcfsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 210:
-            {
-              com.google.container.v1.AdvancedMachineFeatures.Builder subBuilder = null;
-              if (advancedMachineFeatures_ != null) {
-                subBuilder = advancedMachineFeatures_.toBuilder();
-              }
-              advancedMachineFeatures_ =
-                  input.readMessage(
-                      com.google.container.v1.AdvancedMachineFeatures.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(advancedMachineFeatures_);
-                advancedMachineFeatures_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 234:
-            {
-              com.google.container.v1.VirtualNIC.Builder subBuilder = null;
-              if (gvnic_ != null) {
-                subBuilder = gvnic_.toBuilder();
-              }
-              gvnic_ =
-                  input.readMessage(com.google.container.v1.VirtualNIC.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gvnic_);
-                gvnic_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 256:
-            {
-              spot_ = input.readBool();
-              break;
-            }
-          case 282:
-            {
-              com.google.container.v1.ConfidentialNodes.Builder subBuilder = null;
-              if (confidentialNodes_ != null) {
-                subBuilder = confidentialNodes_.toBuilder();
-              }
-              confidentialNodes_ =
-                  input.readMessage(
-                      com.google.container.v1.ConfidentialNodes.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(confidentialNodes_);
-                confidentialNodes_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        oauthScopes_ = oauthScopes_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000008) != 0)) {
-        tags_ = tags_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000010) != 0)) {
-        accelerators_ = java.util.Collections.unmodifiableList(accelerators_);
-      }
-      if (((mutable_bitField0_ & 0x00000020) != 0)) {
-        taints_ = java.util.Collections.unmodifiableList(taints_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodeConfig_descriptor;
@@ -2071,6 +1722,54 @@ public com.google.container.v1.ConfidentialNodesOrBuilder getConfidentialNodesOr
     return getConfidentialNodes();
   }
 
+  public static final int LOGGING_CONFIG_FIELD_NUMBER = 38;
+  private com.google.container.v1.NodePoolLoggingConfig loggingConfig_;
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasLoggingConfig() {
+    return loggingConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+   *
+   * @return The loggingConfig.
+   */
+  @java.lang.Override
+  public com.google.container.v1.NodePoolLoggingConfig getLoggingConfig() {
+    return loggingConfig_ == null
+        ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+        : loggingConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+   */
+  @java.lang.Override
+  public com.google.container.v1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+    return getLoggingConfig();
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -2164,7 +1863,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (confidentialNodes_ != null) {
       output.writeMessage(35, getConfidentialNodes());
     }
-    unknownFields.writeTo(output);
+    if (loggingConfig_ != null) {
+      output.writeMessage(38, getLoggingConfig());
+    }
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -2283,7 +1985,10 @@ public int getSerializedSize() {
     if (confidentialNodes_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(35, getConfidentialNodes());
     }
-    size += unknownFields.getSerializedSize();
+    if (loggingConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(38, getLoggingConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -2355,7 +2060,11 @@ public boolean equals(final java.lang.Object obj) {
     if (hasConfidentialNodes()) {
       if (!getConfidentialNodes().equals(other.getConfidentialNodes())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (hasLoggingConfig() != other.hasLoggingConfig()) return false;
+    if (hasLoggingConfig()) {
+      if (!getLoggingConfig().equals(other.getLoggingConfig())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -2452,7 +2161,11 @@ public int hashCode() {
       hash = (37 * hash) + CONFIDENTIAL_NODES_FIELD_NUMBER;
       hash = (53 * hash) + getConfidentialNodes().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    if (hasLoggingConfig()) {
+      hash = (37 * hash) + LOGGING_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getLoggingConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -2608,20 +2321,10 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1.NodeConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getAcceleratorsFieldBuilder();
-        getTaintsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -2647,10 +2350,11 @@ public Builder clear() {
 
       if (acceleratorsBuilder_ == null) {
         accelerators_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000010);
       } else {
+        accelerators_ = null;
         acceleratorsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000010);
       diskType_ = "";
 
       minCpuPlatform_ = "";
@@ -2663,10 +2367,11 @@ public Builder clear() {
       }
       if (taintsBuilder_ == null) {
         taints_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000020);
       } else {
+        taints_ = null;
         taintsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000020);
       if (sandboxConfigBuilder_ == null) {
         sandboxConfig_ = null;
       } else {
@@ -2727,6 +2432,12 @@ public Builder clear() {
         confidentialNodes_ = null;
         confidentialNodesBuilder_ = null;
       }
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
       return this;
     }
 
@@ -2847,6 +2558,11 @@ public com.google.container.v1.NodeConfig buildPartial() {
       } else {
         result.confidentialNodes_ = confidentialNodesBuilder_.build();
       }
+      if (loggingConfigBuilder_ == null) {
+        result.loggingConfig_ = loggingConfig_;
+      } else {
+        result.loggingConfig_ = loggingConfigBuilder_.build();
+      }
       onBuilt();
       return result;
     }
@@ -3042,7 +2758,10 @@ public Builder mergeFrom(com.google.container.v1.NodeConfig other) {
       if (other.hasConfidentialNodes()) {
         mergeConfidentialNodes(other.getConfidentialNodes());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      if (other.hasLoggingConfig()) {
+        mergeLoggingConfig(other.getLoggingConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -3057,17 +2776,230 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodeConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                machineType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                diskSizeGb_ = input.readInt32();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureOauthScopesIsMutable();
+                oauthScopes_.add(s);
+                break;
+              } // case 26
+            case 34:
+              {
+                com.google.protobuf.MapEntry metadata__ =
+                    input.readMessage(
+                        MetadataDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableMetadata()
+                    .getMutableMap()
+                    .put(metadata__.getKey(), metadata__.getValue());
+                break;
+              } // case 34
+            case 42:
+              {
+                imageType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                com.google.protobuf.MapEntry labels__ =
+                    input.readMessage(
+                        LabelsDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableLabels()
+                    .getMutableMap()
+                    .put(labels__.getKey(), labels__.getValue());
+                break;
+              } // case 50
+            case 56:
+              {
+                localSsdCount_ = input.readInt32();
+
+                break;
+              } // case 56
+            case 66:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureTagsIsMutable();
+                tags_.add(s);
+                break;
+              } // case 66
+            case 74:
+              {
+                serviceAccount_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 80:
+              {
+                preemptible_ = input.readBool();
+
+                break;
+              } // case 80
+            case 90:
+              {
+                com.google.container.v1.AcceleratorConfig m =
+                    input.readMessage(
+                        com.google.container.v1.AcceleratorConfig.parser(), extensionRegistry);
+                if (acceleratorsBuilder_ == null) {
+                  ensureAcceleratorsIsMutable();
+                  accelerators_.add(m);
+                } else {
+                  acceleratorsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 90
+            case 98:
+              {
+                diskType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 98
+            case 106:
+              {
+                minCpuPlatform_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 106
+            case 114:
+              {
+                input.readMessage(
+                    getWorkloadMetadataConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 114
+            case 122:
+              {
+                com.google.container.v1.NodeTaint m =
+                    input.readMessage(
+                        com.google.container.v1.NodeTaint.parser(), extensionRegistry);
+                if (taintsBuilder_ == null) {
+                  ensureTaintsIsMutable();
+                  taints_.add(m);
+                } else {
+                  taintsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 122
+            case 138:
+              {
+                input.readMessage(getSandboxConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 138
+            case 146:
+              {
+                nodeGroup_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 146
+            case 154:
+              {
+                input.readMessage(
+                    getReservationAffinityFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 154
+            case 162:
+              {
+                input.readMessage(
+                    getShieldedInstanceConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 162
+            case 170:
+              {
+                input.readMessage(getLinuxNodeConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 170
+            case 178:
+              {
+                input.readMessage(getKubeletConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 178
+            case 186:
+              {
+                bootDiskKmsKey_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 186
+            case 202:
+              {
+                input.readMessage(getGcfsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 202
+            case 210:
+              {
+                input.readMessage(
+                    getAdvancedMachineFeaturesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 210
+            case 234:
+              {
+                input.readMessage(getGvnicFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 234
+            case 256:
+              {
+                spot_ = input.readBool();
+
+                break;
+              } // case 256
+            case 282:
+              {
+                input.readMessage(
+                    getConfidentialNodesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 282
+            case 306:
+              {
+                input.readMessage(getLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 306
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodeConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -7838,6 +7770,192 @@ public com.google.container.v1.ConfidentialNodesOrBuilder getConfidentialNodesOr
       return confidentialNodesBuilder_;
     }
 
+    private com.google.container.v1.NodePoolLoggingConfig loggingConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1.NodePoolLoggingConfig,
+            com.google.container.v1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1.NodePoolLoggingConfigOrBuilder>
+        loggingConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+     *
+     * @return Whether the loggingConfig field is set.
+     */
+    public boolean hasLoggingConfig() {
+      return loggingConfigBuilder_ != null || loggingConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+     *
+     * @return The loggingConfig.
+     */
+    public com.google.container.v1.NodePoolLoggingConfig getLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        return loggingConfig_ == null
+            ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      } else {
+        return loggingConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public Builder setLoggingConfig(com.google.container.v1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        loggingConfig_ = value;
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public Builder setLoggingConfig(
+        com.google.container.v1.NodePoolLoggingConfig.Builder builderForValue) {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public Builder mergeLoggingConfig(com.google.container.v1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (loggingConfig_ != null) {
+          loggingConfig_ =
+              com.google.container.v1.NodePoolLoggingConfig.newBuilder(loggingConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          loggingConfig_ = value;
+        }
+        onChanged();
+      } else {
+        loggingConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public Builder clearLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+        onChanged();
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public com.google.container.v1.NodePoolLoggingConfig.Builder getLoggingConfigBuilder() {
+
+      onChanged();
+      return getLoggingConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public com.google.container.v1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+      if (loggingConfigBuilder_ != null) {
+        return loggingConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return loggingConfig_ == null
+            ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1.NodePoolLoggingConfig,
+            com.google.container.v1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1.NodePoolLoggingConfigOrBuilder>
+        getLoggingConfigFieldBuilder() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.container.v1.NodePoolLoggingConfig,
+                com.google.container.v1.NodePoolLoggingConfig.Builder,
+                com.google.container.v1.NodePoolLoggingConfigOrBuilder>(
+                getLoggingConfig(), getParentForChildren(), isClean());
+        loggingConfig_ = null;
+      }
+      return loggingConfigBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
@@ -7870,7 +7988,18 @@ public NodeConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigDefaults.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigDefaults.java
index 533d3dfe..c9b81664 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigDefaults.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigDefaults.java
@@ -50,60 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeConfigDefaults(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.GcfsConfig.Builder subBuilder = null;
-              if (gcfsConfig_ != null) {
-                subBuilder = gcfsConfig_.toBuilder();
-              }
-              gcfsConfig_ =
-                  input.readMessage(com.google.container.v1.GcfsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gcfsConfig_);
-                gcfsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodeConfigDefaults_descriptor;
@@ -167,6 +113,54 @@ public com.google.container.v1.GcfsConfigOrBuilder getGcfsConfigOrBuilder() {
     return getGcfsConfig();
   }
 
+  public static final int LOGGING_CONFIG_FIELD_NUMBER = 3;
+  private com.google.container.v1.NodePoolLoggingConfig loggingConfig_;
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasLoggingConfig() {
+    return loggingConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+   *
+   * @return The loggingConfig.
+   */
+  @java.lang.Override
+  public com.google.container.v1.NodePoolLoggingConfig getLoggingConfig() {
+    return loggingConfig_ == null
+        ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+        : loggingConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+   */
+  @java.lang.Override
+  public com.google.container.v1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+    return getLoggingConfig();
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -184,7 +178,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (gcfsConfig_ != null) {
       output.writeMessage(1, getGcfsConfig());
     }
-    unknownFields.writeTo(output);
+    if (loggingConfig_ != null) {
+      output.writeMessage(3, getLoggingConfig());
+    }
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -196,7 +193,10 @@ public int getSerializedSize() {
     if (gcfsConfig_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getGcfsConfig());
     }
-    size += unknownFields.getSerializedSize();
+    if (loggingConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getLoggingConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -216,7 +216,11 @@ public boolean equals(final java.lang.Object obj) {
     if (hasGcfsConfig()) {
       if (!getGcfsConfig().equals(other.getGcfsConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (hasLoggingConfig() != other.hasLoggingConfig()) return false;
+    if (hasLoggingConfig()) {
+      if (!getLoggingConfig().equals(other.getLoggingConfig())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -231,7 +235,11 @@ public int hashCode() {
       hash = (37 * hash) + GCFS_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getGcfsConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    if (hasLoggingConfig()) {
+      hash = (37 * hash) + LOGGING_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getLoggingConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -360,17 +368,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NodeConfigDefaults.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -382,6 +383,12 @@ public Builder clear() {
         gcfsConfig_ = null;
         gcfsConfigBuilder_ = null;
       }
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
       return this;
     }
 
@@ -414,6 +421,11 @@ public com.google.container.v1.NodeConfigDefaults buildPartial() {
       } else {
         result.gcfsConfig_ = gcfsConfigBuilder_.build();
       }
+      if (loggingConfigBuilder_ == null) {
+        result.loggingConfig_ = loggingConfig_;
+      } else {
+        result.loggingConfig_ = loggingConfigBuilder_.build();
+      }
       onBuilt();
       return result;
     }
@@ -466,7 +478,10 @@ public Builder mergeFrom(com.google.container.v1.NodeConfigDefaults other) {
       if (other.hasGcfsConfig()) {
         mergeGcfsConfig(other.getGcfsConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      if (other.hasLoggingConfig()) {
+        mergeLoggingConfig(other.getLoggingConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -481,17 +496,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodeConfigDefaults parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getGcfsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 26:
+              {
+                input.readMessage(getLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodeConfigDefaults) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -680,6 +721,192 @@ public com.google.container.v1.GcfsConfigOrBuilder getGcfsConfigOrBuilder() {
       return gcfsConfigBuilder_;
     }
 
+    private com.google.container.v1.NodePoolLoggingConfig loggingConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1.NodePoolLoggingConfig,
+            com.google.container.v1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1.NodePoolLoggingConfigOrBuilder>
+        loggingConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+     *
+     * @return Whether the loggingConfig field is set.
+     */
+    public boolean hasLoggingConfig() {
+      return loggingConfigBuilder_ != null || loggingConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+     *
+     * @return The loggingConfig.
+     */
+    public com.google.container.v1.NodePoolLoggingConfig getLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        return loggingConfig_ == null
+            ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      } else {
+        return loggingConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public Builder setLoggingConfig(com.google.container.v1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        loggingConfig_ = value;
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public Builder setLoggingConfig(
+        com.google.container.v1.NodePoolLoggingConfig.Builder builderForValue) {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public Builder mergeLoggingConfig(com.google.container.v1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (loggingConfig_ != null) {
+          loggingConfig_ =
+              com.google.container.v1.NodePoolLoggingConfig.newBuilder(loggingConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          loggingConfig_ = value;
+        }
+        onChanged();
+      } else {
+        loggingConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public Builder clearLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+        onChanged();
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public com.google.container.v1.NodePoolLoggingConfig.Builder getLoggingConfigBuilder() {
+
+      onChanged();
+      return getLoggingConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public com.google.container.v1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+      if (loggingConfigBuilder_ != null) {
+        return loggingConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return loggingConfig_ == null
+            ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1.NodePoolLoggingConfig,
+            com.google.container.v1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1.NodePoolLoggingConfigOrBuilder>
+        getLoggingConfigFieldBuilder() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.container.v1.NodePoolLoggingConfig,
+                com.google.container.v1.NodePoolLoggingConfig.Builder,
+                com.google.container.v1.NodePoolLoggingConfigOrBuilder>(
+                getLoggingConfig(), getParentForChildren(), isClean());
+        loggingConfig_ = null;
+      }
+      return loggingConfigBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
@@ -712,7 +939,18 @@ public NodeConfigDefaults parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeConfigDefaults(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigDefaultsOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigDefaultsOrBuilder.java
index 8a46c69c..8e42bc9a 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigDefaultsOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigDefaultsOrBuilder.java
@@ -57,4 +57,39 @@ public interface NodeConfigDefaultsOrBuilder
    * .google.container.v1.GcfsConfig gcfs_config = 1;
    */
   com.google.container.v1.GcfsConfigOrBuilder getGcfsConfigOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  boolean hasLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+   *
+   * @return The loggingConfig.
+   */
+  com.google.container.v1.NodePoolLoggingConfig getLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 3;
+   */
+  com.google.container.v1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder();
 }
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigOrBuilder.java
index 1aa7f2fd..f4bf8708 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeConfigOrBuilder.java
@@ -1231,4 +1231,39 @@ java.lang.String getLabelsOrDefault(
    * .google.container.v1.ConfidentialNodes confidential_nodes = 35;
    */
   com.google.container.v1.ConfidentialNodesOrBuilder getConfidentialNodesOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  boolean hasLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+   *
+   * @return The loggingConfig.
+   */
+  com.google.container.v1.NodePoolLoggingConfig getLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 38;
+   */
+  com.google.container.v1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder();
 }
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeKubeletConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeKubeletConfig.java
index ec203275..eebc3140 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeKubeletConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeKubeletConfig.java
@@ -53,79 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeKubeletConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              cpuManagerPolicy_ = s;
-              break;
-            }
-          case 18:
-            {
-              com.google.protobuf.BoolValue.Builder subBuilder = null;
-              if (cpuCfsQuota_ != null) {
-                subBuilder = cpuCfsQuota_.toBuilder();
-              }
-              cpuCfsQuota_ =
-                  input.readMessage(com.google.protobuf.BoolValue.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(cpuCfsQuota_);
-                cpuCfsQuota_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              cpuCfsQuotaPeriod_ = s;
-              break;
-            }
-          case 32:
-            {
-              podPidsLimit_ = input.readInt64();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodeKubeletConfig_descriptor;
@@ -375,7 +302,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (podPidsLimit_ != 0L) {
       output.writeInt64(4, podPidsLimit_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -396,7 +323,7 @@ public int getSerializedSize() {
     if (podPidsLimit_ != 0L) {
       size += com.google.protobuf.CodedOutputStream.computeInt64Size(4, podPidsLimit_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -419,7 +346,7 @@ public boolean equals(final java.lang.Object obj) {
     }
     if (!getCpuCfsQuotaPeriod().equals(other.getCpuCfsQuotaPeriod())) return false;
     if (getPodPidsLimit() != other.getPodPidsLimit()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -440,7 +367,7 @@ public int hashCode() {
     hash = (53 * hash) + getCpuCfsQuotaPeriod().hashCode();
     hash = (37 * hash) + POD_PIDS_LIMIT_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getPodPidsLimit());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -569,17 +496,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NodeKubeletConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -695,7 +615,7 @@ public Builder mergeFrom(com.google.container.v1.NodeKubeletConfig other) {
       if (other.getPodPidsLimit() != 0L) {
         setPodPidsLimit(other.getPodPidsLimit());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -710,17 +630,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodeKubeletConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                cpuManagerPolicy_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(getCpuCfsQuotaFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 18
+            case 26:
+              {
+                cpuCfsQuotaPeriod_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 32:
+              {
+                podPidsLimit_ = input.readInt64();
+
+                break;
+              } // case 32
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodeKubeletConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1332,7 +1290,18 @@ public NodeKubeletConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeKubeletConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeLabels.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeLabels.java
index 44abe154..45faf3d0 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeLabels.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeLabels.java
@@ -51,59 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeLabels(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                labels_ =
-                    com.google.protobuf.MapField.newMapField(LabelsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000001;
-              }
-              com.google.protobuf.MapEntry labels__ =
-                  input.readMessage(
-                      LabelsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
-              labels_.getMutableMap().put(labels__.getKey(), labels__.getValue());
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodeLabels_descriptor;
@@ -244,7 +191,7 @@ public final boolean isInitialized() {
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
         output, internalGetLabels(), LabelsDefaultEntryHolder.defaultEntry, 1);
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -263,7 +210,7 @@ public int getSerializedSize() {
               .build();
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, labels__);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -279,7 +226,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.NodeLabels other = (com.google.container.v1.NodeLabels) obj;
 
     if (!internalGetLabels().equals(other.internalGetLabels())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -294,7 +241,7 @@ public int hashCode() {
       hash = (37 * hash) + LABELS_FIELD_NUMBER;
       hash = (53 * hash) + internalGetLabels().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -443,17 +390,10 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1.NodeLabels.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -539,7 +479,7 @@ public Builder mergeFrom(com.google.protobuf.Message other) {
     public Builder mergeFrom(com.google.container.v1.NodeLabels other) {
       if (other == com.google.container.v1.NodeLabels.getDefaultInstance()) return this;
       internalGetMutableLabels().mergeFrom(other.internalGetLabels());
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -554,17 +494,42 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodeLabels parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.protobuf.MapEntry labels__ =
+                    input.readMessage(
+                        LabelsDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableLabels()
+                    .getMutableMap()
+                    .put(labels__.getKey(), labels__.getValue());
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodeLabels) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -760,7 +725,18 @@ public NodeLabels parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeLabels(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeManagement.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeManagement.java
index 7e442a78..73d5bde3 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeManagement.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeManagement.java
@@ -51,71 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeManagement(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              autoUpgrade_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              autoRepair_ = input.readBool();
-              break;
-            }
-          case 82:
-            {
-              com.google.container.v1.AutoUpgradeOptions.Builder subBuilder = null;
-              if (upgradeOptions_ != null) {
-                subBuilder = upgradeOptions_.toBuilder();
-              }
-              upgradeOptions_ =
-                  input.readMessage(
-                      com.google.container.v1.AutoUpgradeOptions.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(upgradeOptions_);
-                upgradeOptions_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodeManagement_descriptor;
@@ -243,7 +178,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (upgradeOptions_ != null) {
       output.writeMessage(10, getUpgradeOptions());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -261,7 +196,7 @@ public int getSerializedSize() {
     if (upgradeOptions_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(10, getUpgradeOptions());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -282,7 +217,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasUpgradeOptions()) {
       if (!getUpgradeOptions().equals(other.getUpgradeOptions())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -301,7 +236,7 @@ public int hashCode() {
       hash = (37 * hash) + UPGRADE_OPTIONS_FIELD_NUMBER;
       hash = (53 * hash) + getUpgradeOptions().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -431,17 +366,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NodeManagement.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -549,7 +477,7 @@ public Builder mergeFrom(com.google.container.v1.NodeManagement other) {
       if (other.hasUpgradeOptions()) {
         mergeUpgradeOptions(other.getUpgradeOptions());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -564,17 +492,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodeManagement parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                autoUpgrade_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                autoRepair_ = input.readBool();
+
+                break;
+              } // case 16
+            case 82:
+              {
+                input.readMessage(getUpgradeOptionsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 82
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodeManagement) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -915,7 +875,18 @@ public NodeManagement parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeManagement(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeNetworkConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeNetworkConfig.java
index 86f4a96d..006a2ade 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeNetworkConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeNetworkConfig.java
@@ -53,83 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeNetworkConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 32:
-            {
-              createPodRange_ = input.readBool();
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              podRange_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              podIpv4CidrBlock_ = s;
-              break;
-            }
-          case 90:
-            {
-              com.google.container.v1.NodeNetworkConfig.NetworkPerformanceConfig.Builder
-                  subBuilder = null;
-              if (((bitField0_ & 0x00000001) != 0)) {
-                subBuilder = networkPerformanceConfig_.toBuilder();
-              }
-              networkPerformanceConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.NodeNetworkConfig.NetworkPerformanceConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkPerformanceConfig_);
-                networkPerformanceConfig_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000001;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodeNetworkConfig_descriptor;
@@ -228,53 +151,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private NetworkPerformanceConfig(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                int rawValue = input.readEnum();
-                bitField0_ |= 0x00000001;
-                totalEgressBandwidthTier_ = rawValue;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_NodeNetworkConfig_NetworkPerformanceConfig_descriptor;
@@ -506,7 +382,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (((bitField0_ & 0x00000001) != 0)) {
         output.writeEnum(1, totalEgressBandwidthTier_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -518,7 +394,7 @@ public int getSerializedSize() {
       if (((bitField0_ & 0x00000001) != 0)) {
         size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, totalEgressBandwidthTier_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -538,7 +414,7 @@ public boolean equals(final java.lang.Object obj) {
       if (hasTotalEgressBandwidthTier()) {
         if (totalEgressBandwidthTier_ != other.totalEgressBandwidthTier_) return false;
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -553,7 +429,7 @@ public int hashCode() {
         hash = (37 * hash) + TOTAL_EGRESS_BANDWIDTH_TIER_FIELD_NUMBER;
         hash = (53 * hash) + totalEgressBandwidthTier_;
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -687,17 +563,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
       // Construct using
       // com.google.container.v1.NodeNetworkConfig.NetworkPerformanceConfig.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -799,7 +668,7 @@ public Builder mergeFrom(
         if (other.hasTotalEgressBandwidthTier()) {
           setTotalEgressBandwidthTier(other.getTotalEgressBandwidthTier());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -814,19 +683,37 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.NodeNetworkConfig.NetworkPerformanceConfig parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  totalEgressBandwidthTier_ = input.readEnum();
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 8
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1.NodeNetworkConfig.NetworkPerformanceConfig)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -990,7 +877,19 @@ public NetworkPerformanceConfig parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new NetworkPerformanceConfig(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1247,7 +1146,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeMessage(11, getNetworkPerformanceConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1270,7 +1169,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               11, getNetworkPerformanceConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1293,7 +1192,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasNetworkPerformanceConfig()) {
       if (!getNetworkPerformanceConfig().equals(other.getNetworkPerformanceConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1314,7 +1213,7 @@ public int hashCode() {
       hash = (37 * hash) + NETWORK_PERFORMANCE_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getNetworkPerformanceConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1577,7 +1476,7 @@ public Builder mergeFrom(com.google.container.v1.NodeNetworkConfig other) {
       if (other.hasNetworkPerformanceConfig()) {
         mergeNetworkPerformanceConfig(other.getNetworkPerformanceConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1592,17 +1491,56 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodeNetworkConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 32:
+              {
+                createPodRange_ = input.readBool();
+
+                break;
+              } // case 32
+            case 42:
+              {
+                podRange_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                podIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 90:
+              {
+                input.readMessage(
+                    getNetworkPerformanceConfigFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 90
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodeNetworkConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2212,7 +2150,18 @@ public NodeNetworkConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeNetworkConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePool.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePool.java
index f5b4ddc9..5dfc1273 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePool.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePool.java
@@ -64,242 +64,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodePool(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 18:
-            {
-              com.google.container.v1.NodeConfig.Builder subBuilder = null;
-              if (config_ != null) {
-                subBuilder = config_.toBuilder();
-              }
-              config_ =
-                  input.readMessage(com.google.container.v1.NodeConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(config_);
-                config_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 24:
-            {
-              initialNodeCount_ = input.readInt32();
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1.NodePoolAutoscaling.Builder subBuilder = null;
-              if (autoscaling_ != null) {
-                subBuilder = autoscaling_.toBuilder();
-              }
-              autoscaling_ =
-                  input.readMessage(
-                      com.google.container.v1.NodePoolAutoscaling.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(autoscaling_);
-                autoscaling_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1.NodeManagement.Builder subBuilder = null;
-              if (management_ != null) {
-                subBuilder = management_.toBuilder();
-              }
-              management_ =
-                  input.readMessage(
-                      com.google.container.v1.NodeManagement.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(management_);
-                management_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              com.google.container.v1.MaxPodsConstraint.Builder subBuilder = null;
-              if (maxPodsConstraint_ != null) {
-                subBuilder = maxPodsConstraint_.toBuilder();
-              }
-              maxPodsConstraint_ =
-                  input.readMessage(
-                      com.google.container.v1.MaxPodsConstraint.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(maxPodsConstraint_);
-                maxPodsConstraint_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 56:
-            {
-              podIpv4CidrSize_ = input.readInt32();
-              break;
-            }
-          case 106:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                locations_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              locations_.add(s);
-              break;
-            }
-          case 114:
-            {
-              com.google.container.v1.NodeNetworkConfig.Builder subBuilder = null;
-              if (networkConfig_ != null) {
-                subBuilder = networkConfig_.toBuilder();
-              }
-              networkConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.NodeNetworkConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkConfig_);
-                networkConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 802:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              selfLink_ = s;
-              break;
-            }
-          case 810:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              version_ = s;
-              break;
-            }
-          case 818:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                instanceGroupUrls_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              instanceGroupUrls_.add(s);
-              break;
-            }
-          case 824:
-            {
-              int rawValue = input.readEnum();
-
-              status_ = rawValue;
-              break;
-            }
-          case 834:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              statusMessage_ = s;
-              break;
-            }
-          case 842:
-            {
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                conditions_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000004;
-              }
-              conditions_.add(
-                  input.readMessage(
-                      com.google.container.v1.StatusCondition.parser(), extensionRegistry));
-              break;
-            }
-          case 858:
-            {
-              com.google.container.v1.NodePool.UpgradeSettings.Builder subBuilder = null;
-              if (upgradeSettings_ != null) {
-                subBuilder = upgradeSettings_.toBuilder();
-              }
-              upgradeSettings_ =
-                  input.readMessage(
-                      com.google.container.v1.NodePool.UpgradeSettings.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(upgradeSettings_);
-                upgradeSettings_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 874:
-            {
-              com.google.container.v1.NodePool.UpdateInfo.Builder subBuilder = null;
-              if (updateInfo_ != null) {
-                subBuilder = updateInfo_.toBuilder();
-              }
-              updateInfo_ =
-                  input.readMessage(
-                      com.google.container.v1.NodePool.UpdateInfo.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(updateInfo_);
-                updateInfo_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        locations_ = locations_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        instanceGroupUrls_ = instanceGroupUrls_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000004) != 0)) {
-        conditions_ = java.util.Collections.unmodifiableList(conditions_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodePool_descriptor;
@@ -750,79 +514,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private UpgradeSettings(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                maxSurge_ = input.readInt32();
-                break;
-              }
-            case 16:
-              {
-                maxUnavailable_ = input.readInt32();
-                break;
-              }
-            case 24:
-              {
-                int rawValue = input.readEnum();
-                bitField0_ |= 0x00000001;
-                strategy_ = rawValue;
-                break;
-              }
-            case 34:
-              {
-                com.google.container.v1.BlueGreenSettings.Builder subBuilder = null;
-                if (((bitField0_ & 0x00000002) != 0)) {
-                  subBuilder = blueGreenSettings_.toBuilder();
-                }
-                blueGreenSettings_ =
-                    input.readMessage(
-                        com.google.container.v1.BlueGreenSettings.parser(), extensionRegistry);
-                if (subBuilder != null) {
-                  subBuilder.mergeFrom(blueGreenSettings_);
-                  blueGreenSettings_ = subBuilder.buildPartial();
-                }
-                bitField0_ |= 0x00000002;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_NodePool_UpgradeSettings_descriptor;
@@ -1005,7 +696,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (((bitField0_ & 0x00000002) != 0)) {
         output.writeMessage(4, getBlueGreenSettings());
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -1026,7 +717,7 @@ public int getSerializedSize() {
       if (((bitField0_ & 0x00000002) != 0)) {
         size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getBlueGreenSettings());
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -1052,7 +743,7 @@ public boolean equals(final java.lang.Object obj) {
       if (hasBlueGreenSettings()) {
         if (!getBlueGreenSettings().equals(other.getBlueGreenSettings())) return false;
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -1075,7 +766,7 @@ public int hashCode() {
         hash = (37 * hash) + BLUE_GREEN_SETTINGS_FIELD_NUMBER;
         hash = (53 * hash) + getBlueGreenSettings().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -1381,7 +1072,7 @@ public Builder mergeFrom(com.google.container.v1.NodePool.UpgradeSettings other)
         if (other.hasBlueGreenSettings()) {
           mergeBlueGreenSettings(other.getBlueGreenSettings());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -1396,18 +1087,56 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.NodePool.UpgradeSettings parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  maxSurge_ = input.readInt32();
+
+                  break;
+                } // case 8
+              case 16:
+                {
+                  maxUnavailable_ = input.readInt32();
+
+                  break;
+                } // case 16
+              case 24:
+                {
+                  strategy_ = input.readEnum();
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 24
+              case 34:
+                {
+                  input.readMessage(
+                      getBlueGreenSettingsFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 34
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1.NodePool.UpgradeSettings) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1855,7 +1584,19 @@ public UpgradeSettings parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new UpgradeSettings(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1947,62 +1688,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private UpdateInfo(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10:
-              {
-                com.google.container.v1.NodePool.UpdateInfo.BlueGreenInfo.Builder subBuilder = null;
-                if (blueGreenInfo_ != null) {
-                  subBuilder = blueGreenInfo_.toBuilder();
-                }
-                blueGreenInfo_ =
-                    input.readMessage(
-                        com.google.container.v1.NodePool.UpdateInfo.BlueGreenInfo.parser(),
-                        extensionRegistry);
-                if (subBuilder != null) {
-                  subBuilder.mergeFrom(blueGreenInfo_);
-                  blueGreenInfo_ = subBuilder.buildPartial();
-                }
-
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_NodePool_UpdateInfo_descriptor;
@@ -2256,94 +1941,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
         return this.unknownFields;
       }
 
-      private BlueGreenInfo(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        this();
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
-        int mutable_bitField0_ = 0;
-        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-            com.google.protobuf.UnknownFieldSet.newBuilder();
-        try {
-          boolean done = false;
-          while (!done) {
-            int tag = input.readTag();
-            switch (tag) {
-              case 0:
-                done = true;
-                break;
-              case 8:
-                {
-                  int rawValue = input.readEnum();
-
-                  phase_ = rawValue;
-                  break;
-                }
-              case 18:
-                {
-                  java.lang.String s = input.readStringRequireUtf8();
-                  if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                    blueInstanceGroupUrls_ = new com.google.protobuf.LazyStringArrayList();
-                    mutable_bitField0_ |= 0x00000001;
-                  }
-                  blueInstanceGroupUrls_.add(s);
-                  break;
-                }
-              case 26:
-                {
-                  java.lang.String s = input.readStringRequireUtf8();
-                  if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                    greenInstanceGroupUrls_ = new com.google.protobuf.LazyStringArrayList();
-                    mutable_bitField0_ |= 0x00000002;
-                  }
-                  greenInstanceGroupUrls_.add(s);
-                  break;
-                }
-              case 34:
-                {
-                  java.lang.String s = input.readStringRequireUtf8();
-
-                  bluePoolDeletionStartTime_ = s;
-                  break;
-                }
-              case 42:
-                {
-                  java.lang.String s = input.readStringRequireUtf8();
-
-                  greenPoolVersion_ = s;
-                  break;
-                }
-              default:
-                {
-                  if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                    done = true;
-                  }
-                  break;
-                }
-            }
-          }
-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          throw e.setUnfinishedMessage(this);
-        } catch (com.google.protobuf.UninitializedMessageException e) {
-          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-        } catch (java.io.IOException e) {
-          throw new com.google.protobuf.InvalidProtocolBufferException(e)
-              .setUnfinishedMessage(this);
-        } finally {
-          if (((mutable_bitField0_ & 0x00000001) != 0)) {
-            blueInstanceGroupUrls_ = blueInstanceGroupUrls_.getUnmodifiableView();
-          }
-          if (((mutable_bitField0_ & 0x00000002) != 0)) {
-            greenInstanceGroupUrls_ = greenInstanceGroupUrls_.getUnmodifiableView();
-          }
-          this.unknownFields = unknownFields.build();
-          makeExtensionsImmutable();
-        }
-      }
-
       public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         return com.google.container.v1.ClusterServiceProto
             .internal_static_google_container_v1_NodePool_UpdateInfo_BlueGreenInfo_descriptor;
@@ -2938,7 +2535,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greenPoolVersion_)) {
           com.google.protobuf.GeneratedMessageV3.writeString(output, 5, greenPoolVersion_);
         }
-        unknownFields.writeTo(output);
+        getUnknownFields().writeTo(output);
       }
 
       @java.lang.Override
@@ -2976,7 +2573,7 @@ public int getSerializedSize() {
         if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greenPoolVersion_)) {
           size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, greenPoolVersion_);
         }
-        size += unknownFields.getSerializedSize();
+        size += getUnknownFields().getSerializedSize();
         memoizedSize = size;
         return size;
       }
@@ -3000,7 +2597,7 @@ public boolean equals(final java.lang.Object obj) {
         if (!getBluePoolDeletionStartTime().equals(other.getBluePoolDeletionStartTime()))
           return false;
         if (!getGreenPoolVersion().equals(other.getGreenPoolVersion())) return false;
-        if (!unknownFields.equals(other.unknownFields)) return false;
+        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
         return true;
       }
 
@@ -3025,7 +2622,7 @@ public int hashCode() {
         hash = (53 * hash) + getBluePoolDeletionStartTime().hashCode();
         hash = (37 * hash) + GREEN_POOL_VERSION_FIELD_NUMBER;
         hash = (53 * hash) + getGreenPoolVersion().hashCode();
-        hash = (29 * hash) + unknownFields.hashCode();
+        hash = (29 * hash) + getUnknownFields().hashCode();
         memoizedHashCode = hash;
         return hash;
       }
@@ -3157,17 +2754,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         }
 
         // Construct using com.google.container.v1.NodePool.UpdateInfo.BlueGreenInfo.newBuilder()
-        private Builder() {
-          maybeForceBuilderInitialization();
-        }
+        private Builder() {}
 
         private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
           super(parent);
-          maybeForceBuilderInitialization();
-        }
-
-        private void maybeForceBuilderInitialization() {
-          if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
         }
 
         @java.lang.Override
@@ -3309,7 +2899,7 @@ public Builder mergeFrom(com.google.container.v1.NodePool.UpdateInfo.BlueGreenIn
             greenPoolVersion_ = other.greenPoolVersion_;
             onChanged();
           }
-          this.mergeUnknownFields(other.unknownFields);
+          this.mergeUnknownFields(other.getUnknownFields());
           onChanged();
           return this;
         }
@@ -3324,19 +2914,63 @@ public Builder mergeFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws java.io.IOException {
-          com.google.container.v1.NodePool.UpdateInfo.BlueGreenInfo parsedMessage = null;
+          if (extensionRegistry == null) {
+            throw new java.lang.NullPointerException();
+          }
           try {
-            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+            boolean done = false;
+            while (!done) {
+              int tag = input.readTag();
+              switch (tag) {
+                case 0:
+                  done = true;
+                  break;
+                case 8:
+                  {
+                    phase_ = input.readEnum();
+
+                    break;
+                  } // case 8
+                case 18:
+                  {
+                    java.lang.String s = input.readStringRequireUtf8();
+                    ensureBlueInstanceGroupUrlsIsMutable();
+                    blueInstanceGroupUrls_.add(s);
+                    break;
+                  } // case 18
+                case 26:
+                  {
+                    java.lang.String s = input.readStringRequireUtf8();
+                    ensureGreenInstanceGroupUrlsIsMutable();
+                    greenInstanceGroupUrls_.add(s);
+                    break;
+                  } // case 26
+                case 34:
+                  {
+                    bluePoolDeletionStartTime_ = input.readStringRequireUtf8();
+
+                    break;
+                  } // case 34
+                case 42:
+                  {
+                    greenPoolVersion_ = input.readStringRequireUtf8();
+
+                    break;
+                  } // case 42
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
           } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-            parsedMessage =
-                (com.google.container.v1.NodePool.UpdateInfo.BlueGreenInfo)
-                    e.getUnfinishedMessage();
             throw e.unwrapIOException();
           } finally {
-            if (parsedMessage != null) {
-              mergeFrom(parsedMessage);
-            }
-          }
+            onChanged();
+          } // finally
           return this;
         }
 
@@ -4061,7 +3695,19 @@ public BlueGreenInfo parsePartialFrom(
                 com.google.protobuf.CodedInputStream input,
                 com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                 throws com.google.protobuf.InvalidProtocolBufferException {
-              return new BlueGreenInfo(input, extensionRegistry);
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
             }
           };
 
@@ -4146,7 +3792,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (blueGreenInfo_ != null) {
         output.writeMessage(1, getBlueGreenInfo());
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -4158,7 +3804,7 @@ public int getSerializedSize() {
       if (blueGreenInfo_ != null) {
         size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getBlueGreenInfo());
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -4178,7 +3824,7 @@ public boolean equals(final java.lang.Object obj) {
       if (hasBlueGreenInfo()) {
         if (!getBlueGreenInfo().equals(other.getBlueGreenInfo())) return false;
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -4193,7 +3839,7 @@ public int hashCode() {
         hash = (37 * hash) + BLUE_GREEN_INFO_FIELD_NUMBER;
         hash = (53 * hash) + getBlueGreenInfo().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -4325,17 +3971,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1.NodePool.UpdateInfo.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -4433,7 +4072,7 @@ public Builder mergeFrom(com.google.container.v1.NodePool.UpdateInfo other) {
         if (other.hasBlueGreenInfo()) {
           mergeBlueGreenInfo(other.getBlueGreenInfo());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -4448,17 +4087,37 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.NodePool.UpdateInfo parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  input.readMessage(getBlueGreenInfoFieldBuilder().getBuilder(), extensionRegistry);
+
+                  break;
+                } // case 10
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage = (com.google.container.v1.NodePool.UpdateInfo) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -4685,7 +4344,19 @@ public UpdateInfo parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new UpdateInfo(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -5185,7 +4856,7 @@ public com.google.container.v1.NodePool.Status getStatus() {
    * string status_message = 104 [deprecated = true];
    *
    * @deprecated google.container.v1.NodePool.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2958
+   *     google/container/v1/cluster_service.proto;l=2971
    * @return The statusMessage.
    */
   @java.lang.Override
@@ -5213,7 +4884,7 @@ public java.lang.String getStatusMessage() {
    * string status_message = 104 [deprecated = true];
    *
    * @deprecated google.container.v1.NodePool.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2958
+   *     google/container/v1/cluster_service.proto;l=2971
    * @return The bytes for statusMessage.
    */
   @java.lang.Override
@@ -5637,7 +5308,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (updateInfo_ != null) {
       output.writeMessage(109, getUpdateInfo());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -5707,7 +5378,7 @@ public int getSerializedSize() {
     if (updateInfo_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(109, getUpdateInfo());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -5760,7 +5431,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasUpdateInfo()) {
       if (!getUpdateInfo().equals(other.getUpdateInfo())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -5825,7 +5496,7 @@ public int hashCode() {
       hash = (37 * hash) + UPDATE_INFO_FIELD_NUMBER;
       hash = (53 * hash) + getUpdateInfo().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -5958,19 +5629,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NodePool.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getConditionsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -6024,10 +5686,11 @@ public Builder clear() {
       }
       if (conditionsBuilder_ == null) {
         conditions_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000004);
       } else {
+        conditions_ = null;
         conditionsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000004);
       podIpv4CidrSize_ = 0;
 
       if (upgradeSettingsBuilder_ == null) {
@@ -6272,7 +5935,7 @@ public Builder mergeFrom(com.google.container.v1.NodePool other) {
       if (other.hasUpdateInfo()) {
         mergeUpdateInfo(other.getUpdateInfo());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -6287,17 +5950,143 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodePool parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(getConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 18
+            case 24:
+              {
+                initialNodeCount_ = input.readInt32();
+
+                break;
+              } // case 24
+            case 34:
+              {
+                input.readMessage(getAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                input.readMessage(getManagementFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 50:
+              {
+                input.readMessage(
+                    getMaxPodsConstraintFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 50
+            case 56:
+              {
+                podIpv4CidrSize_ = input.readInt32();
+
+                break;
+              } // case 56
+            case 106:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureLocationsIsMutable();
+                locations_.add(s);
+                break;
+              } // case 106
+            case 114:
+              {
+                input.readMessage(getNetworkConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 114
+            case 802:
+              {
+                selfLink_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 802
+            case 810:
+              {
+                version_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 810
+            case 818:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureInstanceGroupUrlsIsMutable();
+                instanceGroupUrls_.add(s);
+                break;
+              } // case 818
+            case 824:
+              {
+                status_ = input.readEnum();
+
+                break;
+              } // case 824
+            case 834:
+              {
+                statusMessage_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 834
+            case 842:
+              {
+                com.google.container.v1.StatusCondition m =
+                    input.readMessage(
+                        com.google.container.v1.StatusCondition.parser(), extensionRegistry);
+                if (conditionsBuilder_ == null) {
+                  ensureConditionsIsMutable();
+                  conditions_.add(m);
+                } else {
+                  conditionsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 842
+            case 858:
+              {
+                input.readMessage(getUpgradeSettingsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 858
+            case 874:
+              {
+                input.readMessage(getUpdateInfoFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 874
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodePool) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -7597,7 +7386,7 @@ public Builder clearStatus() {
      * string status_message = 104 [deprecated = true];
      *
      * @deprecated google.container.v1.NodePool.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2958
+     *     google/container/v1/cluster_service.proto;l=2971
      * @return The statusMessage.
      */
     @java.lang.Deprecated
@@ -7624,7 +7413,7 @@ public java.lang.String getStatusMessage() {
      * string status_message = 104 [deprecated = true];
      *
      * @deprecated google.container.v1.NodePool.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2958
+     *     google/container/v1/cluster_service.proto;l=2971
      * @return The bytes for statusMessage.
      */
     @java.lang.Deprecated
@@ -7651,7 +7440,7 @@ public com.google.protobuf.ByteString getStatusMessageBytes() {
      * string status_message = 104 [deprecated = true];
      *
      * @deprecated google.container.v1.NodePool.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2958
+     *     google/container/v1/cluster_service.proto;l=2971
      * @param value The statusMessage to set.
      * @return This builder for chaining.
      */
@@ -7677,7 +7466,7 @@ public Builder setStatusMessage(java.lang.String value) {
      * string status_message = 104 [deprecated = true];
      *
      * @deprecated google.container.v1.NodePool.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2958
+     *     google/container/v1/cluster_service.proto;l=2971
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -7699,7 +7488,7 @@ public Builder clearStatusMessage() {
      * string status_message = 104 [deprecated = true];
      *
      * @deprecated google.container.v1.NodePool.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2958
+     *     google/container/v1/cluster_service.proto;l=2971
      * @param value The bytes for statusMessage to set.
      * @return This builder for chaining.
      */
@@ -9122,7 +8911,18 @@ public NodePool parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodePool(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolAutoConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolAutoConfig.java
index 3aff2bd3..7daa3b15 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolAutoConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolAutoConfig.java
@@ -51,61 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodePoolAutoConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.NetworkTags.Builder subBuilder = null;
-              if (networkTags_ != null) {
-                subBuilder = networkTags_.toBuilder();
-              }
-              networkTags_ =
-                  input.readMessage(
-                      com.google.container.v1.NetworkTags.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkTags_);
-                networkTags_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodePoolAutoConfig_descriptor;
@@ -195,7 +140,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (networkTags_ != null) {
       output.writeMessage(1, getNetworkTags());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -207,7 +152,7 @@ public int getSerializedSize() {
     if (networkTags_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getNetworkTags());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -227,7 +172,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasNetworkTags()) {
       if (!getNetworkTags().equals(other.getNetworkTags())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -242,7 +187,7 @@ public int hashCode() {
       hash = (37 * hash) + NETWORK_TAGS_FIELD_NUMBER;
       hash = (53 * hash) + getNetworkTags().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -372,17 +317,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NodePoolAutoConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -478,7 +416,7 @@ public Builder mergeFrom(com.google.container.v1.NodePoolAutoConfig other) {
       if (other.hasNetworkTags()) {
         mergeNetworkTags(other.getNetworkTags());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -493,17 +431,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodePoolAutoConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getNetworkTagsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodePoolAutoConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -751,7 +709,18 @@ public NodePoolAutoConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodePoolAutoConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolAutoscaling.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolAutoscaling.java
index a48bd3d1..5977f222 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolAutoscaling.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolAutoscaling.java
@@ -53,82 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodePoolAutoscaling(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              minNodeCount_ = input.readInt32();
-              break;
-            }
-          case 24:
-            {
-              maxNodeCount_ = input.readInt32();
-              break;
-            }
-          case 32:
-            {
-              autoprovisioned_ = input.readBool();
-              break;
-            }
-          case 40:
-            {
-              int rawValue = input.readEnum();
-
-              locationPolicy_ = rawValue;
-              break;
-            }
-          case 48:
-            {
-              totalMinNodeCount_ = input.readInt32();
-              break;
-            }
-          case 56:
-            {
-              totalMaxNodeCount_ = input.readInt32();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodePoolAutoscaling_descriptor;
@@ -495,7 +419,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (totalMaxNodeCount_ != 0) {
       output.writeInt32(7, totalMaxNodeCount_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -527,7 +451,7 @@ public int getSerializedSize() {
     if (totalMaxNodeCount_ != 0) {
       size += com.google.protobuf.CodedOutputStream.computeInt32Size(7, totalMaxNodeCount_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -550,7 +474,7 @@ public boolean equals(final java.lang.Object obj) {
     if (locationPolicy_ != other.locationPolicy_) return false;
     if (getTotalMinNodeCount() != other.getTotalMinNodeCount()) return false;
     if (getTotalMaxNodeCount() != other.getTotalMaxNodeCount()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -575,7 +499,7 @@ public int hashCode() {
     hash = (53 * hash) + getTotalMinNodeCount();
     hash = (37 * hash) + TOTAL_MAX_NODE_COUNT_FIELD_NUMBER;
     hash = (53 * hash) + getTotalMaxNodeCount();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -705,17 +629,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NodePoolAutoscaling.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -839,7 +756,7 @@ public Builder mergeFrom(com.google.container.v1.NodePoolAutoscaling other) {
       if (other.getTotalMaxNodeCount() != 0) {
         setTotalMaxNodeCount(other.getTotalMaxNodeCount());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -854,17 +771,73 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodePoolAutoscaling parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                minNodeCount_ = input.readInt32();
+
+                break;
+              } // case 16
+            case 24:
+              {
+                maxNodeCount_ = input.readInt32();
+
+                break;
+              } // case 24
+            case 32:
+              {
+                autoprovisioned_ = input.readBool();
+
+                break;
+              } // case 32
+            case 40:
+              {
+                locationPolicy_ = input.readEnum();
+
+                break;
+              } // case 40
+            case 48:
+              {
+                totalMinNodeCount_ = input.readInt32();
+
+                break;
+              } // case 48
+            case 56:
+              {
+                totalMaxNodeCount_ = input.readInt32();
+
+                break;
+              } // case 56
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodePoolAutoscaling) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1330,7 +1303,18 @@ public NodePoolAutoscaling parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodePoolAutoscaling(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolDefaults.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolDefaults.java
index f2914be1..5c857df3 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolDefaults.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolDefaults.java
@@ -50,61 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodePoolDefaults(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.NodeConfigDefaults.Builder subBuilder = null;
-              if (nodeConfigDefaults_ != null) {
-                subBuilder = nodeConfigDefaults_.toBuilder();
-              }
-              nodeConfigDefaults_ =
-                  input.readMessage(
-                      com.google.container.v1.NodeConfigDefaults.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodeConfigDefaults_);
-                nodeConfigDefaults_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodePoolDefaults_descriptor;
@@ -185,7 +130,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (nodeConfigDefaults_ != null) {
       output.writeMessage(1, getNodeConfigDefaults());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -197,7 +142,7 @@ public int getSerializedSize() {
     if (nodeConfigDefaults_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getNodeConfigDefaults());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -216,7 +161,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasNodeConfigDefaults()) {
       if (!getNodeConfigDefaults().equals(other.getNodeConfigDefaults())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -231,7 +176,7 @@ public int hashCode() {
       hash = (37 * hash) + NODE_CONFIG_DEFAULTS_FIELD_NUMBER;
       hash = (53 * hash) + getNodeConfigDefaults().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -360,17 +305,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NodePoolDefaults.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -466,7 +404,7 @@ public Builder mergeFrom(com.google.container.v1.NodePoolDefaults other) {
       if (other.hasNodeConfigDefaults()) {
         mergeNodeConfigDefaults(other.getNodeConfigDefaults());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -481,17 +419,38 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodePoolDefaults parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getNodeConfigDefaultsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodePoolDefaults) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -713,7 +672,18 @@ public NodePoolDefaults parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodePoolDefaults(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolLoggingConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolLoggingConfig.java
new file mode 100644
index 00000000..226f775d
--- /dev/null
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolLoggingConfig.java
@@ -0,0 +1,703 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/container/v1/cluster_service.proto
+
+package com.google.container.v1;
+
+/**
+ *
+ *
+ * 
+ * NodePoolLoggingConfig specifies logging configuration for nodepools.
+ * 

+ *
+ * Protobuf type {@code google.container.v1.NodePoolLoggingConfig}
+ */
+public final class NodePoolLoggingConfig extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.container.v1.NodePoolLoggingConfig)
+    NodePoolLoggingConfigOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use NodePoolLoggingConfig.newBuilder() to construct.
+  private NodePoolLoggingConfig(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private NodePoolLoggingConfig() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new NodePoolLoggingConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.container.v1.ClusterServiceProto
+        .internal_static_google_container_v1_NodePoolLoggingConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.container.v1.ClusterServiceProto
+        .internal_static_google_container_v1_NodePoolLoggingConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.container.v1.NodePoolLoggingConfig.class,
+            com.google.container.v1.NodePoolLoggingConfig.Builder.class);
+  }
+
+  public static final int VARIANT_CONFIG_FIELD_NUMBER = 1;
+  private com.google.container.v1.LoggingVariantConfig variantConfig_;
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1.LoggingVariantConfig variant_config = 1;
+   *
+   * @return Whether the variantConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasVariantConfig() {
+    return variantConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1.LoggingVariantConfig variant_config = 1;
+   *
+   * @return The variantConfig.
+   */
+  @java.lang.Override
+  public com.google.container.v1.LoggingVariantConfig getVariantConfig() {
+    return variantConfig_ == null
+        ? com.google.container.v1.LoggingVariantConfig.getDefaultInstance()
+        : variantConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1.LoggingVariantConfig variant_config = 1;
+   */
+  @java.lang.Override
+  public com.google.container.v1.LoggingVariantConfigOrBuilder getVariantConfigOrBuilder() {
+    return getVariantConfig();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (variantConfig_ != null) {
+      output.writeMessage(1, getVariantConfig());
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (variantConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getVariantConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.container.v1.NodePoolLoggingConfig)) {
+      return super.equals(obj);
+    }
+    com.google.container.v1.NodePoolLoggingConfig other =
+        (com.google.container.v1.NodePoolLoggingConfig) obj;
+
+    if (hasVariantConfig() != other.hasVariantConfig()) return false;
+    if (hasVariantConfig()) {
+      if (!getVariantConfig().equals(other.getVariantConfig())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasVariantConfig()) {
+      hash = (37 * hash) + VARIANT_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getVariantConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.container.v1.NodePoolLoggingConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * NodePoolLoggingConfig specifies logging configuration for nodepools.
+   * 

+   *
+   * Protobuf type {@code google.container.v1.NodePoolLoggingConfig}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.container.v1.NodePoolLoggingConfig)
+      com.google.container.v1.NodePoolLoggingConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.container.v1.ClusterServiceProto
+          .internal_static_google_container_v1_NodePoolLoggingConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.container.v1.ClusterServiceProto
+          .internal_static_google_container_v1_NodePoolLoggingConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.container.v1.NodePoolLoggingConfig.class,
+              com.google.container.v1.NodePoolLoggingConfig.Builder.class);
+    }
+
+    // Construct using com.google.container.v1.NodePoolLoggingConfig.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (variantConfigBuilder_ == null) {
+        variantConfig_ = null;
+      } else {
+        variantConfig_ = null;
+        variantConfigBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.container.v1.ClusterServiceProto
+          .internal_static_google_container_v1_NodePoolLoggingConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.container.v1.NodePoolLoggingConfig getDefaultInstanceForType() {
+      return com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.container.v1.NodePoolLoggingConfig build() {
+      com.google.container.v1.NodePoolLoggingConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.container.v1.NodePoolLoggingConfig buildPartial() {
+      com.google.container.v1.NodePoolLoggingConfig result =
+          new com.google.container.v1.NodePoolLoggingConfig(this);
+      if (variantConfigBuilder_ == null) {
+        result.variantConfig_ = variantConfig_;
+      } else {
+        result.variantConfig_ = variantConfigBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.container.v1.NodePoolLoggingConfig) {
+        return mergeFrom((com.google.container.v1.NodePoolLoggingConfig) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.container.v1.NodePoolLoggingConfig other) {
+      if (other == com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()) return this;
+      if (other.hasVariantConfig()) {
+        mergeVariantConfig(other.getVariantConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getVariantConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private com.google.container.v1.LoggingVariantConfig variantConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1.LoggingVariantConfig,
+            com.google.container.v1.LoggingVariantConfig.Builder,
+            com.google.container.v1.LoggingVariantConfigOrBuilder>
+        variantConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig variant_config = 1;
+     *
+     * @return Whether the variantConfig field is set.
+     */
+    public boolean hasVariantConfig() {
+      return variantConfigBuilder_ != null || variantConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig variant_config = 1;
+     *
+     * @return The variantConfig.
+     */
+    public com.google.container.v1.LoggingVariantConfig getVariantConfig() {
+      if (variantConfigBuilder_ == null) {
+        return variantConfig_ == null
+            ? com.google.container.v1.LoggingVariantConfig.getDefaultInstance()
+            : variantConfig_;
+      } else {
+        return variantConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig variant_config = 1;
+     */
+    public Builder setVariantConfig(com.google.container.v1.LoggingVariantConfig value) {
+      if (variantConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        variantConfig_ = value;
+        onChanged();
+      } else {
+        variantConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig variant_config = 1;
+     */
+    public Builder setVariantConfig(
+        com.google.container.v1.LoggingVariantConfig.Builder builderForValue) {
+      if (variantConfigBuilder_ == null) {
+        variantConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        variantConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig variant_config = 1;
+     */
+    public Builder mergeVariantConfig(com.google.container.v1.LoggingVariantConfig value) {
+      if (variantConfigBuilder_ == null) {
+        if (variantConfig_ != null) {
+          variantConfig_ =
+              com.google.container.v1.LoggingVariantConfig.newBuilder(variantConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          variantConfig_ = value;
+        }
+        onChanged();
+      } else {
+        variantConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig variant_config = 1;
+     */
+    public Builder clearVariantConfig() {
+      if (variantConfigBuilder_ == null) {
+        variantConfig_ = null;
+        onChanged();
+      } else {
+        variantConfig_ = null;
+        variantConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig variant_config = 1;
+     */
+    public com.google.container.v1.LoggingVariantConfig.Builder getVariantConfigBuilder() {
+
+      onChanged();
+      return getVariantConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig variant_config = 1;
+     */
+    public com.google.container.v1.LoggingVariantConfigOrBuilder getVariantConfigOrBuilder() {
+      if (variantConfigBuilder_ != null) {
+        return variantConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return variantConfig_ == null
+            ? com.google.container.v1.LoggingVariantConfig.getDefaultInstance()
+            : variantConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1.LoggingVariantConfig variant_config = 1;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1.LoggingVariantConfig,
+            com.google.container.v1.LoggingVariantConfig.Builder,
+            com.google.container.v1.LoggingVariantConfigOrBuilder>
+        getVariantConfigFieldBuilder() {
+      if (variantConfigBuilder_ == null) {
+        variantConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.container.v1.LoggingVariantConfig,
+                com.google.container.v1.LoggingVariantConfig.Builder,
+                com.google.container.v1.LoggingVariantConfigOrBuilder>(
+                getVariantConfig(), getParentForChildren(), isClean());
+        variantConfig_ = null;
+      }
+      return variantConfigBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.container.v1.NodePoolLoggingConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.container.v1.NodePoolLoggingConfig)
+  private static final com.google.container.v1.NodePoolLoggingConfig DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.container.v1.NodePoolLoggingConfig();
+  }
+
+  public static com.google.container.v1.NodePoolLoggingConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public NodePoolLoggingConfig parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.container.v1.NodePoolLoggingConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolLoggingConfigOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolLoggingConfigOrBuilder.java
new file mode 100644
index 00000000..db60ea9d
--- /dev/null
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolLoggingConfigOrBuilder.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/container/v1/cluster_service.proto
+
+package com.google.container.v1;
+
+public interface NodePoolLoggingConfigOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.container.v1.NodePoolLoggingConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1.LoggingVariantConfig variant_config = 1;
+   *
+   * @return Whether the variantConfig field is set.
+   */
+  boolean hasVariantConfig();
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1.LoggingVariantConfig variant_config = 1;
+   *
+   * @return The variantConfig.
+   */
+  com.google.container.v1.LoggingVariantConfig getVariantConfig();
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1.LoggingVariantConfig variant_config = 1;
+   */
+  com.google.container.v1.LoggingVariantConfigOrBuilder getVariantConfigOrBuilder();
+}
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolOrBuilder.java
index 4835fcfc..af8e0ce1 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodePoolOrBuilder.java
@@ -370,7 +370,7 @@ public interface NodePoolOrBuilder
    * string status_message = 104 [deprecated = true];
    *
    * @deprecated google.container.v1.NodePool.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2958
+   *     google/container/v1/cluster_service.proto;l=2971
    * @return The statusMessage.
    */
   @java.lang.Deprecated
@@ -387,7 +387,7 @@ public interface NodePoolOrBuilder
    * string status_message = 104 [deprecated = true];
    *
    * @deprecated google.container.v1.NodePool.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2958
+   *     google/container/v1/cluster_service.proto;l=2971
    * @return The bytes for statusMessage.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeTaint.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeTaint.java
index e9935066..1825a43c 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeTaint.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeTaint.java
@@ -58,66 +58,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeTaint(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              key_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              value_ = s;
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              effect_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodeTaint_descriptor;
@@ -469,7 +409,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (effect_ != com.google.container.v1.NodeTaint.Effect.EFFECT_UNSPECIFIED.getNumber()) {
       output.writeEnum(3, effect_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -487,7 +427,7 @@ public int getSerializedSize() {
     if (effect_ != com.google.container.v1.NodeTaint.Effect.EFFECT_UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, effect_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -505,7 +445,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getKey().equals(other.getKey())) return false;
     if (!getValue().equals(other.getValue())) return false;
     if (effect_ != other.effect_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -522,7 +462,7 @@ public int hashCode() {
     hash = (53 * hash) + getValue().hashCode();
     hash = (37 * hash) + EFFECT_FIELD_NUMBER;
     hash = (53 * hash) + effect_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -654,17 +594,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NodeTaint.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -765,7 +698,7 @@ public Builder mergeFrom(com.google.container.v1.NodeTaint other) {
       if (other.effect_ != 0) {
         setEffectValue(other.getEffectValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -780,17 +713,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodeTaint parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                key_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                value_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                effect_ = input.readEnum();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodeTaint) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1129,7 +1094,18 @@ public NodeTaint parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeTaint(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeTaints.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeTaints.java
index 82b6e965..25da0110 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeTaints.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NodeTaints.java
@@ -53,59 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeTaints(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                taints_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              taints_.add(
-                  input.readMessage(com.google.container.v1.NodeTaint.parser(), extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        taints_ = java.util.Collections.unmodifiableList(taints_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NodeTaints_descriptor;
@@ -207,7 +154,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < taints_.size(); i++) {
       output.writeMessage(1, taints_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -219,7 +166,7 @@ public int getSerializedSize() {
     for (int i = 0; i < taints_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, taints_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -235,7 +182,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.NodeTaints other = (com.google.container.v1.NodeTaints) obj;
 
     if (!getTaintsList().equals(other.getTaintsList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -250,7 +197,7 @@ public int hashCode() {
       hash = (37 * hash) + TAINTS_FIELD_NUMBER;
       hash = (53 * hash) + getTaintsList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -379,19 +326,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NodeTaints.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getTaintsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -399,10 +337,11 @@ public Builder clear() {
       super.clear();
       if (taintsBuilder_ == null) {
         taints_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        taints_ = null;
         taintsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       return this;
     }
 
@@ -515,7 +454,7 @@ public Builder mergeFrom(com.google.container.v1.NodeTaints other) {
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -530,17 +469,44 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NodeTaints parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1.NodeTaint m =
+                    input.readMessage(
+                        com.google.container.v1.NodeTaint.parser(), extensionRegistry);
+                if (taintsBuilder_ == null) {
+                  ensureTaintsIsMutable();
+                  taints_.add(m);
+                } else {
+                  taintsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NodeTaints) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -924,7 +890,18 @@ public NodeTaints parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeTaints(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NotificationConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NotificationConfig.java
index 5f17210c..bfba5251 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NotificationConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/NotificationConfig.java
@@ -50,62 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NotificationConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.NotificationConfig.PubSub.Builder subBuilder = null;
-              if (pubsub_ != null) {
-                subBuilder = pubsub_.toBuilder();
-              }
-              pubsub_ =
-                  input.readMessage(
-                      com.google.container.v1.NotificationConfig.PubSub.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(pubsub_);
-                pubsub_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_NotificationConfig_descriptor;
@@ -421,74 +365,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private PubSub(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                enabled_ = input.readBool();
-                break;
-              }
-            case 18:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                topic_ = s;
-                break;
-              }
-            case 26:
-              {
-                com.google.container.v1.NotificationConfig.Filter.Builder subBuilder = null;
-                if (filter_ != null) {
-                  subBuilder = filter_.toBuilder();
-                }
-                filter_ =
-                    input.readMessage(
-                        com.google.container.v1.NotificationConfig.Filter.parser(),
-                        extensionRegistry);
-                if (subBuilder != null) {
-                  subBuilder.mergeFrom(filter_);
-                  filter_ = subBuilder.buildPartial();
-                }
-
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_NotificationConfig_PubSub_descriptor;
@@ -650,7 +526,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (filter_ != null) {
         output.writeMessage(3, getFilter());
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -668,7 +544,7 @@ public int getSerializedSize() {
       if (filter_ != null) {
         size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getFilter());
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -690,7 +566,7 @@ public boolean equals(final java.lang.Object obj) {
       if (hasFilter()) {
         if (!getFilter().equals(other.getFilter())) return false;
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -709,7 +585,7 @@ public int hashCode() {
         hash = (37 * hash) + FILTER_FIELD_NUMBER;
         hash = (53 * hash) + getFilter().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -840,17 +716,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1.NotificationConfig.PubSub.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -962,7 +831,7 @@ public Builder mergeFrom(com.google.container.v1.NotificationConfig.PubSub other
         if (other.hasFilter()) {
           mergeFilter(other.getFilter());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -977,18 +846,49 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.NotificationConfig.PubSub parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  enabled_ = input.readBool();
+
+                  break;
+                } // case 8
+              case 18:
+                {
+                  topic_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 18
+              case 26:
+                {
+                  input.readMessage(getFilterFieldBuilder().getBuilder(), extensionRegistry);
+
+                  break;
+                } // case 26
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1.NotificationConfig.PubSub) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1392,7 +1292,19 @@ public PubSub parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new PubSub(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1516,74 +1428,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private Filter(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                int rawValue = input.readEnum();
-                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                  eventType_ = new java.util.ArrayList();
-                  mutable_bitField0_ |= 0x00000001;
-                }
-                eventType_.add(rawValue);
-                break;
-              }
-            case 10:
-              {
-                int length = input.readRawVarint32();
-                int oldLimit = input.pushLimit(length);
-                while (input.getBytesUntilLimit() > 0) {
-                  int rawValue = input.readEnum();
-                  if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                    eventType_ = new java.util.ArrayList();
-                    mutable_bitField0_ |= 0x00000001;
-                  }
-                  eventType_.add(rawValue);
-                }
-                input.popLimit(oldLimit);
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        if (((mutable_bitField0_ & 0x00000001) != 0)) {
-          eventType_ = java.util.Collections.unmodifiableList(eventType_);
-        }
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_NotificationConfig_Filter_descriptor;
@@ -1720,7 +1564,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       for (int i = 0; i < eventType_.size(); i++) {
         output.writeEnumNoTag(eventType_.get(i));
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -1741,7 +1585,7 @@ public int getSerializedSize() {
         }
         eventTypeMemoizedSerializedSize = dataSize;
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -1758,7 +1602,7 @@ public boolean equals(final java.lang.Object obj) {
           (com.google.container.v1.NotificationConfig.Filter) obj;
 
       if (!eventType_.equals(other.eventType_)) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -1773,7 +1617,7 @@ public int hashCode() {
         hash = (37 * hash) + EVENT_TYPE_FIELD_NUMBER;
         hash = (53 * hash) + eventType_.hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -1907,17 +1751,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1.NotificationConfig.Filter.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -2020,7 +1857,7 @@ public Builder mergeFrom(com.google.container.v1.NotificationConfig.Filter other
           }
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -2035,18 +1872,50 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.NotificationConfig.Filter parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  int tmpRaw = input.readEnum();
+                  ensureEventTypeIsMutable();
+                  eventType_.add(tmpRaw);
+                  break;
+                } // case 8
+              case 10:
+                {
+                  int length = input.readRawVarint32();
+                  int oldLimit = input.pushLimit(length);
+                  while (input.getBytesUntilLimit() > 0) {
+                    int tmpRaw = input.readEnum();
+                    ensureEventTypeIsMutable();
+                    eventType_.add(tmpRaw);
+                  }
+                  input.popLimit(oldLimit);
+                  break;
+                } // case 10
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1.NotificationConfig.Filter) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -2309,7 +2178,19 @@ public Filter parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new Filter(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -2393,7 +2274,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (pubsub_ != null) {
       output.writeMessage(1, getPubsub());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -2405,7 +2286,7 @@ public int getSerializedSize() {
     if (pubsub_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getPubsub());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -2425,7 +2306,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasPubsub()) {
       if (!getPubsub().equals(other.getPubsub())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -2440,7 +2321,7 @@ public int hashCode() {
       hash = (37 * hash) + PUBSUB_FIELD_NUMBER;
       hash = (53 * hash) + getPubsub().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -2569,17 +2450,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.NotificationConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -2675,7 +2549,7 @@ public Builder mergeFrom(com.google.container.v1.NotificationConfig other) {
       if (other.hasPubsub()) {
         mergePubsub(other.getPubsub());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -2690,17 +2564,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.NotificationConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getPubsubFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.NotificationConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2922,7 +2816,18 @@ public NotificationConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NotificationConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Operation.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Operation.java
index 9654bfc8..57a08f1e 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Operation.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/Operation.java
@@ -65,183 +65,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private Operation(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              operationType_ = rawValue;
-              break;
-            }
-          case 32:
-            {
-              int rawValue = input.readEnum();
-
-              status_ = rawValue;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              statusMessage_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              selfLink_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              targetLink_ = s;
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              detail_ = s;
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              location_ = s;
-              break;
-            }
-          case 82:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              startTime_ = s;
-              break;
-            }
-          case 90:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              endTime_ = s;
-              break;
-            }
-          case 98:
-            {
-              com.google.container.v1.OperationProgress.Builder subBuilder = null;
-              if (progress_ != null) {
-                subBuilder = progress_.toBuilder();
-              }
-              progress_ =
-                  input.readMessage(
-                      com.google.container.v1.OperationProgress.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(progress_);
-                progress_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 106:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                clusterConditions_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              clusterConditions_.add(
-                  input.readMessage(
-                      com.google.container.v1.StatusCondition.parser(), extensionRegistry));
-              break;
-            }
-          case 114:
-            {
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                nodepoolConditions_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              nodepoolConditions_.add(
-                  input.readMessage(
-                      com.google.container.v1.StatusCondition.parser(), extensionRegistry));
-              break;
-            }
-          case 122:
-            {
-              com.google.rpc.Status.Builder subBuilder = null;
-              if (error_ != null) {
-                subBuilder = error_.toBuilder();
-              }
-              error_ = input.readMessage(com.google.rpc.Status.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(error_);
-                error_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        clusterConditions_ = java.util.Collections.unmodifiableList(clusterConditions_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        nodepoolConditions_ = java.util.Collections.unmodifiableList(nodepoolConditions_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_Operation_descriptor;
@@ -986,7 +809,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.Operation.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1956
+   *     google/container/v1/cluster_service.proto;l=1966
    * @return The zone.
    */
   @java.lang.Override
@@ -1014,7 +837,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.Operation.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1956
+   *     google/container/v1/cluster_service.proto;l=1966
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -1167,7 +990,7 @@ public com.google.protobuf.ByteString getDetailBytes() {
    * 
    *
    * @deprecated google.container.v1.Operation.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1969
+   *     google/container/v1/cluster_service.proto;l=1979
    * @return The statusMessage.
    */
   @java.lang.Override
@@ -1196,7 +1019,7 @@ public java.lang.String getStatusMessage() {
    * 
    *
    * @deprecated google.container.v1.Operation.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1969
+   *     google/container/v1/cluster_service.proto;l=1979
    * @return The bytes for statusMessage.
    */
   @java.lang.Override
@@ -1808,7 +1631,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (error_ != null) {
       output.writeMessage(15, getError());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1864,7 +1687,7 @@ public int getSerializedSize() {
     if (error_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(15, getError());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1900,7 +1723,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasError()) {
       if (!getError().equals(other.getError())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1949,7 +1772,7 @@ public int hashCode() {
       hash = (37 * hash) + ERROR_FIELD_NUMBER;
       hash = (53 * hash) + getError().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -2078,20 +1901,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.Operation.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getClusterConditionsFieldBuilder();
-        getNodepoolConditionsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -2127,16 +1940,18 @@ public Builder clear() {
       }
       if (clusterConditionsBuilder_ == null) {
         clusterConditions_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        clusterConditions_ = null;
         clusterConditionsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       if (nodepoolConditionsBuilder_ == null) {
         nodepoolConditions_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000002);
       } else {
+        nodepoolConditions_ = null;
         nodepoolConditionsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000002);
       if (errorBuilder_ == null) {
         error_ = null;
       } else {
@@ -2360,7 +2175,7 @@ public Builder mergeFrom(com.google.container.v1.Operation other) {
       if (other.hasError()) {
         mergeError(other.getError());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -2375,17 +2190,135 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.Operation parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                operationType_ = input.readEnum();
+
+                break;
+              } // case 24
+            case 32:
+              {
+                status_ = input.readEnum();
+
+                break;
+              } // case 32
+            case 42:
+              {
+                statusMessage_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                selfLink_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 58:
+              {
+                targetLink_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                detail_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 74:
+              {
+                location_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 82:
+              {
+                startTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 82
+            case 90:
+              {
+                endTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 90
+            case 98:
+              {
+                input.readMessage(getProgressFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 98
+            case 106:
+              {
+                com.google.container.v1.StatusCondition m =
+                    input.readMessage(
+                        com.google.container.v1.StatusCondition.parser(), extensionRegistry);
+                if (clusterConditionsBuilder_ == null) {
+                  ensureClusterConditionsIsMutable();
+                  clusterConditions_.add(m);
+                } else {
+                  clusterConditionsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 106
+            case 114:
+              {
+                com.google.container.v1.StatusCondition m =
+                    input.readMessage(
+                        com.google.container.v1.StatusCondition.parser(), extensionRegistry);
+                if (nodepoolConditionsBuilder_ == null) {
+                  ensureNodepoolConditionsIsMutable();
+                  nodepoolConditions_.add(m);
+                } else {
+                  nodepoolConditionsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 114
+            case 122:
+              {
+                input.readMessage(getErrorFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 122
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.Operation) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2510,7 +2443,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.Operation.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1956
+     *     google/container/v1/cluster_service.proto;l=1966
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -2537,7 +2470,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.Operation.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1956
+     *     google/container/v1/cluster_service.proto;l=1966
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -2564,7 +2497,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.Operation.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1956
+     *     google/container/v1/cluster_service.proto;l=1966
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -2590,7 +2523,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.Operation.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1956
+     *     google/container/v1/cluster_service.proto;l=1966
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2612,7 +2545,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.Operation.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1956
+     *     google/container/v1/cluster_service.proto;l=1966
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -2930,7 +2863,7 @@ public Builder setDetailBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1.Operation.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1969
+     *     google/container/v1/cluster_service.proto;l=1979
      * @return The statusMessage.
      */
     @java.lang.Deprecated
@@ -2958,7 +2891,7 @@ public java.lang.String getStatusMessage() {
      * 
      *
      * @deprecated google.container.v1.Operation.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1969
+     *     google/container/v1/cluster_service.proto;l=1979
      * @return The bytes for statusMessage.
      */
     @java.lang.Deprecated
@@ -2986,7 +2919,7 @@ public com.google.protobuf.ByteString getStatusMessageBytes() {
      * 
      *
      * @deprecated google.container.v1.Operation.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1969
+     *     google/container/v1/cluster_service.proto;l=1979
      * @param value The statusMessage to set.
      * @return This builder for chaining.
      */
@@ -3013,7 +2946,7 @@ public Builder setStatusMessage(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1.Operation.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1969
+     *     google/container/v1/cluster_service.proto;l=1979
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -3036,7 +2969,7 @@ public Builder clearStatusMessage() {
      * 
      *
      * @deprecated google.container.v1.Operation.status_message is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=1969
+     *     google/container/v1/cluster_service.proto;l=1979
      * @param value The bytes for statusMessage to set.
      * @return This builder for chaining.
      */
@@ -4874,7 +4807,18 @@ public Operation parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new Operation(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/OperationOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/OperationOrBuilder.java
index dedb315c..c24dc5f7 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/OperationOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/OperationOrBuilder.java
@@ -60,7 +60,7 @@ public interface OperationOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.Operation.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1956
+   *     google/container/v1/cluster_service.proto;l=1966
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -77,7 +77,7 @@ public interface OperationOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.Operation.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1956
+   *     google/container/v1/cluster_service.proto;l=1966
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -171,7 +171,7 @@ public interface OperationOrBuilder
    * 
    *
    * @deprecated google.container.v1.Operation.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1969
+   *     google/container/v1/cluster_service.proto;l=1979
    * @return The statusMessage.
    */
   @java.lang.Deprecated
@@ -189,7 +189,7 @@ public interface OperationOrBuilder
    * 
    *
    * @deprecated google.container.v1.Operation.status_message is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=1969
+   *     google/container/v1/cluster_service.proto;l=1979
    * @return The bytes for statusMessage.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/OperationProgress.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/OperationProgress.java
index fa80b3a7..a2454a38 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/OperationProgress.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/OperationProgress.java
@@ -55,90 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private OperationProgress(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              status_ = rawValue;
-              break;
-            }
-          case 26:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                metrics_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              metrics_.add(
-                  input.readMessage(
-                      com.google.container.v1.OperationProgress.Metric.parser(),
-                      extensionRegistry));
-              break;
-            }
-          case 34:
-            {
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                stages_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              stages_.add(
-                  input.readMessage(
-                      com.google.container.v1.OperationProgress.parser(), extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        metrics_ = java.util.Collections.unmodifiableList(metrics_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        stages_ = java.util.Collections.unmodifiableList(stages_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_OperationProgress_descriptor;
@@ -307,71 +223,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private Metric(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                name_ = s;
-                break;
-              }
-            case 16:
-              {
-                value_ = input.readInt64();
-                valueCase_ = 2;
-                break;
-              }
-            case 25:
-              {
-                value_ = input.readDouble();
-                valueCase_ = 3;
-                break;
-              }
-            case 34:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-                valueCase_ = 4;
-                value_ = s;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_OperationProgress_Metric_descriptor;
@@ -652,7 +503,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (valueCase_ == 4) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 4, value_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -677,7 +528,7 @@ public int getSerializedSize() {
       if (valueCase_ == 4) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, value_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -709,7 +560,7 @@ public boolean equals(final java.lang.Object obj) {
         case 0:
         default:
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -741,7 +592,7 @@ public int hashCode() {
         case 0:
         default:
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -872,17 +723,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1.OperationProgress.Metric.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -1009,7 +853,7 @@ public Builder mergeFrom(com.google.container.v1.OperationProgress.Metric other)
               break;
             }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -1024,18 +868,56 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.OperationProgress.Metric parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  name_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 10
+              case 16:
+                {
+                  value_ = input.readInt64();
+                  valueCase_ = 2;
+                  break;
+                } // case 16
+              case 25:
+                {
+                  value_ = input.readDouble();
+                  valueCase_ = 3;
+                  break;
+                } // case 25
+              case 34:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+                  valueCase_ = 4;
+                  value_ = s;
+                  break;
+                } // case 34
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1.OperationProgress.Metric) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1464,7 +1346,19 @@ public Metric parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new Metric(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1761,7 +1655,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < stages_.size(); i++) {
       output.writeMessage(4, stages_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1782,7 +1676,7 @@ public int getSerializedSize() {
     for (int i = 0; i < stages_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, stages_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1802,7 +1696,7 @@ public boolean equals(final java.lang.Object obj) {
     if (status_ != other.status_) return false;
     if (!getMetricsList().equals(other.getMetricsList())) return false;
     if (!getStagesList().equals(other.getStagesList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1825,7 +1719,7 @@ public int hashCode() {
       hash = (37 * hash) + STAGES_FIELD_NUMBER;
       hash = (53 * hash) + getStagesList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1954,20 +1848,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.OperationProgress.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getMetricsFieldBuilder();
-        getStagesFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -1979,16 +1863,18 @@ public Builder clear() {
 
       if (metricsBuilder_ == null) {
         metrics_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        metrics_ = null;
         metricsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       if (stagesBuilder_ == null) {
         stages_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000002);
       } else {
+        stages_ = null;
         stagesBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000002);
       return this;
     }
 
@@ -2147,7 +2033,7 @@ public Builder mergeFrom(com.google.container.v1.OperationProgress other) {
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -2162,17 +2048,70 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.OperationProgress parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                status_ = input.readEnum();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                com.google.container.v1.OperationProgress.Metric m =
+                    input.readMessage(
+                        com.google.container.v1.OperationProgress.Metric.parser(),
+                        extensionRegistry);
+                if (metricsBuilder_ == null) {
+                  ensureMetricsIsMutable();
+                  metrics_.add(m);
+                } else {
+                  metricsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 26
+            case 34:
+              {
+                com.google.container.v1.OperationProgress m =
+                    input.readMessage(
+                        com.google.container.v1.OperationProgress.parser(), extensionRegistry);
+                if (stagesBuilder_ == null) {
+                  ensureStagesIsMutable();
+                  stages_.add(m);
+                } else {
+                  stagesBuilder_.addMessage(m);
+                }
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.OperationProgress) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -3208,7 +3147,18 @@ public OperationProgress parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new OperationProgress(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/PrivateClusterConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/PrivateClusterConfig.java
index 02cb1ed1..cde3b36e 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/PrivateClusterConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/PrivateClusterConfig.java
@@ -55,101 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private PrivateClusterConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enablePrivateNodes_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              enablePrivateEndpoint_ = input.readBool();
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              masterIpv4CidrBlock_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              privateEndpoint_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              publicEndpoint_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              peeringName_ = s;
-              break;
-            }
-          case 66:
-            {
-              com.google.container.v1.PrivateClusterMasterGlobalAccessConfig.Builder subBuilder =
-                  null;
-              if (masterGlobalAccessConfig_ != null) {
-                subBuilder = masterGlobalAccessConfig_.toBuilder();
-              }
-              masterGlobalAccessConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.PrivateClusterMasterGlobalAccessConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(masterGlobalAccessConfig_);
-                masterGlobalAccessConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_PrivateClusterConfig_descriptor;
@@ -496,7 +401,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (masterGlobalAccessConfig_ != null) {
       output.writeMessage(8, getMasterGlobalAccessConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -528,7 +433,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               8, getMasterGlobalAccessConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -554,7 +459,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasMasterGlobalAccessConfig()) {
       if (!getMasterGlobalAccessConfig().equals(other.getMasterGlobalAccessConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -581,7 +486,7 @@ public int hashCode() {
       hash = (37 * hash) + MASTER_GLOBAL_ACCESS_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getMasterGlobalAccessConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -710,17 +615,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.PrivateClusterConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -856,7 +754,7 @@ public Builder mergeFrom(com.google.container.v1.PrivateClusterConfig other) {
       if (other.hasMasterGlobalAccessConfig()) {
         mergeMasterGlobalAccessConfig(other.getMasterGlobalAccessConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -871,17 +769,74 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.PrivateClusterConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enablePrivateNodes_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                enablePrivateEndpoint_ = input.readBool();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                masterIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                privateEndpoint_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                publicEndpoint_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 58:
+              {
+                peeringName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                input.readMessage(
+                    getMasterGlobalAccessConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 66
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.PrivateClusterConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1677,7 +1632,18 @@ public PrivateClusterConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new PrivateClusterConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/PrivateClusterMasterGlobalAccessConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/PrivateClusterMasterGlobalAccessConfig.java
index 9e67901f..484f60da 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/PrivateClusterMasterGlobalAccessConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/PrivateClusterMasterGlobalAccessConfig.java
@@ -52,50 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private PrivateClusterMasterGlobalAccessConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_PrivateClusterMasterGlobalAccessConfig_descriptor;
@@ -146,7 +102,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -158,7 +114,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -175,7 +131,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.PrivateClusterMasterGlobalAccessConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -188,7 +144,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -318,17 +274,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.PrivateClusterMasterGlobalAccessConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -419,7 +368,7 @@ public Builder mergeFrom(com.google.container.v1.PrivateClusterMasterGlobalAcces
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -434,19 +383,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.PrivateClusterMasterGlobalAccessConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.PrivateClusterMasterGlobalAccessConfig)
-                e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -536,7 +503,18 @@ public PrivateClusterMasterGlobalAccessConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new PrivateClusterMasterGlobalAccessConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RecurringTimeWindow.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RecurringTimeWindow.java
index 2be04425..ec0b2bbe 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RecurringTimeWindow.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RecurringTimeWindow.java
@@ -52,67 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private RecurringTimeWindow(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.TimeWindow.Builder subBuilder = null;
-              if (window_ != null) {
-                subBuilder = window_.toBuilder();
-              }
-              window_ =
-                  input.readMessage(com.google.container.v1.TimeWindow.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(window_);
-                window_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              recurrence_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_RecurringTimeWindow_descriptor;
@@ -293,7 +232,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(recurrence_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, recurrence_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -308,7 +247,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(recurrence_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, recurrence_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -329,7 +268,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getWindow().equals(other.getWindow())) return false;
     }
     if (!getRecurrence().equals(other.getRecurrence())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -346,7 +285,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + RECURRENCE_FIELD_NUMBER;
     hash = (53 * hash) + getRecurrence().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -475,17 +414,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.RecurringTimeWindow.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -588,7 +520,7 @@ public Builder mergeFrom(com.google.container.v1.RecurringTimeWindow other) {
         recurrence_ = other.recurrence_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -603,17 +535,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.RecurringTimeWindow parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getWindowFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 18:
+              {
+                recurrence_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.RecurringTimeWindow) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1061,7 +1019,18 @@ public RecurringTimeWindow parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new RecurringTimeWindow(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReleaseChannel.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReleaseChannel.java
index 7b622494..fbe78c7a 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReleaseChannel.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReleaseChannel.java
@@ -56,52 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ReleaseChannel(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              channel_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ReleaseChannel_descriptor;
@@ -363,7 +317,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (channel_ != com.google.container.v1.ReleaseChannel.Channel.UNSPECIFIED.getNumber()) {
       output.writeEnum(1, channel_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -375,7 +329,7 @@ public int getSerializedSize() {
     if (channel_ != com.google.container.v1.ReleaseChannel.Channel.UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, channel_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -391,7 +345,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.ReleaseChannel other = (com.google.container.v1.ReleaseChannel) obj;
 
     if (channel_ != other.channel_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -404,7 +358,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + CHANNEL_FIELD_NUMBER;
     hash = (53 * hash) + channel_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -537,17 +491,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ReleaseChannel.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -635,7 +582,7 @@ public Builder mergeFrom(com.google.container.v1.ReleaseChannel other) {
       if (other.channel_ != 0) {
         setChannelValue(other.getChannelValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -650,17 +597,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ReleaseChannel parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                channel_ = input.readEnum();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ReleaseChannel) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -787,7 +754,18 @@ public ReleaseChannel parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ReleaseChannel(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReservationAffinity.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReservationAffinity.java
index 3eb118b5..fff30f75 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReservationAffinity.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReservationAffinity.java
@@ -56,73 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ReservationAffinity(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              consumeReservationType_ = rawValue;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              key_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                values_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              values_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        values_ = values_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ReservationAffinity_descriptor;
@@ -362,8 +295,9 @@ public com.google.container.v1.ReservationAffinity.Type getConsumeReservationTyp
    *
    * 
    * Corresponds to the label key of a reservation resource. To target a
-   * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-   * the key and specify the name of your reservation as its value.
+   * SPECIFIC_RESERVATION by name, specify
+   * "compute.googleapis.com/reservation-name" as the key and specify the name
+   * of your reservation as its value.
    * 

    *
    * string key = 2;
@@ -387,8 +321,9 @@ public java.lang.String getKey() {
    *
    * 
    * Corresponds to the label key of a reservation resource. To target a
-   * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-   * the key and specify the name of your reservation as its value.
+   * SPECIFIC_RESERVATION by name, specify
+   * "compute.googleapis.com/reservation-name" as the key and specify the name
+   * of your reservation as its value.
    * 

    *
    * string key = 2;
@@ -493,7 +428,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < values_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, values_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -517,7 +452,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getValuesList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -536,7 +471,7 @@ public boolean equals(final java.lang.Object obj) {
     if (consumeReservationType_ != other.consumeReservationType_) return false;
     if (!getKey().equals(other.getKey())) return false;
     if (!getValuesList().equals(other.getValuesList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -555,7 +490,7 @@ public int hashCode() {
       hash = (37 * hash) + VALUES_FIELD_NUMBER;
       hash = (53 * hash) + getValuesList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -686,17 +621,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ReservationAffinity.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -809,7 +737,7 @@ public Builder mergeFrom(com.google.container.v1.ReservationAffinity other) {
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -824,17 +752,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ReservationAffinity parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                consumeReservationType_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                key_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureValuesIsMutable();
+                values_.add(s);
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ReservationAffinity) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -940,8 +901,9 @@ public Builder clearConsumeReservationType() {
      *
      * 
      * Corresponds to the label key of a reservation resource. To target a
-     * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-     * the key and specify the name of your reservation as its value.
+     * SPECIFIC_RESERVATION by name, specify
+     * "compute.googleapis.com/reservation-name" as the key and specify the name
+     * of your reservation as its value.
      * 

      *
      * string key = 2;
@@ -964,8 +926,9 @@ public java.lang.String getKey() {
      *
      * 
      * Corresponds to the label key of a reservation resource. To target a
-     * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-     * the key and specify the name of your reservation as its value.
+     * SPECIFIC_RESERVATION by name, specify
+     * "compute.googleapis.com/reservation-name" as the key and specify the name
+     * of your reservation as its value.
      * 

      *
      * string key = 2;
@@ -988,8 +951,9 @@ public com.google.protobuf.ByteString getKeyBytes() {
      *
      * 
      * Corresponds to the label key of a reservation resource. To target a
-     * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-     * the key and specify the name of your reservation as its value.
+     * SPECIFIC_RESERVATION by name, specify
+     * "compute.googleapis.com/reservation-name" as the key and specify the name
+     * of your reservation as its value.
      * 

      *
      * string key = 2;
@@ -1011,8 +975,9 @@ public Builder setKey(java.lang.String value) {
      *
      * 
      * Corresponds to the label key of a reservation resource. To target a
-     * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-     * the key and specify the name of your reservation as its value.
+     * SPECIFIC_RESERVATION by name, specify
+     * "compute.googleapis.com/reservation-name" as the key and specify the name
+     * of your reservation as its value.
      * 

      *
      * string key = 2;
@@ -1030,8 +995,9 @@ public Builder clearKey() {
      *
      * 
      * Corresponds to the label key of a reservation resource. To target a
-     * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-     * the key and specify the name of your reservation as its value.
+     * SPECIFIC_RESERVATION by name, specify
+     * "compute.googleapis.com/reservation-name" as the key and specify the name
+     * of your reservation as its value.
      * 

      *
      * string key = 2;
@@ -1250,7 +1216,18 @@ public ReservationAffinity parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ReservationAffinity(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReservationAffinityOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReservationAffinityOrBuilder.java
index 87fb27a1..de90b6ab 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReservationAffinityOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ReservationAffinityOrBuilder.java
@@ -53,8 +53,9 @@ public interface ReservationAffinityOrBuilder
    *
    * 
    * Corresponds to the label key of a reservation resource. To target a
-   * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-   * the key and specify the name of your reservation as its value.
+   * SPECIFIC_RESERVATION by name, specify
+   * "compute.googleapis.com/reservation-name" as the key and specify the name
+   * of your reservation as its value.
    * 

    *
    * string key = 2;
@@ -67,8 +68,9 @@ public interface ReservationAffinityOrBuilder
    *
    * 
    * Corresponds to the label key of a reservation resource. To target a
-   * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-   * the key and specify the name of your reservation as its value.
+   * SPECIFIC_RESERVATION by name, specify
+   * "compute.googleapis.com/reservation-name" as the key and specify the name
+   * of your reservation as its value.
    * 

    *
    * string key = 2;
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ResourceLimit.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ResourceLimit.java
index 2bb680f3..84a7c9b6 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ResourceLimit.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ResourceLimit.java
@@ -53,62 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ResourceLimit(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              resourceType_ = s;
-              break;
-            }
-          case 16:
-            {
-              minimum_ = input.readInt64();
-              break;
-            }
-          case 24:
-            {
-              maximum_ = input.readInt64();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ResourceLimit_descriptor;
@@ -232,7 +176,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (maximum_ != 0L) {
       output.writeInt64(3, maximum_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -250,7 +194,7 @@ public int getSerializedSize() {
     if (maximum_ != 0L) {
       size += com.google.protobuf.CodedOutputStream.computeInt64Size(3, maximum_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -268,7 +212,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getResourceType().equals(other.getResourceType())) return false;
     if (getMinimum() != other.getMinimum()) return false;
     if (getMaximum() != other.getMaximum()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -285,7 +229,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getMinimum());
     hash = (37 * hash) + MAXIMUM_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getMaximum());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -414,17 +358,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ResourceLimit.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -525,7 +462,7 @@ public Builder mergeFrom(com.google.container.v1.ResourceLimit other) {
       if (other.getMaximum() != 0L) {
         setMaximum(other.getMaximum());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -540,17 +477,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ResourceLimit parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                resourceType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                minimum_ = input.readInt64();
+
+                break;
+              } // case 16
+            case 24:
+              {
+                maximum_ = input.readInt64();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ResourceLimit) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -796,7 +765,18 @@ public ResourceLimit parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ResourceLimit(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ResourceUsageExportConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ResourceUsageExportConfig.java
index 1a57be5b..73e65f83 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ResourceUsageExportConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ResourceUsageExportConfig.java
@@ -50,88 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ResourceUsageExportConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1.ResourceUsageExportConfig.BigQueryDestination.Builder
-                  subBuilder = null;
-              if (bigqueryDestination_ != null) {
-                subBuilder = bigqueryDestination_.toBuilder();
-              }
-              bigqueryDestination_ =
-                  input.readMessage(
-                      com.google.container.v1.ResourceUsageExportConfig.BigQueryDestination
-                          .parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(bigqueryDestination_);
-                bigqueryDestination_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 16:
-            {
-              enableNetworkEgressMetering_ = input.readBool();
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1.ResourceUsageExportConfig.ConsumptionMeteringConfig.Builder
-                  subBuilder = null;
-              if (consumptionMeteringConfig_ != null) {
-                subBuilder = consumptionMeteringConfig_.toBuilder();
-              }
-              consumptionMeteringConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.ResourceUsageExportConfig.ConsumptionMeteringConfig
-                          .parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(consumptionMeteringConfig_);
-                consumptionMeteringConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ResourceUsageExportConfig_descriptor;
@@ -211,52 +129,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private BigQueryDestination(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                datasetId_ = s;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_ResourceUsageExportConfig_BigQueryDestination_descriptor;
@@ -338,7 +210,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(datasetId_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, datasetId_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -350,7 +222,7 @@ public int getSerializedSize() {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(datasetId_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, datasetId_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -367,7 +239,7 @@ public boolean equals(final java.lang.Object obj) {
           (com.google.container.v1.ResourceUsageExportConfig.BigQueryDestination) obj;
 
       if (!getDatasetId().equals(other.getDatasetId())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -380,7 +252,7 @@ public int hashCode() {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + DATASET_ID_FIELD_NUMBER;
       hash = (53 * hash) + getDatasetId().hashCode();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -515,17 +387,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
       // Construct using
       // com.google.container.v1.ResourceUsageExportConfig.BigQueryDestination.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -624,7 +489,7 @@ public Builder mergeFrom(
           datasetId_ = other.datasetId_;
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -639,19 +504,37 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.ResourceUsageExportConfig.BigQueryDestination parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  datasetId_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 10
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1.ResourceUsageExportConfig.BigQueryDestination)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -797,7 +680,19 @@ public BigQueryDestination parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new BigQueryDestination(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -869,50 +764,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private ConsumptionMeteringConfig(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                enabled_ = input.readBool();
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_ResourceUsageExportConfig_ConsumptionMeteringConfig_descriptor;
@@ -966,7 +817,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (enabled_ != false) {
         output.writeBool(1, enabled_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -978,7 +829,7 @@ public int getSerializedSize() {
       if (enabled_ != false) {
         size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -996,7 +847,7 @@ public boolean equals(final java.lang.Object obj) {
           (com.google.container.v1.ResourceUsageExportConfig.ConsumptionMeteringConfig) obj;
 
       if (getEnabled() != other.getEnabled()) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -1009,7 +860,7 @@ public int hashCode() {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + ENABLED_FIELD_NUMBER;
       hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -1149,17 +1000,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
       // Construct using
       // com.google.container.v1.ResourceUsageExportConfig.ConsumptionMeteringConfig.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -1259,7 +1103,7 @@ public Builder mergeFrom(
         if (other.getEnabled() != false) {
           setEnabled(other.getEnabled());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -1274,20 +1118,37 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.ResourceUsageExportConfig.ConsumptionMeteringConfig parsedMessage =
-            null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  enabled_ = input.readBool();
+
+                  break;
+                } // case 8
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1.ResourceUsageExportConfig.ConsumptionMeteringConfig)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1385,7 +1246,19 @@ public ConsumptionMeteringConfig parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new ConsumptionMeteringConfig(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1562,7 +1435,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (consumptionMeteringConfig_ != null) {
       output.writeMessage(3, getConsumptionMeteringConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1583,7 +1456,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               3, getConsumptionMeteringConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1609,7 +1482,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getConsumptionMeteringConfig().equals(other.getConsumptionMeteringConfig()))
         return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1630,7 +1503,7 @@ public int hashCode() {
       hash = (37 * hash) + CONSUMPTION_METERING_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getConsumptionMeteringConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1759,17 +1632,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ResourceUsageExportConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1886,7 +1752,7 @@ public Builder mergeFrom(com.google.container.v1.ResourceUsageExportConfig other
       if (other.hasConsumptionMeteringConfig()) {
         mergeConsumptionMeteringConfig(other.getConsumptionMeteringConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1901,18 +1767,51 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ResourceUsageExportConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getBigqueryDestinationFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 16:
+              {
+                enableNetworkEgressMetering_ = input.readBool();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                input.readMessage(
+                    getConsumptionMeteringConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.ResourceUsageExportConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2432,7 +2331,18 @@ public ResourceUsageExportConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ResourceUsageExportConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RollbackNodePoolUpgradeRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RollbackNodePoolUpgradeRequest.java
index fb1b0c09..5b31cabe 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RollbackNodePoolUpgradeRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RollbackNodePoolUpgradeRequest.java
@@ -59,85 +59,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private RollbackNodePoolUpgradeRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 56:
-            {
-              respectPdb_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_RollbackNodePoolUpgradeRequest_descriptor;
@@ -167,7 +88,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3217
+   *     google/container/v1/cluster_service.proto;l=3230
    * @return The projectId.
    */
   @java.lang.Override
@@ -195,7 +116,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3217
+   *     google/container/v1/cluster_service.proto;l=3230
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -227,7 +148,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3223
+   *     google/container/v1/cluster_service.proto;l=3236
    * @return The zone.
    */
   @java.lang.Override
@@ -256,7 +177,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3223
+   *     google/container/v1/cluster_service.proto;l=3236
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -286,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3227
+   *     google/container/v1/cluster_service.proto;l=3240
    * @return The clusterId.
    */
   @java.lang.Override
@@ -313,7 +234,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3227
+   *     google/container/v1/cluster_service.proto;l=3240
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -343,7 +264,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3231
+   *     google/container/v1/cluster_service.proto;l=3244
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -370,7 +291,7 @@ public java.lang.String getNodePoolId() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3231
+   *     google/container/v1/cluster_service.proto;l=3244
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -491,7 +412,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (respectPdb_ != false) {
       output.writeBool(7, respectPdb_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -518,7 +439,7 @@ public int getSerializedSize() {
     if (respectPdb_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(7, respectPdb_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -540,7 +461,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getNodePoolId().equals(other.getNodePoolId())) return false;
     if (!getName().equals(other.getName())) return false;
     if (getRespectPdb() != other.getRespectPdb()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -563,7 +484,7 @@ public int hashCode() {
     hash = (53 * hash) + getName().hashCode();
     hash = (37 * hash) + RESPECT_PDB_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getRespectPdb());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -695,17 +616,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.RollbackNodePoolUpgradeRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -829,7 +743,7 @@ public Builder mergeFrom(com.google.container.v1.RollbackNodePoolUpgradeRequest
       if (other.getRespectPdb() != false) {
         setRespectPdb(other.getRespectPdb());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -844,18 +758,67 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.RollbackNodePoolUpgradeRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 56:
+              {
+                respectPdb_ = input.readBool();
+
+                break;
+              } // case 56
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.RollbackNodePoolUpgradeRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -872,7 +835,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3217
+     *     google/container/v1/cluster_service.proto;l=3230
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -899,7 +862,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3217
+     *     google/container/v1/cluster_service.proto;l=3230
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -926,7 +889,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3217
+     *     google/container/v1/cluster_service.proto;l=3230
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -952,7 +915,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3217
+     *     google/container/v1/cluster_service.proto;l=3230
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -974,7 +937,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3217
+     *     google/container/v1/cluster_service.proto;l=3230
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1004,7 +967,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3223
+     *     google/container/v1/cluster_service.proto;l=3236
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1032,7 +995,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3223
+     *     google/container/v1/cluster_service.proto;l=3236
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1060,7 +1023,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3223
+     *     google/container/v1/cluster_service.proto;l=3236
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1087,7 +1050,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3223
+     *     google/container/v1/cluster_service.proto;l=3236
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1110,7 +1073,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3223
+     *     google/container/v1/cluster_service.proto;l=3236
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1138,7 +1101,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3227
+     *     google/container/v1/cluster_service.proto;l=3240
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1164,7 +1127,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3227
+     *     google/container/v1/cluster_service.proto;l=3240
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1190,7 +1153,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3227
+     *     google/container/v1/cluster_service.proto;l=3240
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1215,7 +1178,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3227
+     *     google/container/v1/cluster_service.proto;l=3240
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1236,7 +1199,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3227
+     *     google/container/v1/cluster_service.proto;l=3240
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1264,7 +1227,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated.
-     *     See google/container/v1/cluster_service.proto;l=3231
+     *     See google/container/v1/cluster_service.proto;l=3244
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1290,7 +1253,7 @@ public java.lang.String getNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated.
-     *     See google/container/v1/cluster_service.proto;l=3231
+     *     See google/container/v1/cluster_service.proto;l=3244
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1316,7 +1279,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated.
-     *     See google/container/v1/cluster_service.proto;l=3231
+     *     See google/container/v1/cluster_service.proto;l=3244
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1341,7 +1304,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated.
-     *     See google/container/v1/cluster_service.proto;l=3231
+     *     See google/container/v1/cluster_service.proto;l=3244
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1362,7 +1325,7 @@ public Builder clearNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated.
-     *     See google/container/v1/cluster_service.proto;l=3231
+     *     See google/container/v1/cluster_service.proto;l=3244
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1581,7 +1544,18 @@ public RollbackNodePoolUpgradeRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new RollbackNodePoolUpgradeRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RollbackNodePoolUpgradeRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RollbackNodePoolUpgradeRequestOrBuilder.java
index 32ddd4be..9ebc868f 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RollbackNodePoolUpgradeRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/RollbackNodePoolUpgradeRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3217
+   *     google/container/v1/cluster_service.proto;l=3230
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3217
+   *     google/container/v1/cluster_service.proto;l=3230
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3223
+   *     google/container/v1/cluster_service.proto;l=3236
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3223
+   *     google/container/v1/cluster_service.proto;l=3236
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3227
+   *     google/container/v1/cluster_service.proto;l=3240
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3227
+   *     google/container/v1/cluster_service.proto;l=3240
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -139,7 +139,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3231
+   *     google/container/v1/cluster_service.proto;l=3244
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -155,7 +155,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3231
+   *     google/container/v1/cluster_service.proto;l=3244
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SandboxConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SandboxConfig.java
index 76c75706..e0701242 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SandboxConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SandboxConfig.java
@@ -52,52 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SandboxConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              type_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SandboxConfig_descriptor;
@@ -301,7 +255,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (type_ != com.google.container.v1.SandboxConfig.Type.UNSPECIFIED.getNumber()) {
       output.writeEnum(2, type_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -313,7 +267,7 @@ public int getSerializedSize() {
     if (type_ != com.google.container.v1.SandboxConfig.Type.UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, type_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -329,7 +283,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.SandboxConfig other = (com.google.container.v1.SandboxConfig) obj;
 
     if (type_ != other.type_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -342,7 +296,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + TYPE_FIELD_NUMBER;
     hash = (53 * hash) + type_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -470,17 +424,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SandboxConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -568,7 +515,7 @@ public Builder mergeFrom(com.google.container.v1.SandboxConfig other) {
       if (other.type_ != 0) {
         setTypeValue(other.getTypeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -583,17 +530,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SandboxConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 16:
+              {
+                type_ = input.readEnum();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.SandboxConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -720,7 +687,18 @@ public SandboxConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SandboxConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SecurityBulletinEvent.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SecurityBulletinEvent.java
index eb94f6de..78488da9 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SecurityBulletinEvent.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SecurityBulletinEvent.java
@@ -61,132 +61,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SecurityBulletinEvent(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              resourceTypeAffected_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              bulletinId_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                cveIds_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              cveIds_.add(s);
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              severity_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              bulletinUri_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              briefDescription_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                affectedSupportedMinors_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              affectedSupportedMinors_.add(s);
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                patchedVersions_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000004;
-              }
-              patchedVersions_.add(s);
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              suggestedUpgradeTarget_ = s;
-              break;
-            }
-          case 80:
-            {
-              manualStepsRequired_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        cveIds_ = cveIds_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        affectedSupportedMinors_ = affectedSupportedMinors_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000004) != 0)) {
-        patchedVersions_ = patchedVersions_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SecurityBulletinEvent_descriptor;
@@ -757,7 +631,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (manualStepsRequired_ != false) {
       output.writeBool(10, manualStepsRequired_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -811,7 +685,7 @@ public int getSerializedSize() {
     if (manualStepsRequired_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(10, manualStepsRequired_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -838,7 +712,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getPatchedVersionsList().equals(other.getPatchedVersionsList())) return false;
     if (!getSuggestedUpgradeTarget().equals(other.getSuggestedUpgradeTarget())) return false;
     if (getManualStepsRequired() != other.getManualStepsRequired()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -875,7 +749,7 @@ public int hashCode() {
     hash = (53 * hash) + getSuggestedUpgradeTarget().hashCode();
     hash = (37 * hash) + MANUAL_STEPS_REQUIRED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getManualStepsRequired());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1005,17 +879,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SecurityBulletinEvent.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1197,7 +1064,7 @@ public Builder mergeFrom(com.google.container.v1.SecurityBulletinEvent other) {
       if (other.getManualStepsRequired() != false) {
         setManualStepsRequired(other.getManualStepsRequired());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1212,17 +1079,94 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SecurityBulletinEvent parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                resourceTypeAffected_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                bulletinId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureCveIdsIsMutable();
+                cveIds_.add(s);
+                break;
+              } // case 26
+            case 34:
+              {
+                severity_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                bulletinUri_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                briefDescription_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 58:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureAffectedSupportedMinorsIsMutable();
+                affectedSupportedMinors_.add(s);
+                break;
+              } // case 58
+            case 66:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensurePatchedVersionsIsMutable();
+                patchedVersions_.add(s);
+                break;
+              } // case 66
+            case 74:
+              {
+                suggestedUpgradeTarget_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 80:
+              {
+                manualStepsRequired_ = input.readBool();
+
+                break;
+              } // case 80
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.SecurityBulletinEvent) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2491,7 +2435,18 @@ public SecurityBulletinEvent parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SecurityBulletinEvent(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ServerConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ServerConfig.java
index 9ea832b7..b2e2ad4e 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ServerConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ServerConfig.java
@@ -57,116 +57,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ServerConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              defaultClusterVersion_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                validNodeVersions_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              validNodeVersions_.add(s);
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              defaultImageType_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                validImageTypes_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              validImageTypes_.add(s);
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                validMasterVersions_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000004;
-              }
-              validMasterVersions_.add(s);
-              break;
-            }
-          case 74:
-            {
-              if (!((mutable_bitField0_ & 0x00000008) != 0)) {
-                channels_ =
-                    new java.util.ArrayList<
-                        com.google.container.v1.ServerConfig.ReleaseChannelConfig>();
-                mutable_bitField0_ |= 0x00000008;
-              }
-              channels_.add(
-                  input.readMessage(
-                      com.google.container.v1.ServerConfig.ReleaseChannelConfig.parser(),
-                      extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        validNodeVersions_ = validNodeVersions_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        validImageTypes_ = validImageTypes_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000004) != 0)) {
-        validMasterVersions_ = validMasterVersions_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000008) != 0)) {
-        channels_ = java.util.Collections.unmodifiableList(channels_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ServerConfig_descriptor;
@@ -324,73 +214,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private ReleaseChannelConfig(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                int rawValue = input.readEnum();
-
-                channel_ = rawValue;
-                break;
-              }
-            case 18:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                defaultVersion_ = s;
-                break;
-              }
-            case 34:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                  validVersions_ = new com.google.protobuf.LazyStringArrayList();
-                  mutable_bitField0_ |= 0x00000001;
-                }
-                validVersions_.add(s);
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        if (((mutable_bitField0_ & 0x00000001) != 0)) {
-          validVersions_ = validVersions_.getUnmodifiableView();
-        }
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1.ClusterServiceProto
           .internal_static_google_container_v1_ServerConfig_ReleaseChannelConfig_descriptor;
@@ -575,7 +398,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       for (int i = 0; i < validVersions_.size(); i++) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 4, validVersions_.getRaw(i));
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -598,7 +421,7 @@ public int getSerializedSize() {
         size += dataSize;
         size += 1 * getValidVersionsList().size();
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -617,7 +440,7 @@ public boolean equals(final java.lang.Object obj) {
       if (channel_ != other.channel_) return false;
       if (!getDefaultVersion().equals(other.getDefaultVersion())) return false;
       if (!getValidVersionsList().equals(other.getValidVersionsList())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -636,7 +459,7 @@ public int hashCode() {
         hash = (37 * hash) + VALID_VERSIONS_FIELD_NUMBER;
         hash = (53 * hash) + getValidVersionsList().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -768,17 +591,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1.ServerConfig.ReleaseChannelConfig.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -894,7 +710,7 @@ public Builder mergeFrom(com.google.container.v1.ServerConfig.ReleaseChannelConf
           }
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -909,18 +725,50 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1.ServerConfig.ReleaseChannelConfig parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  channel_ = input.readEnum();
+
+                  break;
+                } // case 8
+              case 18:
+                {
+                  defaultVersion_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 18
+              case 34:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+                  ensureValidVersionsIsMutable();
+                  validVersions_.add(s);
+                  break;
+                } // case 34
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1.ServerConfig.ReleaseChannelConfig) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1326,7 +1174,19 @@ public ReleaseChannelConfig parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new ReleaseChannelConfig(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1730,7 +1590,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < channels_.size(); i++) {
       output.writeMessage(9, channels_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1772,7 +1632,7 @@ public int getSerializedSize() {
     for (int i = 0; i < channels_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(9, channels_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1793,7 +1653,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getValidImageTypesList().equals(other.getValidImageTypesList())) return false;
     if (!getValidMasterVersionsList().equals(other.getValidMasterVersionsList())) return false;
     if (!getChannelsList().equals(other.getChannelsList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1824,7 +1684,7 @@ public int hashCode() {
       hash = (37 * hash) + CHANNELS_FIELD_NUMBER;
       hash = (53 * hash) + getChannelsList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1952,19 +1812,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ServerConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getChannelsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -1982,10 +1833,11 @@ public Builder clear() {
       bitField0_ = (bitField0_ & ~0x00000004);
       if (channelsBuilder_ == null) {
         channels_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000008);
       } else {
+        channels_ = null;
         channelsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000008);
       return this;
     }
 
@@ -2153,7 +2005,7 @@ public Builder mergeFrom(com.google.container.v1.ServerConfig other) {
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -2168,17 +2020,78 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ServerConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                defaultClusterVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureValidNodeVersionsIsMutable();
+                validNodeVersions_.add(s);
+                break;
+              } // case 26
+            case 34:
+              {
+                defaultImageType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureValidImageTypesIsMutable();
+                validImageTypes_.add(s);
+                break;
+              } // case 42
+            case 50:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureValidMasterVersionsIsMutable();
+                validMasterVersions_.add(s);
+                break;
+              } // case 50
+            case 74:
+              {
+                com.google.container.v1.ServerConfig.ReleaseChannelConfig m =
+                    input.readMessage(
+                        com.google.container.v1.ServerConfig.ReleaseChannelConfig.parser(),
+                        extensionRegistry);
+                if (channelsBuilder_ == null) {
+                  ensureChannelsIsMutable();
+                  channels_.add(m);
+                } else {
+                  channelsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 74
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ServerConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -3297,7 +3210,18 @@ public ServerConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ServerConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ServiceExternalIPsConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ServiceExternalIPsConfig.java
index 3791eb6b..3c07c337 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ServiceExternalIPsConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ServiceExternalIPsConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ServiceExternalIPsConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ServiceExternalIPsConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.ServiceExternalIPsConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ServiceExternalIPsConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -414,7 +363,7 @@ public Builder mergeFrom(com.google.container.v1.ServiceExternalIPsConfig other)
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -429,17 +378,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ServiceExternalIPsConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ServiceExternalIPsConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -527,7 +496,18 @@ public ServiceExternalIPsConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ServiceExternalIPsConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetAddonsConfigRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetAddonsConfigRequest.java
index 416f1c9c..58bd5e00 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetAddonsConfigRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetAddonsConfigRequest.java
@@ -55,89 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetAddonsConfigRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1.AddonsConfig.Builder subBuilder = null;
-              if (addonsConfig_ != null) {
-                subBuilder = addonsConfig_.toBuilder();
-              }
-              addonsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.AddonsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(addonsConfig_);
-                addonsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetAddonsConfigRequest_descriptor;
@@ -167,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2314
+   *     google/container/v1/cluster_service.proto;l=2327
    * @return The projectId.
    */
   @java.lang.Override
@@ -195,7 +112,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2314
+   *     google/container/v1/cluster_service.proto;l=2327
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -227,7 +144,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2320
+   *     google/container/v1/cluster_service.proto;l=2333
    * @return The zone.
    */
   @java.lang.Override
@@ -256,7 +173,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2320
+   *     google/container/v1/cluster_service.proto;l=2333
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -286,7 +203,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2324
+   *     google/container/v1/cluster_service.proto;l=2337
    * @return The clusterId.
    */
   @java.lang.Override
@@ -313,7 +230,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2324
+   *     google/container/v1/cluster_service.proto;l=2337
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -467,7 +384,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -491,7 +408,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -515,7 +432,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getAddonsConfig().equals(other.getAddonsConfig())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -538,7 +455,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -667,17 +584,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetAddonsConfigRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -801,7 +711,7 @@ public Builder mergeFrom(com.google.container.v1.SetAddonsConfigRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -816,17 +726,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetAddonsConfigRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getAddonsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.SetAddonsConfigRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -843,7 +797,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2314
+     *     google/container/v1/cluster_service.proto;l=2327
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -870,7 +824,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2314
+     *     google/container/v1/cluster_service.proto;l=2327
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -897,7 +851,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2314
+     *     google/container/v1/cluster_service.proto;l=2327
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -923,7 +877,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2314
+     *     google/container/v1/cluster_service.proto;l=2327
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -945,7 +899,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2314
+     *     google/container/v1/cluster_service.proto;l=2327
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -975,7 +929,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2320
+     *     google/container/v1/cluster_service.proto;l=2333
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1003,7 +957,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2320
+     *     google/container/v1/cluster_service.proto;l=2333
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1031,7 +985,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2320
+     *     google/container/v1/cluster_service.proto;l=2333
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1058,7 +1012,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2320
+     *     google/container/v1/cluster_service.proto;l=2333
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1081,7 +1035,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2320
+     *     google/container/v1/cluster_service.proto;l=2333
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1109,7 +1063,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2324
+     *     google/container/v1/cluster_service.proto;l=2337
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1135,7 +1089,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2324
+     *     google/container/v1/cluster_service.proto;l=2337
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1161,7 +1115,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2324
+     *     google/container/v1/cluster_service.proto;l=2337
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1186,7 +1140,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2324
+     *     google/container/v1/cluster_service.proto;l=2337
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1207,7 +1161,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetAddonsConfigRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2324
+     *     google/container/v1/cluster_service.proto;l=2337
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1578,7 +1532,18 @@ public SetAddonsConfigRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetAddonsConfigRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetAddonsConfigRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetAddonsConfigRequestOrBuilder.java
index 513fb24b..c90b7165 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetAddonsConfigRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetAddonsConfigRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2314
+   *     google/container/v1/cluster_service.proto;l=2327
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2314
+   *     google/container/v1/cluster_service.proto;l=2327
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2320
+   *     google/container/v1/cluster_service.proto;l=2333
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2320
+   *     google/container/v1/cluster_service.proto;l=2333
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2324
+   *     google/container/v1/cluster_service.proto;l=2337
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetAddonsConfigRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2324
+   *     google/container/v1/cluster_service.proto;l=2337
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLabelsRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLabelsRequest.java
index af44a9a7..3121d112 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLabelsRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLabelsRequest.java
@@ -58,98 +58,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetLabelsRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                resourceLabels_ =
-                    com.google.protobuf.MapField.newMapField(
-                        ResourceLabelsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000001;
-              }
-              com.google.protobuf.MapEntry resourceLabels__ =
-                  input.readMessage(
-                      ResourceLabelsDefaultEntryHolder.defaultEntry.getParserForType(),
-                      extensionRegistry);
-              resourceLabels_
-                  .getMutableMap()
-                  .put(resourceLabels__.getKey(), resourceLabels__.getValue());
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              labelFingerprint_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetLabelsRequest_descriptor;
@@ -190,7 +98,7 @@ protected com.google.protobuf.MapField internalGetMapField(int number) {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3409
+   *     google/container/v1/cluster_service.proto;l=3422
    * @return The projectId.
    */
   @java.lang.Override
@@ -218,7 +126,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3409
+   *     google/container/v1/cluster_service.proto;l=3422
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -250,7 +158,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3415
+   *     google/container/v1/cluster_service.proto;l=3428
    * @return The zone.
    */
   @java.lang.Override
@@ -279,7 +187,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3415
+   *     google/container/v1/cluster_service.proto;l=3428
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -309,7 +217,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3419
+   *     google/container/v1/cluster_service.proto;l=3432
    * @return The clusterId.
    */
   @java.lang.Override
@@ -336,7 +244,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3419
+   *     google/container/v1/cluster_service.proto;l=3432
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -599,7 +507,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -633,7 +541,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -654,7 +562,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!internalGetResourceLabels().equals(other.internalGetResourceLabels())) return false;
     if (!getLabelFingerprint().equals(other.getLabelFingerprint())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -679,7 +587,7 @@ public int hashCode() {
     hash = (53 * hash) + getLabelFingerprint().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -830,17 +738,10 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1.SetLabelsRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -962,7 +863,7 @@ public Builder mergeFrom(com.google.container.v1.SetLabelsRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -977,17 +878,72 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetLabelsRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                com.google.protobuf.MapEntry resourceLabels__ =
+                    input.readMessage(
+                        ResourceLabelsDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableResourceLabels()
+                    .getMutableMap()
+                    .put(resourceLabels__.getKey(), resourceLabels__.getValue());
+                break;
+              } // case 34
+            case 42:
+              {
+                labelFingerprint_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.SetLabelsRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1006,7 +962,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3409
+     *     google/container/v1/cluster_service.proto;l=3422
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -1033,7 +989,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3409
+     *     google/container/v1/cluster_service.proto;l=3422
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -1060,7 +1016,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3409
+     *     google/container/v1/cluster_service.proto;l=3422
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -1086,7 +1042,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3409
+     *     google/container/v1/cluster_service.proto;l=3422
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1108,7 +1064,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3409
+     *     google/container/v1/cluster_service.proto;l=3422
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1138,7 +1094,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3415
+     *     google/container/v1/cluster_service.proto;l=3428
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1166,7 +1122,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3415
+     *     google/container/v1/cluster_service.proto;l=3428
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1194,7 +1150,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3415
+     *     google/container/v1/cluster_service.proto;l=3428
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1221,7 +1177,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3415
+     *     google/container/v1/cluster_service.proto;l=3428
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1244,7 +1200,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3415
+     *     google/container/v1/cluster_service.proto;l=3428
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1272,7 +1228,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3419
+     *     google/container/v1/cluster_service.proto;l=3432
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1298,7 +1254,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3419
+     *     google/container/v1/cluster_service.proto;l=3432
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1324,7 +1280,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3419
+     *     google/container/v1/cluster_service.proto;l=3432
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1349,7 +1305,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3419
+     *     google/container/v1/cluster_service.proto;l=3432
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1370,7 +1326,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLabelsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3419
+     *     google/container/v1/cluster_service.proto;l=3432
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1835,7 +1791,18 @@ public SetLabelsRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetLabelsRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLabelsRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLabelsRequestOrBuilder.java
index 20f2129d..7ec8ac3e 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLabelsRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLabelsRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetLabelsRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3409
+   *     google/container/v1/cluster_service.proto;l=3422
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetLabelsRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3409
+   *     google/container/v1/cluster_service.proto;l=3422
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetLabelsRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3415
+   *     google/container/v1/cluster_service.proto;l=3428
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetLabelsRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3415
+   *     google/container/v1/cluster_service.proto;l=3428
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetLabelsRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3419
+   *     google/container/v1/cluster_service.proto;l=3432
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetLabelsRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLabelsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3419
+   *     google/container/v1/cluster_service.proto;l=3432
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLegacyAbacRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLegacyAbacRequest.java
index 39027891..21ce7cde 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLegacyAbacRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLegacyAbacRequest.java
@@ -56,78 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetLegacyAbacRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 32:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetLegacyAbacRequest_descriptor;
@@ -157,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3443
+   *     google/container/v1/cluster_service.proto;l=3456
    * @return The projectId.
    */
   @java.lang.Override
@@ -185,7 +113,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3443
+   *     google/container/v1/cluster_service.proto;l=3456
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -217,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3449
+   *     google/container/v1/cluster_service.proto;l=3462
    * @return The zone.
    */
   @java.lang.Override
@@ -246,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3449
+   *     google/container/v1/cluster_service.proto;l=3462
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -276,7 +204,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3453
+   *     google/container/v1/cluster_service.proto;l=3466
    * @return The clusterId.
    */
   @java.lang.Override
@@ -303,7 +231,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3453
+   *     google/container/v1/cluster_service.proto;l=3466
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -418,7 +346,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -442,7 +370,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -463,7 +391,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (getEnabled() != other.getEnabled()) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -484,7 +412,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -614,17 +542,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetLegacyAbacRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -740,7 +661,7 @@ public Builder mergeFrom(com.google.container.v1.SetLegacyAbacRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -755,17 +676,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetLegacyAbacRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 32:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 32
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.SetLegacyAbacRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -782,7 +747,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3443
+     *     google/container/v1/cluster_service.proto;l=3456
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -809,7 +774,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3443
+     *     google/container/v1/cluster_service.proto;l=3456
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -836,7 +801,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3443
+     *     google/container/v1/cluster_service.proto;l=3456
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -862,7 +827,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3443
+     *     google/container/v1/cluster_service.proto;l=3456
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -884,7 +849,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3443
+     *     google/container/v1/cluster_service.proto;l=3456
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -914,7 +879,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3449
+     *     google/container/v1/cluster_service.proto;l=3462
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -942,7 +907,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3449
+     *     google/container/v1/cluster_service.proto;l=3462
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -970,7 +935,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3449
+     *     google/container/v1/cluster_service.proto;l=3462
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -997,7 +962,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3449
+     *     google/container/v1/cluster_service.proto;l=3462
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1020,7 +985,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3449
+     *     google/container/v1/cluster_service.proto;l=3462
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1048,7 +1013,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3453
+     *     google/container/v1/cluster_service.proto;l=3466
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1074,7 +1039,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3453
+     *     google/container/v1/cluster_service.proto;l=3466
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1100,7 +1065,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3453
+     *     google/container/v1/cluster_service.proto;l=3466
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1125,7 +1090,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3453
+     *     google/container/v1/cluster_service.proto;l=3466
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1146,7 +1111,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLegacyAbacRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3453
+     *     google/container/v1/cluster_service.proto;l=3466
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1357,7 +1322,18 @@ public SetLegacyAbacRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetLegacyAbacRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLegacyAbacRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLegacyAbacRequestOrBuilder.java
index b6cefd4d..b35ed639 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLegacyAbacRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLegacyAbacRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3443
+   *     google/container/v1/cluster_service.proto;l=3456
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3443
+   *     google/container/v1/cluster_service.proto;l=3456
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3449
+   *     google/container/v1/cluster_service.proto;l=3462
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3449
+   *     google/container/v1/cluster_service.proto;l=3462
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3453
+   *     google/container/v1/cluster_service.proto;l=3466
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLegacyAbacRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3453
+   *     google/container/v1/cluster_service.proto;l=3466
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLocationsRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLocationsRequest.java
index 47eb911a..217c0df9 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLocationsRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLocationsRequest.java
@@ -56,87 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetLocationsRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                locations_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              locations_.add(s);
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        locations_ = locations_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetLocationsRequest_descriptor;
@@ -166,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2340
+   *     google/container/v1/cluster_service.proto;l=2353
    * @return The projectId.
    */
   @java.lang.Override
@@ -194,7 +113,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2340
+   *     google/container/v1/cluster_service.proto;l=2353
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -226,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2346
+   *     google/container/v1/cluster_service.proto;l=2359
    * @return The zone.
    */
   @java.lang.Override
@@ -255,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2346
+   *     google/container/v1/cluster_service.proto;l=2359
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -285,7 +204,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2350
+   *     google/container/v1/cluster_service.proto;l=2363
    * @return The clusterId.
    */
   @java.lang.Override
@@ -312,7 +231,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2350
+   *     google/container/v1/cluster_service.proto;l=2363
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -490,7 +409,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -519,7 +438,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -540,7 +459,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getLocationsList().equals(other.getLocationsList())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -563,7 +482,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -692,17 +611,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetLocationsRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -830,7 +742,7 @@ public Builder mergeFrom(com.google.container.v1.SetLocationsRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -845,17 +757,62 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetLocationsRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureLocationsIsMutable();
+                locations_.add(s);
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.SetLocationsRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -874,7 +831,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2340
+     *     google/container/v1/cluster_service.proto;l=2353
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -901,7 +858,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2340
+     *     google/container/v1/cluster_service.proto;l=2353
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -928,7 +885,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2340
+     *     google/container/v1/cluster_service.proto;l=2353
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -954,7 +911,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2340
+     *     google/container/v1/cluster_service.proto;l=2353
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -976,7 +933,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2340
+     *     google/container/v1/cluster_service.proto;l=2353
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1006,7 +963,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2346
+     *     google/container/v1/cluster_service.proto;l=2359
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1034,7 +991,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2346
+     *     google/container/v1/cluster_service.proto;l=2359
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1062,7 +1019,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2346
+     *     google/container/v1/cluster_service.proto;l=2359
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1089,7 +1046,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2346
+     *     google/container/v1/cluster_service.proto;l=2359
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1112,7 +1069,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2346
+     *     google/container/v1/cluster_service.proto;l=2359
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1140,7 +1097,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2350
+     *     google/container/v1/cluster_service.proto;l=2363
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1166,7 +1123,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2350
+     *     google/container/v1/cluster_service.proto;l=2363
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1192,7 +1149,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2350
+     *     google/container/v1/cluster_service.proto;l=2363
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1217,7 +1174,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2350
+     *     google/container/v1/cluster_service.proto;l=2363
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1238,7 +1195,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLocationsRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2350
+     *     google/container/v1/cluster_service.proto;l=2363
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1610,7 +1567,18 @@ public SetLocationsRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetLocationsRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLocationsRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLocationsRequestOrBuilder.java
index b962e50d..d150149b 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLocationsRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLocationsRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetLocationsRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2340
+   *     google/container/v1/cluster_service.proto;l=2353
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetLocationsRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2340
+   *     google/container/v1/cluster_service.proto;l=2353
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetLocationsRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2346
+   *     google/container/v1/cluster_service.proto;l=2359
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetLocationsRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2346
+   *     google/container/v1/cluster_service.proto;l=2359
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetLocationsRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2350
+   *     google/container/v1/cluster_service.proto;l=2363
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetLocationsRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLocationsRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2350
+   *     google/container/v1/cluster_service.proto;l=2363
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLoggingServiceRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLoggingServiceRequest.java
index 54f92f2a..79f46597 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLoggingServiceRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLoggingServiceRequest.java
@@ -56,80 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetLoggingServiceRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              loggingService_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetLoggingServiceRequest_descriptor;
@@ -159,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2244
+   *     google/container/v1/cluster_service.proto;l=2257
    * @return The projectId.
    */
   @java.lang.Override
@@ -187,7 +113,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2244
+   *     google/container/v1/cluster_service.proto;l=2257
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -219,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2250
+   *     google/container/v1/cluster_service.proto;l=2263
    * @return The zone.
    */
   @java.lang.Override
@@ -248,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2250
+   *     google/container/v1/cluster_service.proto;l=2263
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -278,7 +204,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2254
+   *     google/container/v1/cluster_service.proto;l=2267
    * @return The clusterId.
    */
   @java.lang.Override
@@ -305,7 +231,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2254
+   *     google/container/v1/cluster_service.proto;l=2267
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -467,7 +393,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -491,7 +417,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -512,7 +438,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getLoggingService().equals(other.getLoggingService())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -533,7 +459,7 @@ public int hashCode() {
     hash = (53 * hash) + getLoggingService().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -662,17 +588,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetLoggingServiceRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -790,7 +709,7 @@ public Builder mergeFrom(com.google.container.v1.SetLoggingServiceRequest other)
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -805,17 +724,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetLoggingServiceRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                loggingService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.SetLoggingServiceRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -832,7 +795,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2244
+     *     google/container/v1/cluster_service.proto;l=2257
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -859,7 +822,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2244
+     *     google/container/v1/cluster_service.proto;l=2257
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -886,7 +849,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2244
+     *     google/container/v1/cluster_service.proto;l=2257
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -912,7 +875,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2244
+     *     google/container/v1/cluster_service.proto;l=2257
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -934,7 +897,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2244
+     *     google/container/v1/cluster_service.proto;l=2257
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -964,7 +927,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2250
+     *     google/container/v1/cluster_service.proto;l=2263
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -992,7 +955,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2250
+     *     google/container/v1/cluster_service.proto;l=2263
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1020,7 +983,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2250
+     *     google/container/v1/cluster_service.proto;l=2263
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1047,7 +1010,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2250
+     *     google/container/v1/cluster_service.proto;l=2263
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1070,7 +1033,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2250
+     *     google/container/v1/cluster_service.proto;l=2263
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1098,7 +1061,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2254
+     *     google/container/v1/cluster_service.proto;l=2267
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1124,7 +1087,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2254
+     *     google/container/v1/cluster_service.proto;l=2267
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1150,7 +1113,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2254
+     *     google/container/v1/cluster_service.proto;l=2267
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1175,7 +1138,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2254
+     *     google/container/v1/cluster_service.proto;l=2267
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1196,7 +1159,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetLoggingServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2254
+     *     google/container/v1/cluster_service.proto;l=2267
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1501,7 +1464,18 @@ public SetLoggingServiceRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetLoggingServiceRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLoggingServiceRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLoggingServiceRequestOrBuilder.java
index 6a88f908..1b809599 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLoggingServiceRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetLoggingServiceRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2244
+   *     google/container/v1/cluster_service.proto;l=2257
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2244
+   *     google/container/v1/cluster_service.proto;l=2257
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2250
+   *     google/container/v1/cluster_service.proto;l=2263
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2250
+   *     google/container/v1/cluster_service.proto;l=2263
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2254
+   *     google/container/v1/cluster_service.proto;l=2267
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetLoggingServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2254
+   *     google/container/v1/cluster_service.proto;l=2267
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMaintenancePolicyRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMaintenancePolicyRequest.java
index ac3aa5b5..ca30b375 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMaintenancePolicyRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMaintenancePolicyRequest.java
@@ -55,89 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetMaintenancePolicyRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1.MaintenancePolicy.Builder subBuilder = null;
-              if (maintenancePolicy_ != null) {
-                subBuilder = maintenancePolicy_.toBuilder();
-              }
-              maintenancePolicy_ =
-                  input.readMessage(
-                      com.google.container.v1.MaintenancePolicy.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(maintenancePolicy_);
-                maintenancePolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetMaintenancePolicyRequest_descriptor;
@@ -445,7 +362,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -469,7 +386,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -493,7 +410,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getMaintenancePolicy().equals(other.getMaintenancePolicy())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -516,7 +433,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -645,17 +562,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetMaintenancePolicyRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -780,7 +690,7 @@ public Builder mergeFrom(com.google.container.v1.SetMaintenancePolicyRequest oth
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -795,18 +705,62 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetMaintenancePolicyRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(
+                    getMaintenancePolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.SetMaintenancePolicyRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1504,7 +1458,18 @@ public SetMaintenancePolicyRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetMaintenancePolicyRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMasterAuthRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMasterAuthRequest.java
index f48ca334..75156209 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMasterAuthRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMasterAuthRequest.java
@@ -56,95 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetMasterAuthRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 32:
-            {
-              int rawValue = input.readEnum();
-
-              action_ = rawValue;
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1.MasterAuth.Builder subBuilder = null;
-              if (update_ != null) {
-                subBuilder = update_.toBuilder();
-              }
-              update_ =
-                  input.readMessage(com.google.container.v1.MasterAuth.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(update_);
-                update_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetMasterAuthRequest_descriptor;
@@ -359,7 +270,7 @@ private Action(int value) {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2423
+   *     google/container/v1/cluster_service.proto;l=2436
    * @return The projectId.
    */
   @java.lang.Override
@@ -387,7 +298,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2423
+   *     google/container/v1/cluster_service.proto;l=2436
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -419,7 +330,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2429
+   *     google/container/v1/cluster_service.proto;l=2442
    * @return The zone.
    */
   @java.lang.Override
@@ -448,7 +359,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2429
+   *     google/container/v1/cluster_service.proto;l=2442
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -478,7 +389,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2433
+   *     google/container/v1/cluster_service.proto;l=2446
    * @return The clusterId.
    */
   @java.lang.Override
@@ -505,7 +416,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2433
+   *     google/container/v1/cluster_service.proto;l=2446
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -696,7 +607,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -723,7 +634,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -748,7 +659,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getUpdate().equals(other.getUpdate())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -773,7 +684,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -902,17 +813,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetMasterAuthRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1042,7 +946,7 @@ public Builder mergeFrom(com.google.container.v1.SetMasterAuthRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1057,17 +961,67 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetMasterAuthRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 32:
+              {
+                action_ = input.readEnum();
+
+                break;
+              } // case 32
+            case 42:
+              {
+                input.readMessage(getUpdateFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.SetMasterAuthRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1084,7 +1038,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2423
+     *     google/container/v1/cluster_service.proto;l=2436
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -1111,7 +1065,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2423
+     *     google/container/v1/cluster_service.proto;l=2436
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -1138,7 +1092,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2423
+     *     google/container/v1/cluster_service.proto;l=2436
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -1164,7 +1118,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2423
+     *     google/container/v1/cluster_service.proto;l=2436
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1186,7 +1140,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2423
+     *     google/container/v1/cluster_service.proto;l=2436
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1216,7 +1170,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2429
+     *     google/container/v1/cluster_service.proto;l=2442
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1244,7 +1198,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2429
+     *     google/container/v1/cluster_service.proto;l=2442
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1272,7 +1226,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2429
+     *     google/container/v1/cluster_service.proto;l=2442
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1299,7 +1253,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2429
+     *     google/container/v1/cluster_service.proto;l=2442
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1322,7 +1276,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2429
+     *     google/container/v1/cluster_service.proto;l=2442
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1350,7 +1304,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2433
+     *     google/container/v1/cluster_service.proto;l=2446
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1376,7 +1330,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2433
+     *     google/container/v1/cluster_service.proto;l=2446
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1402,7 +1356,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2433
+     *     google/container/v1/cluster_service.proto;l=2446
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1427,7 +1381,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2433
+     *     google/container/v1/cluster_service.proto;l=2446
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1448,7 +1402,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMasterAuthRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2433
+     *     google/container/v1/cluster_service.proto;l=2446
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1900,7 +1854,18 @@ public SetMasterAuthRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetMasterAuthRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMasterAuthRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMasterAuthRequestOrBuilder.java
index 71f523f0..c2d30f11 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMasterAuthRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMasterAuthRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetMasterAuthRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2423
+   *     google/container/v1/cluster_service.proto;l=2436
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetMasterAuthRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2423
+   *     google/container/v1/cluster_service.proto;l=2436
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetMasterAuthRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2429
+   *     google/container/v1/cluster_service.proto;l=2442
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetMasterAuthRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2429
+   *     google/container/v1/cluster_service.proto;l=2442
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetMasterAuthRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2433
+   *     google/container/v1/cluster_service.proto;l=2446
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetMasterAuthRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMasterAuthRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2433
+   *     google/container/v1/cluster_service.proto;l=2446
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMonitoringServiceRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMonitoringServiceRequest.java
index d6f1b6c4..e6ce3550 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMonitoringServiceRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMonitoringServiceRequest.java
@@ -56,80 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetMonitoringServiceRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              monitoringService_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetMonitoringServiceRequest_descriptor;
@@ -159,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2279
+   *     google/container/v1/cluster_service.proto;l=2292
    * @return The projectId.
    */
   @java.lang.Override
@@ -187,7 +113,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2279
+   *     google/container/v1/cluster_service.proto;l=2292
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -219,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2285
+   *     google/container/v1/cluster_service.proto;l=2298
    * @return The zone.
    */
   @java.lang.Override
@@ -248,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2285
+   *     google/container/v1/cluster_service.proto;l=2298
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -278,7 +204,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2289
+   *     google/container/v1/cluster_service.proto;l=2302
    * @return The clusterId.
    */
   @java.lang.Override
@@ -305,7 +231,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2289
+   *     google/container/v1/cluster_service.proto;l=2302
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -467,7 +393,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -491,7 +417,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -512,7 +438,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getMonitoringService().equals(other.getMonitoringService())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -533,7 +459,7 @@ public int hashCode() {
     hash = (53 * hash) + getMonitoringService().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -662,17 +588,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetMonitoringServiceRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -790,7 +709,7 @@ public Builder mergeFrom(com.google.container.v1.SetMonitoringServiceRequest oth
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -805,18 +724,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetMonitoringServiceRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                monitoringService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.SetMonitoringServiceRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -833,7 +795,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2279
+     *     google/container/v1/cluster_service.proto;l=2292
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -860,7 +822,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2279
+     *     google/container/v1/cluster_service.proto;l=2292
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -887,7 +849,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2279
+     *     google/container/v1/cluster_service.proto;l=2292
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -913,7 +875,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2279
+     *     google/container/v1/cluster_service.proto;l=2292
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -935,7 +897,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2279
+     *     google/container/v1/cluster_service.proto;l=2292
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -965,7 +927,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2285
+     *     google/container/v1/cluster_service.proto;l=2298
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -993,7 +955,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2285
+     *     google/container/v1/cluster_service.proto;l=2298
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1021,7 +983,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2285
+     *     google/container/v1/cluster_service.proto;l=2298
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1048,7 +1010,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2285
+     *     google/container/v1/cluster_service.proto;l=2298
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1071,7 +1033,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2285
+     *     google/container/v1/cluster_service.proto;l=2298
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1099,7 +1061,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2289
+     *     google/container/v1/cluster_service.proto;l=2302
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1125,7 +1087,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2289
+     *     google/container/v1/cluster_service.proto;l=2302
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1151,7 +1113,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2289
+     *     google/container/v1/cluster_service.proto;l=2302
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1176,7 +1138,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2289
+     *     google/container/v1/cluster_service.proto;l=2302
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1197,7 +1159,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2289
+     *     google/container/v1/cluster_service.proto;l=2302
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1502,7 +1464,18 @@ public SetMonitoringServiceRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetMonitoringServiceRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMonitoringServiceRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMonitoringServiceRequestOrBuilder.java
index a1f0ed78..3013c4ea 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMonitoringServiceRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetMonitoringServiceRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2279
+   *     google/container/v1/cluster_service.proto;l=2292
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2279
+   *     google/container/v1/cluster_service.proto;l=2292
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2285
+   *     google/container/v1/cluster_service.proto;l=2298
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2285
+   *     google/container/v1/cluster_service.proto;l=2298
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2289
+   *     google/container/v1/cluster_service.proto;l=2302
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2289
+   *     google/container/v1/cluster_service.proto;l=2302
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNetworkPolicyRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNetworkPolicyRequest.java
index 0fbd2ea5..c8e9d2c3 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNetworkPolicyRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNetworkPolicyRequest.java
@@ -55,89 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetNetworkPolicyRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1.NetworkPolicy.Builder subBuilder = null;
-              if (networkPolicy_ != null) {
-                subBuilder = networkPolicy_.toBuilder();
-              }
-              networkPolicy_ =
-                  input.readMessage(
-                      com.google.container.v1.NetworkPolicy.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkPolicy_);
-                networkPolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetNetworkPolicyRequest_descriptor;
@@ -167,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3578
+   *     google/container/v1/cluster_service.proto;l=3591
    * @return The projectId.
    */
   @java.lang.Override
@@ -195,7 +112,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3578
+   *     google/container/v1/cluster_service.proto;l=3591
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -227,7 +144,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3584
+   *     google/container/v1/cluster_service.proto;l=3597
    * @return The zone.
    */
   @java.lang.Override
@@ -256,7 +173,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3584
+   *     google/container/v1/cluster_service.proto;l=3597
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -286,7 +203,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3588
+   *     google/container/v1/cluster_service.proto;l=3601
    * @return The clusterId.
    */
   @java.lang.Override
@@ -313,7 +230,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3588
+   *     google/container/v1/cluster_service.proto;l=3601
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -464,7 +381,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -488,7 +405,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -512,7 +429,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getNetworkPolicy().equals(other.getNetworkPolicy())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -535,7 +452,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -664,17 +581,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetNetworkPolicyRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -799,7 +709,7 @@ public Builder mergeFrom(com.google.container.v1.SetNetworkPolicyRequest other)
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -814,17 +724,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetNetworkPolicyRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getNetworkPolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.SetNetworkPolicyRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -841,7 +795,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3578
+     *     google/container/v1/cluster_service.proto;l=3591
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -868,7 +822,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3578
+     *     google/container/v1/cluster_service.proto;l=3591
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -895,7 +849,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3578
+     *     google/container/v1/cluster_service.proto;l=3591
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -921,7 +875,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3578
+     *     google/container/v1/cluster_service.proto;l=3591
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -943,7 +897,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3578
+     *     google/container/v1/cluster_service.proto;l=3591
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -973,7 +927,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3584
+     *     google/container/v1/cluster_service.proto;l=3597
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1001,7 +955,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3584
+     *     google/container/v1/cluster_service.proto;l=3597
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1029,7 +983,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3584
+     *     google/container/v1/cluster_service.proto;l=3597
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1056,7 +1010,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3584
+     *     google/container/v1/cluster_service.proto;l=3597
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1079,7 +1033,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3584
+     *     google/container/v1/cluster_service.proto;l=3597
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1107,7 +1061,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3588
+     *     google/container/v1/cluster_service.proto;l=3601
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1133,7 +1087,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3588
+     *     google/container/v1/cluster_service.proto;l=3601
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1159,7 +1113,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3588
+     *     google/container/v1/cluster_service.proto;l=3601
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1184,7 +1138,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3588
+     *     google/container/v1/cluster_service.proto;l=3601
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1205,7 +1159,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3588
+     *     google/container/v1/cluster_service.proto;l=3601
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1567,7 +1521,18 @@ public SetNetworkPolicyRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetNetworkPolicyRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNetworkPolicyRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNetworkPolicyRequestOrBuilder.java
index 0e80b5ef..0f619ba9 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNetworkPolicyRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNetworkPolicyRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3578
+   *     google/container/v1/cluster_service.proto;l=3591
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3578
+   *     google/container/v1/cluster_service.proto;l=3591
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3584
+   *     google/container/v1/cluster_service.proto;l=3597
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3584
+   *     google/container/v1/cluster_service.proto;l=3597
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3588
+   *     google/container/v1/cluster_service.proto;l=3601
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3588
+   *     google/container/v1/cluster_service.proto;l=3601
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolAutoscalingRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolAutoscalingRequest.java
index d8b02da7..5688c17e 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolAutoscalingRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolAutoscalingRequest.java
@@ -56,96 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetNodePoolAutoscalingRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1.NodePoolAutoscaling.Builder subBuilder = null;
-              if (autoscaling_ != null) {
-                subBuilder = autoscaling_.toBuilder();
-              }
-              autoscaling_ =
-                  input.readMessage(
-                      com.google.container.v1.NodePoolAutoscaling.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(autoscaling_);
-                autoscaling_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetNodePoolAutoscalingRequest_descriptor;
@@ -175,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2214
+   *     google/container/v1/cluster_service.proto;l=2227
    * @return The projectId.
    */
   @java.lang.Override
@@ -203,7 +113,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2214
+   *     google/container/v1/cluster_service.proto;l=2227
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -235,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2220
+   *     google/container/v1/cluster_service.proto;l=2233
    * @return The zone.
    */
   @java.lang.Override
@@ -264,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2220
+   *     google/container/v1/cluster_service.proto;l=2233
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -294,7 +204,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2224
+   *     google/container/v1/cluster_service.proto;l=2237
    * @return The clusterId.
    */
   @java.lang.Override
@@ -321,7 +231,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2224
+   *     google/container/v1/cluster_service.proto;l=2237
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -351,7 +261,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2228
+   *     google/container/v1/cluster_service.proto;l=2241
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -378,7 +288,7 @@ public java.lang.String getNodePoolId() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2228
+   *     google/container/v1/cluster_service.proto;l=2241
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -534,7 +444,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -561,7 +471,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -586,7 +496,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getAutoscaling().equals(other.getAutoscaling())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -611,7 +521,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -741,17 +651,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetNodePoolAutoscalingRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -883,7 +786,7 @@ public Builder mergeFrom(com.google.container.v1.SetNodePoolAutoscalingRequest o
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -898,18 +801,67 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetNodePoolAutoscalingRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                input.readMessage(getAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.SetNodePoolAutoscalingRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -926,7 +878,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2214
+     *     google/container/v1/cluster_service.proto;l=2227
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -953,7 +905,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2214
+     *     google/container/v1/cluster_service.proto;l=2227
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -980,7 +932,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2214
+     *     google/container/v1/cluster_service.proto;l=2227
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -1006,7 +958,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2214
+     *     google/container/v1/cluster_service.proto;l=2227
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1028,7 +980,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2214
+     *     google/container/v1/cluster_service.proto;l=2227
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1058,7 +1010,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2220
+     *     google/container/v1/cluster_service.proto;l=2233
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1086,7 +1038,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2220
+     *     google/container/v1/cluster_service.proto;l=2233
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1114,7 +1066,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2220
+     *     google/container/v1/cluster_service.proto;l=2233
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1141,7 +1093,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2220
+     *     google/container/v1/cluster_service.proto;l=2233
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1164,7 +1116,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2220
+     *     google/container/v1/cluster_service.proto;l=2233
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1192,7 +1144,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2224
+     *     google/container/v1/cluster_service.proto;l=2237
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1218,7 +1170,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2224
+     *     google/container/v1/cluster_service.proto;l=2237
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1244,7 +1196,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2224
+     *     google/container/v1/cluster_service.proto;l=2237
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1269,7 +1221,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2224
+     *     google/container/v1/cluster_service.proto;l=2237
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1290,7 +1242,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2224
+     *     google/container/v1/cluster_service.proto;l=2237
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1318,7 +1270,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2228
+     *     google/container/v1/cluster_service.proto;l=2241
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1344,7 +1296,7 @@ public java.lang.String getNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2228
+     *     google/container/v1/cluster_service.proto;l=2241
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1370,7 +1322,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2228
+     *     google/container/v1/cluster_service.proto;l=2241
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1395,7 +1347,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2228
+     *     google/container/v1/cluster_service.proto;l=2241
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1416,7 +1368,7 @@ public Builder clearNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2228
+     *     google/container/v1/cluster_service.proto;l=2241
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1784,7 +1736,18 @@ public SetNodePoolAutoscalingRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetNodePoolAutoscalingRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolAutoscalingRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolAutoscalingRequestOrBuilder.java
index a8444284..24cd660c 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolAutoscalingRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolAutoscalingRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2214
+   *     google/container/v1/cluster_service.proto;l=2227
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2214
+   *     google/container/v1/cluster_service.proto;l=2227
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2220
+   *     google/container/v1/cluster_service.proto;l=2233
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2220
+   *     google/container/v1/cluster_service.proto;l=2233
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2224
+   *     google/container/v1/cluster_service.proto;l=2237
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2224
+   *     google/container/v1/cluster_service.proto;l=2237
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -139,7 +139,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2228
+   *     google/container/v1/cluster_service.proto;l=2241
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -155,7 +155,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2228
+   *     google/container/v1/cluster_service.proto;l=2241
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolManagementRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolManagementRequest.java
index 30297e6a..6a2cb33d 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolManagementRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolManagementRequest.java
@@ -57,96 +57,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetNodePoolManagementRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1.NodeManagement.Builder subBuilder = null;
-              if (management_ != null) {
-                subBuilder = management_.toBuilder();
-              }
-              management_ =
-                  input.readMessage(
-                      com.google.container.v1.NodeManagement.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(management_);
-                management_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetNodePoolManagementRequest_descriptor;
@@ -176,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3146
+   *     google/container/v1/cluster_service.proto;l=3159
    * @return The projectId.
    */
   @java.lang.Override
@@ -204,7 +114,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3146
+   *     google/container/v1/cluster_service.proto;l=3159
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -236,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3152
+   *     google/container/v1/cluster_service.proto;l=3165
    * @return The zone.
    */
   @java.lang.Override
@@ -265,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3152
+   *     google/container/v1/cluster_service.proto;l=3165
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -295,7 +205,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3156
+   *     google/container/v1/cluster_service.proto;l=3169
    * @return The clusterId.
    */
   @java.lang.Override
@@ -322,7 +232,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3156
+   *     google/container/v1/cluster_service.proto;l=3169
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -352,7 +262,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3160
+   *     google/container/v1/cluster_service.proto;l=3173
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -379,7 +289,7 @@ public java.lang.String getNodePoolId() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3160
+   *     google/container/v1/cluster_service.proto;l=3173
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -535,7 +445,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -562,7 +472,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -587,7 +497,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getManagement().equals(other.getManagement())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -612,7 +522,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -742,17 +652,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetNodePoolManagementRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -884,7 +787,7 @@ public Builder mergeFrom(com.google.container.v1.SetNodePoolManagementRequest ot
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -899,18 +802,67 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetNodePoolManagementRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                input.readMessage(getManagementFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.SetNodePoolManagementRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -927,7 +879,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3146
+     *     google/container/v1/cluster_service.proto;l=3159
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -954,7 +906,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3146
+     *     google/container/v1/cluster_service.proto;l=3159
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -981,7 +933,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3146
+     *     google/container/v1/cluster_service.proto;l=3159
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -1007,7 +959,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3146
+     *     google/container/v1/cluster_service.proto;l=3159
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1029,7 +981,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3146
+     *     google/container/v1/cluster_service.proto;l=3159
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1059,7 +1011,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3152
+     *     google/container/v1/cluster_service.proto;l=3165
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1087,7 +1039,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3152
+     *     google/container/v1/cluster_service.proto;l=3165
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1115,7 +1067,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3152
+     *     google/container/v1/cluster_service.proto;l=3165
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1142,7 +1094,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3152
+     *     google/container/v1/cluster_service.proto;l=3165
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1165,7 +1117,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3152
+     *     google/container/v1/cluster_service.proto;l=3165
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1193,7 +1145,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3156
+     *     google/container/v1/cluster_service.proto;l=3169
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1219,7 +1171,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3156
+     *     google/container/v1/cluster_service.proto;l=3169
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1245,7 +1197,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3156
+     *     google/container/v1/cluster_service.proto;l=3169
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1270,7 +1222,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3156
+     *     google/container/v1/cluster_service.proto;l=3169
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1291,7 +1243,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3156
+     *     google/container/v1/cluster_service.proto;l=3169
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1319,7 +1271,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3160
+     *     google/container/v1/cluster_service.proto;l=3173
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1345,7 +1297,7 @@ public java.lang.String getNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3160
+     *     google/container/v1/cluster_service.proto;l=3173
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1371,7 +1323,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3160
+     *     google/container/v1/cluster_service.proto;l=3173
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1396,7 +1348,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3160
+     *     google/container/v1/cluster_service.proto;l=3173
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1417,7 +1369,7 @@ public Builder clearNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolManagementRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3160
+     *     google/container/v1/cluster_service.proto;l=3173
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1784,7 +1736,18 @@ public SetNodePoolManagementRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetNodePoolManagementRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolManagementRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolManagementRequestOrBuilder.java
index b719bfa9..e6059ca4 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolManagementRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolManagementRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3146
+   *     google/container/v1/cluster_service.proto;l=3159
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3146
+   *     google/container/v1/cluster_service.proto;l=3159
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3152
+   *     google/container/v1/cluster_service.proto;l=3165
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3152
+   *     google/container/v1/cluster_service.proto;l=3165
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3156
+   *     google/container/v1/cluster_service.proto;l=3169
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3156
+   *     google/container/v1/cluster_service.proto;l=3169
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -139,7 +139,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3160
+   *     google/container/v1/cluster_service.proto;l=3173
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -155,7 +155,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolManagementRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3160
+   *     google/container/v1/cluster_service.proto;l=3173
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolSizeRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolSizeRequest.java
index c45885f1..f2ef95a6 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolSizeRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolSizeRequest.java
@@ -56,85 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetNodePoolSizeRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 40:
-            {
-              nodeCount_ = input.readInt32();
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_SetNodePoolSizeRequest_descriptor;
@@ -164,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3176
+   *     google/container/v1/cluster_service.proto;l=3189
    * @return The projectId.
    */
   @java.lang.Override
@@ -192,7 +113,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3176
+   *     google/container/v1/cluster_service.proto;l=3189
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -224,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3182
+   *     google/container/v1/cluster_service.proto;l=3195
    * @return The zone.
    */
   @java.lang.Override
@@ -253,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3182
+   *     google/container/v1/cluster_service.proto;l=3195
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -283,7 +204,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3186
+   *     google/container/v1/cluster_service.proto;l=3199
    * @return The clusterId.
    */
   @java.lang.Override
@@ -310,7 +231,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3186
+   *     google/container/v1/cluster_service.proto;l=3199
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -340,7 +261,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3190
+   *     google/container/v1/cluster_service.proto;l=3203
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -367,7 +288,7 @@ public java.lang.String getNodePoolId() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3190
+   *     google/container/v1/cluster_service.proto;l=3203
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -487,7 +408,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -514,7 +435,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -536,7 +457,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getNodePoolId().equals(other.getNodePoolId())) return false;
     if (getNodeCount() != other.getNodeCount()) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -559,7 +480,7 @@ public int hashCode() {
     hash = (53 * hash) + getNodeCount();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -688,17 +609,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.SetNodePoolSizeRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -821,7 +735,7 @@ public Builder mergeFrom(com.google.container.v1.SetNodePoolSizeRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -836,17 +750,67 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.SetNodePoolSizeRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 40:
+              {
+                nodeCount_ = input.readInt32();
+
+                break;
+              } // case 40
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.SetNodePoolSizeRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -863,7 +827,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3176
+     *     google/container/v1/cluster_service.proto;l=3189
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -890,7 +854,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3176
+     *     google/container/v1/cluster_service.proto;l=3189
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -917,7 +881,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3176
+     *     google/container/v1/cluster_service.proto;l=3189
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -943,7 +907,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3176
+     *     google/container/v1/cluster_service.proto;l=3189
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -965,7 +929,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3176
+     *     google/container/v1/cluster_service.proto;l=3189
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -995,7 +959,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3182
+     *     google/container/v1/cluster_service.proto;l=3195
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1023,7 +987,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3182
+     *     google/container/v1/cluster_service.proto;l=3195
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1051,7 +1015,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3182
+     *     google/container/v1/cluster_service.proto;l=3195
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1078,7 +1042,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3182
+     *     google/container/v1/cluster_service.proto;l=3195
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1101,7 +1065,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3182
+     *     google/container/v1/cluster_service.proto;l=3195
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1129,7 +1093,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3186
+     *     google/container/v1/cluster_service.proto;l=3199
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1155,7 +1119,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3186
+     *     google/container/v1/cluster_service.proto;l=3199
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1181,7 +1145,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3186
+     *     google/container/v1/cluster_service.proto;l=3199
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1206,7 +1170,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3186
+     *     google/container/v1/cluster_service.proto;l=3199
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1227,7 +1191,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3186
+     *     google/container/v1/cluster_service.proto;l=3199
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1255,7 +1219,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3190
+     *     google/container/v1/cluster_service.proto;l=3203
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1281,7 +1245,7 @@ public java.lang.String getNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3190
+     *     google/container/v1/cluster_service.proto;l=3203
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1307,7 +1271,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3190
+     *     google/container/v1/cluster_service.proto;l=3203
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1332,7 +1296,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3190
+     *     google/container/v1/cluster_service.proto;l=3203
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1353,7 +1317,7 @@ public Builder clearNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3190
+     *     google/container/v1/cluster_service.proto;l=3203
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1569,7 +1533,18 @@ public SetNodePoolSizeRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetNodePoolSizeRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolSizeRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolSizeRequestOrBuilder.java
index 9777b23f..13a13f84 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolSizeRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/SetNodePoolSizeRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3176
+   *     google/container/v1/cluster_service.proto;l=3189
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3176
+   *     google/container/v1/cluster_service.proto;l=3189
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3182
+   *     google/container/v1/cluster_service.proto;l=3195
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3182
+   *     google/container/v1/cluster_service.proto;l=3195
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3186
+   *     google/container/v1/cluster_service.proto;l=3199
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3186
+   *     google/container/v1/cluster_service.proto;l=3199
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -139,7 +139,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3190
+   *     google/container/v1/cluster_service.proto;l=3203
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -155,7 +155,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3190
+   *     google/container/v1/cluster_service.proto;l=3203
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ShieldedInstanceConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ShieldedInstanceConfig.java
index 864c6638..7f1d9ff1 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ShieldedInstanceConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ShieldedInstanceConfig.java
@@ -50,55 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ShieldedInstanceConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enableSecureBoot_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              enableIntegrityMonitoring_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ShieldedInstanceConfig_descriptor;
@@ -177,7 +128,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enableIntegrityMonitoring_ != false) {
       output.writeBool(2, enableIntegrityMonitoring_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -192,7 +143,7 @@ public int getSerializedSize() {
     if (enableIntegrityMonitoring_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(2, enableIntegrityMonitoring_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -210,7 +161,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getEnableSecureBoot() != other.getEnableSecureBoot()) return false;
     if (getEnableIntegrityMonitoring() != other.getEnableIntegrityMonitoring()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -225,7 +176,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableSecureBoot());
     hash = (37 * hash) + ENABLE_INTEGRITY_MONITORING_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableIntegrityMonitoring());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -354,17 +305,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ShieldedInstanceConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -458,7 +402,7 @@ public Builder mergeFrom(com.google.container.v1.ShieldedInstanceConfig other) {
       if (other.getEnableIntegrityMonitoring() != false) {
         setEnableIntegrityMonitoring(other.getEnableIntegrityMonitoring());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -473,17 +417,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ShieldedInstanceConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enableSecureBoot_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                enableIntegrityMonitoring_ = input.readBool();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ShieldedInstanceConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -644,7 +614,18 @@ public ShieldedInstanceConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ShieldedInstanceConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ShieldedNodes.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ShieldedNodes.java
index fa66ae40..50453a0a 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ShieldedNodes.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/ShieldedNodes.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ShieldedNodes(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_ShieldedNodes_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -172,7 +128,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.ShieldedNodes other = (com.google.container.v1.ShieldedNodes) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -185,7 +141,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -313,17 +269,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.ShieldedNodes.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -411,7 +360,7 @@ public Builder mergeFrom(com.google.container.v1.ShieldedNodes other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -426,17 +375,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.ShieldedNodes parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.ShieldedNodes) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -524,7 +493,18 @@ public ShieldedNodes parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ShieldedNodes(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StartIPRotationRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StartIPRotationRequest.java
index 0c081667..b5e1d089 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StartIPRotationRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StartIPRotationRequest.java
@@ -56,78 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private StartIPRotationRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 56:
-            {
-              rotateCredentials_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_StartIPRotationRequest_descriptor;
@@ -157,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3469
+   *     google/container/v1/cluster_service.proto;l=3482
    * @return The projectId.
    */
   @java.lang.Override
@@ -185,7 +113,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3469
+   *     google/container/v1/cluster_service.proto;l=3482
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -217,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3475
+   *     google/container/v1/cluster_service.proto;l=3488
    * @return The zone.
    */
   @java.lang.Override
@@ -246,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3475
+   *     google/container/v1/cluster_service.proto;l=3488
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -276,7 +204,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3479
+   *     google/container/v1/cluster_service.proto;l=3492
    * @return The clusterId.
    */
   @java.lang.Override
@@ -303,7 +231,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3479
+   *     google/container/v1/cluster_service.proto;l=3492
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -418,7 +346,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (rotateCredentials_ != false) {
       output.writeBool(7, rotateCredentials_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -442,7 +370,7 @@ public int getSerializedSize() {
     if (rotateCredentials_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(7, rotateCredentials_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -463,7 +391,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getName().equals(other.getName())) return false;
     if (getRotateCredentials() != other.getRotateCredentials()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -484,7 +412,7 @@ public int hashCode() {
     hash = (53 * hash) + getName().hashCode();
     hash = (37 * hash) + ROTATE_CREDENTIALS_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getRotateCredentials());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -614,17 +542,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.StartIPRotationRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -740,7 +661,7 @@ public Builder mergeFrom(com.google.container.v1.StartIPRotationRequest other) {
       if (other.getRotateCredentials() != false) {
         setRotateCredentials(other.getRotateCredentials());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -755,17 +676,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.StartIPRotationRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 56:
+              {
+                rotateCredentials_ = input.readBool();
+
+                break;
+              } // case 56
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.StartIPRotationRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -782,7 +747,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3469
+     *     google/container/v1/cluster_service.proto;l=3482
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -809,7 +774,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3469
+     *     google/container/v1/cluster_service.proto;l=3482
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -836,7 +801,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3469
+     *     google/container/v1/cluster_service.proto;l=3482
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -862,7 +827,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3469
+     *     google/container/v1/cluster_service.proto;l=3482
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -884,7 +849,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3469
+     *     google/container/v1/cluster_service.proto;l=3482
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -914,7 +879,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3475
+     *     google/container/v1/cluster_service.proto;l=3488
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -942,7 +907,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3475
+     *     google/container/v1/cluster_service.proto;l=3488
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -970,7 +935,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3475
+     *     google/container/v1/cluster_service.proto;l=3488
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -997,7 +962,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3475
+     *     google/container/v1/cluster_service.proto;l=3488
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1020,7 +985,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3475
+     *     google/container/v1/cluster_service.proto;l=3488
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1048,7 +1013,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3479
+     *     google/container/v1/cluster_service.proto;l=3492
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1074,7 +1039,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3479
+     *     google/container/v1/cluster_service.proto;l=3492
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1100,7 +1065,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3479
+     *     google/container/v1/cluster_service.proto;l=3492
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1125,7 +1090,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3479
+     *     google/container/v1/cluster_service.proto;l=3492
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1146,7 +1111,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.StartIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3479
+     *     google/container/v1/cluster_service.proto;l=3492
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1357,7 +1322,18 @@ public StartIPRotationRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new StartIPRotationRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StartIPRotationRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StartIPRotationRequestOrBuilder.java
index 90a895c6..02e656c4 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StartIPRotationRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StartIPRotationRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface StartIPRotationRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3469
+   *     google/container/v1/cluster_service.proto;l=3482
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface StartIPRotationRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3469
+   *     google/container/v1/cluster_service.proto;l=3482
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface StartIPRotationRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3475
+   *     google/container/v1/cluster_service.proto;l=3488
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface StartIPRotationRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3475
+   *     google/container/v1/cluster_service.proto;l=3488
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface StartIPRotationRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3479
+   *     google/container/v1/cluster_service.proto;l=3492
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface StartIPRotationRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.StartIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3479
+   *     google/container/v1/cluster_service.proto;l=3492
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StatusCondition.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StatusCondition.java
index dde979ad..e562ecc8 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StatusCondition.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StatusCondition.java
@@ -55,66 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private StatusCondition(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              code_ = rawValue;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              message_ = s;
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              canonicalCode_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_StatusCondition_descriptor;
@@ -394,7 +334,7 @@ private Code(int value) {
    * .google.container.v1.StatusCondition.Code code = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.StatusCondition.code is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3654
+   *     google/container/v1/cluster_service.proto;l=3667
    * @return The enum numeric value on the wire for code.
    */
   @java.lang.Override
@@ -413,7 +353,7 @@ public int getCodeValue() {
    * .google.container.v1.StatusCondition.Code code = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.StatusCondition.code is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3654
+   *     google/container/v1/cluster_service.proto;l=3667
    * @return The code.
    */
   @java.lang.Override
@@ -532,7 +472,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (canonicalCode_ != com.google.rpc.Code.OK.getNumber()) {
       output.writeEnum(3, canonicalCode_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -550,7 +490,7 @@ public int getSerializedSize() {
     if (canonicalCode_ != com.google.rpc.Code.OK.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, canonicalCode_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -568,7 +508,7 @@ public boolean equals(final java.lang.Object obj) {
     if (code_ != other.code_) return false;
     if (!getMessage().equals(other.getMessage())) return false;
     if (canonicalCode_ != other.canonicalCode_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -585,7 +525,7 @@ public int hashCode() {
     hash = (53 * hash) + getMessage().hashCode();
     hash = (37 * hash) + CANONICAL_CODE_FIELD_NUMBER;
     hash = (53 * hash) + canonicalCode_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -715,17 +655,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.StatusCondition.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -826,7 +759,7 @@ public Builder mergeFrom(com.google.container.v1.StatusCondition other) {
       if (other.canonicalCode_ != 0) {
         setCanonicalCodeValue(other.getCanonicalCodeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -841,17 +774,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.StatusCondition parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                code_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                message_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                canonicalCode_ = input.readEnum();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.StatusCondition) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -867,7 +832,7 @@ public Builder mergeFrom(
      * .google.container.v1.StatusCondition.Code code = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.StatusCondition.code is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3654
+     *     google/container/v1/cluster_service.proto;l=3667
      * @return The enum numeric value on the wire for code.
      */
     @java.lang.Override
@@ -886,7 +851,7 @@ public int getCodeValue() {
      * .google.container.v1.StatusCondition.Code code = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.StatusCondition.code is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3654
+     *     google/container/v1/cluster_service.proto;l=3667
      * @param value The enum numeric value on the wire for code to set.
      * @return This builder for chaining.
      */
@@ -908,7 +873,7 @@ public Builder setCodeValue(int value) {
      * .google.container.v1.StatusCondition.Code code = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.StatusCondition.code is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3654
+     *     google/container/v1/cluster_service.proto;l=3667
      * @return The code.
      */
     @java.lang.Override
@@ -930,7 +895,7 @@ public com.google.container.v1.StatusCondition.Code getCode() {
      * .google.container.v1.StatusCondition.Code code = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.StatusCondition.code is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3654
+     *     google/container/v1/cluster_service.proto;l=3667
      * @param value The code to set.
      * @return This builder for chaining.
      */
@@ -955,7 +920,7 @@ public Builder setCode(com.google.container.v1.StatusCondition.Code value) {
      * .google.container.v1.StatusCondition.Code code = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.StatusCondition.code is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=3654
+     *     google/container/v1/cluster_service.proto;l=3667
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1194,7 +1159,18 @@ public StatusCondition parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new StatusCondition(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StatusConditionOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StatusConditionOrBuilder.java
index 6e257d24..03ba0c58 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StatusConditionOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/StatusConditionOrBuilder.java
@@ -34,7 +34,7 @@ public interface StatusConditionOrBuilder
    * .google.container.v1.StatusCondition.Code code = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.StatusCondition.code is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3654
+   *     google/container/v1/cluster_service.proto;l=3667
    * @return The enum numeric value on the wire for code.
    */
   @java.lang.Deprecated
@@ -50,7 +50,7 @@ public interface StatusConditionOrBuilder
    * .google.container.v1.StatusCondition.Code code = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.StatusCondition.code is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=3654
+   *     google/container/v1/cluster_service.proto;l=3667
    * @return The code.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/TimeWindow.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/TimeWindow.java
index e26bbe53..27c4fea4 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/TimeWindow.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/TimeWindow.java
@@ -50,94 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private TimeWindow(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.protobuf.Timestamp.Builder subBuilder = null;
-              if (startTime_ != null) {
-                subBuilder = startTime_.toBuilder();
-              }
-              startTime_ =
-                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(startTime_);
-                startTime_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 18:
-            {
-              com.google.protobuf.Timestamp.Builder subBuilder = null;
-              if (endTime_ != null) {
-                subBuilder = endTime_.toBuilder();
-              }
-              endTime_ =
-                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(endTime_);
-                endTime_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1.MaintenanceExclusionOptions.Builder subBuilder = null;
-              if (optionsCase_ == 3) {
-                subBuilder =
-                    ((com.google.container.v1.MaintenanceExclusionOptions) options_).toBuilder();
-              }
-              options_ =
-                  input.readMessage(
-                      com.google.container.v1.MaintenanceExclusionOptions.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(
-                    (com.google.container.v1.MaintenanceExclusionOptions) options_);
-                options_ = subBuilder.buildPartial();
-              }
-              optionsCase_ = 3;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_TimeWindow_descriptor;
@@ -373,7 +285,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (optionsCase_ == 3) {
       output.writeMessage(3, (com.google.container.v1.MaintenanceExclusionOptions) options_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -393,7 +305,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               3, (com.google.container.v1.MaintenanceExclusionOptions) options_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -425,7 +337,7 @@ public boolean equals(final java.lang.Object obj) {
       case 0:
       default:
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -452,7 +364,7 @@ public int hashCode() {
       case 0:
       default:
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -580,22 +492,18 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.TimeWindow.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
     public Builder clear() {
       super.clear();
+      if (maintenanceExclusionOptionsBuilder_ != null) {
+        maintenanceExclusionOptionsBuilder_.clear();
+      }
       if (startTimeBuilder_ == null) {
         startTime_ = null;
       } else {
@@ -720,7 +628,7 @@ public Builder mergeFrom(com.google.container.v1.TimeWindow other) {
             break;
           }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -735,17 +643,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.TimeWindow parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getStartTimeFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(getEndTimeFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(
+                    getMaintenanceExclusionOptionsFieldBuilder().getBuilder(), extensionRegistry);
+                optionsCase_ = 3;
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.TimeWindow) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1395,7 +1336,18 @@ public TimeWindow parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new TimeWindow(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateClusterRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateClusterRequest.java
index d146b1c4..cc85da73 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateClusterRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateClusterRequest.java
@@ -55,89 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UpdateClusterRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1.ClusterUpdate.Builder subBuilder = null;
-              if (update_ != null) {
-                subBuilder = update_.toBuilder();
-              }
-              update_ =
-                  input.readMessage(
-                      com.google.container.v1.ClusterUpdate.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(update_);
-                update_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_UpdateClusterRequest_descriptor;
@@ -167,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2099
+   *     google/container/v1/cluster_service.proto;l=2109
    * @return The projectId.
    */
   @java.lang.Override
@@ -195,7 +112,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2099
+   *     google/container/v1/cluster_service.proto;l=2109
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -227,7 +144,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2105
+   *     google/container/v1/cluster_service.proto;l=2115
    * @return The zone.
    */
   @java.lang.Override
@@ -256,7 +173,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2105
+   *     google/container/v1/cluster_service.proto;l=2115
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -286,7 +203,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2109
+   *     google/container/v1/cluster_service.proto;l=2119
    * @return The clusterId.
    */
   @java.lang.Override
@@ -313,7 +230,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2109
+   *     google/container/v1/cluster_service.proto;l=2119
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -459,7 +376,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -483,7 +400,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -507,7 +424,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getUpdate().equals(other.getUpdate())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -530,7 +447,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -659,17 +576,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.UpdateClusterRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -793,7 +703,7 @@ public Builder mergeFrom(com.google.container.v1.UpdateClusterRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -808,17 +718,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.UpdateClusterRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getUpdateFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.UpdateClusterRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -835,7 +789,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2099
+     *     google/container/v1/cluster_service.proto;l=2109
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -862,7 +816,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2099
+     *     google/container/v1/cluster_service.proto;l=2109
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -889,7 +843,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2099
+     *     google/container/v1/cluster_service.proto;l=2109
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -915,7 +869,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2099
+     *     google/container/v1/cluster_service.proto;l=2109
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -937,7 +891,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2099
+     *     google/container/v1/cluster_service.proto;l=2109
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -967,7 +921,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2105
+     *     google/container/v1/cluster_service.proto;l=2115
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -995,7 +949,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2105
+     *     google/container/v1/cluster_service.proto;l=2115
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1023,7 +977,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2105
+     *     google/container/v1/cluster_service.proto;l=2115
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1050,7 +1004,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2105
+     *     google/container/v1/cluster_service.proto;l=2115
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1073,7 +1027,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2105
+     *     google/container/v1/cluster_service.proto;l=2115
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1101,7 +1055,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2109
+     *     google/container/v1/cluster_service.proto;l=2119
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1127,7 +1081,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2109
+     *     google/container/v1/cluster_service.proto;l=2119
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1153,7 +1107,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2109
+     *     google/container/v1/cluster_service.proto;l=2119
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1178,7 +1132,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2109
+     *     google/container/v1/cluster_service.proto;l=2119
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1199,7 +1153,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2109
+     *     google/container/v1/cluster_service.proto;l=2119
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1561,7 +1515,18 @@ public UpdateClusterRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UpdateClusterRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateClusterRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateClusterRequestOrBuilder.java
index 1dd003ff..94a4000c 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateClusterRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateClusterRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface UpdateClusterRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2099
+   *     google/container/v1/cluster_service.proto;l=2109
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface UpdateClusterRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2099
+   *     google/container/v1/cluster_service.proto;l=2109
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface UpdateClusterRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2105
+   *     google/container/v1/cluster_service.proto;l=2115
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface UpdateClusterRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2105
+   *     google/container/v1/cluster_service.proto;l=2115
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface UpdateClusterRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2109
+   *     google/container/v1/cluster_service.proto;l=2119
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface UpdateClusterRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2109
+   *     google/container/v1/cluster_service.proto;l=2119
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateMasterRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateMasterRequest.java
index c866e5af..068f0659 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateMasterRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateMasterRequest.java
@@ -56,80 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UpdateMasterRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              masterVersion_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_UpdateMasterRequest_descriptor;
@@ -159,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2371
+   *     google/container/v1/cluster_service.proto;l=2384
    * @return The projectId.
    */
   @java.lang.Override
@@ -187,7 +113,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2371
+   *     google/container/v1/cluster_service.proto;l=2384
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -219,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2377
+   *     google/container/v1/cluster_service.proto;l=2390
    * @return The zone.
    */
   @java.lang.Override
@@ -248,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2377
+   *     google/container/v1/cluster_service.proto;l=2390
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -278,7 +204,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2381
+   *     google/container/v1/cluster_service.proto;l=2394
    * @return The clusterId.
    */
   @java.lang.Override
@@ -305,7 +231,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2381
+   *     google/container/v1/cluster_service.proto;l=2394
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -465,7 +391,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -489,7 +415,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -510,7 +436,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getMasterVersion().equals(other.getMasterVersion())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -531,7 +457,7 @@ public int hashCode() {
     hash = (53 * hash) + getMasterVersion().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -660,17 +586,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.UpdateMasterRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -787,7 +706,7 @@ public Builder mergeFrom(com.google.container.v1.UpdateMasterRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -802,17 +721,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.UpdateMasterRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                masterVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.UpdateMasterRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -829,7 +792,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2371
+     *     google/container/v1/cluster_service.proto;l=2384
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -856,7 +819,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2371
+     *     google/container/v1/cluster_service.proto;l=2384
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -883,7 +846,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2371
+     *     google/container/v1/cluster_service.proto;l=2384
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -909,7 +872,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2371
+     *     google/container/v1/cluster_service.proto;l=2384
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -931,7 +894,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2371
+     *     google/container/v1/cluster_service.proto;l=2384
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -961,7 +924,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2377
+     *     google/container/v1/cluster_service.proto;l=2390
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -989,7 +952,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2377
+     *     google/container/v1/cluster_service.proto;l=2390
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1017,7 +980,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2377
+     *     google/container/v1/cluster_service.proto;l=2390
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1044,7 +1007,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2377
+     *     google/container/v1/cluster_service.proto;l=2390
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1067,7 +1030,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2377
+     *     google/container/v1/cluster_service.proto;l=2390
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1095,7 +1058,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2381
+     *     google/container/v1/cluster_service.proto;l=2394
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1121,7 +1084,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2381
+     *     google/container/v1/cluster_service.proto;l=2394
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1147,7 +1110,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2381
+     *     google/container/v1/cluster_service.proto;l=2394
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1172,7 +1135,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2381
+     *     google/container/v1/cluster_service.proto;l=2394
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1193,7 +1156,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateMasterRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2381
+     *     google/container/v1/cluster_service.proto;l=2394
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1493,7 +1456,18 @@ public UpdateMasterRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UpdateMasterRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateMasterRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateMasterRequestOrBuilder.java
index b2510fda..e918098f 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateMasterRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateMasterRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface UpdateMasterRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2371
+   *     google/container/v1/cluster_service.proto;l=2384
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface UpdateMasterRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2371
+   *     google/container/v1/cluster_service.proto;l=2384
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface UpdateMasterRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2377
+   *     google/container/v1/cluster_service.proto;l=2390
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface UpdateMasterRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2377
+   *     google/container/v1/cluster_service.proto;l=2390
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface UpdateMasterRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2381
+   *     google/container/v1/cluster_service.proto;l=2394
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface UpdateMasterRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateMasterRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2381
+   *     google/container/v1/cluster_service.proto;l=2394
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateNodePoolRequest.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateNodePoolRequest.java
index 165ffde5..c025ca46 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateNodePoolRequest.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateNodePoolRequest.java
@@ -59,280 +59,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UpdateNodePoolRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodeVersion_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              imageType_ = s;
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 106:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                locations_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              locations_.add(s);
-              break;
-            }
-          case 114:
-            {
-              com.google.container.v1.WorkloadMetadataConfig.Builder subBuilder = null;
-              if (workloadMetadataConfig_ != null) {
-                subBuilder = workloadMetadataConfig_.toBuilder();
-              }
-              workloadMetadataConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.WorkloadMetadataConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(workloadMetadataConfig_);
-                workloadMetadataConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 122:
-            {
-              com.google.container.v1.NodePool.UpgradeSettings.Builder subBuilder = null;
-              if (upgradeSettings_ != null) {
-                subBuilder = upgradeSettings_.toBuilder();
-              }
-              upgradeSettings_ =
-                  input.readMessage(
-                      com.google.container.v1.NodePool.UpgradeSettings.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(upgradeSettings_);
-                upgradeSettings_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 130:
-            {
-              com.google.container.v1.NetworkTags.Builder subBuilder = null;
-              if (tags_ != null) {
-                subBuilder = tags_.toBuilder();
-              }
-              tags_ =
-                  input.readMessage(
-                      com.google.container.v1.NetworkTags.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(tags_);
-                tags_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 138:
-            {
-              com.google.container.v1.NodeTaints.Builder subBuilder = null;
-              if (taints_ != null) {
-                subBuilder = taints_.toBuilder();
-              }
-              taints_ =
-                  input.readMessage(com.google.container.v1.NodeTaints.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(taints_);
-                taints_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 146:
-            {
-              com.google.container.v1.NodeLabels.Builder subBuilder = null;
-              if (labels_ != null) {
-                subBuilder = labels_.toBuilder();
-              }
-              labels_ =
-                  input.readMessage(com.google.container.v1.NodeLabels.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(labels_);
-                labels_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 154:
-            {
-              com.google.container.v1.LinuxNodeConfig.Builder subBuilder = null;
-              if (linuxNodeConfig_ != null) {
-                subBuilder = linuxNodeConfig_.toBuilder();
-              }
-              linuxNodeConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.LinuxNodeConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(linuxNodeConfig_);
-                linuxNodeConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 162:
-            {
-              com.google.container.v1.NodeKubeletConfig.Builder subBuilder = null;
-              if (kubeletConfig_ != null) {
-                subBuilder = kubeletConfig_.toBuilder();
-              }
-              kubeletConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.NodeKubeletConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(kubeletConfig_);
-                kubeletConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 170:
-            {
-              com.google.container.v1.NodeNetworkConfig.Builder subBuilder = null;
-              if (nodeNetworkConfig_ != null) {
-                subBuilder = nodeNetworkConfig_.toBuilder();
-              }
-              nodeNetworkConfig_ =
-                  input.readMessage(
-                      com.google.container.v1.NodeNetworkConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodeNetworkConfig_);
-                nodeNetworkConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 178:
-            {
-              com.google.container.v1.GcfsConfig.Builder subBuilder = null;
-              if (gcfsConfig_ != null) {
-                subBuilder = gcfsConfig_.toBuilder();
-              }
-              gcfsConfig_ =
-                  input.readMessage(com.google.container.v1.GcfsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gcfsConfig_);
-                gcfsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 186:
-            {
-              com.google.container.v1.ConfidentialNodes.Builder subBuilder = null;
-              if (confidentialNodes_ != null) {
-                subBuilder = confidentialNodes_.toBuilder();
-              }
-              confidentialNodes_ =
-                  input.readMessage(
-                      com.google.container.v1.ConfidentialNodes.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(confidentialNodes_);
-                confidentialNodes_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 234:
-            {
-              com.google.container.v1.VirtualNIC.Builder subBuilder = null;
-              if (gvnic_ != null) {
-                subBuilder = gvnic_.toBuilder();
-              }
-              gvnic_ =
-                  input.readMessage(com.google.container.v1.VirtualNIC.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gvnic_);
-                gvnic_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        locations_ = locations_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_UpdateNodePoolRequest_descriptor;
@@ -362,7 +88,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2124
+   *     google/container/v1/cluster_service.proto;l=2134
    * @return The projectId.
    */
   @java.lang.Override
@@ -390,7 +116,7 @@ public java.lang.String getProjectId() {
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2124
+   *     google/container/v1/cluster_service.proto;l=2134
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -422,7 +148,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2130
+   *     google/container/v1/cluster_service.proto;l=2140
    * @return The zone.
    */
   @java.lang.Override
@@ -451,7 +177,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2130
+   *     google/container/v1/cluster_service.proto;l=2140
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -481,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2134
+   *     google/container/v1/cluster_service.proto;l=2144
    * @return The clusterId.
    */
   @java.lang.Override
@@ -508,7 +234,7 @@ public java.lang.String getClusterId() {
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2134
+   *     google/container/v1/cluster_service.proto;l=2144
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -538,7 +264,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2138
+   *     google/container/v1/cluster_service.proto;l=2148
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -565,7 +291,7 @@ public java.lang.String getNodePoolId() {
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2138
+   *     google/container/v1/cluster_service.proto;l=2148
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -1368,6 +1094,54 @@ public com.google.container.v1.VirtualNICOrBuilder getGvnicOrBuilder() {
     return getGvnic();
   }
 
+  public static final int LOGGING_CONFIG_FIELD_NUMBER = 32;
+  private com.google.container.v1.NodePoolLoggingConfig loggingConfig_;
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasLoggingConfig() {
+    return loggingConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+   *
+   * @return The loggingConfig.
+   */
+  @java.lang.Override
+  public com.google.container.v1.NodePoolLoggingConfig getLoggingConfig() {
+    return loggingConfig_ == null
+        ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+        : loggingConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+   */
+  @java.lang.Override
+  public com.google.container.v1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+    return getLoggingConfig();
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -1439,7 +1213,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (gvnic_ != null) {
       output.writeMessage(29, getGvnic());
     }
-    unknownFields.writeTo(output);
+    if (loggingConfig_ != null) {
+      output.writeMessage(32, getLoggingConfig());
+    }
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1511,7 +1288,10 @@ public int getSerializedSize() {
     if (gvnic_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(29, getGvnic());
     }
-    size += unknownFields.getSerializedSize();
+    if (loggingConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(32, getLoggingConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1579,7 +1359,11 @@ public boolean equals(final java.lang.Object obj) {
     if (hasGvnic()) {
       if (!getGvnic().equals(other.getGvnic())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (hasLoggingConfig() != other.hasLoggingConfig()) return false;
+    if (hasLoggingConfig()) {
+      if (!getLoggingConfig().equals(other.getLoggingConfig())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1652,7 +1436,11 @@ public int hashCode() {
       hash = (37 * hash) + GVNIC_FIELD_NUMBER;
       hash = (53 * hash) + getGvnic().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    if (hasLoggingConfig()) {
+      hash = (37 * hash) + LOGGING_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getLoggingConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1781,17 +1569,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.UpdateNodePoolRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1879,6 +1660,12 @@ public Builder clear() {
         gvnic_ = null;
         gvnicBuilder_ = null;
       }
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
       return this;
     }
 
@@ -1974,6 +1761,11 @@ public com.google.container.v1.UpdateNodePoolRequest buildPartial() {
       } else {
         result.gvnic_ = gvnicBuilder_.build();
       }
+      if (loggingConfigBuilder_ == null) {
+        result.loggingConfig_ = loggingConfig_;
+      } else {
+        result.loggingConfig_ = loggingConfigBuilder_.build();
+      }
       onBuilt();
       return result;
     }
@@ -2094,7 +1886,10 @@ public Builder mergeFrom(com.google.container.v1.UpdateNodePoolRequest other) {
       if (other.hasGvnic()) {
         mergeGvnic(other.getGvnic());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      if (other.hasLoggingConfig()) {
+        mergeLoggingConfig(other.getLoggingConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -2109,17 +1904,155 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.UpdateNodePoolRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                nodeVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                imageType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 66:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 106:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureLocationsIsMutable();
+                locations_.add(s);
+                break;
+              } // case 106
+            case 114:
+              {
+                input.readMessage(
+                    getWorkloadMetadataConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 114
+            case 122:
+              {
+                input.readMessage(getUpgradeSettingsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 122
+            case 130:
+              {
+                input.readMessage(getTagsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 130
+            case 138:
+              {
+                input.readMessage(getTaintsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 138
+            case 146:
+              {
+                input.readMessage(getLabelsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 146
+            case 154:
+              {
+                input.readMessage(getLinuxNodeConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 154
+            case 162:
+              {
+                input.readMessage(getKubeletConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 162
+            case 170:
+              {
+                input.readMessage(
+                    getNodeNetworkConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 170
+            case 178:
+              {
+                input.readMessage(getGcfsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 178
+            case 186:
+              {
+                input.readMessage(
+                    getConfidentialNodesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 186
+            case 234:
+              {
+                input.readMessage(getGvnicFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 234
+            case 258:
+              {
+                input.readMessage(getLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 258
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.UpdateNodePoolRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2138,7 +2071,7 @@ public Builder mergeFrom(
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2124
+     *     google/container/v1/cluster_service.proto;l=2134
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -2165,7 +2098,7 @@ public java.lang.String getProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2124
+     *     google/container/v1/cluster_service.proto;l=2134
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -2192,7 +2125,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2124
+     *     google/container/v1/cluster_service.proto;l=2134
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -2218,7 +2151,7 @@ public Builder setProjectId(java.lang.String value) {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2124
+     *     google/container/v1/cluster_service.proto;l=2134
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2240,7 +2173,7 @@ public Builder clearProjectId() {
      * string project_id = 1 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2124
+     *     google/container/v1/cluster_service.proto;l=2134
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -2270,7 +2203,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2130
+     *     google/container/v1/cluster_service.proto;l=2140
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -2298,7 +2231,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2130
+     *     google/container/v1/cluster_service.proto;l=2140
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -2326,7 +2259,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2130
+     *     google/container/v1/cluster_service.proto;l=2140
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -2353,7 +2286,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2130
+     *     google/container/v1/cluster_service.proto;l=2140
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2376,7 +2309,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2130
+     *     google/container/v1/cluster_service.proto;l=2140
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -2404,7 +2337,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2134
+     *     google/container/v1/cluster_service.proto;l=2144
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -2430,7 +2363,7 @@ public java.lang.String getClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2134
+     *     google/container/v1/cluster_service.proto;l=2144
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -2456,7 +2389,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2134
+     *     google/container/v1/cluster_service.proto;l=2144
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -2481,7 +2414,7 @@ public Builder setClusterId(java.lang.String value) {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2134
+     *     google/container/v1/cluster_service.proto;l=2144
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2502,7 +2435,7 @@ public Builder clearClusterId() {
      * string cluster_id = 3 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2134
+     *     google/container/v1/cluster_service.proto;l=2144
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -2530,7 +2463,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2138
+     *     google/container/v1/cluster_service.proto;l=2148
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -2556,7 +2489,7 @@ public java.lang.String getNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2138
+     *     google/container/v1/cluster_service.proto;l=2148
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -2582,7 +2515,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2138
+     *     google/container/v1/cluster_service.proto;l=2148
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -2607,7 +2540,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2138
+     *     google/container/v1/cluster_service.proto;l=2148
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2628,7 +2561,7 @@ public Builder clearNodePoolId() {
      * string node_pool_id = 4 [deprecated = true];
      *
      * @deprecated google.container.v1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1/cluster_service.proto;l=2138
+     *     google/container/v1/cluster_service.proto;l=2148
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -5303,6 +5236,192 @@ public com.google.container.v1.VirtualNICOrBuilder getGvnicOrBuilder() {
       return gvnicBuilder_;
     }
 
+    private com.google.container.v1.NodePoolLoggingConfig loggingConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1.NodePoolLoggingConfig,
+            com.google.container.v1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1.NodePoolLoggingConfigOrBuilder>
+        loggingConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+     *
+     * @return Whether the loggingConfig field is set.
+     */
+    public boolean hasLoggingConfig() {
+      return loggingConfigBuilder_ != null || loggingConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+     *
+     * @return The loggingConfig.
+     */
+    public com.google.container.v1.NodePoolLoggingConfig getLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        return loggingConfig_ == null
+            ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      } else {
+        return loggingConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public Builder setLoggingConfig(com.google.container.v1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        loggingConfig_ = value;
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public Builder setLoggingConfig(
+        com.google.container.v1.NodePoolLoggingConfig.Builder builderForValue) {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public Builder mergeLoggingConfig(com.google.container.v1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (loggingConfig_ != null) {
+          loggingConfig_ =
+              com.google.container.v1.NodePoolLoggingConfig.newBuilder(loggingConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          loggingConfig_ = value;
+        }
+        onChanged();
+      } else {
+        loggingConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public Builder clearLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+        onChanged();
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public com.google.container.v1.NodePoolLoggingConfig.Builder getLoggingConfigBuilder() {
+
+      onChanged();
+      return getLoggingConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public com.google.container.v1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+      if (loggingConfigBuilder_ != null) {
+        return loggingConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return loggingConfig_ == null
+            ? com.google.container.v1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1.NodePoolLoggingConfig,
+            com.google.container.v1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1.NodePoolLoggingConfigOrBuilder>
+        getLoggingConfigFieldBuilder() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.container.v1.NodePoolLoggingConfig,
+                com.google.container.v1.NodePoolLoggingConfig.Builder,
+                com.google.container.v1.NodePoolLoggingConfigOrBuilder>(
+                getLoggingConfig(), getParentForChildren(), isClean());
+        loggingConfig_ = null;
+      }
+      return loggingConfigBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
@@ -5335,7 +5454,18 @@ public UpdateNodePoolRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UpdateNodePoolRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateNodePoolRequestOrBuilder.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateNodePoolRequestOrBuilder.java
index fa7b0d42..7a6ba53c 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateNodePoolRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpdateNodePoolRequestOrBuilder.java
@@ -35,7 +35,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2124
+   *     google/container/v1/cluster_service.proto;l=2134
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -52,7 +52,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * string project_id = 1 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2124
+   *     google/container/v1/cluster_service.proto;l=2134
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -71,7 +71,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2130
+   *     google/container/v1/cluster_service.proto;l=2140
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -89,7 +89,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2130
+   *     google/container/v1/cluster_service.proto;l=2140
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -106,7 +106,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2134
+   *     google/container/v1/cluster_service.proto;l=2144
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -122,7 +122,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * string cluster_id = 3 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2134
+   *     google/container/v1/cluster_service.proto;l=2144
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -139,7 +139,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2138
+   *     google/container/v1/cluster_service.proto;l=2148
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -155,7 +155,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * string node_pool_id = 4 [deprecated = true];
    *
    * @deprecated google.container.v1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1/cluster_service.proto;l=2138
+   *     google/container/v1/cluster_service.proto;l=2148
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
@@ -728,4 +728,39 @@ public interface UpdateNodePoolRequestOrBuilder
    * .google.container.v1.VirtualNIC gvnic = 29;
    */
   com.google.container.v1.VirtualNICOrBuilder getGvnicOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  boolean hasLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+   *
+   * @return The loggingConfig.
+   */
+  com.google.container.v1.NodePoolLoggingConfig getLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1.NodePoolLoggingConfig logging_config = 32;
+   */
+  com.google.container.v1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder();
 }
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpgradeAvailableEvent.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpgradeAvailableEvent.java
index 85efbf45..4693c690 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpgradeAvailableEvent.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpgradeAvailableEvent.java
@@ -55,82 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UpgradeAvailableEvent(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              version_ = s;
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              resourceType_ = rawValue;
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1.ReleaseChannel.Builder subBuilder = null;
-              if (releaseChannel_ != null) {
-                subBuilder = releaseChannel_.toBuilder();
-              }
-              releaseChannel_ =
-                  input.readMessage(
-                      com.google.container.v1.ReleaseChannel.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(releaseChannel_);
-                releaseChannel_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              resource_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_UpgradeAvailableEvent_descriptor;
@@ -361,7 +285,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resource_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, resource_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -384,7 +308,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resource_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, resource_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -407,7 +331,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getReleaseChannel().equals(other.getReleaseChannel())) return false;
     }
     if (!getResource().equals(other.getResource())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -428,7 +352,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + RESOURCE_FIELD_NUMBER;
     hash = (53 * hash) + getResource().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -558,17 +482,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.UpgradeAvailableEvent.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -684,7 +601,7 @@ public Builder mergeFrom(com.google.container.v1.UpgradeAvailableEvent other) {
         resource_ = other.resource_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -699,17 +616,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.UpgradeAvailableEvent parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                version_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                resourceType_ = input.readEnum();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                input.readMessage(getReleaseChannelFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 34:
+              {
+                resource_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.UpgradeAvailableEvent) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1248,7 +1203,18 @@ public UpgradeAvailableEvent parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UpgradeAvailableEvent(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpgradeEvent.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpgradeEvent.java
index 5698bb8f..5f457956 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpgradeEvent.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UpgradeEvent.java
@@ -57,95 +57,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UpgradeEvent(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              resourceType_ = rawValue;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              operation_ = s;
-              break;
-            }
-          case 26:
-            {
-              com.google.protobuf.Timestamp.Builder subBuilder = null;
-              if (operationStartTime_ != null) {
-                subBuilder = operationStartTime_.toBuilder();
-              }
-              operationStartTime_ =
-                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(operationStartTime_);
-                operationStartTime_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              currentVersion_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              targetVersion_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              resource_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_UpgradeEvent_descriptor;
@@ -477,7 +388,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resource_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, resource_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -506,7 +417,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resource_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, resource_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -530,7 +441,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getCurrentVersion().equals(other.getCurrentVersion())) return false;
     if (!getTargetVersion().equals(other.getTargetVersion())) return false;
     if (!getResource().equals(other.getResource())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -555,7 +466,7 @@ public int hashCode() {
     hash = (53 * hash) + getTargetVersion().hashCode();
     hash = (37 * hash) + RESOURCE_FIELD_NUMBER;
     hash = (53 * hash) + getResource().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -684,17 +595,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.UpgradeEvent.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -823,7 +727,7 @@ public Builder mergeFrom(com.google.container.v1.UpgradeEvent other) {
         resource_ = other.resource_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -838,17 +742,68 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.UpgradeEvent parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                resourceType_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                operation_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(
+                    getOperationStartTimeFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 34:
+              {
+                currentVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                targetVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                resource_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.UpgradeEvent) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1589,7 +1544,18 @@ public UpgradeEvent parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UpgradeEvent(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UsableSubnetwork.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UsableSubnetwork.java
index de1701c8..9887a6ff 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UsableSubnetwork.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UsableSubnetwork.java
@@ -57,91 +57,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UsableSubnetwork(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              subnetwork_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              network_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              ipCidrRange_ = s;
-              break;
-            }
-          case 34:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                secondaryIpRanges_ =
-                    new java.util.ArrayList<
-                        com.google.container.v1.UsableSubnetworkSecondaryRange>();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              secondaryIpRanges_.add(
-                  input.readMessage(
-                      com.google.container.v1.UsableSubnetworkSecondaryRange.parser(),
-                      extensionRegistry));
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              statusMessage_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        secondaryIpRanges_ = java.util.Collections.unmodifiableList(secondaryIpRanges_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_UsableSubnetwork_descriptor;
@@ -468,7 +383,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(statusMessage_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, statusMessage_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -493,7 +408,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(statusMessage_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, statusMessage_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -513,7 +428,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getIpCidrRange().equals(other.getIpCidrRange())) return false;
     if (!getSecondaryIpRangesList().equals(other.getSecondaryIpRangesList())) return false;
     if (!getStatusMessage().equals(other.getStatusMessage())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -536,7 +451,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + STATUS_MESSAGE_FIELD_NUMBER;
     hash = (53 * hash) + getStatusMessage().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -666,19 +581,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.UsableSubnetwork.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getSecondaryIpRangesFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -692,10 +598,11 @@ public Builder clear() {
 
       if (secondaryIpRangesBuilder_ == null) {
         secondaryIpRanges_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        secondaryIpRanges_ = null;
         secondaryIpRangesBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       statusMessage_ = "";
 
       return this;
@@ -831,7 +738,7 @@ public Builder mergeFrom(com.google.container.v1.UsableSubnetwork other) {
         statusMessage_ = other.statusMessage_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -846,17 +753,69 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.UsableSubnetwork parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                subnetwork_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                network_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                ipCidrRange_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                com.google.container.v1.UsableSubnetworkSecondaryRange m =
+                    input.readMessage(
+                        com.google.container.v1.UsableSubnetworkSecondaryRange.parser(),
+                        extensionRegistry);
+                if (secondaryIpRangesBuilder_ == null) {
+                  ensureSecondaryIpRangesIsMutable();
+                  secondaryIpRanges_.add(m);
+                } else {
+                  secondaryIpRangesBuilder_.addMessage(m);
+                }
+                break;
+              } // case 34
+            case 42:
+              {
+                statusMessage_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.UsableSubnetwork) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1726,7 +1685,18 @@ public UsableSubnetwork parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UsableSubnetwork(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UsableSubnetworkSecondaryRange.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UsableSubnetworkSecondaryRange.java
index fe3be25f..f8e42cf4 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UsableSubnetworkSecondaryRange.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/UsableSubnetworkSecondaryRange.java
@@ -55,66 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UsableSubnetworkSecondaryRange(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              rangeName_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              ipCidrRange_ = s;
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              status_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_UsableSubnetworkSecondaryRange_descriptor;
@@ -503,7 +443,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         != com.google.container.v1.UsableSubnetworkSecondaryRange.Status.UNKNOWN.getNumber()) {
       output.writeEnum(3, status_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -522,7 +462,7 @@ public int getSerializedSize() {
         != com.google.container.v1.UsableSubnetworkSecondaryRange.Status.UNKNOWN.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, status_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -541,7 +481,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getRangeName().equals(other.getRangeName())) return false;
     if (!getIpCidrRange().equals(other.getIpCidrRange())) return false;
     if (status_ != other.status_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -558,7 +498,7 @@ public int hashCode() {
     hash = (53 * hash) + getIpCidrRange().hashCode();
     hash = (37 * hash) + STATUS_FIELD_NUMBER;
     hash = (53 * hash) + status_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -688,17 +628,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.UsableSubnetworkSecondaryRange.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -801,7 +734,7 @@ public Builder mergeFrom(com.google.container.v1.UsableSubnetworkSecondaryRange
       if (other.status_ != 0) {
         setStatusValue(other.getStatusValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -816,18 +749,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.UsableSubnetworkSecondaryRange parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                rangeName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                ipCidrRange_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                status_ = input.readEnum();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1.UsableSubnetworkSecondaryRange) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1173,7 +1137,18 @@ public UsableSubnetworkSecondaryRange parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UsableSubnetworkSecondaryRange(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/VerticalPodAutoscaling.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/VerticalPodAutoscaling.java
index 2e3dd663..4bd6b6ea 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/VerticalPodAutoscaling.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/VerticalPodAutoscaling.java
@@ -52,50 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private VerticalPodAutoscaling(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_VerticalPodAutoscaling_descriptor;
@@ -146,7 +102,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -158,7 +114,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -175,7 +131,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.VerticalPodAutoscaling) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -188,7 +144,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -319,17 +275,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.VerticalPodAutoscaling.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -417,7 +366,7 @@ public Builder mergeFrom(com.google.container.v1.VerticalPodAutoscaling other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -432,17 +381,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.VerticalPodAutoscaling parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.VerticalPodAutoscaling) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -530,7 +499,18 @@ public VerticalPodAutoscaling parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new VerticalPodAutoscaling(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/VirtualNIC.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/VirtualNIC.java
index b2687231..608617fa 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/VirtualNIC.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/VirtualNIC.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private VirtualNIC(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_VirtualNIC_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -172,7 +128,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1.VirtualNIC other = (com.google.container.v1.VirtualNIC) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -185,7 +141,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -313,17 +269,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.VirtualNIC.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -410,7 +359,7 @@ public Builder mergeFrom(com.google.container.v1.VirtualNIC other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -425,17 +374,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.VirtualNIC parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.VirtualNIC) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -523,7 +492,18 @@ public VirtualNIC parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new VirtualNIC(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/WorkloadIdentityConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/WorkloadIdentityConfig.java
index 27c9a43c..2abb91f7 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/WorkloadIdentityConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/WorkloadIdentityConfig.java
@@ -53,52 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private WorkloadIdentityConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              workloadPool_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_WorkloadIdentityConfig_descriptor;
@@ -180,7 +134,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(workloadPool_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, workloadPool_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -192,7 +146,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(workloadPool_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, workloadPool_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -209,7 +163,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.WorkloadIdentityConfig) obj;
 
     if (!getWorkloadPool().equals(other.getWorkloadPool())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -222,7 +176,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + WORKLOAD_POOL_FIELD_NUMBER;
     hash = (53 * hash) + getWorkloadPool().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -352,17 +306,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.WorkloadIdentityConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -451,7 +398,7 @@ public Builder mergeFrom(com.google.container.v1.WorkloadIdentityConfig other) {
         workloadPool_ = other.workloadPool_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -466,17 +413,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.WorkloadIdentityConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 18:
+              {
+                workloadPool_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.WorkloadIdentityConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -618,7 +585,18 @@ public WorkloadIdentityConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new WorkloadIdentityConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/WorkloadMetadataConfig.java b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/WorkloadMetadataConfig.java
index 799f7531..4d280d99 100644
--- a/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/WorkloadMetadataConfig.java
+++ b/proto-google-cloud-container-v1/src/main/java/com/google/container/v1/WorkloadMetadataConfig.java
@@ -53,52 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private WorkloadMetadataConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              mode_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1.ClusterServiceProto
         .internal_static_google_container_v1_WorkloadMetadataConfig_descriptor;
@@ -337,7 +291,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (mode_ != com.google.container.v1.WorkloadMetadataConfig.Mode.MODE_UNSPECIFIED.getNumber()) {
       output.writeEnum(2, mode_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -349,7 +303,7 @@ public int getSerializedSize() {
     if (mode_ != com.google.container.v1.WorkloadMetadataConfig.Mode.MODE_UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, mode_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -366,7 +320,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1.WorkloadMetadataConfig) obj;
 
     if (mode_ != other.mode_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -379,7 +333,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + MODE_FIELD_NUMBER;
     hash = (53 * hash) + mode_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -509,17 +463,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1.WorkloadMetadataConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -607,7 +554,7 @@ public Builder mergeFrom(com.google.container.v1.WorkloadMetadataConfig other) {
       if (other.mode_ != 0) {
         setModeValue(other.getModeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -622,17 +569,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1.WorkloadMetadataConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 16:
+              {
+                mode_ = input.readEnum();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1.WorkloadMetadataConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -766,7 +733,18 @@ public WorkloadMetadataConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new WorkloadMetadataConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1/src/main/proto/google/container/v1/cluster_service.proto b/proto-google-cloud-container-v1/src/main/proto/google/container/v1/cluster_service.proto
index 53a64980..5b71bb8d 100644
--- a/proto-google-cloud-container-v1/src/main/proto/google/container/v1/cluster_service.proto
+++ b/proto-google-cloud-container-v1/src/main/proto/google/container/v1/cluster_service.proto
@@ -740,6 +740,9 @@ message NodeConfig {
   // Confidential nodes config.
   // All the nodes in the node pool will be Confidential VM once enabled.
   ConfidentialNodes confidential_nodes = 35;
+
+  // Logging configuration.
+  NodePoolLoggingConfig logging_config = 38;
 }
 
 // Specifies options for controlling advanced machine features.
@@ -876,8 +879,9 @@ message ReservationAffinity {
   Type consume_reservation_type = 1;
 
   // Corresponds to the label key of a reservation resource. To target a
-  // SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-  // the key and specify the name of your reservation as its value.
+  // SPECIFIC_RESERVATION by name, specify
+  // "compute.googleapis.com/reservation-name" as the key and specify the name
+  // of your reservation as its value.
   string key = 2;
 
   // Corresponds to the label value(s) of reservation resource(s).
@@ -1708,6 +1712,9 @@ message NodePoolDefaults {
 message NodeConfigDefaults {
   // GCFS (Google Container File System, also known as Riptide) options.
   GcfsConfig gcfs_config = 1;
+
+  // Logging configuration for node pools.
+  NodePoolLoggingConfig logging_config = 3;
 }
 
 // ClusterUpdate describes an update to the cluster. Exactly one update can
@@ -1871,6 +1878,9 @@ message ClusterUpdate {
   // The desired network tags that apply to all auto-provisioned node pools
   // in autopilot clusters and node auto-provisioning enabled clusters.
   NetworkTags desired_node_pool_auto_config_network_tags = 110;
+
+  // The desired node pool logging configuration defaults for the cluster.
+  NodePoolLoggingConfig desired_node_pool_logging_config = 116;
 }
 
 // This operation resource represents operations that may have happened or are
@@ -2205,6 +2215,9 @@ message UpdateNodePoolRequest {
 
   // Enable or disable gvnic on the node pool.
   VirtualNIC gvnic = 29;
+
+  // Logging configuration.
+  NodePoolLoggingConfig logging_config = 32;
 }
 
 // SetNodePoolAutoscalingRequest sets the autoscaler settings of a node pool.
@@ -3305,7 +3318,7 @@ message AutoprovisioningNodePoolDefaults {
   // minCpuPlatform: Intel Haswell or
   // minCpuPlatform: Intel Sandy Bridge. For more
   // information, read [how to specify min CPU
-  // platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+  // platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
   // This field is deprecated, min_cpu_platform should be specified using
   // https://cloud.google.com/requested-min-cpu-platform label selector on the
   // pod.
@@ -4286,6 +4299,30 @@ message MonitoringConfig {
   ManagedPrometheusConfig managed_prometheus_config = 2;
 }
 
+// NodePoolLoggingConfig specifies logging configuration for nodepools.
+message NodePoolLoggingConfig {
+  // Logging variant configuration.
+  LoggingVariantConfig variant_config = 1;
+}
+
+// LoggingVariantConfig specifies the behaviour of the logging component.
+message LoggingVariantConfig {
+  // Logging component variants.
+  enum Variant {
+    // Default value. This shouldn't be used.
+    VARIANT_UNSPECIFIED = 0;
+
+    // default logging variant.
+    DEFAULT = 1;
+
+    // maximum logging throughput variant.
+    MAX_THROUGHPUT = 2;
+  }
+
+  // Logging variant deployed on nodes.
+  Variant variant = 1;
+}
+
 // MonitoringComponentConfig is cluster monitoring component configuration.
 message MonitoringComponentConfig {
   // GKE components exposing metrics
diff --git a/proto-google-cloud-container-v1beta1/pom.xml b/proto-google-cloud-container-v1beta1/pom.xml
index 6de77b66..7883a1c7 100644
--- a/proto-google-cloud-container-v1beta1/pom.xml
+++ b/proto-google-cloud-container-v1beta1/pom.xml
@@ -4,13 +4,13 @@
   4.0.0
   com.google.api.grpc
   proto-google-cloud-container-v1beta1
-  2.5.2
+  2.6.0
   proto-google-cloud-container-v1beta1
   Proto library for google-cloud-container
   
     com.google.cloud
     google-cloud-container-parent
-    2.5.2
+    2.6.0
   
   
     
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AcceleratorConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AcceleratorConfig.java
index 61c4a018..664f66e4 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AcceleratorConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AcceleratorConfig.java
@@ -53,86 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AcceleratorConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              acceleratorCount_ = input.readInt64();
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              acceleratorType_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              gpuPartitionSize_ = s;
-              break;
-            }
-          case 32:
-            {
-              maxTimeSharedClientsPerGpu_ = input.readInt64();
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1beta1.GPUSharingConfig.Builder subBuilder = null;
-              if (((bitField0_ & 0x00000001) != 0)) {
-                subBuilder = gpuSharingConfig_.toBuilder();
-              }
-              gpuSharingConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.GPUSharingConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gpuSharingConfig_);
-                gpuSharingConfig_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000001;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_AcceleratorConfig_descriptor;
@@ -283,7 +203,7 @@ public com.google.protobuf.ByteString getGpuPartitionSizeBytes() {
    * int64 max_time_shared_clients_per_gpu = 4 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AcceleratorConfig.max_time_shared_clients_per_gpu is
-   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=4106
+   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=4119
    * @return The maxTimeSharedClientsPerGpu.
    */
   @java.lang.Override
@@ -371,7 +291,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeMessage(5, getGpuSharingConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -396,7 +316,7 @@ public int getSerializedSize() {
     if (((bitField0_ & 0x00000001) != 0)) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getGpuSharingConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -420,7 +340,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasGpuSharingConfig()) {
       if (!getGpuSharingConfig().equals(other.getGpuSharingConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -443,7 +363,7 @@ public int hashCode() {
       hash = (37 * hash) + GPU_SHARING_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getGpuSharingConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -712,7 +632,7 @@ public Builder mergeFrom(com.google.container.v1beta1.AcceleratorConfig other) {
       if (other.hasGpuSharingConfig()) {
         mergeGpuSharingConfig(other.getGpuSharingConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -727,17 +647,62 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.AcceleratorConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                acceleratorCount_ = input.readInt64();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                acceleratorType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                gpuPartitionSize_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 32:
+              {
+                maxTimeSharedClientsPerGpu_ = input.readInt64();
+
+                break;
+              } // case 32
+            case 42:
+              {
+                input.readMessage(
+                    getGpuSharingConfigFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.AcceleratorConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1033,7 +998,7 @@ public Builder setGpuPartitionSizeBytes(com.google.protobuf.ByteString value) {
      * int64 max_time_shared_clients_per_gpu = 4 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AcceleratorConfig.max_time_shared_clients_per_gpu is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=4106
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=4119
      * @return The maxTimeSharedClientsPerGpu.
      */
     @java.lang.Override
@@ -1051,7 +1016,7 @@ public long getMaxTimeSharedClientsPerGpu() {
      * int64 max_time_shared_clients_per_gpu = 4 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AcceleratorConfig.max_time_shared_clients_per_gpu is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=4106
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=4119
      * @param value The maxTimeSharedClientsPerGpu to set.
      * @return This builder for chaining.
      */
@@ -1072,7 +1037,7 @@ public Builder setMaxTimeSharedClientsPerGpu(long value) {
      * int64 max_time_shared_clients_per_gpu = 4 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AcceleratorConfig.max_time_shared_clients_per_gpu is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=4106
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=4119
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1303,7 +1268,18 @@ public AcceleratorConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AcceleratorConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AcceleratorConfigOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AcceleratorConfigOrBuilder.java
index e569ae6f..781b15d0 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AcceleratorConfigOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AcceleratorConfigOrBuilder.java
@@ -102,7 +102,7 @@ public interface AcceleratorConfigOrBuilder
    * int64 max_time_shared_clients_per_gpu = 4 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AcceleratorConfig.max_time_shared_clients_per_gpu is
-   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=4106
+   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=4119
    * @return The maxTimeSharedClientsPerGpu.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AddonsConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AddonsConfig.java
index 9252de76..ef871bf8 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AddonsConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AddonsConfig.java
@@ -51,243 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AddonsConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.HttpLoadBalancing.Builder subBuilder = null;
-              if (httpLoadBalancing_ != null) {
-                subBuilder = httpLoadBalancing_.toBuilder();
-              }
-              httpLoadBalancing_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.HttpLoadBalancing.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(httpLoadBalancing_);
-                httpLoadBalancing_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 18:
-            {
-              com.google.container.v1beta1.HorizontalPodAutoscaling.Builder subBuilder = null;
-              if (horizontalPodAutoscaling_ != null) {
-                subBuilder = horizontalPodAutoscaling_.toBuilder();
-              }
-              horizontalPodAutoscaling_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.HorizontalPodAutoscaling.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(horizontalPodAutoscaling_);
-                horizontalPodAutoscaling_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1beta1.KubernetesDashboard.Builder subBuilder = null;
-              if (kubernetesDashboard_ != null) {
-                subBuilder = kubernetesDashboard_.toBuilder();
-              }
-              kubernetesDashboard_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.KubernetesDashboard.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(kubernetesDashboard_);
-                kubernetesDashboard_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1beta1.NetworkPolicyConfig.Builder subBuilder = null;
-              if (networkPolicyConfig_ != null) {
-                subBuilder = networkPolicyConfig_.toBuilder();
-              }
-              networkPolicyConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NetworkPolicyConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkPolicyConfig_);
-                networkPolicyConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1beta1.IstioConfig.Builder subBuilder = null;
-              if (istioConfig_ != null) {
-                subBuilder = istioConfig_.toBuilder();
-              }
-              istioConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.IstioConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(istioConfig_);
-                istioConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 58:
-            {
-              com.google.container.v1beta1.CloudRunConfig.Builder subBuilder = null;
-              if (cloudRunConfig_ != null) {
-                subBuilder = cloudRunConfig_.toBuilder();
-              }
-              cloudRunConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.CloudRunConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(cloudRunConfig_);
-                cloudRunConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 66:
-            {
-              com.google.container.v1beta1.DnsCacheConfig.Builder subBuilder = null;
-              if (dnsCacheConfig_ != null) {
-                subBuilder = dnsCacheConfig_.toBuilder();
-              }
-              dnsCacheConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.DnsCacheConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(dnsCacheConfig_);
-                dnsCacheConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 82:
-            {
-              com.google.container.v1beta1.ConfigConnectorConfig.Builder subBuilder = null;
-              if (configConnectorConfig_ != null) {
-                subBuilder = configConnectorConfig_.toBuilder();
-              }
-              configConnectorConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ConfigConnectorConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(configConnectorConfig_);
-                configConnectorConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 90:
-            {
-              com.google.container.v1beta1.GcePersistentDiskCsiDriverConfig.Builder subBuilder =
-                  null;
-              if (gcePersistentDiskCsiDriverConfig_ != null) {
-                subBuilder = gcePersistentDiskCsiDriverConfig_.toBuilder();
-              }
-              gcePersistentDiskCsiDriverConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.GcePersistentDiskCsiDriverConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gcePersistentDiskCsiDriverConfig_);
-                gcePersistentDiskCsiDriverConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 98:
-            {
-              com.google.container.v1beta1.KalmConfig.Builder subBuilder = null;
-              if (kalmConfig_ != null) {
-                subBuilder = kalmConfig_.toBuilder();
-              }
-              kalmConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.KalmConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(kalmConfig_);
-                kalmConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 114:
-            {
-              com.google.container.v1beta1.GcpFilestoreCsiDriverConfig.Builder subBuilder = null;
-              if (gcpFilestoreCsiDriverConfig_ != null) {
-                subBuilder = gcpFilestoreCsiDriverConfig_.toBuilder();
-              }
-              gcpFilestoreCsiDriverConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.GcpFilestoreCsiDriverConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gcpFilestoreCsiDriverConfig_);
-                gcpFilestoreCsiDriverConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 130:
-            {
-              com.google.container.v1beta1.GkeBackupAgentConfig.Builder subBuilder = null;
-              if (gkeBackupAgentConfig_ != null) {
-                subBuilder = gkeBackupAgentConfig_.toBuilder();
-              }
-              gkeBackupAgentConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.GkeBackupAgentConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gkeBackupAgentConfig_);
-                gkeBackupAgentConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_AddonsConfig_descriptor;
@@ -427,7 +190,7 @@ public com.google.container.v1beta1.HorizontalPodAutoscaling getHorizontalPodAut
    * 
    *
    * @deprecated google.container.v1beta1.AddonsConfig.kubernetes_dashboard is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1031
+   *     google/container/v1beta1/cluster_service.proto;l=1035
    * @return Whether the kubernetesDashboard field is set.
    */
   @java.lang.Override
@@ -451,7 +214,7 @@ public boolean hasKubernetesDashboard() {
    * 
    *
    * @deprecated google.container.v1beta1.AddonsConfig.kubernetes_dashboard is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1031
+   *     google/container/v1beta1/cluster_service.proto;l=1035
    * @return The kubernetesDashboard.
    */
   @java.lang.Override
@@ -551,7 +314,7 @@ public com.google.container.v1beta1.NetworkPolicyConfig getNetworkPolicyConfig()
    * .google.container.v1beta1.IstioConfig istio_config = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AddonsConfig.istio_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1040
+   *     google/container/v1beta1/cluster_service.proto;l=1044
    * @return Whether the istioConfig field is set.
    */
   @java.lang.Override
@@ -570,7 +333,7 @@ public boolean hasIstioConfig() {
    * .google.container.v1beta1.IstioConfig istio_config = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AddonsConfig.istio_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1040
+   *     google/container/v1beta1/cluster_service.proto;l=1044
    * @return The istioConfig.
    */
   @java.lang.Override
@@ -820,7 +583,7 @@ public boolean hasGcePersistentDiskCsiDriverConfig() {
    * .google.container.v1beta1.KalmConfig kalm_config = 12 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AddonsConfig.kalm_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1059
+   *     google/container/v1beta1/cluster_service.proto;l=1063
    * @return Whether the kalmConfig field is set.
    */
   @java.lang.Override
@@ -839,7 +602,7 @@ public boolean hasKalmConfig() {
    * .google.container.v1beta1.KalmConfig kalm_config = 12 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AddonsConfig.kalm_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1059
+   *     google/container/v1beta1/cluster_service.proto;l=1063
    * @return The kalmConfig.
    */
   @java.lang.Override
@@ -1019,7 +782,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (gkeBackupAgentConfig_ != null) {
       output.writeMessage(16, getGkeBackupAgentConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1072,7 +835,7 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(16, getGkeBackupAgentConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1139,7 +902,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasGkeBackupAgentConfig()) {
       if (!getGkeBackupAgentConfig().equals(other.getGkeBackupAgentConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1198,7 +961,7 @@ public int hashCode() {
       hash = (37 * hash) + GKE_BACKUP_AGENT_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getGkeBackupAgentConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1328,17 +1091,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.AddonsConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1588,7 +1344,7 @@ public Builder mergeFrom(com.google.container.v1beta1.AddonsConfig other) {
       if (other.hasGkeBackupAgentConfig()) {
         mergeGkeBackupAgentConfig(other.getGkeBackupAgentConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1603,17 +1359,112 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.AddonsConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getHttpLoadBalancingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(
+                    getHorizontalPodAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(
+                    getKubernetesDashboardFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(
+                    getNetworkPolicyConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                input.readMessage(getIstioConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 58:
+              {
+                input.readMessage(getCloudRunConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 58
+            case 66:
+              {
+                input.readMessage(getDnsCacheConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 66
+            case 82:
+              {
+                input.readMessage(
+                    getConfigConnectorConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 82
+            case 90:
+              {
+                input.readMessage(
+                    getGcePersistentDiskCsiDriverConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 90
+            case 98:
+              {
+                input.readMessage(getKalmConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 98
+            case 114:
+              {
+                input.readMessage(
+                    getGcpFilestoreCsiDriverConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 114
+            case 130:
+              {
+                input.readMessage(
+                    getGkeBackupAgentConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 130
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.AddonsConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2052,7 +1903,7 @@ public Builder clearHorizontalPodAutoscaling() {
      * 
      *
      * @deprecated google.container.v1beta1.AddonsConfig.kubernetes_dashboard is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1031
+     *     google/container/v1beta1/cluster_service.proto;l=1035
      * @return Whether the kubernetesDashboard field is set.
      */
     @java.lang.Deprecated
@@ -2075,7 +1926,7 @@ public boolean hasKubernetesDashboard() {
      * 
      *
      * @deprecated google.container.v1beta1.AddonsConfig.kubernetes_dashboard is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1031
+     *     google/container/v1beta1/cluster_service.proto;l=1035
      * @return The kubernetesDashboard.
      */
     @java.lang.Deprecated
@@ -2509,7 +2360,7 @@ public Builder clearNetworkPolicyConfig() {
      * .google.container.v1beta1.IstioConfig istio_config = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AddonsConfig.istio_config is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1040
+     *     google/container/v1beta1/cluster_service.proto;l=1044
      * @return Whether the istioConfig field is set.
      */
     @java.lang.Deprecated
@@ -2527,7 +2378,7 @@ public boolean hasIstioConfig() {
      * .google.container.v1beta1.IstioConfig istio_config = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AddonsConfig.istio_config is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1040
+     *     google/container/v1beta1/cluster_service.proto;l=1044
      * @return The istioConfig.
      */
     @java.lang.Deprecated
@@ -3517,7 +3368,7 @@ public Builder clearGcePersistentDiskCsiDriverConfig() {
      * .google.container.v1beta1.KalmConfig kalm_config = 12 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AddonsConfig.kalm_config is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1059
+     *     google/container/v1beta1/cluster_service.proto;l=1063
      * @return Whether the kalmConfig field is set.
      */
     @java.lang.Deprecated
@@ -3535,7 +3386,7 @@ public boolean hasKalmConfig() {
      * .google.container.v1beta1.KalmConfig kalm_config = 12 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AddonsConfig.kalm_config is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1059
+     *     google/container/v1beta1/cluster_service.proto;l=1063
      * @return The kalmConfig.
      */
     @java.lang.Deprecated
@@ -4138,7 +3989,18 @@ public AddonsConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AddonsConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AddonsConfigOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AddonsConfigOrBuilder.java
index ed65d2dc..eae7d489 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AddonsConfigOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AddonsConfigOrBuilder.java
@@ -119,7 +119,7 @@ public interface AddonsConfigOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.AddonsConfig.kubernetes_dashboard is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1031
+   *     google/container/v1beta1/cluster_service.proto;l=1035
    * @return Whether the kubernetesDashboard field is set.
    */
   @java.lang.Deprecated
@@ -140,7 +140,7 @@ public interface AddonsConfigOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.AddonsConfig.kubernetes_dashboard is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1031
+   *     google/container/v1beta1/cluster_service.proto;l=1035
    * @return The kubernetesDashboard.
    */
   @java.lang.Deprecated
@@ -215,7 +215,7 @@ public interface AddonsConfigOrBuilder
    * .google.container.v1beta1.IstioConfig istio_config = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AddonsConfig.istio_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1040
+   *     google/container/v1beta1/cluster_service.proto;l=1044
    * @return Whether the istioConfig field is set.
    */
   @java.lang.Deprecated
@@ -231,7 +231,7 @@ public interface AddonsConfigOrBuilder
    * .google.container.v1beta1.IstioConfig istio_config = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AddonsConfig.istio_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1040
+   *     google/container/v1beta1/cluster_service.proto;l=1044
    * @return The istioConfig.
    */
   @java.lang.Deprecated
@@ -417,7 +417,7 @@ public interface AddonsConfigOrBuilder
    * .google.container.v1beta1.KalmConfig kalm_config = 12 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AddonsConfig.kalm_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1059
+   *     google/container/v1beta1/cluster_service.proto;l=1063
    * @return Whether the kalmConfig field is set.
    */
   @java.lang.Deprecated
@@ -433,7 +433,7 @@ public interface AddonsConfigOrBuilder
    * .google.container.v1beta1.KalmConfig kalm_config = 12 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AddonsConfig.kalm_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1059
+   *     google/container/v1beta1/cluster_service.proto;l=1063
    * @return The kalmConfig.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AdvancedMachineFeatures.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AdvancedMachineFeatures.java
index 13fd8adf..b773c0ee 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AdvancedMachineFeatures.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AdvancedMachineFeatures.java
@@ -50,52 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AdvancedMachineFeatures(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              bitField0_ |= 0x00000001;
-              threadsPerCore_ = input.readInt64();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_AdvancedMachineFeatures_descriptor;
@@ -166,7 +120,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeInt64(1, threadsPerCore_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -178,7 +132,7 @@ public int getSerializedSize() {
     if (((bitField0_ & 0x00000001) != 0)) {
       size += com.google.protobuf.CodedOutputStream.computeInt64Size(1, threadsPerCore_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -198,7 +152,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasThreadsPerCore()) {
       if (getThreadsPerCore() != other.getThreadsPerCore()) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -213,7 +167,7 @@ public int hashCode() {
       hash = (37 * hash) + THREADS_PER_CORE_FIELD_NUMBER;
       hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getThreadsPerCore());
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -342,17 +296,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.AdvancedMachineFeatures.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -447,7 +394,7 @@ public Builder mergeFrom(com.google.container.v1beta1.AdvancedMachineFeatures ot
       if (other.hasThreadsPerCore()) {
         setThreadsPerCore(other.getThreadsPerCore());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -462,18 +409,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.AdvancedMachineFeatures parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                threadsPerCore_ = input.readInt64();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.AdvancedMachineFeatures) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -586,7 +552,18 @@ public AdvancedMachineFeatures parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AdvancedMachineFeatures(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AuthenticatorGroupsConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AuthenticatorGroupsConfig.java
index 111f4f73..1042d6e7 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AuthenticatorGroupsConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AuthenticatorGroupsConfig.java
@@ -52,57 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AuthenticatorGroupsConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              securityGroup_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_AuthenticatorGroupsConfig_descriptor;
@@ -208,7 +157,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(securityGroup_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, securityGroup_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -223,7 +172,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(securityGroup_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, securityGroup_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -241,7 +190,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getEnabled() != other.getEnabled()) return false;
     if (!getSecurityGroup().equals(other.getSecurityGroup())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -256,7 +205,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
     hash = (37 * hash) + SECURITY_GROUP_FIELD_NUMBER;
     hash = (53 * hash) + getSecurityGroup().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -386,17 +335,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.AuthenticatorGroupsConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -492,7 +434,7 @@ public Builder mergeFrom(com.google.container.v1beta1.AuthenticatorGroupsConfig
         securityGroup_ = other.securityGroup_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -507,18 +449,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.AuthenticatorGroupsConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                securityGroup_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.AuthenticatorGroupsConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -720,7 +687,18 @@ public AuthenticatorGroupsConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AuthenticatorGroupsConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoUpgradeOptions.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoUpgradeOptions.java
index 673d03df..bb44a066 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoUpgradeOptions.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoUpgradeOptions.java
@@ -54,59 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AutoUpgradeOptions(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              autoUpgradeStartTime_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              description_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_AutoUpgradeOptions_descriptor;
@@ -246,7 +193,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, description_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -261,7 +208,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, description_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -279,7 +226,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getAutoUpgradeStartTime().equals(other.getAutoUpgradeStartTime())) return false;
     if (!getDescription().equals(other.getDescription())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -294,7 +241,7 @@ public int hashCode() {
     hash = (53 * hash) + getAutoUpgradeStartTime().hashCode();
     hash = (37 * hash) + DESCRIPTION_FIELD_NUMBER;
     hash = (53 * hash) + getDescription().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -424,17 +371,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.AutoUpgradeOptions.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -531,7 +471,7 @@ public Builder mergeFrom(com.google.container.v1beta1.AutoUpgradeOptions other)
         description_ = other.description_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -546,17 +486,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.AutoUpgradeOptions parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                autoUpgradeStartTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                description_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.AutoUpgradeOptions) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -819,7 +785,18 @@ public AutoUpgradeOptions parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AutoUpgradeOptions(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Autopilot.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Autopilot.java
index 12248830..bf3172a4 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Autopilot.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Autopilot.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private Autopilot(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_Autopilot_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -172,7 +128,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1beta1.Autopilot other = (com.google.container.v1beta1.Autopilot) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -185,7 +141,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -314,17 +270,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.Autopilot.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -412,7 +361,7 @@ public Builder mergeFrom(com.google.container.v1beta1.Autopilot other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -427,17 +376,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.Autopilot parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.Autopilot) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -525,7 +494,18 @@ public Autopilot parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new Autopilot(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoprovisioningNodePoolDefaults.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoprovisioningNodePoolDefaults.java
index 46692cf0..a565b459 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoprovisioningNodePoolDefaults.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoprovisioningNodePoolDefaults.java
@@ -59,149 +59,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private AutoprovisioningNodePoolDefaults(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                oauthScopes_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              oauthScopes_.add(s);
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              serviceAccount_ = s;
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1beta1.NodePool.UpgradeSettings.Builder subBuilder = null;
-              if (upgradeSettings_ != null) {
-                subBuilder = upgradeSettings_.toBuilder();
-              }
-              upgradeSettings_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePool.UpgradeSettings.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(upgradeSettings_);
-                upgradeSettings_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1beta1.NodeManagement.Builder subBuilder = null;
-              if (management_ != null) {
-                subBuilder = management_.toBuilder();
-              }
-              management_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeManagement.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(management_);
-                management_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              minCpuPlatform_ = s;
-              break;
-            }
-          case 48:
-            {
-              diskSizeGb_ = input.readInt32();
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              diskType_ = s;
-              break;
-            }
-          case 66:
-            {
-              com.google.container.v1beta1.ShieldedInstanceConfig.Builder subBuilder = null;
-              if (shieldedInstanceConfig_ != null) {
-                subBuilder = shieldedInstanceConfig_.toBuilder();
-              }
-              shieldedInstanceConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ShieldedInstanceConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(shieldedInstanceConfig_);
-                shieldedInstanceConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              bootDiskKmsKey_ = s;
-              break;
-            }
-          case 82:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              imageType_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        oauthScopes_ = oauthScopes_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_AutoprovisioningNodePoolDefaults_descriptor;
@@ -484,7 +341,7 @@ public com.google.container.v1beta1.NodeManagementOrBuilder getManagementOrBuild
    * minCpuPlatform: Intel Haswell or
    * minCpuPlatform: Intel Sandy Bridge. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * This field is deprecated, min_cpu_platform should be specified using
    * https://cloud.google.com/requested-min-cpu-platform label selector on the
    * pod.
@@ -495,7 +352,7 @@ public com.google.container.v1beta1.NodeManagementOrBuilder getManagementOrBuild
    * string min_cpu_platform = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3856
+   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3869
    * @return The minCpuPlatform.
    */
   @java.lang.Override
@@ -521,7 +378,7 @@ public java.lang.String getMinCpuPlatform() {
    * minCpuPlatform: Intel Haswell or
    * minCpuPlatform: Intel Sandy Bridge. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * This field is deprecated, min_cpu_platform should be specified using
    * https://cloud.google.com/requested-min-cpu-platform label selector on the
    * pod.
@@ -532,7 +389,7 @@ public java.lang.String getMinCpuPlatform() {
    * string min_cpu_platform = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3856
+   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3869
    * @return The bytes for minCpuPlatform.
    */
   @java.lang.Override
@@ -823,7 +680,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageType_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 10, imageType_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -868,7 +725,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(imageType_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(10, imageType_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -903,7 +760,7 @@ public boolean equals(final java.lang.Object obj) {
     }
     if (!getBootDiskKmsKey().equals(other.getBootDiskKmsKey())) return false;
     if (!getImageType().equals(other.getImageType())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -942,7 +799,7 @@ public int hashCode() {
     hash = (53 * hash) + getBootDiskKmsKey().hashCode();
     hash = (37 * hash) + IMAGE_TYPE_FIELD_NUMBER;
     hash = (53 * hash) + getImageType().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1073,17 +930,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.AutoprovisioningNodePoolDefaults.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1269,7 +1119,7 @@ public Builder mergeFrom(com.google.container.v1beta1.AutoprovisioningNodePoolDe
         imageType_ = other.imageType_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1284,19 +1134,93 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.AutoprovisioningNodePoolDefaults parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureOauthScopesIsMutable();
+                oauthScopes_.add(s);
+                break;
+              } // case 10
+            case 18:
+              {
+                serviceAccount_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(getUpgradeSettingsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getManagementFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                minCpuPlatform_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 48:
+              {
+                diskSizeGb_ = input.readInt32();
+
+                break;
+              } // case 48
+            case 58:
+              {
+                diskType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                input.readMessage(
+                    getShieldedInstanceConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 66
+            case 74:
+              {
+                bootDiskKmsKey_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 82:
+              {
+                imageType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 82
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.AutoprovisioningNodePoolDefaults)
-                e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2071,7 +1995,7 @@ public com.google.container.v1beta1.NodeManagementOrBuilder getManagementOrBuild
      * minCpuPlatform: Intel Haswell or
      * minCpuPlatform: Intel Sandy Bridge. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * This field is deprecated, min_cpu_platform should be specified using
      * https://cloud.google.com/requested-min-cpu-platform label selector on the
      * pod.
@@ -2082,7 +2006,7 @@ public com.google.container.v1beta1.NodeManagementOrBuilder getManagementOrBuild
      * string min_cpu_platform = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3856
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3869
      * @return The minCpuPlatform.
      */
     @java.lang.Deprecated
@@ -2107,7 +2031,7 @@ public java.lang.String getMinCpuPlatform() {
      * minCpuPlatform: Intel Haswell or
      * minCpuPlatform: Intel Sandy Bridge. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * This field is deprecated, min_cpu_platform should be specified using
      * https://cloud.google.com/requested-min-cpu-platform label selector on the
      * pod.
@@ -2118,7 +2042,7 @@ public java.lang.String getMinCpuPlatform() {
      * string min_cpu_platform = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3856
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3869
      * @return The bytes for minCpuPlatform.
      */
     @java.lang.Deprecated
@@ -2143,7 +2067,7 @@ public com.google.protobuf.ByteString getMinCpuPlatformBytes() {
      * minCpuPlatform: Intel Haswell or
      * minCpuPlatform: Intel Sandy Bridge. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * This field is deprecated, min_cpu_platform should be specified using
      * https://cloud.google.com/requested-min-cpu-platform label selector on the
      * pod.
@@ -2154,7 +2078,7 @@ public com.google.protobuf.ByteString getMinCpuPlatformBytes() {
      * string min_cpu_platform = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3856
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3869
      * @param value The minCpuPlatform to set.
      * @return This builder for chaining.
      */
@@ -2178,7 +2102,7 @@ public Builder setMinCpuPlatform(java.lang.String value) {
      * minCpuPlatform: Intel Haswell or
      * minCpuPlatform: Intel Sandy Bridge. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * This field is deprecated, min_cpu_platform should be specified using
      * https://cloud.google.com/requested-min-cpu-platform label selector on the
      * pod.
@@ -2189,7 +2113,7 @@ public Builder setMinCpuPlatform(java.lang.String value) {
      * string min_cpu_platform = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3856
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3869
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2209,7 +2133,7 @@ public Builder clearMinCpuPlatform() {
      * minCpuPlatform: Intel Haswell or
      * minCpuPlatform: Intel Sandy Bridge. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * This field is deprecated, min_cpu_platform should be specified using
      * https://cloud.google.com/requested-min-cpu-platform label selector on the
      * pod.
@@ -2220,7 +2144,7 @@ public Builder clearMinCpuPlatform() {
      * string min_cpu_platform = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3856
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3869
      * @param value The bytes for minCpuPlatform to set.
      * @return This builder for chaining.
      */
@@ -2871,7 +2795,18 @@ public AutoprovisioningNodePoolDefaults parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new AutoprovisioningNodePoolDefaults(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoprovisioningNodePoolDefaultsOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoprovisioningNodePoolDefaultsOrBuilder.java
index 8dff7a35..cb30828a 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoprovisioningNodePoolDefaultsOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/AutoprovisioningNodePoolDefaultsOrBuilder.java
@@ -227,7 +227,7 @@ public interface AutoprovisioningNodePoolDefaultsOrBuilder
    * minCpuPlatform: Intel Haswell or
    * minCpuPlatform: Intel Sandy Bridge. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * This field is deprecated, min_cpu_platform should be specified using
    * https://cloud.google.com/requested-min-cpu-platform label selector on the
    * pod.
@@ -238,7 +238,7 @@ public interface AutoprovisioningNodePoolDefaultsOrBuilder
    * string min_cpu_platform = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3856
+   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3869
    * @return The minCpuPlatform.
    */
   @java.lang.Deprecated
@@ -253,7 +253,7 @@ public interface AutoprovisioningNodePoolDefaultsOrBuilder
    * minCpuPlatform: Intel Haswell or
    * minCpuPlatform: Intel Sandy Bridge. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * This field is deprecated, min_cpu_platform should be specified using
    * https://cloud.google.com/requested-min-cpu-platform label selector on the
    * pod.
@@ -264,7 +264,7 @@ public interface AutoprovisioningNodePoolDefaultsOrBuilder
    * string min_cpu_platform = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.AutoprovisioningNodePoolDefaults.min_cpu_platform is
-   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3856
+   *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3869
    * @return The bytes for minCpuPlatform.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BinaryAuthorization.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BinaryAuthorization.java
index bd2072df..753270f6 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BinaryAuthorization.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BinaryAuthorization.java
@@ -52,57 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private BinaryAuthorization(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              evaluationMode_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_BinaryAuthorization_descriptor;
@@ -293,7 +242,7 @@ private EvaluationMode(int value) {
    * bool enabled = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.BinaryAuthorization.enabled is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1451
+   *     google/container/v1beta1/cluster_service.proto;l=1455
    * @return The enabled.
    */
   @java.lang.Override
@@ -367,7 +316,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
             .getNumber()) {
       output.writeEnum(2, evaluationMode_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -385,7 +334,7 @@ public int getSerializedSize() {
             .getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, evaluationMode_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -403,7 +352,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getEnabled() != other.getEnabled()) return false;
     if (evaluationMode_ != other.evaluationMode_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -418,7 +367,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
     hash = (37 * hash) + EVALUATION_MODE_FIELD_NUMBER;
     hash = (53 * hash) + evaluationMode_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -547,17 +496,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.BinaryAuthorization.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -652,7 +594,7 @@ public Builder mergeFrom(com.google.container.v1beta1.BinaryAuthorization other)
       if (other.evaluationMode_ != 0) {
         setEvaluationModeValue(other.getEvaluationModeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -667,17 +609,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.BinaryAuthorization parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                evaluationMode_ = input.readEnum();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.BinaryAuthorization) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -694,7 +662,7 @@ public Builder mergeFrom(
      * bool enabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.BinaryAuthorization.enabled is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1451
+     *     google/container/v1beta1/cluster_service.proto;l=1455
      * @return The enabled.
      */
     @java.lang.Override
@@ -714,7 +682,7 @@ public boolean getEnabled() {
      * bool enabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.BinaryAuthorization.enabled is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1451
+     *     google/container/v1beta1/cluster_service.proto;l=1455
      * @param value The enabled to set.
      * @return This builder for chaining.
      */
@@ -737,7 +705,7 @@ public Builder setEnabled(boolean value) {
      * bool enabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.BinaryAuthorization.enabled is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1451
+     *     google/container/v1beta1/cluster_service.proto;l=1455
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -889,7 +857,18 @@ public BinaryAuthorization parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new BinaryAuthorization(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BinaryAuthorizationOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BinaryAuthorizationOrBuilder.java
index 5aaafc5b..0edf3965 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BinaryAuthorizationOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BinaryAuthorizationOrBuilder.java
@@ -35,7 +35,7 @@ public interface BinaryAuthorizationOrBuilder
    * bool enabled = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.BinaryAuthorization.enabled is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1451
+   *     google/container/v1beta1/cluster_service.proto;l=1455
    * @return The enabled.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BlueGreenSettings.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BlueGreenSettings.java
index 19a9a485..c0ce1df8 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BlueGreenSettings.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/BlueGreenSettings.java
@@ -50,84 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private BlueGreenSettings(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.BlueGreenSettings.StandardRolloutPolicy.Builder
-                  subBuilder = null;
-              if (rolloutPolicyCase_ == 1) {
-                subBuilder =
-                    ((com.google.container.v1beta1.BlueGreenSettings.StandardRolloutPolicy)
-                            rolloutPolicy_)
-                        .toBuilder();
-              }
-              rolloutPolicy_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.BlueGreenSettings.StandardRolloutPolicy.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(
-                    (com.google.container.v1beta1.BlueGreenSettings.StandardRolloutPolicy)
-                        rolloutPolicy_);
-                rolloutPolicy_ = subBuilder.buildPartial();
-              }
-              rolloutPolicyCase_ = 1;
-              break;
-            }
-          case 18:
-            {
-              com.google.protobuf.Duration.Builder subBuilder = null;
-              if (((bitField0_ & 0x00000001) != 0)) {
-                subBuilder = nodePoolSoakDuration_.toBuilder();
-              }
-              nodePoolSoakDuration_ =
-                  input.readMessage(com.google.protobuf.Duration.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodePoolSoakDuration_);
-                nodePoolSoakDuration_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000001;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_BlueGreenSettings_descriptor;
@@ -270,73 +192,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private StandardRolloutPolicy(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 13:
-              {
-                updateBatchSize_ = input.readFloat();
-                updateBatchSizeCase_ = 1;
-                break;
-              }
-            case 16:
-              {
-                updateBatchSize_ = input.readInt32();
-                updateBatchSizeCase_ = 2;
-                break;
-              }
-            case 26:
-              {
-                com.google.protobuf.Duration.Builder subBuilder = null;
-                if (((bitField0_ & 0x00000001) != 0)) {
-                  subBuilder = batchSoakDuration_.toBuilder();
-                }
-                batchSoakDuration_ =
-                    input.readMessage(com.google.protobuf.Duration.parser(), extensionRegistry);
-                if (subBuilder != null) {
-                  subBuilder.mergeFrom(batchSoakDuration_);
-                  batchSoakDuration_ = subBuilder.buildPartial();
-                }
-                bitField0_ |= 0x00000001;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_BlueGreenSettings_StandardRolloutPolicy_descriptor;
@@ -545,7 +400,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (((bitField0_ & 0x00000001) != 0)) {
         output.writeMessage(3, getBatchSoakDuration());
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -567,7 +422,7 @@ public int getSerializedSize() {
       if (((bitField0_ & 0x00000001) != 0)) {
         size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getBatchSoakDuration());
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -599,7 +454,7 @@ public boolean equals(final java.lang.Object obj) {
         case 0:
         default:
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -626,7 +481,7 @@ public int hashCode() {
         case 0:
         default:
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -908,7 +763,7 @@ public Builder mergeFrom(
               break;
             }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -923,19 +778,50 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.BlueGreenSettings.StandardRolloutPolicy parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 13:
+                {
+                  updateBatchSize_ = input.readFloat();
+                  updateBatchSizeCase_ = 1;
+                  break;
+                } // case 13
+              case 16:
+                {
+                  updateBatchSize_ = input.readInt32();
+                  updateBatchSizeCase_ = 2;
+                  break;
+                } // case 16
+              case 26:
+                {
+                  input.readMessage(
+                      getBatchSoakDurationFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 26
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.BlueGreenSettings.StandardRolloutPolicy)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1318,7 +1204,19 @@ public StandardRolloutPolicy parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new StandardRolloutPolicy(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1518,7 +1416,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeMessage(2, getNodePoolSoakDuration());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1538,7 +1436,7 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(2, getNodePoolSoakDuration());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1566,7 +1464,7 @@ public boolean equals(final java.lang.Object obj) {
       case 0:
       default:
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1589,7 +1487,7 @@ public int hashCode() {
       case 0:
       default:
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1736,6 +1634,9 @@ private void maybeForceBuilderInitialization() {
     @java.lang.Override
     public Builder clear() {
       super.clear();
+      if (standardRolloutPolicyBuilder_ != null) {
+        standardRolloutPolicyBuilder_.clear();
+      }
       if (nodePoolSoakDurationBuilder_ == null) {
         nodePoolSoakDuration_ = null;
       } else {
@@ -1853,7 +1754,7 @@ public Builder mergeFrom(com.google.container.v1beta1.BlueGreenSettings other) {
             break;
           }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1868,17 +1769,45 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.BlueGreenSettings parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getStandardRolloutPolicyFieldBuilder().getBuilder(), extensionRegistry);
+                rolloutPolicyCase_ = 1;
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(
+                    getNodePoolSoakDurationFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.BlueGreenSettings) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2370,7 +2299,18 @@ public BlueGreenSettings parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new BlueGreenSettings(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CancelOperationRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CancelOperationRequest.java
index 377da3f4..cbc44743 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CancelOperationRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CancelOperationRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CancelOperationRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              operationId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_CancelOperationRequest_descriptor;
@@ -152,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2928
+   *     google/container/v1beta1/cluster_service.proto;l=2941
    * @return The projectId.
    */
   @java.lang.Override
@@ -181,7 +114,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2928
+   *     google/container/v1beta1/cluster_service.proto;l=2941
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -213,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2937
+   *     google/container/v1beta1/cluster_service.proto;l=2950
    * @return The zone.
    */
   @java.lang.Override
@@ -242,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2937
+   *     google/container/v1beta1/cluster_service.proto;l=2950
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -273,7 +206,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.operation_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2944
+   *     google/container/v1beta1/cluster_service.proto;l=2957
    * @return The operationId.
    */
   @java.lang.Override
@@ -301,7 +234,7 @@ public java.lang.String getOperationId() {
    * 
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.operation_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2944
+   *     google/container/v1beta1/cluster_service.proto;l=2957
    * @return The bytes for operationId.
    */
   @java.lang.Override
@@ -395,7 +328,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -416,7 +349,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -436,7 +369,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getOperationId().equals(other.getOperationId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -455,7 +388,7 @@ public int hashCode() {
     hash = (53 * hash) + getOperationId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -584,17 +517,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.CancelOperationRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -705,7 +631,7 @@ public Builder mergeFrom(com.google.container.v1beta1.CancelOperationRequest oth
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -720,18 +646,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.CancelOperationRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                operationId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.CancelOperationRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -749,7 +712,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2928
+     *     google/container/v1beta1/cluster_service.proto;l=2941
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -777,7 +740,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2928
+     *     google/container/v1beta1/cluster_service.proto;l=2941
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -805,7 +768,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2928
+     *     google/container/v1beta1/cluster_service.proto;l=2941
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -832,7 +795,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2928
+     *     google/container/v1beta1/cluster_service.proto;l=2941
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -855,7 +818,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2928
+     *     google/container/v1beta1/cluster_service.proto;l=2941
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -885,7 +848,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2937
+     *     google/container/v1beta1/cluster_service.proto;l=2950
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -913,7 +876,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2937
+     *     google/container/v1beta1/cluster_service.proto;l=2950
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -941,7 +904,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2937
+     *     google/container/v1beta1/cluster_service.proto;l=2950
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -968,7 +931,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2937
+     *     google/container/v1beta1/cluster_service.proto;l=2950
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -991,7 +954,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2937
+     *     google/container/v1beta1/cluster_service.proto;l=2950
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1020,7 +983,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.operation_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2944
+     *     google/container/v1beta1/cluster_service.proto;l=2957
      * @return The operationId.
      */
     @java.lang.Deprecated
@@ -1047,7 +1010,7 @@ public java.lang.String getOperationId() {
      * 
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.operation_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2944
+     *     google/container/v1beta1/cluster_service.proto;l=2957
      * @return The bytes for operationId.
      */
     @java.lang.Deprecated
@@ -1074,7 +1037,7 @@ public com.google.protobuf.ByteString getOperationIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.operation_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2944
+     *     google/container/v1beta1/cluster_service.proto;l=2957
      * @param value The operationId to set.
      * @return This builder for chaining.
      */
@@ -1100,7 +1063,7 @@ public Builder setOperationId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.operation_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2944
+     *     google/container/v1beta1/cluster_service.proto;l=2957
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1122,7 +1085,7 @@ public Builder clearOperationId() {
      * 
      *
      * @deprecated google.container.v1beta1.CancelOperationRequest.operation_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2944
+     *     google/container/v1beta1/cluster_service.proto;l=2957
      * @param value The bytes for operationId to set.
      * @return This builder for chaining.
      */
@@ -1281,7 +1244,18 @@ public CancelOperationRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CancelOperationRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CancelOperationRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CancelOperationRequestOrBuilder.java
index f3e3c51c..0347dc16 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CancelOperationRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CancelOperationRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface CancelOperationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2928
+   *     google/container/v1beta1/cluster_service.proto;l=2941
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface CancelOperationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2928
+   *     google/container/v1beta1/cluster_service.proto;l=2941
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface CancelOperationRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2937
+   *     google/container/v1beta1/cluster_service.proto;l=2950
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface CancelOperationRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2937
+   *     google/container/v1beta1/cluster_service.proto;l=2950
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface CancelOperationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.operation_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2944
+   *     google/container/v1beta1/cluster_service.proto;l=2957
    * @return The operationId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface CancelOperationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CancelOperationRequest.operation_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2944
+   *     google/container/v1beta1/cluster_service.proto;l=2957
    * @return The bytes for operationId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClientCertificateConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClientCertificateConfig.java
index 56b1bade..eaa490c6 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClientCertificateConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClientCertificateConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ClientCertificateConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              issueClientCertificate_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ClientCertificateConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (issueClientCertificate_ != false) {
       output.writeBool(1, issueClientCertificate_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (issueClientCertificate_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, issueClientCertificate_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.ClientCertificateConfig) obj;
 
     if (getIssueClientCertificate() != other.getIssueClientCertificate()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ISSUE_CLIENT_CERTIFICATE_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getIssueClientCertificate());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ClientCertificateConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -414,7 +363,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ClientCertificateConfig ot
       if (other.getIssueClientCertificate() != false) {
         setIssueClientCertificate(other.getIssueClientCertificate());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -429,18 +378,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ClientCertificateConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                issueClientCertificate_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ClientCertificateConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +496,18 @@ public ClientCertificateConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ClientCertificateConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CloudRunConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CloudRunConfig.java
index c59111c1..5619d262 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CloudRunConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CloudRunConfig.java
@@ -52,57 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CloudRunConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              loadBalancerType_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_CloudRunConfig_descriptor;
@@ -356,7 +305,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
             .getNumber()) {
       output.writeEnum(3, loadBalancerType_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -374,7 +323,7 @@ public int getSerializedSize() {
             .getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, loadBalancerType_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -392,7 +341,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getDisabled() != other.getDisabled()) return false;
     if (loadBalancerType_ != other.loadBalancerType_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -407,7 +356,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
     hash = (37 * hash) + LOAD_BALANCER_TYPE_FIELD_NUMBER;
     hash = (53 * hash) + loadBalancerType_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -536,17 +485,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.CloudRunConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -640,7 +582,7 @@ public Builder mergeFrom(com.google.container.v1beta1.CloudRunConfig other) {
       if (other.loadBalancerType_ != 0) {
         setLoadBalancerTypeValue(other.getLoadBalancerTypeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -655,17 +597,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.CloudRunConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 24:
+              {
+                loadBalancerType_ = input.readEnum();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.CloudRunConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -852,7 +820,18 @@ public CloudRunConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CloudRunConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Cluster.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Cluster.java
index a95bbe50..1ad5328d 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Cluster.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Cluster.java
@@ -78,911 +78,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private Cluster(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              description_ = s;
-              break;
-            }
-          case 24:
-            {
-              initialNodeCount_ = input.readInt32();
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1beta1.NodeConfig.Builder subBuilder = null;
-              if (nodeConfig_ != null) {
-                subBuilder = nodeConfig_.toBuilder();
-              }
-              nodeConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodeConfig_);
-                nodeConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1beta1.MasterAuth.Builder subBuilder = null;
-              if (masterAuth_ != null) {
-                subBuilder = masterAuth_.toBuilder();
-              }
-              masterAuth_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MasterAuth.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(masterAuth_);
-                masterAuth_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              loggingService_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              monitoringService_ = s;
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              network_ = s;
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterIpv4Cidr_ = s;
-              break;
-            }
-          case 82:
-            {
-              com.google.container.v1beta1.AddonsConfig.Builder subBuilder = null;
-              if (addonsConfig_ != null) {
-                subBuilder = addonsConfig_.toBuilder();
-              }
-              addonsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.AddonsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(addonsConfig_);
-                addonsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 90:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              subnetwork_ = s;
-              break;
-            }
-          case 98:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                nodePools_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              nodePools_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePool.parser(), extensionRegistry));
-              break;
-            }
-          case 106:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                locations_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              locations_.add(s);
-              break;
-            }
-          case 112:
-            {
-              enableKubernetesAlpha_ = input.readBool();
-              break;
-            }
-          case 122:
-            {
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                resourceLabels_ =
-                    com.google.protobuf.MapField.newMapField(
-                        ResourceLabelsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000004;
-              }
-              com.google.protobuf.MapEntry resourceLabels__ =
-                  input.readMessage(
-                      ResourceLabelsDefaultEntryHolder.defaultEntry.getParserForType(),
-                      extensionRegistry);
-              resourceLabels_
-                  .getMutableMap()
-                  .put(resourceLabels__.getKey(), resourceLabels__.getValue());
-              break;
-            }
-          case 130:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              labelFingerprint_ = s;
-              break;
-            }
-          case 146:
-            {
-              com.google.container.v1beta1.LegacyAbac.Builder subBuilder = null;
-              if (legacyAbac_ != null) {
-                subBuilder = legacyAbac_.toBuilder();
-              }
-              legacyAbac_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.LegacyAbac.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(legacyAbac_);
-                legacyAbac_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 154:
-            {
-              com.google.container.v1beta1.NetworkPolicy.Builder subBuilder = null;
-              if (networkPolicy_ != null) {
-                subBuilder = networkPolicy_.toBuilder();
-              }
-              networkPolicy_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NetworkPolicy.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkPolicy_);
-                networkPolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 162:
-            {
-              com.google.container.v1beta1.IPAllocationPolicy.Builder subBuilder = null;
-              if (ipAllocationPolicy_ != null) {
-                subBuilder = ipAllocationPolicy_.toBuilder();
-              }
-              ipAllocationPolicy_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.IPAllocationPolicy.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(ipAllocationPolicy_);
-                ipAllocationPolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 178:
-            {
-              com.google.container.v1beta1.MasterAuthorizedNetworksConfig.Builder subBuilder = null;
-              if (masterAuthorizedNetworksConfig_ != null) {
-                subBuilder = masterAuthorizedNetworksConfig_.toBuilder();
-              }
-              masterAuthorizedNetworksConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MasterAuthorizedNetworksConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(masterAuthorizedNetworksConfig_);
-                masterAuthorizedNetworksConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 186:
-            {
-              com.google.container.v1beta1.MaintenancePolicy.Builder subBuilder = null;
-              if (maintenancePolicy_ != null) {
-                subBuilder = maintenancePolicy_.toBuilder();
-              }
-              maintenancePolicy_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MaintenancePolicy.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(maintenancePolicy_);
-                maintenancePolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 194:
-            {
-              com.google.container.v1beta1.BinaryAuthorization.Builder subBuilder = null;
-              if (binaryAuthorization_ != null) {
-                subBuilder = binaryAuthorization_.toBuilder();
-              }
-              binaryAuthorization_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.BinaryAuthorization.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(binaryAuthorization_);
-                binaryAuthorization_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 202:
-            {
-              com.google.container.v1beta1.PodSecurityPolicyConfig.Builder subBuilder = null;
-              if (podSecurityPolicyConfig_ != null) {
-                subBuilder = podSecurityPolicyConfig_.toBuilder();
-              }
-              podSecurityPolicyConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.PodSecurityPolicyConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(podSecurityPolicyConfig_);
-                podSecurityPolicyConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 210:
-            {
-              com.google.container.v1beta1.ClusterAutoscaling.Builder subBuilder = null;
-              if (autoscaling_ != null) {
-                subBuilder = autoscaling_.toBuilder();
-              }
-              autoscaling_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ClusterAutoscaling.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(autoscaling_);
-                autoscaling_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 218:
-            {
-              com.google.container.v1beta1.NetworkConfig.Builder subBuilder = null;
-              if (networkConfig_ != null) {
-                subBuilder = networkConfig_.toBuilder();
-              }
-              networkConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NetworkConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkConfig_);
-                networkConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 224:
-            {
-              privateCluster_ = input.readBool();
-              break;
-            }
-          case 234:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              masterIpv4CidrBlock_ = s;
-              break;
-            }
-          case 242:
-            {
-              com.google.container.v1beta1.MaxPodsConstraint.Builder subBuilder = null;
-              if (defaultMaxPodsConstraint_ != null) {
-                subBuilder = defaultMaxPodsConstraint_.toBuilder();
-              }
-              defaultMaxPodsConstraint_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MaxPodsConstraint.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(defaultMaxPodsConstraint_);
-                defaultMaxPodsConstraint_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 266:
-            {
-              com.google.container.v1beta1.ResourceUsageExportConfig.Builder subBuilder = null;
-              if (resourceUsageExportConfig_ != null) {
-                subBuilder = resourceUsageExportConfig_.toBuilder();
-              }
-              resourceUsageExportConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ResourceUsageExportConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(resourceUsageExportConfig_);
-                resourceUsageExportConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 274:
-            {
-              com.google.container.v1beta1.AuthenticatorGroupsConfig.Builder subBuilder = null;
-              if (authenticatorGroupsConfig_ != null) {
-                subBuilder = authenticatorGroupsConfig_.toBuilder();
-              }
-              authenticatorGroupsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.AuthenticatorGroupsConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(authenticatorGroupsConfig_);
-                authenticatorGroupsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 298:
-            {
-              com.google.container.v1beta1.PrivateClusterConfig.Builder subBuilder = null;
-              if (privateClusterConfig_ != null) {
-                subBuilder = privateClusterConfig_.toBuilder();
-              }
-              privateClusterConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.PrivateClusterConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(privateClusterConfig_);
-                privateClusterConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 306:
-            {
-              com.google.container.v1beta1.DatabaseEncryption.Builder subBuilder = null;
-              if (databaseEncryption_ != null) {
-                subBuilder = databaseEncryption_.toBuilder();
-              }
-              databaseEncryption_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.DatabaseEncryption.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(databaseEncryption_);
-                databaseEncryption_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 314:
-            {
-              com.google.container.v1beta1.VerticalPodAutoscaling.Builder subBuilder = null;
-              if (verticalPodAutoscaling_ != null) {
-                subBuilder = verticalPodAutoscaling_.toBuilder();
-              }
-              verticalPodAutoscaling_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.VerticalPodAutoscaling.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(verticalPodAutoscaling_);
-                verticalPodAutoscaling_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 322:
-            {
-              com.google.container.v1beta1.ShieldedNodes.Builder subBuilder = null;
-              if (shieldedNodes_ != null) {
-                subBuilder = shieldedNodes_.toBuilder();
-              }
-              shieldedNodes_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ShieldedNodes.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(shieldedNodes_);
-                shieldedNodes_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 330:
-            {
-              com.google.container.v1beta1.ReleaseChannel.Builder subBuilder = null;
-              if (releaseChannel_ != null) {
-                subBuilder = releaseChannel_.toBuilder();
-              }
-              releaseChannel_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ReleaseChannel.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(releaseChannel_);
-                releaseChannel_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 346:
-            {
-              com.google.container.v1beta1.WorkloadIdentityConfig.Builder subBuilder = null;
-              if (workloadIdentityConfig_ != null) {
-                subBuilder = workloadIdentityConfig_.toBuilder();
-              }
-              workloadIdentityConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.WorkloadIdentityConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(workloadIdentityConfig_);
-                workloadIdentityConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 362:
-            {
-              com.google.container.v1beta1.CostManagementConfig.Builder subBuilder = null;
-              if (costManagementConfig_ != null) {
-                subBuilder = costManagementConfig_.toBuilder();
-              }
-              costManagementConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.CostManagementConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(costManagementConfig_);
-                costManagementConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 370:
-            {
-              com.google.container.v1beta1.ClusterTelemetry.Builder subBuilder = null;
-              if (clusterTelemetry_ != null) {
-                subBuilder = clusterTelemetry_.toBuilder();
-              }
-              clusterTelemetry_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ClusterTelemetry.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(clusterTelemetry_);
-                clusterTelemetry_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 378:
-            {
-              com.google.container.v1beta1.TpuConfig.Builder subBuilder = null;
-              if (tpuConfig_ != null) {
-                subBuilder = tpuConfig_.toBuilder();
-              }
-              tpuConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.TpuConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(tpuConfig_);
-                tpuConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 394:
-            {
-              com.google.container.v1beta1.NotificationConfig.Builder subBuilder = null;
-              if (notificationConfig_ != null) {
-                subBuilder = notificationConfig_.toBuilder();
-              }
-              notificationConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NotificationConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(notificationConfig_);
-                notificationConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 402:
-            {
-              com.google.container.v1beta1.ConfidentialNodes.Builder subBuilder = null;
-              if (confidentialNodes_ != null) {
-                subBuilder = confidentialNodes_.toBuilder();
-              }
-              confidentialNodes_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ConfidentialNodes.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(confidentialNodes_);
-                confidentialNodes_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 418:
-            {
-              com.google.container.v1beta1.WorkloadCertificates.Builder subBuilder = null;
-              if (workloadCertificates_ != null) {
-                subBuilder = workloadCertificates_.toBuilder();
-              }
-              workloadCertificates_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.WorkloadCertificates.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(workloadCertificates_);
-                workloadCertificates_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 426:
-            {
-              com.google.container.v1beta1.WorkloadALTSConfig.Builder subBuilder = null;
-              if (workloadAltsConfig_ != null) {
-                subBuilder = workloadAltsConfig_.toBuilder();
-              }
-              workloadAltsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.WorkloadALTSConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(workloadAltsConfig_);
-                workloadAltsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 434:
-            {
-              com.google.container.v1beta1.IdentityServiceConfig.Builder subBuilder = null;
-              if (identityServiceConfig_ != null) {
-                subBuilder = identityServiceConfig_.toBuilder();
-              }
-              identityServiceConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.IdentityServiceConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(identityServiceConfig_);
-                identityServiceConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 538:
-            {
-              com.google.container.v1beta1.MeshCertificates.Builder subBuilder = null;
-              if (meshCertificates_ != null) {
-                subBuilder = meshCertificates_.toBuilder();
-              }
-              meshCertificates_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MeshCertificates.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(meshCertificates_);
-                meshCertificates_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 802:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              selfLink_ = s;
-              break;
-            }
-          case 810:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 818:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              endpoint_ = s;
-              break;
-            }
-          case 826:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              initialClusterVersion_ = s;
-              break;
-            }
-          case 834:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              currentMasterVersion_ = s;
-              break;
-            }
-          case 842:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              currentNodeVersion_ = s;
-              break;
-            }
-          case 850:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              createTime_ = s;
-              break;
-            }
-          case 856:
-            {
-              int rawValue = input.readEnum();
-
-              status_ = rawValue;
-              break;
-            }
-          case 866:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              statusMessage_ = s;
-              break;
-            }
-          case 872:
-            {
-              nodeIpv4CidrSize_ = input.readInt32();
-              break;
-            }
-          case 882:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              servicesIpv4Cidr_ = s;
-              break;
-            }
-          case 890:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000008) != 0)) {
-                instanceGroupUrls_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000008;
-              }
-              instanceGroupUrls_.add(s);
-              break;
-            }
-          case 896:
-            {
-              currentNodeCount_ = input.readInt32();
-              break;
-            }
-          case 906:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              expireTime_ = s;
-              break;
-            }
-          case 914:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              location_ = s;
-              break;
-            }
-          case 920:
-            {
-              enableTpu_ = input.readBool();
-              break;
-            }
-          case 930:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              tpuIpv4CidrBlock_ = s;
-              break;
-            }
-          case 946:
-            {
-              if (!((mutable_bitField0_ & 0x00000010) != 0)) {
-                conditions_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000010;
-              }
-              conditions_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.StatusCondition.parser(), extensionRegistry));
-              break;
-            }
-          case 994:
-            {
-              com.google.container.v1beta1.Master.Builder subBuilder = null;
-              if (master_ != null) {
-                subBuilder = master_.toBuilder();
-              }
-              master_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.Master.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(master_);
-                master_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 1026:
-            {
-              com.google.container.v1beta1.Autopilot.Builder subBuilder = null;
-              if (autopilot_ != null) {
-                subBuilder = autopilot_.toBuilder();
-              }
-              autopilot_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.Autopilot.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(autopilot_);
-                autopilot_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 1034:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              id_ = s;
-              break;
-            }
-          case 1050:
-            {
-              com.google.container.v1beta1.NodePoolDefaults.Builder subBuilder = null;
-              if (((bitField0_ & 0x00000001) != 0)) {
-                subBuilder = nodePoolDefaults_.toBuilder();
-              }
-              nodePoolDefaults_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePoolDefaults.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodePoolDefaults_);
-                nodePoolDefaults_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000001;
-              break;
-            }
-          case 1058:
-            {
-              com.google.container.v1beta1.LoggingConfig.Builder subBuilder = null;
-              if (loggingConfig_ != null) {
-                subBuilder = loggingConfig_.toBuilder();
-              }
-              loggingConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.LoggingConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(loggingConfig_);
-                loggingConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 1066:
-            {
-              com.google.container.v1beta1.MonitoringConfig.Builder subBuilder = null;
-              if (monitoringConfig_ != null) {
-                subBuilder = monitoringConfig_.toBuilder();
-              }
-              monitoringConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MonitoringConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(monitoringConfig_);
-                monitoringConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 1090:
-            {
-              com.google.container.v1beta1.NodePoolAutoConfig.Builder subBuilder = null;
-              if (nodePoolAutoConfig_ != null) {
-                subBuilder = nodePoolAutoConfig_.toBuilder();
-              }
-              nodePoolAutoConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePoolAutoConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodePoolAutoConfig_);
-                nodePoolAutoConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 1098:
-            {
-              com.google.container.v1beta1.ProtectConfig.Builder subBuilder = null;
-              if (((bitField0_ & 0x00000002) != 0)) {
-                subBuilder = protectConfig_.toBuilder();
-              }
-              protectConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ProtectConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(protectConfig_);
-                protectConfig_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000002;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        nodePools_ = java.util.Collections.unmodifiableList(nodePools_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        locations_ = locations_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000008) != 0)) {
-        instanceGroupUrls_ = instanceGroupUrls_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000010) != 0)) {
-        conditions_ = java.util.Collections.unmodifiableList(conditions_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_Cluster_descriptor;
@@ -1393,7 +488,7 @@ public com.google.protobuf.ByteString getDescriptionBytes() {
    * int32 initial_node_count = 3 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.initial_node_count is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1551
+   *     google/container/v1beta1/cluster_service.proto;l=1555
    * @return The initialNodeCount.
    */
   @java.lang.Override
@@ -1423,7 +518,7 @@ public int getInitialNodeCount() {
    * .google.container.v1beta1.NodeConfig node_config = 4 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.node_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1564
+   *     google/container/v1beta1/cluster_service.proto;l=1568
    * @return Whether the nodeConfig field is set.
    */
   @java.lang.Override
@@ -1450,7 +545,7 @@ public boolean hasNodeConfig() {
    * .google.container.v1beta1.NodeConfig node_config = 4 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.node_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1564
+   *     google/container/v1beta1/cluster_service.proto;l=1568
    * @return The nodeConfig.
    */
   @java.lang.Override
@@ -2697,7 +1792,7 @@ public com.google.container.v1beta1.NetworkConfigOrBuilder getNetworkConfigOrBui
    * bool private_cluster = 28 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.private_cluster is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1686
+   *     google/container/v1beta1/cluster_service.proto;l=1690
    * @return The privateCluster.
    */
   @java.lang.Override
@@ -2722,7 +1817,7 @@ public boolean getPrivateCluster() {
    * string master_ipv4_cidr_block = 29 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.master_ipv4_cidr_block is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1693
+   *     google/container/v1beta1/cluster_service.proto;l=1697
    * @return The masterIpv4CidrBlock.
    */
   @java.lang.Override
@@ -2752,7 +1847,7 @@ public java.lang.String getMasterIpv4CidrBlock() {
    * string master_ipv4_cidr_block = 29 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.master_ipv4_cidr_block is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1693
+   *     google/container/v1beta1/cluster_service.proto;l=1697
    * @return The bytes for masterIpv4CidrBlock.
    */
   @java.lang.Override
@@ -3684,7 +2779,7 @@ public com.google.protobuf.ByteString getSelfLinkBytes() {
    * string zone = 101 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1759
+   *     google/container/v1beta1/cluster_service.proto;l=1763
    * @return The zone.
    */
   @java.lang.Override
@@ -3712,7 +2807,7 @@ public java.lang.String getZone() {
    * string zone = 101 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1759
+   *     google/container/v1beta1/cluster_service.proto;l=1763
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -3920,7 +3015,7 @@ public com.google.protobuf.ByteString getCurrentMasterVersionBytes() {
    * string current_node_version = 105 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.current_node_version is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1792
+   *     google/container/v1beta1/cluster_service.proto;l=1796
    * @return The currentNodeVersion.
    */
   @java.lang.Override
@@ -3950,7 +3045,7 @@ public java.lang.String getCurrentNodeVersion() {
    * string current_node_version = 105 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.current_node_version is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1792
+   *     google/container/v1beta1/cluster_service.proto;l=1796
    * @return The bytes for currentNodeVersion.
    */
   @java.lang.Override
@@ -4068,7 +3163,7 @@ public com.google.container.v1beta1.Cluster.Status getStatus() {
    * string status_message = 108 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1804
+   *     google/container/v1beta1/cluster_service.proto;l=1808
    * @return The statusMessage.
    */
   @java.lang.Override
@@ -4096,7 +3191,7 @@ public java.lang.String getStatusMessage() {
    * string status_message = 108 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1804
+   *     google/container/v1beta1/cluster_service.proto;l=1808
    * @return The bytes for statusMessage.
    */
   @java.lang.Override
@@ -4203,7 +3298,7 @@ public com.google.protobuf.ByteString getServicesIpv4CidrBytes() {
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1820
+   *     google/container/v1beta1/cluster_service.proto;l=1824
    * @return A list containing the instanceGroupUrls.
    */
   @java.lang.Deprecated
@@ -4220,7 +3315,7 @@ public com.google.protobuf.ProtocolStringList getInstanceGroupUrlsList() {
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1820
+   *     google/container/v1beta1/cluster_service.proto;l=1824
    * @return The count of instanceGroupUrls.
    */
   @java.lang.Deprecated
@@ -4237,7 +3332,7 @@ public int getInstanceGroupUrlsCount() {
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1820
+   *     google/container/v1beta1/cluster_service.proto;l=1824
    * @param index The index of the element to return.
    * @return The instanceGroupUrls at the given index.
    */
@@ -4255,7 +3350,7 @@ public java.lang.String getInstanceGroupUrls(int index) {
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1820
+   *     google/container/v1beta1/cluster_service.proto;l=1824
    * @param index The index of the value to return.
    * @return The bytes of the instanceGroupUrls at the given index.
    */
@@ -4277,7 +3372,7 @@ public com.google.protobuf.ByteString getInstanceGroupUrlsBytes(int index) {
    * int32 current_node_count = 112 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.current_node_count is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1824
+   *     google/container/v1beta1/cluster_service.proto;l=1828
    * @return The currentNodeCount.
    */
   @java.lang.Override
@@ -5202,7 +4297,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000002) != 0)) {
       output.writeMessage(137, getProtectConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -5459,7 +4554,7 @@ public int getSerializedSize() {
     if (((bitField0_ & 0x00000002) != 0)) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(137, getProtectConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -5660,7 +4755,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasProtectConfig()) {
       if (!getProtectConfig().equals(other.getProtectConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -5897,7 +4992,7 @@ public int hashCode() {
       hash = (37 * hash) + PROTECT_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getProtectConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -6102,10 +5197,11 @@ public Builder clear() {
 
       if (nodePoolsBuilder_ == null) {
         nodePools_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        nodePools_ = null;
         nodePoolsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       locations_ = com.google.protobuf.LazyStringArrayList.EMPTY;
       bitField0_ = (bitField0_ & ~0x00000002);
       enableKubernetesAlpha_ = false;
@@ -6315,10 +5411,11 @@ public Builder clear() {
       }
       if (conditionsBuilder_ == null) {
         conditions_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000010);
       } else {
+        conditions_ = null;
         conditionsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000010);
       if (masterBuilder_ == null) {
         master_ = null;
       } else {
@@ -6986,7 +6083,7 @@ public Builder mergeFrom(com.google.container.v1beta1.Cluster other) {
       if (other.hasProtectConfig()) {
         mergeProtectConfig(other.getProtectConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -7001,17 +6098,502 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.Cluster parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                description_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                initialNodeCount_ = input.readInt32();
+
+                break;
+              } // case 24
+            case 34:
+              {
+                input.readMessage(getNodeConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                input.readMessage(getMasterAuthFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 50:
+              {
+                loggingService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 58:
+              {
+                monitoringService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                network_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 74:
+              {
+                clusterIpv4Cidr_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 82:
+              {
+                input.readMessage(getAddonsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 82
+            case 90:
+              {
+                subnetwork_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 90
+            case 98:
+              {
+                com.google.container.v1beta1.NodePool m =
+                    input.readMessage(
+                        com.google.container.v1beta1.NodePool.parser(), extensionRegistry);
+                if (nodePoolsBuilder_ == null) {
+                  ensureNodePoolsIsMutable();
+                  nodePools_.add(m);
+                } else {
+                  nodePoolsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 98
+            case 106:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureLocationsIsMutable();
+                locations_.add(s);
+                break;
+              } // case 106
+            case 112:
+              {
+                enableKubernetesAlpha_ = input.readBool();
+
+                break;
+              } // case 112
+            case 122:
+              {
+                com.google.protobuf.MapEntry resourceLabels__ =
+                    input.readMessage(
+                        ResourceLabelsDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableResourceLabels()
+                    .getMutableMap()
+                    .put(resourceLabels__.getKey(), resourceLabels__.getValue());
+                break;
+              } // case 122
+            case 130:
+              {
+                labelFingerprint_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 130
+            case 146:
+              {
+                input.readMessage(getLegacyAbacFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 146
+            case 154:
+              {
+                input.readMessage(getNetworkPolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 154
+            case 162:
+              {
+                input.readMessage(
+                    getIpAllocationPolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 162
+            case 178:
+              {
+                input.readMessage(
+                    getMasterAuthorizedNetworksConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 178
+            case 186:
+              {
+                input.readMessage(
+                    getMaintenancePolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 186
+            case 194:
+              {
+                input.readMessage(
+                    getBinaryAuthorizationFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 194
+            case 202:
+              {
+                input.readMessage(
+                    getPodSecurityPolicyConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 202
+            case 210:
+              {
+                input.readMessage(getAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 210
+            case 218:
+              {
+                input.readMessage(getNetworkConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 218
+            case 224:
+              {
+                privateCluster_ = input.readBool();
+
+                break;
+              } // case 224
+            case 234:
+              {
+                masterIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 234
+            case 242:
+              {
+                input.readMessage(
+                    getDefaultMaxPodsConstraintFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 242
+            case 266:
+              {
+                input.readMessage(
+                    getResourceUsageExportConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 266
+            case 274:
+              {
+                input.readMessage(
+                    getAuthenticatorGroupsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 274
+            case 298:
+              {
+                input.readMessage(
+                    getPrivateClusterConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 298
+            case 306:
+              {
+                input.readMessage(
+                    getDatabaseEncryptionFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 306
+            case 314:
+              {
+                input.readMessage(
+                    getVerticalPodAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 314
+            case 322:
+              {
+                input.readMessage(getShieldedNodesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 322
+            case 330:
+              {
+                input.readMessage(getReleaseChannelFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 330
+            case 346:
+              {
+                input.readMessage(
+                    getWorkloadIdentityConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 346
+            case 362:
+              {
+                input.readMessage(
+                    getCostManagementConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 362
+            case 370:
+              {
+                input.readMessage(
+                    getClusterTelemetryFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 370
+            case 378:
+              {
+                input.readMessage(getTpuConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 378
+            case 394:
+              {
+                input.readMessage(
+                    getNotificationConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 394
+            case 402:
+              {
+                input.readMessage(
+                    getConfidentialNodesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 402
+            case 418:
+              {
+                input.readMessage(
+                    getWorkloadCertificatesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 418
+            case 426:
+              {
+                input.readMessage(
+                    getWorkloadAltsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 426
+            case 434:
+              {
+                input.readMessage(
+                    getIdentityServiceConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 434
+            case 538:
+              {
+                input.readMessage(
+                    getMeshCertificatesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 538
+            case 802:
+              {
+                selfLink_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 802
+            case 810:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 810
+            case 818:
+              {
+                endpoint_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 818
+            case 826:
+              {
+                initialClusterVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 826
+            case 834:
+              {
+                currentMasterVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 834
+            case 842:
+              {
+                currentNodeVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 842
+            case 850:
+              {
+                createTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 850
+            case 856:
+              {
+                status_ = input.readEnum();
+
+                break;
+              } // case 856
+            case 866:
+              {
+                statusMessage_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 866
+            case 872:
+              {
+                nodeIpv4CidrSize_ = input.readInt32();
+
+                break;
+              } // case 872
+            case 882:
+              {
+                servicesIpv4Cidr_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 882
+            case 890:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureInstanceGroupUrlsIsMutable();
+                instanceGroupUrls_.add(s);
+                break;
+              } // case 890
+            case 896:
+              {
+                currentNodeCount_ = input.readInt32();
+
+                break;
+              } // case 896
+            case 906:
+              {
+                expireTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 906
+            case 914:
+              {
+                location_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 914
+            case 920:
+              {
+                enableTpu_ = input.readBool();
+
+                break;
+              } // case 920
+            case 930:
+              {
+                tpuIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 930
+            case 946:
+              {
+                com.google.container.v1beta1.StatusCondition m =
+                    input.readMessage(
+                        com.google.container.v1beta1.StatusCondition.parser(), extensionRegistry);
+                if (conditionsBuilder_ == null) {
+                  ensureConditionsIsMutable();
+                  conditions_.add(m);
+                } else {
+                  conditionsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 946
+            case 994:
+              {
+                input.readMessage(getMasterFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 994
+            case 1026:
+              {
+                input.readMessage(getAutopilotFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 1026
+            case 1034:
+              {
+                id_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 1034
+            case 1050:
+              {
+                input.readMessage(
+                    getNodePoolDefaultsFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000020;
+                break;
+              } // case 1050
+            case 1058:
+              {
+                input.readMessage(getLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 1058
+            case 1066:
+              {
+                input.readMessage(
+                    getMonitoringConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 1066
+            case 1090:
+              {
+                input.readMessage(
+                    getNodePoolAutoConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 1090
+            case 1098:
+              {
+                input.readMessage(getProtectConfigFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000040;
+                break;
+              } // case 1098
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.Cluster) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -7273,7 +6855,7 @@ public Builder setDescriptionBytes(com.google.protobuf.ByteString value) {
      * int32 initial_node_count = 3 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.initial_node_count is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1551
+     *     google/container/v1beta1/cluster_service.proto;l=1555
      * @return The initialNodeCount.
      */
     @java.lang.Override
@@ -7299,7 +6881,7 @@ public int getInitialNodeCount() {
      * int32 initial_node_count = 3 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.initial_node_count is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1551
+     *     google/container/v1beta1/cluster_service.proto;l=1555
      * @param value The initialNodeCount to set.
      * @return This builder for chaining.
      */
@@ -7328,7 +6910,7 @@ public Builder setInitialNodeCount(int value) {
      * int32 initial_node_count = 3 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.initial_node_count is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1551
+     *     google/container/v1beta1/cluster_service.proto;l=1555
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -7364,7 +6946,7 @@ public Builder clearInitialNodeCount() {
      * .google.container.v1beta1.NodeConfig node_config = 4 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.node_config is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1564
+     *     google/container/v1beta1/cluster_service.proto;l=1568
      * @return Whether the nodeConfig field is set.
      */
     @java.lang.Deprecated
@@ -7390,7 +6972,7 @@ public boolean hasNodeConfig() {
      * .google.container.v1beta1.NodeConfig node_config = 4 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.node_config is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1564
+     *     google/container/v1beta1/cluster_service.proto;l=1568
      * @return The nodeConfig.
      */
     @java.lang.Deprecated
@@ -11381,7 +10963,7 @@ public com.google.container.v1beta1.NetworkConfigOrBuilder getNetworkConfigOrBui
      * bool private_cluster = 28 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.private_cluster is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1686
+     *     google/container/v1beta1/cluster_service.proto;l=1690
      * @return The privateCluster.
      */
     @java.lang.Override
@@ -11403,7 +10985,7 @@ public boolean getPrivateCluster() {
      * bool private_cluster = 28 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.private_cluster is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1686
+     *     google/container/v1beta1/cluster_service.proto;l=1690
      * @param value The privateCluster to set.
      * @return This builder for chaining.
      */
@@ -11428,7 +11010,7 @@ public Builder setPrivateCluster(boolean value) {
      * bool private_cluster = 28 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.private_cluster is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1686
+     *     google/container/v1beta1/cluster_service.proto;l=1690
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -11454,7 +11036,7 @@ public Builder clearPrivateCluster() {
      * string master_ipv4_cidr_block = 29 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.master_ipv4_cidr_block is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1693
+     *     google/container/v1beta1/cluster_service.proto;l=1697
      * @return The masterIpv4CidrBlock.
      */
     @java.lang.Deprecated
@@ -11483,7 +11065,7 @@ public java.lang.String getMasterIpv4CidrBlock() {
      * string master_ipv4_cidr_block = 29 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.master_ipv4_cidr_block is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1693
+     *     google/container/v1beta1/cluster_service.proto;l=1697
      * @return The bytes for masterIpv4CidrBlock.
      */
     @java.lang.Deprecated
@@ -11512,7 +11094,7 @@ public com.google.protobuf.ByteString getMasterIpv4CidrBlockBytes() {
      * string master_ipv4_cidr_block = 29 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.master_ipv4_cidr_block is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1693
+     *     google/container/v1beta1/cluster_service.proto;l=1697
      * @param value The masterIpv4CidrBlock to set.
      * @return This builder for chaining.
      */
@@ -11540,7 +11122,7 @@ public Builder setMasterIpv4CidrBlock(java.lang.String value) {
      * string master_ipv4_cidr_block = 29 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.master_ipv4_cidr_block is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1693
+     *     google/container/v1beta1/cluster_service.proto;l=1697
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -11564,7 +11146,7 @@ public Builder clearMasterIpv4CidrBlock() {
      * string master_ipv4_cidr_block = 29 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.master_ipv4_cidr_block is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1693
+     *     google/container/v1beta1/cluster_service.proto;l=1697
      * @param value The bytes for masterIpv4CidrBlock to set.
      * @return This builder for chaining.
      */
@@ -14983,7 +14565,7 @@ public Builder setSelfLinkBytes(com.google.protobuf.ByteString value) {
      * string zone = 101 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1759
+     *     google/container/v1beta1/cluster_service.proto;l=1763
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -15010,7 +14592,7 @@ public java.lang.String getZone() {
      * string zone = 101 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1759
+     *     google/container/v1beta1/cluster_service.proto;l=1763
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -15037,7 +14619,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 101 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1759
+     *     google/container/v1beta1/cluster_service.proto;l=1763
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -15063,7 +14645,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 101 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1759
+     *     google/container/v1beta1/cluster_service.proto;l=1763
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -15085,7 +14667,7 @@ public Builder clearZone() {
      * string zone = 101 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1759
+     *     google/container/v1beta1/cluster_service.proto;l=1763
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -15504,7 +15086,7 @@ public Builder setCurrentMasterVersionBytes(com.google.protobuf.ByteString value
      * string current_node_version = 105 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.current_node_version is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1792
+     *     google/container/v1beta1/cluster_service.proto;l=1796
      * @return The currentNodeVersion.
      */
     @java.lang.Deprecated
@@ -15533,7 +15115,7 @@ public java.lang.String getCurrentNodeVersion() {
      * string current_node_version = 105 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.current_node_version is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1792
+     *     google/container/v1beta1/cluster_service.proto;l=1796
      * @return The bytes for currentNodeVersion.
      */
     @java.lang.Deprecated
@@ -15562,7 +15144,7 @@ public com.google.protobuf.ByteString getCurrentNodeVersionBytes() {
      * string current_node_version = 105 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.current_node_version is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1792
+     *     google/container/v1beta1/cluster_service.proto;l=1796
      * @param value The currentNodeVersion to set.
      * @return This builder for chaining.
      */
@@ -15590,7 +15172,7 @@ public Builder setCurrentNodeVersion(java.lang.String value) {
      * string current_node_version = 105 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.current_node_version is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1792
+     *     google/container/v1beta1/cluster_service.proto;l=1796
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -15614,7 +15196,7 @@ public Builder clearCurrentNodeVersion() {
      * string current_node_version = 105 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.current_node_version is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1792
+     *     google/container/v1beta1/cluster_service.proto;l=1796
      * @param value The bytes for currentNodeVersion to set.
      * @return This builder for chaining.
      */
@@ -15845,7 +15427,7 @@ public Builder clearStatus() {
      * string status_message = 108 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1804
+     *     google/container/v1beta1/cluster_service.proto;l=1808
      * @return The statusMessage.
      */
     @java.lang.Deprecated
@@ -15872,7 +15454,7 @@ public java.lang.String getStatusMessage() {
      * string status_message = 108 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1804
+     *     google/container/v1beta1/cluster_service.proto;l=1808
      * @return The bytes for statusMessage.
      */
     @java.lang.Deprecated
@@ -15899,7 +15481,7 @@ public com.google.protobuf.ByteString getStatusMessageBytes() {
      * string status_message = 108 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1804
+     *     google/container/v1beta1/cluster_service.proto;l=1808
      * @param value The statusMessage to set.
      * @return This builder for chaining.
      */
@@ -15925,7 +15507,7 @@ public Builder setStatusMessage(java.lang.String value) {
      * string status_message = 108 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1804
+     *     google/container/v1beta1/cluster_service.proto;l=1808
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -15947,7 +15529,7 @@ public Builder clearStatusMessage() {
      * string status_message = 108 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1804
+     *     google/container/v1beta1/cluster_service.proto;l=1808
      * @param value The bytes for statusMessage to set.
      * @return This builder for chaining.
      */
@@ -16169,7 +15751,7 @@ private void ensureInstanceGroupUrlsIsMutable() {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1820
+     *     google/container/v1beta1/cluster_service.proto;l=1824
      * @return A list containing the instanceGroupUrls.
      */
     @java.lang.Deprecated
@@ -16186,7 +15768,7 @@ public com.google.protobuf.ProtocolStringList getInstanceGroupUrlsList() {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1820
+     *     google/container/v1beta1/cluster_service.proto;l=1824
      * @return The count of instanceGroupUrls.
      */
     @java.lang.Deprecated
@@ -16203,7 +15785,7 @@ public int getInstanceGroupUrlsCount() {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1820
+     *     google/container/v1beta1/cluster_service.proto;l=1824
      * @param index The index of the element to return.
      * @return The instanceGroupUrls at the given index.
      */
@@ -16221,7 +15803,7 @@ public java.lang.String getInstanceGroupUrls(int index) {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1820
+     *     google/container/v1beta1/cluster_service.proto;l=1824
      * @param index The index of the value to return.
      * @return The bytes of the instanceGroupUrls at the given index.
      */
@@ -16239,7 +15821,7 @@ public com.google.protobuf.ByteString getInstanceGroupUrlsBytes(int index) {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1820
+     *     google/container/v1beta1/cluster_service.proto;l=1824
      * @param index The index to set the value at.
      * @param value The instanceGroupUrls to set.
      * @return This builder for chaining.
@@ -16264,7 +15846,7 @@ public Builder setInstanceGroupUrls(int index, java.lang.String value) {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1820
+     *     google/container/v1beta1/cluster_service.proto;l=1824
      * @param value The instanceGroupUrls to add.
      * @return This builder for chaining.
      */
@@ -16288,7 +15870,7 @@ public Builder addInstanceGroupUrls(java.lang.String value) {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1820
+     *     google/container/v1beta1/cluster_service.proto;l=1824
      * @param values The instanceGroupUrls to add.
      * @return This builder for chaining.
      */
@@ -16309,7 +15891,7 @@ public Builder addAllInstanceGroupUrls(java.lang.Iterable valu
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1820
+     *     google/container/v1beta1/cluster_service.proto;l=1824
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -16329,7 +15911,7 @@ public Builder clearInstanceGroupUrls() {
      * repeated string instance_group_urls = 111 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1820
+     *     google/container/v1beta1/cluster_service.proto;l=1824
      * @param value The bytes of the instanceGroupUrls to add.
      * @return This builder for chaining.
      */
@@ -16357,7 +15939,7 @@ public Builder addInstanceGroupUrlsBytes(com.google.protobuf.ByteString value) {
      * int32 current_node_count = 112 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.current_node_count is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1824
+     *     google/container/v1beta1/cluster_service.proto;l=1828
      * @return The currentNodeCount.
      */
     @java.lang.Override
@@ -16376,7 +15958,7 @@ public int getCurrentNodeCount() {
      * int32 current_node_count = 112 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.current_node_count is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1824
+     *     google/container/v1beta1/cluster_service.proto;l=1828
      * @param value The currentNodeCount to set.
      * @return This builder for chaining.
      */
@@ -16398,7 +15980,7 @@ public Builder setCurrentNodeCount(int value) {
      * int32 current_node_count = 112 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Cluster.current_node_count is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1824
+     *     google/container/v1beta1/cluster_service.proto;l=1828
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -18811,7 +18393,18 @@ public Cluster parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new Cluster(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterAutoscaling.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterAutoscaling.java
index 0e681f22..de5c14b1 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterAutoscaling.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterAutoscaling.java
@@ -57,104 +57,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ClusterAutoscaling(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enableNodeAutoprovisioning_ = input.readBool();
-              break;
-            }
-          case 18:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                resourceLimits_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              resourceLimits_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.ResourceLimit.parser(), extensionRegistry));
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              autoscalingProfile_ = rawValue;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1beta1.AutoprovisioningNodePoolDefaults.Builder subBuilder =
-                  null;
-              if (autoprovisioningNodePoolDefaults_ != null) {
-                subBuilder = autoprovisioningNodePoolDefaults_.toBuilder();
-              }
-              autoprovisioningNodePoolDefaults_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.AutoprovisioningNodePoolDefaults.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(autoprovisioningNodePoolDefaults_);
-                autoprovisioningNodePoolDefaults_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                autoprovisioningLocations_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              autoprovisioningLocations_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        resourceLimits_ = java.util.Collections.unmodifiableList(resourceLimits_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        autoprovisioningLocations_ = autoprovisioningLocations_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ClusterAutoscaling_descriptor;
@@ -625,7 +527,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       com.google.protobuf.GeneratedMessageV3.writeString(
           output, 5, autoprovisioningLocations_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -658,7 +560,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getAutoprovisioningLocationsList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -685,7 +587,7 @@ public boolean equals(final java.lang.Object obj) {
     }
     if (!getAutoprovisioningLocationsList().equals(other.getAutoprovisioningLocationsList()))
       return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -712,7 +614,7 @@ public int hashCode() {
       hash = (37 * hash) + AUTOPROVISIONING_LOCATIONS_FIELD_NUMBER;
       hash = (53 * hash) + getAutoprovisioningLocationsList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -844,19 +746,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ClusterAutoscaling.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getResourceLimitsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -866,10 +759,11 @@ public Builder clear() {
 
       if (resourceLimitsBuilder_ == null) {
         resourceLimits_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        resourceLimits_ = null;
         resourceLimitsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       autoscalingProfile_ = 0;
 
       if (autoprovisioningNodePoolDefaultsBuilder_ == null) {
@@ -1025,7 +919,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ClusterAutoscaling other)
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1040,17 +934,71 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ClusterAutoscaling parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enableNodeAutoprovisioning_ = input.readBool();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                com.google.container.v1beta1.ResourceLimit m =
+                    input.readMessage(
+                        com.google.container.v1beta1.ResourceLimit.parser(), extensionRegistry);
+                if (resourceLimitsBuilder_ == null) {
+                  ensureResourceLimitsIsMutable();
+                  resourceLimits_.add(m);
+                } else {
+                  resourceLimitsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 18
+            case 24:
+              {
+                autoscalingProfile_ = input.readEnum();
+
+                break;
+              } // case 24
+            case 34:
+              {
+                input.readMessage(
+                    getAutoprovisioningNodePoolDefaultsFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureAutoprovisioningLocationsIsMutable();
+                autoprovisioningLocations_.add(s);
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ClusterAutoscaling) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2027,7 +1975,18 @@ public ClusterAutoscaling parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ClusterAutoscaling(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterOrBuilder.java
index de7e9556..98a9631d 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterOrBuilder.java
@@ -101,7 +101,7 @@ public interface ClusterOrBuilder
    * int32 initial_node_count = 3 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.initial_node_count is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1551
+   *     google/container/v1beta1/cluster_service.proto;l=1555
    * @return The initialNodeCount.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface ClusterOrBuilder
    * .google.container.v1beta1.NodeConfig node_config = 4 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.node_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1564
+   *     google/container/v1beta1/cluster_service.proto;l=1568
    * @return Whether the nodeConfig field is set.
    */
   @java.lang.Deprecated
@@ -150,7 +150,7 @@ public interface ClusterOrBuilder
    * .google.container.v1beta1.NodeConfig node_config = 4 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.node_config is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1564
+   *     google/container/v1beta1/cluster_service.proto;l=1568
    * @return The nodeConfig.
    */
   @java.lang.Deprecated
@@ -1024,7 +1024,7 @@ java.lang.String getResourceLabelsOrDefault(
    * bool private_cluster = 28 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.private_cluster is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1686
+   *     google/container/v1beta1/cluster_service.proto;l=1690
    * @return The privateCluster.
    */
   @java.lang.Deprecated
@@ -1044,7 +1044,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string master_ipv4_cidr_block = 29 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.master_ipv4_cidr_block is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1693
+   *     google/container/v1beta1/cluster_service.proto;l=1697
    * @return The masterIpv4CidrBlock.
    */
   @java.lang.Deprecated
@@ -1063,7 +1063,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string master_ipv4_cidr_block = 29 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.master_ipv4_cidr_block is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1693
+   *     google/container/v1beta1/cluster_service.proto;l=1697
    * @return The bytes for masterIpv4CidrBlock.
    */
   @java.lang.Deprecated
@@ -1730,7 +1730,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string zone = 101 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1759
+   *     google/container/v1beta1/cluster_service.proto;l=1763
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -1747,7 +1747,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string zone = 101 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1759
+   *     google/container/v1beta1/cluster_service.proto;l=1763
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -1870,7 +1870,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string current_node_version = 105 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.current_node_version is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1792
+   *     google/container/v1beta1/cluster_service.proto;l=1796
    * @return The currentNodeVersion.
    */
   @java.lang.Deprecated
@@ -1889,7 +1889,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string current_node_version = 105 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.current_node_version is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1792
+   *     google/container/v1beta1/cluster_service.proto;l=1796
    * @return The bytes for currentNodeVersion.
    */
   @java.lang.Deprecated
@@ -1959,7 +1959,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string status_message = 108 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1804
+   *     google/container/v1beta1/cluster_service.proto;l=1808
    * @return The statusMessage.
    */
   @java.lang.Deprecated
@@ -1976,7 +1976,7 @@ java.lang.String getResourceLabelsOrDefault(
    * string status_message = 108 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1804
+   *     google/container/v1beta1/cluster_service.proto;l=1808
    * @return The bytes for statusMessage.
    */
   @java.lang.Deprecated
@@ -2041,7 +2041,7 @@ java.lang.String getResourceLabelsOrDefault(
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1820
+   *     google/container/v1beta1/cluster_service.proto;l=1824
    * @return A list containing the instanceGroupUrls.
    */
   @java.lang.Deprecated
@@ -2056,7 +2056,7 @@ java.lang.String getResourceLabelsOrDefault(
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1820
+   *     google/container/v1beta1/cluster_service.proto;l=1824
    * @return The count of instanceGroupUrls.
    */
   @java.lang.Deprecated
@@ -2071,7 +2071,7 @@ java.lang.String getResourceLabelsOrDefault(
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1820
+   *     google/container/v1beta1/cluster_service.proto;l=1824
    * @param index The index of the element to return.
    * @return The instanceGroupUrls at the given index.
    */
@@ -2087,7 +2087,7 @@ java.lang.String getResourceLabelsOrDefault(
    * repeated string instance_group_urls = 111 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.instance_group_urls is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1820
+   *     google/container/v1beta1/cluster_service.proto;l=1824
    * @param index The index of the value to return.
    * @return The bytes of the instanceGroupUrls at the given index.
    */
@@ -2105,7 +2105,7 @@ java.lang.String getResourceLabelsOrDefault(
    * int32 current_node_count = 112 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Cluster.current_node_count is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1824
+   *     google/container/v1beta1/cluster_service.proto;l=1828
    * @return The currentNodeCount.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterServiceProto.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterServiceProto.java
index 18cf50bd..0dce8936 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterServiceProto.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterServiceProto.java
@@ -699,6 +699,14 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_container_v1beta1_MonitoringConfig_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_container_v1beta1_MonitoringConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_container_v1beta1_NodePoolLoggingConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_container_v1beta1_NodePoolLoggingConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_container_v1beta1_LoggingVariantConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_container_v1beta1_LoggingVariantConfig_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_container_v1beta1_MonitoringComponentConfig_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
@@ -733,7 +741,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "ger_policy\030\001 \001(\t\0221\n\rcpu_cfs_quota\030\002 \001(\0132"
           + "\032.google.protobuf.BoolValue\022\034\n\024cpu_cfs_q"
           + "uota_period\030\003 \001(\t\022\026\n\016pod_pids_limit\030\004 \001("
-          + "\003\"\245\013\n\nNodeConfig\022\024\n\014machine_type\030\001 \001(\t\022\024"
+          + "\003\"\356\013\n\nNodeConfig\022\024\n\014machine_type\030\001 \001(\t\022\024"
           + "\n\014disk_size_gb\030\002 \001(\005\022\024\n\014oauth_scopes\030\003 \003"
           + "(\t\022\027\n\017service_account\030\t \001(\t\022D\n\010metadata\030"
           + "\004 \003(\01322.google.container.v1beta1.NodeCon"
@@ -766,1116 +774,1131 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "chineFeatures\0223\n\005gvnic\030\035 \001(\0132$.google.co"
           + "ntainer.v1beta1.VirtualNIC\022\014\n\004spot\030  \001(\010"
           + "\022G\n\022confidential_nodes\030# \001(\0132+.google.co"
-          + "ntainer.v1beta1.ConfidentialNodes\032/\n\rMet"
-          + "adataEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t:\002"
-          + "8\001\032-\n\013LabelsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030"
-          + "\002 \001(\t:\0028\001\"M\n\027AdvancedMachineFeatures\022\035\n\020"
-          + "threads_per_core\030\001 \001(\003H\000\210\001\001B\023\n\021_threads_"
-          + "per_core\"\355\004\n\021NodeNetworkConfig\022\035\n\020create"
-          + "_pod_range\030\004 \001(\010B\003\340A\004\022\021\n\tpod_range\030\005 \001(\t"
-          + "\022\033\n\023pod_ipv4_cidr_block\030\006 \001(\t\022m\n\032network"
-          + "_performance_config\030\013 \001(\0132D.google.conta"
-          + "iner.v1beta1.NodeNetworkConfig.NetworkPe"
-          + "rformanceConfigH\000\210\001\001\032\372\002\n\030NetworkPerforma"
-          + "nceConfig\022s\n\033total_egress_bandwidth_tier"
-          + "\030\001 \001(\0162I.google.container.v1beta1.NodeNe"
-          + "tworkConfig.NetworkPerformanceConfig.Tie"
-          + "rH\000\210\001\001\022y\n!external_ip_egress_bandwidth_t"
-          + "ier\030\002 \001(\0162I.google.container.v1beta1.Nod"
-          + "eNetworkConfig.NetworkPerformanceConfig."
-          + "TierH\001\210\001\001\"(\n\004Tier\022\024\n\020TIER_UNSPECIFIED\020\000\022"
-          + "\n\n\006TIER_1\020\001B\036\n\034_total_egress_bandwidth_t"
-          + "ierB$\n\"_external_ip_egress_bandwidth_tie"
-          + "rB\035\n\033_network_performance_config\"Y\n\026Shie"
-          + "ldedInstanceConfig\022\032\n\022enable_secure_boot"
-          + "\030\001 \001(\010\022#\n\033enable_integrity_monitoring\030\002 "
-          + "\001(\010\"\212\001\n\rSandboxConfig\022\030\n\014sandbox_type\030\001 "
-          + "\001(\tB\002\030\001\022:\n\004type\030\002 \001(\0162,.google.container"
-          + ".v1beta1.SandboxConfig.Type\"#\n\004Type\022\017\n\013U"
-          + "NSPECIFIED\020\000\022\n\n\006GVISOR\020\001\"1\n\026EphemeralSto"
-          + "rageConfig\022\027\n\017local_ssd_count\030\001 \001(\005\"\035\n\nG"
-          + "cfsConfig\022\017\n\007enabled\030\001 \001(\010\"\344\001\n\023Reservati"
-          + "onAffinity\022T\n\030consume_reservation_type\030\001"
-          + " \001(\01622.google.container.v1beta1.Reservat"
-          + "ionAffinity.Type\022\013\n\003key\030\002 \001(\t\022\016\n\006values\030"
-          + "\003 \003(\t\"Z\n\004Type\022\017\n\013UNSPECIFIED\020\000\022\022\n\016NO_RES"
-          + "ERVATION\020\001\022\023\n\017ANY_RESERVATION\020\002\022\030\n\024SPECI"
-          + "FIC_RESERVATION\020\003\"\276\001\n\tNodeTaint\022\013\n\003key\030\001"
-          + " \001(\t\022\r\n\005value\030\002 \001(\t\022:\n\006effect\030\003 \001(\0162*.go"
-          + "ogle.container.v1beta1.NodeTaint.Effect\""
-          + "Y\n\006Effect\022\026\n\022EFFECT_UNSPECIFIED\020\000\022\017\n\013NO_"
-          + "SCHEDULE\020\001\022\026\n\022PREFER_NO_SCHEDULE\020\002\022\016\n\nNO"
-          + "_EXECUTE\020\003\"A\n\nNodeTaints\0223\n\006taints\030\001 \003(\013"
-          + "2#.google.container.v1beta1.NodeTaint\"}\n"
-          + "\nNodeLabels\022@\n\006labels\030\001 \003(\01320.google.con"
-          + "tainer.v1beta1.NodeLabels.LabelsEntry\032-\n"
-          + "\013LabelsEntry\022\013\n\003key\030\001 \001(\t\022\r\n\005value\030\002 \001(\t"
-          + ":\0028\001\"\033\n\013NetworkTags\022\014\n\004tags\030\001 \003(\t\"\336\001\n\nMa"
-          + "sterAuth\022\024\n\010username\030\001 \001(\tB\002\030\001\022\024\n\010passwo"
-          + "rd\030\002 \001(\tB\002\030\001\022T\n\031client_certificate_confi"
-          + "g\030\003 \001(\01321.google.container.v1beta1.Clien"
-          + "tCertificateConfig\022\036\n\026cluster_ca_certifi"
-          + "cate\030d \001(\t\022\032\n\022client_certificate\030e \001(\t\022\022"
-          + "\n\nclient_key\030f \001(\t\";\n\027ClientCertificateC"
-          + "onfig\022 \n\030issue_client_certificate\030\001 \001(\010\""
-          + "\305\007\n\014AddonsConfig\022H\n\023http_load_balancing\030"
-          + "\001 \001(\0132+.google.container.v1beta1.HttpLoa"
-          + "dBalancing\022V\n\032horizontal_pod_autoscaling"
-          + "\030\002 \001(\01322.google.container.v1beta1.Horizo"
-          + "ntalPodAutoscaling\022O\n\024kubernetes_dashboa"
-          + "rd\030\003 \001(\0132-.google.container.v1beta1.Kube"
-          + "rnetesDashboardB\002\030\001\022L\n\025network_policy_co"
-          + "nfig\030\004 \001(\0132-.google.container.v1beta1.Ne"
-          + "tworkPolicyConfig\022?\n\014istio_config\030\005 \001(\0132"
-          + "%.google.container.v1beta1.IstioConfigB\002"
-          + "\030\001\022B\n\020cloud_run_config\030\007 \001(\0132(.google.co"
-          + "ntainer.v1beta1.CloudRunConfig\022B\n\020dns_ca"
-          + "che_config\030\010 \001(\0132(.google.container.v1be"
-          + "ta1.DnsCacheConfig\022P\n\027config_connector_c"
-          + "onfig\030\n \001(\0132/.google.container.v1beta1.C"
-          + "onfigConnectorConfig\022i\n%gce_persistent_d"
-          + "isk_csi_driver_config\030\013 \001(\0132:.google.con"
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-          + "peration\"\241\001\202\323\344\223\002\232\001\"?/v1beta1/{name=proje"
-          + "cts/*/locations/*/clusters/*}:setMasterA"
-          + "uth:\001*ZT\"O/v1beta1/projects/{project_id}"
-          + "/zones/{zone}/clusters/{cluster_id}:setM"
-          + "asterAuth:\001*\022\202\002\n\rDeleteCluster\022..google."
-          + "container.v1beta1.DeleteClusterRequest\032#"
-          + ".google.container.v1beta1.Operation\"\233\001\202\323"
-          + "\344\223\002x*1/v1beta1/{name=projects/*/location"
-          + "s/*/clusters/*}ZC*A/v1beta1/projects/{pr"
-          + "oject_id}/zones/{zone}/clusters/{cluster"
-          + "_id}\332A\032project_id,zone,cluster_id\022\375\001\n\016Li"
-          + "stOperations\022/.google.container.v1beta1."
-          + "ListOperationsRequest\0320.google.container"
-          + ".v1beta1.ListOperationsResponse\"\207\001\202\323\344\223\002o"
-          + "\0223/v1beta1/{parent=projects/*/locations/"
-          + "*}/operationsZ8\0226/v1beta1/projects/{proj"
-          + "ect_id}/zones/{zone}/operations\332A\017projec"
-          + "t_id,zone\022\210\002\n\014GetOperation\022-.google.cont"
-          + "ainer.v1beta1.GetOperationRequest\032#.goog"
-          + "le.container.v1beta1.Operation\"\243\001\202\323\344\223\002~\022"
-          + "3/v1beta1/{name=projects/*/locations/*/o"
-          + "perations/*}ZG\022E/v1beta1/projects/{proje"
-          + "ct_id}/zones/{zone}/operations/{operatio"
-          + "n_id}\332A\034project_id,zone,operation_id\022\226\002\n"
-          + "\017CancelOperation\0220.google.container.v1be"
-          + "ta1.CancelOperationRequest\032\026.google.prot"
-          + "obuf.Empty\"\270\001\202\323\344\223\002\222\001\":/v1beta1/{name=pro"
-          + "jects/*/locations/*/operations/*}:cancel"
+          + "ters/{cluster_id}/nodePools/{node_pool_i"
+          + "d}/autoscaling:\001*\022\264\002\n\021SetLoggingService\022"
+          + "2.google.container.v1beta1.SetLoggingSer"
+          + "viceRequest\032#.google.container.v1beta1.O"
+          + "peration\"\305\001\202\323\344\223\002\221\001\"/v1beta"
+          + "1/{name=projects/*/locations/*/clusters/"
+          + "*}:setLocations:\001*ZP\"K/v1beta1/projects/"
           + "{project_id}/zones/{zone}/clusters/{clus"
-          + "ter_id}/nodePools/{node_pool_id}:rollbac"
-          + "k:\001*\332A\'project_id,zone,cluster_id,node_p"
-          + "ool_id\022\362\002\n\025SetNodePoolManagement\0226.googl"
-          + "e.container.v1beta1.SetNodePoolManagemen"
-          + "tRequest\032#.google.container.v1beta1.Oper"
-          + "ation\"\373\001\202\323\344\223\002\277\001\"K/v1beta1/{name=projects"
-          + "/*/locations/*/clusters/*/nodePools/*}:s"
-          + "etManagement:\001*Zm\"h/v1beta1/projects/{pr"
-          + "oject_id}/zones/{zone}/clusters/{cluster"
-          + "_id}/nodePools/{node_pool_id}/setManagem"
-          + "ent:\001*\332A2project_id,zone,cluster_id,node"
-          + "_pool_id,management\022\304\002\n\tSetLabels\022*.goog"
-          + "le.container.v1beta1.SetLabelsRequest\032#."
-          + "google.container.v1beta1.Operation\"\345\001\202\323\344"
-          + "\223\002\237\001\"C/v1beta1/{name=projects/*/location"
-          + "s/*/clusters/*}:setResourceLabels:\001*ZU\"P"
-          + "/v1beta1/projects/{project_id}/zones/{zo"
-          + "ne}/clusters/{cluster_id}/resourceLabels"
-          + ":\001*\332A/v1beta1/{name=projects/*/lo"
+          + "cations/*/clusters/*}:updateMaster:\001*ZM\""
+          + "H/v1beta1/projects/{project_id}/zones/{z"
+          + "one}/clusters/{cluster_id}/master:\001*\332A)p"
+          + "roject_id,zone,cluster_id,master_version"
+          + "\022\210\002\n\rSetMasterAuth\022..google.container.v1"
+          + "beta1.SetMasterAuthRequest\032#.google.cont"
+          + "ainer.v1beta1.Operation\"\241\001\202\323\344\223\002\232\001\"?/v1be"
+          + "ta1/{name=projects/*/locations/*/cluster"
+          + "s/*}:setMasterAuth:\001*ZT\"O/v1beta1/projec"
+          + "ts/{project_id}/zones/{zone}/clusters/{c"
+          + "luster_id}:setMasterAuth:\001*\022\202\002\n\rDeleteCl"
+          + "uster\022..google.container.v1beta1.DeleteC"
+          + "lusterRequest\032#.google.container.v1beta1"
+          + ".Operation\"\233\001\202\323\344\223\002x*1/v1beta1/{name=proj"
+          + "ects/*/locations/*/clusters/*}ZC*A/v1bet"
+          + "a1/projects/{project_id}/zones/{zone}/cl"
+          + "usters/{cluster_id}\332A\032project_id,zone,cl"
+          + "uster_id\022\375\001\n\016ListOperations\022/.google.con"
+          + "tainer.v1beta1.ListOperationsRequest\0320.g"
+          + "oogle.container.v1beta1.ListOperationsRe"
+          + "sponse\"\207\001\202\323\344\223\002o\0223/v1beta1/{parent=projec"
+          + "ts/*/locations/*}/operationsZ8\0226/v1beta1"
+          + "/projects/{project_id}/zones/{zone}/oper"
+          + "ations\332A\017project_id,zone\022\210\002\n\014GetOperatio"
+          + "n\022-.google.container.v1beta1.GetOperatio"
+          + "nRequest\032#.google.container.v1beta1.Oper"
+          + "ation\"\243\001\202\323\344\223\002~\0223/v1beta1/{name=projects/"
+          + "*/locations/*/operations/*}ZG\022E/v1beta1/"
+          + "projects/{project_id}/zones/{zone}/opera"
+          + "tions/{operation_id}\332A\034project_id,zone,o"
+          + "peration_id\022\226\002\n\017CancelOperation\0220.google"
+          + ".container.v1beta1.CancelOperationReques"
+          + "t\032\026.google.protobuf.Empty\"\270\001\202\323\344\223\002\222\001\":/v1"
+          + "beta1/{name=projects/*/locations/*/opera"
+          + "tions/*}:cancel:\001*ZQ\"L/v1beta1/projects/"
+          + "{project_id}/zones/{zone}/operations/{op"
+          + "eration_id}:cancel:\001*\332A\034project_id,zone,"
+          + "operation_id\022\367\001\n\017GetServerConfig\0220.googl"
+          + "e.container.v1beta1.GetServerConfigReque"
+          + "st\032&.google.container.v1beta1.ServerConf"
+          + "ig\"\211\001\202\323\344\223\002q\0223/v1beta1/{name=projects/*/l"
+          + "ocations/*}/serverConfigZ:\0228/v1beta1/pro"
+          + "jects/{project_id}/zones/{zone}/serverco"
+          + "nfig\332A\017project_id,zone\022\245\002\n\rListNodePools"
+          + "\022..google.container.v1beta1.ListNodePool"
+          + "sRequest\032/.google.container.v1beta1.List"
+          + "NodePoolsResponse\"\262\001\202\323\344\223\002\216\001\022=/v1beta1/{p"
+          + "arent=projects/*/locations/*/clusters/*}"
+          + "/nodePoolsZM\022K/v1beta1/projects/{project"
+          + "_id}/zones/{zone}/clusters/{cluster_id}/"
+          + "nodePools\332A\032project_id,zone,cluster_id\022\265"
+          + "\001\n\016GetJSONWebKeys\022/.google.container.v1b"
+          + "eta1.GetJSONWebKeysRequest\0320.google.cont"
+          + "ainer.v1beta1.GetJSONWebKeysResponse\"@\202\323"
+          + "\344\223\002:\0228/v1beta1/{parent=projects/*/locati"
+          + "ons/*/clusters/*}/jwks\022\260\002\n\013GetNodePool\022,"
+          + ".google.container.v1beta1.GetNodePoolReq"
+          + "uest\032\".google.container.v1beta1.NodePool"
+          + "\"\316\001\202\323\344\223\002\235\001\022=/v1beta1/{name=projects/*/lo"
+          + "cations/*/clusters/*/nodePools/*}Z\\\022Z/v1"
+          + "beta1/projects/{project_id}/zones/{zone}"
+          + "/clusters/{cluster_id}/nodePools/{node_p"
+          + "ool_id}\332A\'project_id,zone,cluster_id,nod"
+          + "e_pool_id\022\253\002\n\016CreateNodePool\022/.google.co"
+          + "ntainer.v1beta1.CreateNodePoolRequest\032#."
           + "google.container.v1beta1.Operation\"\302\001\202\323\344"
-          + "\223\002\236\001\"A/v1beta1/{name=projects/*/location"
-          + "s/*/clusters/*}:startIpRotation:\001*ZV\"Q/v"
-          + "1beta1/projects/{project_id}/zones/{zone"
-          + "}/clusters/{cluster_id}:startIpRotation:"
-          + "\001*\332A\032project_id,zone,cluster_id\022\271\002\n\022Comp"
-          + "leteIPRotation\0223.google.container.v1beta"
-          + "1.CompleteIPRotationRequest\032#.google.con"
-          + "tainer.v1beta1.Operation\"\310\001\202\323\344\223\002\244\001\"D/v1b"
+          + "\223\002\224\001\"=/v1beta1/{parent=projects/*/locati"
+          + "ons/*/clusters/*}/nodePools:\001*ZP\"K/v1bet"
+          + "a1/projects/{project_id}/zones/{zone}/cl"
+          + "usters/{cluster_id}/nodePools:\001*\332A$proje"
+          + "ct_id,zone,cluster_id,node_pool\022\267\002\n\016Dele"
+          + "teNodePool\022/.google.container.v1beta1.De"
+          + "leteNodePoolRequest\032#.google.container.v"
+          + "1beta1.Operation\"\316\001\202\323\344\223\002\235\001*=/v1beta1/{na"
+          + "me=projects/*/locations/*/clusters/*/nod"
+          + "ePools/*}Z\\*Z/v1beta1/projects/{project_"
+          + "id}/zones/{zone}/clusters/{cluster_id}/n"
+          + "odePools/{node_pool_id}\332A\'project_id,zon"
+          + "e,cluster_id,node_pool_id\022\305\001\n\027CompleteNo"
+          + "dePoolUpgrade\0228.google.container.v1beta1"
+          + ".CompleteNodePoolUpgradeRequest\032\026.google"
+          + ".protobuf.Empty\"X\202\323\344\223\002R\"M/v1beta1/{name="
+          + "projects/*/locations/*/clusters/*/nodePo"
+          + "ols/*}:completeUpgrade:\001*\022\341\002\n\027RollbackNo"
+          + "dePoolUpgrade\0228.google.container.v1beta1"
+          + ".RollbackNodePoolUpgradeRequest\032#.google"
+          + ".container.v1beta1.Operation\"\346\001\202\323\344\223\002\265\001\"F"
+          + "/v1beta1/{name=projects/*/locations/*/cl"
+          + "usters/*/nodePools/*}:rollback:\001*Zh\"c/v1"
+          + "beta1/projects/{project_id}/zones/{zone}"
+          + "/clusters/{cluster_id}/nodePools/{node_p"
+          + "ool_id}:rollback:\001*\332A\'project_id,zone,cl"
+          + "uster_id,node_pool_id\022\362\002\n\025SetNodePoolMan"
+          + "agement\0226.google.container.v1beta1.SetNo"
+          + "dePoolManagementRequest\032#.google.contain"
+          + "er.v1beta1.Operation\"\373\001\202\323\344\223\002\277\001\"K/v1beta1"
+          + "/{name=projects/*/locations/*/clusters/*"
+          + "/nodePools/*}:setManagement:\001*Zm\"h/v1bet"
+          + "a1/projects/{project_id}/zones/{zone}/cl"
+          + "usters/{cluster_id}/nodePools/{node_pool"
+          + "_id}/setManagement:\001*\332A2project_id,zone,"
+          + "cluster_id,node_pool_id,management\022\304\002\n\tS"
+          + "etLabels\022*.google.container.v1beta1.SetL"
+          + "abelsRequest\032#.google.container.v1beta1."
+          + "Operation\"\345\001\202\323\344\223\002\237\001\"C/v1beta1/{name=proj"
+          + "ects/*/locations/*/clusters/*}:setResour"
+          + "ceLabels:\001*ZU\"P/v1beta1/projects/{projec"
+          + "t_id}/zones/{zone}/clusters/{cluster_id}"
+          + "/resourceLabels:\001*\332A
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   * 
+   *
+   * @return Whether the desiredNodePoolLoggingConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasDesiredNodePoolLoggingConfig() {
+    return desiredNodePoolLoggingConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   * 
+   *
+   * @return The desiredNodePoolLoggingConfig.
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.NodePoolLoggingConfig getDesiredNodePoolLoggingConfig() {
+    return desiredNodePoolLoggingConfig_ == null
+        ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+        : desiredNodePoolLoggingConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   * 
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder
+      getDesiredNodePoolLoggingConfigOrBuilder() {
+    return getDesiredNodePoolLoggingConfig();
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -3095,7 +2498,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeMessage(112, getDesiredProtectConfig());
     }
-    unknownFields.writeTo(output);
+    if (desiredNodePoolLoggingConfig_ != null) {
+      output.writeMessage(116, getDesiredNodePoolLoggingConfig());
+    }
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -3295,7 +2701,12 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(112, getDesiredProtectConfig());
     }
-    size += unknownFields.getSerializedSize();
+    if (desiredNodePoolLoggingConfig_ != null) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              116, getDesiredNodePoolLoggingConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -3481,7 +2892,12 @@ public boolean equals(final java.lang.Object obj) {
     if (hasDesiredProtectConfig()) {
       if (!getDesiredProtectConfig().equals(other.getDesiredProtectConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (hasDesiredNodePoolLoggingConfig() != other.hasDesiredNodePoolLoggingConfig()) return false;
+    if (hasDesiredNodePoolLoggingConfig()) {
+      if (!getDesiredNodePoolLoggingConfig().equals(other.getDesiredNodePoolLoggingConfig()))
+        return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -3644,7 +3060,11 @@ public int hashCode() {
       hash = (37 * hash) + DESIRED_PROTECT_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getDesiredProtectConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    if (hasDesiredNodePoolLoggingConfig()) {
+      hash = (37 * hash) + DESIRED_NODE_POOL_LOGGING_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getDesiredNodePoolLoggingConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -4009,6 +3429,12 @@ public Builder clear() {
         desiredProtectConfigBuilder_.clear();
       }
       bitField0_ = (bitField0_ & ~0x00000002);
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        desiredNodePoolLoggingConfig_ = null;
+      } else {
+        desiredNodePoolLoggingConfig_ = null;
+        desiredNodePoolLoggingConfigBuilder_ = null;
+      }
       return this;
     }
 
@@ -4221,6 +3647,11 @@ public com.google.container.v1beta1.ClusterUpdate buildPartial() {
         }
         to_bitField0_ |= 0x00000001;
       }
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        result.desiredNodePoolLoggingConfig_ = desiredNodePoolLoggingConfig_;
+      } else {
+        result.desiredNodePoolLoggingConfig_ = desiredNodePoolLoggingConfigBuilder_.build();
+      }
       result.bitField0_ = to_bitField0_;
       onBuilt();
       return result;
@@ -4411,7 +3842,10 @@ public Builder mergeFrom(com.google.container.v1beta1.ClusterUpdate other) {
       if (other.hasDesiredProtectConfig()) {
         mergeDesiredProtectConfig(other.getDesiredProtectConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      if (other.hasDesiredNodePoolLoggingConfig()) {
+        mergeDesiredNodePoolLoggingConfig(other.getDesiredNodePoolLoggingConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -4426,17 +3860,330 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ClusterUpdate parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 34:
+              {
+                desiredNodeVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                desiredMonitoringService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                input.readMessage(
+                    getDesiredAddonsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 50
+            case 58:
+              {
+                desiredNodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                desiredImageType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 74:
+              {
+                input.readMessage(
+                    getDesiredNodePoolAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 74
+            case 82:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureDesiredLocationsIsMutable();
+                desiredLocations_.add(s);
+                break;
+              } // case 82
+            case 98:
+              {
+                input.readMessage(
+                    getDesiredMasterAuthorizedNetworksConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 98
+            case 114:
+              {
+                input.readMessage(
+                    getDesiredPodSecurityPolicyConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 114
+            case 122:
+              {
+                input.readMessage(
+                    getDesiredClusterAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 122
+            case 130:
+              {
+                input.readMessage(
+                    getDesiredBinaryAuthorizationFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 130
+            case 154:
+              {
+                desiredLoggingService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 154
+            case 170:
+              {
+                input.readMessage(
+                    getDesiredResourceUsageExportConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 170
+            case 178:
+              {
+                input.readMessage(
+                    getDesiredVerticalPodAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 178
+            case 202:
+              {
+                input.readMessage(
+                    getDesiredPrivateClusterConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 202
+            case 210:
+              {
+                input.readMessage(
+                    getDesiredIntraNodeVisibilityConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 210
+            case 226:
+              {
+                input.readMessage(
+                    getDesiredDefaultSnatStatusFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 226
+            case 242:
+              {
+                input.readMessage(
+                    getDesiredClusterTelemetryFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 242
+            case 250:
+              {
+                input.readMessage(
+                    getDesiredReleaseChannelFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 250
+            case 306:
+              {
+                input.readMessage(
+                    getDesiredTpuConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 306
+            case 314:
+              {
+                input.readMessage(
+                    getDesiredL4IlbSubsettingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 314
+            case 370:
+              {
+                input.readMessage(
+                    getDesiredDatabaseEncryptionFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 370
+            case 378:
+              {
+                input.readMessage(
+                    getDesiredWorkloadIdentityConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 378
+            case 386:
+              {
+                input.readMessage(
+                    getDesiredShieldedNodesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 386
+            case 394:
+              {
+                input.readMessage(
+                    getDesiredCostManagementConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 394
+            case 400:
+              {
+                desiredDatapathProvider_ = input.readEnum();
+
+                break;
+              } // case 400
+            case 408:
+              {
+                desiredPrivateIpv6GoogleAccess_ = input.readEnum();
+
+                break;
+              } // case 408
+            case 418:
+              {
+                input.readMessage(getDesiredMasterFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 418
+            case 426:
+              {
+                input.readMessage(
+                    getDesiredDnsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 426
+            case 442:
+              {
+                input.readMessage(
+                    getDesiredNotificationConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 442
+            case 482:
+              {
+                input.readMessage(
+                    getDesiredServiceExternalIpsConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 482
+            case 490:
+              {
+                input.readMessage(
+                    getDesiredWorkloadCertificatesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 490
+            case 498:
+              {
+                input.readMessage(
+                    getDesiredWorkloadAltsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 498
+            case 506:
+              {
+                input.readMessage(
+                    getDesiredAuthenticatorGroupsConfigFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 506
+            case 514:
+              {
+                input.readMessage(
+                    getDesiredLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 514
+            case 522:
+              {
+                input.readMessage(
+                    getDesiredMonitoringConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 522
+            case 530:
+              {
+                input.readMessage(
+                    getDesiredIdentityServiceConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 530
+            case 538:
+              {
+                input.readMessage(
+                    getDesiredMeshCertificatesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 538
+            case 802:
+              {
+                desiredMasterVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 802
+            case 874:
+              {
+                input.readMessage(
+                    getDesiredGcfsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 874
+            case 882:
+              {
+                input.readMessage(
+                    getDesiredNodePoolAutoConfigNetworkTagsFieldBuilder().getBuilder(),
+                    extensionRegistry);
+
+                break;
+              } // case 882
+            case 898:
+              {
+                input.readMessage(
+                    getDesiredProtectConfigFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 898
+            case 930:
+              {
+                input.readMessage(
+                    getDesiredNodePoolLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 930
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ClusterUpdate) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -12188,6 +11935,206 @@ public com.google.container.v1beta1.ProtectConfigOrBuilder getDesiredProtectConf
       return desiredProtectConfigBuilder_;
     }
 
+    private com.google.container.v1beta1.NodePoolLoggingConfig desiredNodePoolLoggingConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1beta1.NodePoolLoggingConfig,
+            com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>
+        desiredNodePoolLoggingConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     *
+     * @return Whether the desiredNodePoolLoggingConfig field is set.
+     */
+    public boolean hasDesiredNodePoolLoggingConfig() {
+      return desiredNodePoolLoggingConfigBuilder_ != null || desiredNodePoolLoggingConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     *
+     * @return The desiredNodePoolLoggingConfig.
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfig getDesiredNodePoolLoggingConfig() {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        return desiredNodePoolLoggingConfig_ == null
+            ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+            : desiredNodePoolLoggingConfig_;
+      } else {
+        return desiredNodePoolLoggingConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public Builder setDesiredNodePoolLoggingConfig(
+        com.google.container.v1beta1.NodePoolLoggingConfig value) {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        desiredNodePoolLoggingConfig_ = value;
+        onChanged();
+      } else {
+        desiredNodePoolLoggingConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public Builder setDesiredNodePoolLoggingConfig(
+        com.google.container.v1beta1.NodePoolLoggingConfig.Builder builderForValue) {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        desiredNodePoolLoggingConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        desiredNodePoolLoggingConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public Builder mergeDesiredNodePoolLoggingConfig(
+        com.google.container.v1beta1.NodePoolLoggingConfig value) {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        if (desiredNodePoolLoggingConfig_ != null) {
+          desiredNodePoolLoggingConfig_ =
+              com.google.container.v1beta1.NodePoolLoggingConfig.newBuilder(
+                      desiredNodePoolLoggingConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          desiredNodePoolLoggingConfig_ = value;
+        }
+        onChanged();
+      } else {
+        desiredNodePoolLoggingConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public Builder clearDesiredNodePoolLoggingConfig() {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        desiredNodePoolLoggingConfig_ = null;
+        onChanged();
+      } else {
+        desiredNodePoolLoggingConfig_ = null;
+        desiredNodePoolLoggingConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfig.Builder
+        getDesiredNodePoolLoggingConfigBuilder() {
+
+      onChanged();
+      return getDesiredNodePoolLoggingConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder
+        getDesiredNodePoolLoggingConfigOrBuilder() {
+      if (desiredNodePoolLoggingConfigBuilder_ != null) {
+        return desiredNodePoolLoggingConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return desiredNodePoolLoggingConfig_ == null
+            ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+            : desiredNodePoolLoggingConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The desired node pool logging configuration defaults for the cluster.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1beta1.NodePoolLoggingConfig,
+            com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>
+        getDesiredNodePoolLoggingConfigFieldBuilder() {
+      if (desiredNodePoolLoggingConfigBuilder_ == null) {
+        desiredNodePoolLoggingConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.container.v1beta1.NodePoolLoggingConfig,
+                com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+                com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>(
+                getDesiredNodePoolLoggingConfig(), getParentForChildren(), isClean());
+        desiredNodePoolLoggingConfig_ = null;
+      }
+      return desiredNodePoolLoggingConfigBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
@@ -12220,7 +12167,18 @@ public ClusterUpdate parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ClusterUpdate(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterUpdateOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterUpdateOrBuilder.java
index 2893fc49..e3028e10 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterUpdateOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ClusterUpdateOrBuilder.java
@@ -1622,4 +1622,43 @@ public interface ClusterUpdateOrBuilder
    * optional .google.container.v1beta1.ProtectConfig desired_protect_config = 112;
    */
   com.google.container.v1beta1.ProtectConfigOrBuilder getDesiredProtectConfigOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   * 
+   *
+   * @return Whether the desiredNodePoolLoggingConfig field is set.
+   */
+  boolean hasDesiredNodePoolLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   * 
+   *
+   * @return The desiredNodePoolLoggingConfig.
+   */
+  com.google.container.v1beta1.NodePoolLoggingConfig getDesiredNodePoolLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * The desired node pool logging configuration defaults for the cluster.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig desired_node_pool_logging_config = 116;
+   * 
+   */
+  com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder
+      getDesiredNodePoolLoggingConfigOrBuilder();
 }
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteIPRotationRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteIPRotationRequest.java
index 09d0762f..0e0f49b4 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteIPRotationRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteIPRotationRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CompleteIPRotationRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_CompleteIPRotationRequest_descriptor;
@@ -152,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4065
+   *     google/container/v1beta1/cluster_service.proto;l=4078
    * @return The projectId.
    */
   @java.lang.Override
@@ -181,7 +114,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4065
+   *     google/container/v1beta1/cluster_service.proto;l=4078
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -213,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4074
+   *     google/container/v1beta1/cluster_service.proto;l=4087
    * @return The zone.
    */
   @java.lang.Override
@@ -242,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4074
+   *     google/container/v1beta1/cluster_service.proto;l=4087
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -273,7 +206,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4081
+   *     google/container/v1beta1/cluster_service.proto;l=4094
    * @return The clusterId.
    */
   @java.lang.Override
@@ -301,7 +234,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4081
+   *     google/container/v1beta1/cluster_service.proto;l=4094
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -395,7 +328,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -416,7 +349,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -436,7 +369,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -455,7 +388,7 @@ public int hashCode() {
     hash = (53 * hash) + getClusterId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -585,17 +518,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.CompleteIPRotationRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -706,7 +632,7 @@ public Builder mergeFrom(com.google.container.v1beta1.CompleteIPRotationRequest
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -721,18 +647,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.CompleteIPRotationRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.CompleteIPRotationRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -750,7 +713,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4065
+     *     google/container/v1beta1/cluster_service.proto;l=4078
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -778,7 +741,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4065
+     *     google/container/v1beta1/cluster_service.proto;l=4078
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -806,7 +769,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4065
+     *     google/container/v1beta1/cluster_service.proto;l=4078
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -833,7 +796,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4065
+     *     google/container/v1beta1/cluster_service.proto;l=4078
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -856,7 +819,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4065
+     *     google/container/v1beta1/cluster_service.proto;l=4078
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -886,7 +849,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4074
+     *     google/container/v1beta1/cluster_service.proto;l=4087
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -914,7 +877,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4074
+     *     google/container/v1beta1/cluster_service.proto;l=4087
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -942,7 +905,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4074
+     *     google/container/v1beta1/cluster_service.proto;l=4087
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -969,7 +932,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4074
+     *     google/container/v1beta1/cluster_service.proto;l=4087
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -992,7 +955,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4074
+     *     google/container/v1beta1/cluster_service.proto;l=4087
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1021,7 +984,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4081
+     *     google/container/v1beta1/cluster_service.proto;l=4094
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1048,7 +1011,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4081
+     *     google/container/v1beta1/cluster_service.proto;l=4094
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1075,7 +1038,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4081
+     *     google/container/v1beta1/cluster_service.proto;l=4094
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1101,7 +1064,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4081
+     *     google/container/v1beta1/cluster_service.proto;l=4094
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1123,7 +1086,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.CompleteIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4081
+     *     google/container/v1beta1/cluster_service.proto;l=4094
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1282,7 +1245,18 @@ public CompleteIPRotationRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CompleteIPRotationRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteIPRotationRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteIPRotationRequestOrBuilder.java
index a8c3e67a..4c848056 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteIPRotationRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteIPRotationRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4065
+   *     google/container/v1beta1/cluster_service.proto;l=4078
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4065
+   *     google/container/v1beta1/cluster_service.proto;l=4078
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4074
+   *     google/container/v1beta1/cluster_service.proto;l=4087
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4074
+   *     google/container/v1beta1/cluster_service.proto;l=4087
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4081
+   *     google/container/v1beta1/cluster_service.proto;l=4094
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface CompleteIPRotationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CompleteIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4081
+   *     google/container/v1beta1/cluster_service.proto;l=4094
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteNodePoolUpgradeRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteNodePoolUpgradeRequest.java
index 25a69def..36c694fe 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteNodePoolUpgradeRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CompleteNodePoolUpgradeRequest.java
@@ -54,52 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CompleteNodePoolUpgradeRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_CompleteNodePoolUpgradeRequest_descriptor;
@@ -185,7 +139,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -197,7 +151,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -214,7 +168,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.CompleteNodePoolUpgradeRequest) obj;
 
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -227,7 +181,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -358,17 +312,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.CompleteNodePoolUpgradeRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -458,7 +405,7 @@ public Builder mergeFrom(com.google.container.v1beta1.CompleteNodePoolUpgradeReq
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -473,18 +420,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.CompleteNodePoolUpgradeRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.CompleteNodePoolUpgradeRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -636,7 +602,18 @@ public CompleteNodePoolUpgradeRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CompleteNodePoolUpgradeRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ConfidentialNodes.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ConfidentialNodes.java
index 094093d5..d91a5590 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ConfidentialNodes.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ConfidentialNodes.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ConfidentialNodes(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ConfidentialNodes_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.ConfidentialNodes) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ConfidentialNodes.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ConfidentialNodes other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,17 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ConfidentialNodes parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ConfidentialNodes) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +497,18 @@ public ConfidentialNodes parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ConfidentialNodes(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ConfigConnectorConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ConfigConnectorConfig.java
index 0d01db1a..e0b6a76e 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ConfigConnectorConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ConfigConnectorConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ConfigConnectorConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ConfigConnectorConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.ConfigConnectorConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ConfigConnectorConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -414,7 +363,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ConfigConnectorConfig othe
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -429,18 +378,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ConfigConnectorConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ConfigConnectorConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +496,18 @@ public ConfigConnectorConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ConfigConnectorConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CostManagementConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CostManagementConfig.java
index 2a6e0bb8..09b2064c 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CostManagementConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CostManagementConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CostManagementConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_CostManagementConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.CostManagementConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.CostManagementConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -414,7 +363,7 @@ public Builder mergeFrom(com.google.container.v1beta1.CostManagementConfig other
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -429,18 +378,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.CostManagementConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.CostManagementConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +496,18 @@ public CostManagementConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CostManagementConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateClusterRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateClusterRequest.java
index 89b2600a..901342d7 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateClusterRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateClusterRequest.java
@@ -54,82 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CreateClusterRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1beta1.Cluster.Builder subBuilder = null;
-              if (cluster_ != null) {
-                subBuilder = cluster_.toBuilder();
-              }
-              cluster_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.Cluster.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(cluster_);
-                cluster_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_CreateClusterRequest_descriptor;
@@ -160,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.CreateClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2307
+   *     google/container/v1beta1/cluster_service.proto;l=2317
    * @return The projectId.
    */
   @java.lang.Override
@@ -189,7 +113,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.CreateClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2307
+   *     google/container/v1beta1/cluster_service.proto;l=2317
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -221,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CreateClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2316
+   *     google/container/v1beta1/cluster_service.proto;l=2326
    * @return The zone.
    */
   @java.lang.Override
@@ -250,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CreateClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2316
+   *     google/container/v1beta1/cluster_service.proto;l=2326
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -396,7 +320,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -417,7 +341,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -440,7 +364,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getCluster().equals(other.getCluster())) return false;
     }
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -461,7 +385,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -590,17 +514,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.CreateClusterRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -718,7 +635,7 @@ public Builder mergeFrom(com.google.container.v1beta1.CreateClusterRequest other
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -733,18 +650,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.CreateClusterRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(getClusterFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 42:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.CreateClusterRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -762,7 +716,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.CreateClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2307
+     *     google/container/v1beta1/cluster_service.proto;l=2317
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -790,7 +744,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.CreateClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2307
+     *     google/container/v1beta1/cluster_service.proto;l=2317
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -818,7 +772,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.CreateClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2307
+     *     google/container/v1beta1/cluster_service.proto;l=2317
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -845,7 +799,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.CreateClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2307
+     *     google/container/v1beta1/cluster_service.proto;l=2317
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -868,7 +822,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.CreateClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2307
+     *     google/container/v1beta1/cluster_service.proto;l=2317
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -898,7 +852,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CreateClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2316
+     *     google/container/v1beta1/cluster_service.proto;l=2326
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -926,7 +880,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CreateClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2316
+     *     google/container/v1beta1/cluster_service.proto;l=2326
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -954,7 +908,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CreateClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2316
+     *     google/container/v1beta1/cluster_service.proto;l=2326
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -981,7 +935,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CreateClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2316
+     *     google/container/v1beta1/cluster_service.proto;l=2326
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1004,7 +958,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CreateClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2316
+     *     google/container/v1beta1/cluster_service.proto;l=2326
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1375,7 +1329,18 @@ public CreateClusterRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CreateClusterRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateClusterRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateClusterRequestOrBuilder.java
index 35f7a762..51b53aad 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateClusterRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateClusterRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface CreateClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CreateClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2307
+   *     google/container/v1beta1/cluster_service.proto;l=2317
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface CreateClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CreateClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2307
+   *     google/container/v1beta1/cluster_service.proto;l=2317
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface CreateClusterRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CreateClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2316
+   *     google/container/v1beta1/cluster_service.proto;l=2326
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface CreateClusterRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CreateClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2316
+   *     google/container/v1beta1/cluster_service.proto;l=2326
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateNodePoolRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateNodePoolRequest.java
index ef738a28..cb1211b0 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateNodePoolRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateNodePoolRequest.java
@@ -55,89 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private CreateNodePoolRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1beta1.NodePool.Builder subBuilder = null;
-              if (nodePool_ != null) {
-                subBuilder = nodePool_.toBuilder();
-              }
-              nodePool_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePool.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodePool_);
-                nodePool_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_CreateNodePoolRequest_descriptor;
@@ -168,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3063
+   *     google/container/v1beta1/cluster_service.proto;l=3076
    * @return The projectId.
    */
   @java.lang.Override
@@ -197,7 +114,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3063
+   *     google/container/v1beta1/cluster_service.proto;l=3076
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -229,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3072
+   *     google/container/v1beta1/cluster_service.proto;l=3085
    * @return The zone.
    */
   @java.lang.Override
@@ -258,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3072
+   *     google/container/v1beta1/cluster_service.proto;l=3085
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -289,7 +206,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3079
+   *     google/container/v1beta1/cluster_service.proto;l=3092
    * @return The clusterId.
    */
   @java.lang.Override
@@ -317,7 +234,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3079
+   *     google/container/v1beta1/cluster_service.proto;l=3092
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -470,7 +387,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -494,7 +411,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -518,7 +435,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getNodePool().equals(other.getNodePool())) return false;
     }
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -541,7 +458,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -670,17 +587,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.CreateNodePoolRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -805,7 +715,7 @@ public Builder mergeFrom(com.google.container.v1beta1.CreateNodePoolRequest othe
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -820,18 +730,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.CreateNodePoolRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getNodePoolFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 50:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.CreateNodePoolRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -849,7 +802,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3063
+     *     google/container/v1beta1/cluster_service.proto;l=3076
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -877,7 +830,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3063
+     *     google/container/v1beta1/cluster_service.proto;l=3076
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -905,7 +858,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3063
+     *     google/container/v1beta1/cluster_service.proto;l=3076
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -932,7 +885,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3063
+     *     google/container/v1beta1/cluster_service.proto;l=3076
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -955,7 +908,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3063
+     *     google/container/v1beta1/cluster_service.proto;l=3076
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -985,7 +938,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3072
+     *     google/container/v1beta1/cluster_service.proto;l=3085
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1013,7 +966,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3072
+     *     google/container/v1beta1/cluster_service.proto;l=3085
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1041,7 +994,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3072
+     *     google/container/v1beta1/cluster_service.proto;l=3085
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1068,7 +1021,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3072
+     *     google/container/v1beta1/cluster_service.proto;l=3085
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1091,7 +1044,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3072
+     *     google/container/v1beta1/cluster_service.proto;l=3085
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1120,7 +1073,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3079
+     *     google/container/v1beta1/cluster_service.proto;l=3092
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1147,7 +1100,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3079
+     *     google/container/v1beta1/cluster_service.proto;l=3092
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1174,7 +1127,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3079
+     *     google/container/v1beta1/cluster_service.proto;l=3092
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1200,7 +1153,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3079
+     *     google/container/v1beta1/cluster_service.proto;l=3092
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1222,7 +1175,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.CreateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3079
+     *     google/container/v1beta1/cluster_service.proto;l=3092
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1589,7 +1542,18 @@ public CreateNodePoolRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new CreateNodePoolRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateNodePoolRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateNodePoolRequestOrBuilder.java
index 8e4e19ee..41266bf4 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateNodePoolRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/CreateNodePoolRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface CreateNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3063
+   *     google/container/v1beta1/cluster_service.proto;l=3076
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface CreateNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3063
+   *     google/container/v1beta1/cluster_service.proto;l=3076
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface CreateNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3072
+   *     google/container/v1beta1/cluster_service.proto;l=3085
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface CreateNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3072
+   *     google/container/v1beta1/cluster_service.proto;l=3085
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface CreateNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3079
+   *     google/container/v1beta1/cluster_service.proto;l=3092
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface CreateNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.CreateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3079
+   *     google/container/v1beta1/cluster_service.proto;l=3092
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DNSConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DNSConfig.java
index 1e3da9a7..96e3a32b 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DNSConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DNSConfig.java
@@ -54,66 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DNSConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              clusterDns_ = rawValue;
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              clusterDnsScope_ = rawValue;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterDnsDomain_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_DNSConfig_descriptor;
@@ -589,7 +529,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clusterDnsDomain_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, clusterDnsDomain_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -609,7 +549,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clusterDnsDomain_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, clusterDnsDomain_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -627,7 +567,7 @@ public boolean equals(final java.lang.Object obj) {
     if (clusterDns_ != other.clusterDns_) return false;
     if (clusterDnsScope_ != other.clusterDnsScope_) return false;
     if (!getClusterDnsDomain().equals(other.getClusterDnsDomain())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -644,7 +584,7 @@ public int hashCode() {
     hash = (53 * hash) + clusterDnsScope_;
     hash = (37 * hash) + CLUSTER_DNS_DOMAIN_FIELD_NUMBER;
     hash = (53 * hash) + getClusterDnsDomain().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -773,17 +713,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.DNSConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -884,7 +817,7 @@ public Builder mergeFrom(com.google.container.v1beta1.DNSConfig other) {
         clusterDnsDomain_ = other.clusterDnsDomain_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -899,17 +832,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.DNSConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                clusterDns_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                clusterDnsScope_ = input.readEnum();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                clusterDnsDomain_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.DNSConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1233,7 +1198,18 @@ public DNSConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DNSConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DailyMaintenanceWindow.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DailyMaintenanceWindow.java
index d192ccbc..883cf835 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DailyMaintenanceWindow.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DailyMaintenanceWindow.java
@@ -53,59 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DailyMaintenanceWindow(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              startTime_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              duration_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_DailyMaintenanceWindow_descriptor;
@@ -243,7 +190,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(duration_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, duration_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -258,7 +205,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(duration_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, duration_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -276,7 +223,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getStartTime().equals(other.getStartTime())) return false;
     if (!getDuration().equals(other.getDuration())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -291,7 +238,7 @@ public int hashCode() {
     hash = (53 * hash) + getStartTime().hashCode();
     hash = (37 * hash) + DURATION_FIELD_NUMBER;
     hash = (53 * hash) + getDuration().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -420,17 +367,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.DailyMaintenanceWindow.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -527,7 +467,7 @@ public Builder mergeFrom(com.google.container.v1beta1.DailyMaintenanceWindow oth
         duration_ = other.duration_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -542,18 +482,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.DailyMaintenanceWindow parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 18:
+              {
+                startTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                duration_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.DailyMaintenanceWindow) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -811,7 +776,18 @@ public DailyMaintenanceWindow parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DailyMaintenanceWindow(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DatabaseEncryption.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DatabaseEncryption.java
index 12098962..22ce462d 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DatabaseEncryption.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DatabaseEncryption.java
@@ -53,59 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DatabaseEncryption(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              keyName_ = s;
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              state_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_DatabaseEncryption_descriptor;
@@ -389,7 +336,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (state_ != com.google.container.v1beta1.DatabaseEncryption.State.UNKNOWN.getNumber()) {
       output.writeEnum(2, state_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -404,7 +351,7 @@ public int getSerializedSize() {
     if (state_ != com.google.container.v1beta1.DatabaseEncryption.State.UNKNOWN.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, state_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -422,7 +369,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (state_ != other.state_) return false;
     if (!getKeyName().equals(other.getKeyName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -437,7 +384,7 @@ public int hashCode() {
     hash = (53 * hash) + state_;
     hash = (37 * hash) + KEY_NAME_FIELD_NUMBER;
     hash = (53 * hash) + getKeyName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -566,17 +513,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.DatabaseEncryption.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -672,7 +612,7 @@ public Builder mergeFrom(com.google.container.v1beta1.DatabaseEncryption other)
         keyName_ = other.keyName_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -687,17 +627,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.DatabaseEncryption parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                keyName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                state_ = input.readEnum();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.DatabaseEncryption) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -937,7 +903,18 @@ public DatabaseEncryption parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DatabaseEncryption(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DefaultSnatStatus.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DefaultSnatStatus.java
index 93aec9ee..f60bbc74 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DefaultSnatStatus.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DefaultSnatStatus.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DefaultSnatStatus(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_DefaultSnatStatus_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (disabled_ != false) {
       output.writeBool(1, disabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (disabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, disabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.DefaultSnatStatus) obj;
 
     if (getDisabled() != other.getDisabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DISABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.DefaultSnatStatus.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1beta1.DefaultSnatStatus other) {
       if (other.getDisabled() != false) {
         setDisabled(other.getDisabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,17 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.DefaultSnatStatus parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.DefaultSnatStatus) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +497,18 @@ public DefaultSnatStatus parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DefaultSnatStatus(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteClusterRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteClusterRequest.java
index cc097c11..18f978b1 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteClusterRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteClusterRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DeleteClusterRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_DeleteClusterRequest_descriptor;
@@ -152,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2805
+   *     google/container/v1beta1/cluster_service.proto;l=2818
    * @return The projectId.
    */
   @java.lang.Override
@@ -181,7 +114,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2805
+   *     google/container/v1beta1/cluster_service.proto;l=2818
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -213,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2814
+   *     google/container/v1beta1/cluster_service.proto;l=2827
    * @return The zone.
    */
   @java.lang.Override
@@ -242,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2814
+   *     google/container/v1beta1/cluster_service.proto;l=2827
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -273,7 +206,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2821
+   *     google/container/v1beta1/cluster_service.proto;l=2834
    * @return The clusterId.
    */
   @java.lang.Override
@@ -301,7 +234,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2821
+   *     google/container/v1beta1/cluster_service.proto;l=2834
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -395,7 +328,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -416,7 +349,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -436,7 +369,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -455,7 +388,7 @@ public int hashCode() {
     hash = (53 * hash) + getClusterId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -584,17 +517,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.DeleteClusterRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -705,7 +631,7 @@ public Builder mergeFrom(com.google.container.v1beta1.DeleteClusterRequest other
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -720,18 +646,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.DeleteClusterRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.DeleteClusterRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -749,7 +712,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2805
+     *     google/container/v1beta1/cluster_service.proto;l=2818
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -777,7 +740,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2805
+     *     google/container/v1beta1/cluster_service.proto;l=2818
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -805,7 +768,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2805
+     *     google/container/v1beta1/cluster_service.proto;l=2818
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -832,7 +795,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2805
+     *     google/container/v1beta1/cluster_service.proto;l=2818
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -855,7 +818,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2805
+     *     google/container/v1beta1/cluster_service.proto;l=2818
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -885,7 +848,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2814
+     *     google/container/v1beta1/cluster_service.proto;l=2827
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -913,7 +876,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2814
+     *     google/container/v1beta1/cluster_service.proto;l=2827
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -941,7 +904,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2814
+     *     google/container/v1beta1/cluster_service.proto;l=2827
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -968,7 +931,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2814
+     *     google/container/v1beta1/cluster_service.proto;l=2827
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -991,7 +954,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2814
+     *     google/container/v1beta1/cluster_service.proto;l=2827
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1020,7 +983,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2821
+     *     google/container/v1beta1/cluster_service.proto;l=2834
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1047,7 +1010,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2821
+     *     google/container/v1beta1/cluster_service.proto;l=2834
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1074,7 +1037,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2821
+     *     google/container/v1beta1/cluster_service.proto;l=2834
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1100,7 +1063,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2821
+     *     google/container/v1beta1/cluster_service.proto;l=2834
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1122,7 +1085,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2821
+     *     google/container/v1beta1/cluster_service.proto;l=2834
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1281,7 +1244,18 @@ public DeleteClusterRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DeleteClusterRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteClusterRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteClusterRequestOrBuilder.java
index 52c08884..e6f1f527 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteClusterRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteClusterRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface DeleteClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2805
+   *     google/container/v1beta1/cluster_service.proto;l=2818
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface DeleteClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2805
+   *     google/container/v1beta1/cluster_service.proto;l=2818
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface DeleteClusterRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2814
+   *     google/container/v1beta1/cluster_service.proto;l=2827
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface DeleteClusterRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2814
+   *     google/container/v1beta1/cluster_service.proto;l=2827
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface DeleteClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2821
+   *     google/container/v1beta1/cluster_service.proto;l=2834
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface DeleteClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.DeleteClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2821
+   *     google/container/v1beta1/cluster_service.proto;l=2834
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteNodePoolRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteNodePoolRequest.java
index 6c478dfb..add8e8a8 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteNodePoolRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteNodePoolRequest.java
@@ -56,80 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DeleteNodePoolRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_DeleteNodePoolRequest_descriptor;
@@ -160,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3098
+   *     google/container/v1beta1/cluster_service.proto;l=3111
    * @return The projectId.
    */
   @java.lang.Override
@@ -189,7 +115,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3098
+   *     google/container/v1beta1/cluster_service.proto;l=3111
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -221,7 +147,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3107
+   *     google/container/v1beta1/cluster_service.proto;l=3120
    * @return The zone.
    */
   @java.lang.Override
@@ -250,7 +176,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3107
+   *     google/container/v1beta1/cluster_service.proto;l=3120
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -281,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3114
+   *     google/container/v1beta1/cluster_service.proto;l=3127
    * @return The clusterId.
    */
   @java.lang.Override
@@ -309,7 +235,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3114
+   *     google/container/v1beta1/cluster_service.proto;l=3127
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -340,7 +266,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3121
+   *     google/container/v1beta1/cluster_service.proto;l=3134
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -368,7 +294,7 @@ public java.lang.String getNodePoolId() {
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3121
+   *     google/container/v1beta1/cluster_service.proto;l=3134
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -467,7 +393,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -491,7 +417,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -512,7 +438,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getNodePoolId().equals(other.getNodePoolId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -533,7 +459,7 @@ public int hashCode() {
     hash = (53 * hash) + getNodePoolId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -662,17 +588,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.DeleteNodePoolRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -790,7 +709,7 @@ public Builder mergeFrom(com.google.container.v1beta1.DeleteNodePoolRequest othe
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -805,18 +724,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.DeleteNodePoolRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.DeleteNodePoolRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -834,7 +796,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3098
+     *     google/container/v1beta1/cluster_service.proto;l=3111
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -862,7 +824,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3098
+     *     google/container/v1beta1/cluster_service.proto;l=3111
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -890,7 +852,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3098
+     *     google/container/v1beta1/cluster_service.proto;l=3111
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -917,7 +879,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3098
+     *     google/container/v1beta1/cluster_service.proto;l=3111
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -940,7 +902,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3098
+     *     google/container/v1beta1/cluster_service.proto;l=3111
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -970,7 +932,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3107
+     *     google/container/v1beta1/cluster_service.proto;l=3120
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -998,7 +960,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3107
+     *     google/container/v1beta1/cluster_service.proto;l=3120
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1026,7 +988,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3107
+     *     google/container/v1beta1/cluster_service.proto;l=3120
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1053,7 +1015,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3107
+     *     google/container/v1beta1/cluster_service.proto;l=3120
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1076,7 +1038,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3107
+     *     google/container/v1beta1/cluster_service.proto;l=3120
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1105,7 +1067,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3114
+     *     google/container/v1beta1/cluster_service.proto;l=3127
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1132,7 +1094,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3114
+     *     google/container/v1beta1/cluster_service.proto;l=3127
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1159,7 +1121,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3114
+     *     google/container/v1beta1/cluster_service.proto;l=3127
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1185,7 +1147,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3114
+     *     google/container/v1beta1/cluster_service.proto;l=3127
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1207,7 +1169,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3114
+     *     google/container/v1beta1/cluster_service.proto;l=3127
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1236,7 +1198,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3121
+     *     google/container/v1beta1/cluster_service.proto;l=3134
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1263,7 +1225,7 @@ public java.lang.String getNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3121
+     *     google/container/v1beta1/cluster_service.proto;l=3134
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1290,7 +1252,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3121
+     *     google/container/v1beta1/cluster_service.proto;l=3134
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1316,7 +1278,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3121
+     *     google/container/v1beta1/cluster_service.proto;l=3134
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1338,7 +1300,7 @@ public Builder clearNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3121
+     *     google/container/v1beta1/cluster_service.proto;l=3134
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1502,7 +1464,18 @@ public DeleteNodePoolRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DeleteNodePoolRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteNodePoolRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteNodePoolRequestOrBuilder.java
index 3919f5ec..4ea9df09 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteNodePoolRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DeleteNodePoolRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3098
+   *     google/container/v1beta1/cluster_service.proto;l=3111
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3098
+   *     google/container/v1beta1/cluster_service.proto;l=3111
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3107
+   *     google/container/v1beta1/cluster_service.proto;l=3120
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3107
+   *     google/container/v1beta1/cluster_service.proto;l=3120
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3114
+   *     google/container/v1beta1/cluster_service.proto;l=3127
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3114
+   *     google/container/v1beta1/cluster_service.proto;l=3127
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -144,7 +144,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3121
+   *     google/container/v1beta1/cluster_service.proto;l=3134
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -161,7 +161,7 @@ public interface DeleteNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.DeleteNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3121
+   *     google/container/v1beta1/cluster_service.proto;l=3134
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DnsCacheConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DnsCacheConfig.java
index 8c61f2bc..cdf975ef 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DnsCacheConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/DnsCacheConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private DnsCacheConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_DnsCacheConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.DnsCacheConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.DnsCacheConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -413,7 +362,7 @@ public Builder mergeFrom(com.google.container.v1beta1.DnsCacheConfig other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -428,17 +377,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.DnsCacheConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.DnsCacheConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -526,7 +495,18 @@ public DnsCacheConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new DnsCacheConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/EphemeralStorageConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/EphemeralStorageConfig.java
index 47e701d3..9166cf2a 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/EphemeralStorageConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/EphemeralStorageConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private EphemeralStorageConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              localSsdCount_ = input.readInt32();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_EphemeralStorageConfig_descriptor;
@@ -147,7 +103,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (localSsdCount_ != 0) {
       output.writeInt32(1, localSsdCount_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -159,7 +115,7 @@ public int getSerializedSize() {
     if (localSsdCount_ != 0) {
       size += com.google.protobuf.CodedOutputStream.computeInt32Size(1, localSsdCount_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -176,7 +132,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.EphemeralStorageConfig) obj;
 
     if (getLocalSsdCount() != other.getLocalSsdCount()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -189,7 +145,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + LOCAL_SSD_COUNT_FIELD_NUMBER;
     hash = (53 * hash) + getLocalSsdCount();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -319,17 +275,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.EphemeralStorageConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -418,7 +367,7 @@ public Builder mergeFrom(com.google.container.v1beta1.EphemeralStorageConfig oth
       if (other.getLocalSsdCount() != 0) {
         setLocalSsdCount(other.getLocalSsdCount());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -433,18 +382,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.EphemeralStorageConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                localSsdCount_ = input.readInt32();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.EphemeralStorageConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -538,7 +506,18 @@ public EphemeralStorageConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new EphemeralStorageConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GPUSharingConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GPUSharingConfig.java
index 93523472..3a17e8e9 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GPUSharingConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GPUSharingConfig.java
@@ -53,58 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GPUSharingConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              maxSharedClientsPerGpu_ = input.readInt64();
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-              bitField0_ |= 0x00000001;
-              gpuSharingStrategy_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GPUSharingConfig_descriptor;
@@ -357,7 +305,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeEnum(2, gpuSharingStrategy_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -372,7 +320,7 @@ public int getSerializedSize() {
     if (((bitField0_ & 0x00000001) != 0)) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, gpuSharingStrategy_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -393,7 +341,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasGpuSharingStrategy()) {
       if (gpuSharingStrategy_ != other.gpuSharingStrategy_) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -410,7 +358,7 @@ public int hashCode() {
       hash = (37 * hash) + GPU_SHARING_STRATEGY_FIELD_NUMBER;
       hash = (53 * hash) + gpuSharingStrategy_;
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -540,17 +488,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GPUSharingConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -650,7 +591,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GPUSharingConfig other) {
       if (other.hasGpuSharingStrategy()) {
         setGpuSharingStrategy(other.getGpuSharingStrategy());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -665,17 +606,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GPUSharingConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                maxSharedClientsPerGpu_ = input.readInt64();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                gpuSharingStrategy_ = input.readEnum();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.GPUSharingConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -888,7 +855,18 @@ public GPUSharingConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GPUSharingConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcePersistentDiskCsiDriverConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcePersistentDiskCsiDriverConfig.java
index 6194a85d..8437384b 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcePersistentDiskCsiDriverConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcePersistentDiskCsiDriverConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GcePersistentDiskCsiDriverConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GcePersistentDiskCsiDriverConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.GcePersistentDiskCsiDriverConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GcePersistentDiskCsiDriverConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -418,7 +367,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GcePersistentDiskCsiDriver
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -433,19 +382,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GcePersistentDiskCsiDriverConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.GcePersistentDiskCsiDriverConfig)
-                e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -534,7 +501,18 @@ public GcePersistentDiskCsiDriverConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GcePersistentDiskCsiDriverConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcfsConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcfsConfig.java
index 93cb587a..050a7b06 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcfsConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcfsConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GcfsConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GcfsConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -172,7 +128,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1beta1.GcfsConfig other = (com.google.container.v1beta1.GcfsConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -185,7 +141,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -314,17 +270,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GcfsConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -412,7 +361,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GcfsConfig other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -427,17 +376,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GcfsConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.GcfsConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -525,7 +494,18 @@ public GcfsConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GcfsConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcpFilestoreCsiDriverConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcpFilestoreCsiDriverConfig.java
index c65d63c9..458e3f58 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcpFilestoreCsiDriverConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GcpFilestoreCsiDriverConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GcpFilestoreCsiDriverConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GcpFilestoreCsiDriverConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.GcpFilestoreCsiDriverConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -316,17 +272,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GcpFilestoreCsiDriverConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GcpFilestoreCsiDriverConfi
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,18 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GcpFilestoreCsiDriverConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.GcpFilestoreCsiDriverConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -529,7 +497,18 @@ public GcpFilestoreCsiDriverConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GcpFilestoreCsiDriverConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetClusterRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetClusterRequest.java
index 9c76def4..bf8afccf 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetClusterRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetClusterRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetClusterRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GetClusterRequest_descriptor;
@@ -152,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2335
+   *     google/container/v1beta1/cluster_service.proto;l=2345
    * @return The projectId.
    */
   @java.lang.Override
@@ -181,7 +114,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2335
+   *     google/container/v1beta1/cluster_service.proto;l=2345
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -213,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2344
+   *     google/container/v1beta1/cluster_service.proto;l=2354
    * @return The zone.
    */
   @java.lang.Override
@@ -242,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2344
+   *     google/container/v1beta1/cluster_service.proto;l=2354
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -273,7 +206,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2351
+   *     google/container/v1beta1/cluster_service.proto;l=2361
    * @return The clusterId.
    */
   @java.lang.Override
@@ -301,7 +234,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2351
+   *     google/container/v1beta1/cluster_service.proto;l=2361
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -395,7 +328,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -416,7 +349,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -436,7 +369,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -455,7 +388,7 @@ public int hashCode() {
     hash = (53 * hash) + getClusterId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -584,17 +517,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GetClusterRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -704,7 +630,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GetClusterRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -719,17 +645,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GetClusterRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 42:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.GetClusterRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -747,7 +711,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2335
+     *     google/container/v1beta1/cluster_service.proto;l=2345
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -775,7 +739,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2335
+     *     google/container/v1beta1/cluster_service.proto;l=2345
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -803,7 +767,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2335
+     *     google/container/v1beta1/cluster_service.proto;l=2345
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -830,7 +794,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2335
+     *     google/container/v1beta1/cluster_service.proto;l=2345
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -853,7 +817,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2335
+     *     google/container/v1beta1/cluster_service.proto;l=2345
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -883,7 +847,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2344
+     *     google/container/v1beta1/cluster_service.proto;l=2354
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -911,7 +875,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2344
+     *     google/container/v1beta1/cluster_service.proto;l=2354
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -939,7 +903,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2344
+     *     google/container/v1beta1/cluster_service.proto;l=2354
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -966,7 +930,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2344
+     *     google/container/v1beta1/cluster_service.proto;l=2354
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -989,7 +953,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2344
+     *     google/container/v1beta1/cluster_service.proto;l=2354
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1018,7 +982,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2351
+     *     google/container/v1beta1/cluster_service.proto;l=2361
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1045,7 +1009,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2351
+     *     google/container/v1beta1/cluster_service.proto;l=2361
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1072,7 +1036,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2351
+     *     google/container/v1beta1/cluster_service.proto;l=2361
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1098,7 +1062,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2351
+     *     google/container/v1beta1/cluster_service.proto;l=2361
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1120,7 +1084,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2351
+     *     google/container/v1beta1/cluster_service.proto;l=2361
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1279,7 +1243,18 @@ public GetClusterRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetClusterRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetClusterRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetClusterRequestOrBuilder.java
index 2e84fa5f..ab76539a 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetClusterRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetClusterRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface GetClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2335
+   *     google/container/v1beta1/cluster_service.proto;l=2345
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface GetClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2335
+   *     google/container/v1beta1/cluster_service.proto;l=2345
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface GetClusterRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2344
+   *     google/container/v1beta1/cluster_service.proto;l=2354
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface GetClusterRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2344
+   *     google/container/v1beta1/cluster_service.proto;l=2354
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface GetClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2351
+   *     google/container/v1beta1/cluster_service.proto;l=2361
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface GetClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2351
+   *     google/container/v1beta1/cluster_service.proto;l=2361
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetJSONWebKeysRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetJSONWebKeysRequest.java
index 683e23e9..a889184d 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetJSONWebKeysRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetJSONWebKeysRequest.java
@@ -55,52 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetJSONWebKeysRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GetJSONWebKeysRequest_descriptor;
@@ -184,7 +138,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -196,7 +150,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -213,7 +167,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.GetJSONWebKeysRequest) obj;
 
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -226,7 +180,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -358,17 +312,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GetJSONWebKeysRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -458,7 +405,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GetJSONWebKeysRequest othe
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -473,18 +420,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GetJSONWebKeysRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.GetJSONWebKeysRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -631,7 +597,18 @@ public GetJSONWebKeysRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetJSONWebKeysRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetJSONWebKeysResponse.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetJSONWebKeysResponse.java
index eddcd7ac..c1b4e059 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetJSONWebKeysResponse.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetJSONWebKeysResponse.java
@@ -52,59 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetJSONWebKeysResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                keys_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              keys_.add(
-                  input.readMessage(com.google.container.v1beta1.Jwk.parser(), extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        keys_ = java.util.Collections.unmodifiableList(keys_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GetJSONWebKeysResponse_descriptor;
@@ -211,7 +158,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < keys_.size(); i++) {
       output.writeMessage(1, keys_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -223,7 +170,7 @@ public int getSerializedSize() {
     for (int i = 0; i < keys_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, keys_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -240,7 +187,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.GetJSONWebKeysResponse) obj;
 
     if (!getKeysList().equals(other.getKeysList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -255,7 +202,7 @@ public int hashCode() {
       hash = (37 * hash) + KEYS_FIELD_NUMBER;
       hash = (53 * hash) + getKeysList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -384,19 +331,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GetJSONWebKeysResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getKeysFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -404,10 +342,11 @@ public Builder clear() {
       super.clear();
       if (keysBuilder_ == null) {
         keys_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        keys_ = null;
         keysBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       return this;
     }
 
@@ -522,7 +461,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GetJSONWebKeysResponse oth
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -537,18 +476,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GetJSONWebKeysResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1beta1.Jwk m =
+                    input.readMessage(com.google.container.v1beta1.Jwk.parser(), extensionRegistry);
+                if (keysBuilder_ == null) {
+                  ensureKeysIsMutable();
+                  keys_.add(m);
+                } else {
+                  keysBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.GetJSONWebKeysResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -950,7 +914,18 @@ public GetJSONWebKeysResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetJSONWebKeysResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetNodePoolRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetNodePoolRequest.java
index 9c150d59..7fd93507 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetNodePoolRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetNodePoolRequest.java
@@ -56,80 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetNodePoolRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GetNodePoolRequest_descriptor;
@@ -160,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3168
+   *     google/container/v1beta1/cluster_service.proto;l=3181
    * @return The projectId.
    */
   @java.lang.Override
@@ -189,7 +115,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3168
+   *     google/container/v1beta1/cluster_service.proto;l=3181
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -221,7 +147,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3177
+   *     google/container/v1beta1/cluster_service.proto;l=3190
    * @return The zone.
    */
   @java.lang.Override
@@ -250,7 +176,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3177
+   *     google/container/v1beta1/cluster_service.proto;l=3190
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -281,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3184
+   *     google/container/v1beta1/cluster_service.proto;l=3197
    * @return The clusterId.
    */
   @java.lang.Override
@@ -309,7 +235,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3184
+   *     google/container/v1beta1/cluster_service.proto;l=3197
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -340,7 +266,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3191
+   *     google/container/v1beta1/cluster_service.proto;l=3204
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -368,7 +294,7 @@ public java.lang.String getNodePoolId() {
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3191
+   *     google/container/v1beta1/cluster_service.proto;l=3204
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -467,7 +393,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -491,7 +417,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -512,7 +438,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getNodePoolId().equals(other.getNodePoolId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -533,7 +459,7 @@ public int hashCode() {
     hash = (53 * hash) + getNodePoolId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -662,17 +588,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GetNodePoolRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -790,7 +709,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GetNodePoolRequest other)
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -805,17 +724,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GetNodePoolRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.GetNodePoolRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -833,7 +796,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3168
+     *     google/container/v1beta1/cluster_service.proto;l=3181
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -861,7 +824,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3168
+     *     google/container/v1beta1/cluster_service.proto;l=3181
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -889,7 +852,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3168
+     *     google/container/v1beta1/cluster_service.proto;l=3181
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -916,7 +879,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3168
+     *     google/container/v1beta1/cluster_service.proto;l=3181
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -939,7 +902,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3168
+     *     google/container/v1beta1/cluster_service.proto;l=3181
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -969,7 +932,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3177
+     *     google/container/v1beta1/cluster_service.proto;l=3190
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -997,7 +960,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3177
+     *     google/container/v1beta1/cluster_service.proto;l=3190
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1025,7 +988,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3177
+     *     google/container/v1beta1/cluster_service.proto;l=3190
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1052,7 +1015,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3177
+     *     google/container/v1beta1/cluster_service.proto;l=3190
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1075,7 +1038,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3177
+     *     google/container/v1beta1/cluster_service.proto;l=3190
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1104,7 +1067,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3184
+     *     google/container/v1beta1/cluster_service.proto;l=3197
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1131,7 +1094,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3184
+     *     google/container/v1beta1/cluster_service.proto;l=3197
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1158,7 +1121,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3184
+     *     google/container/v1beta1/cluster_service.proto;l=3197
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1184,7 +1147,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3184
+     *     google/container/v1beta1/cluster_service.proto;l=3197
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1206,7 +1169,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3184
+     *     google/container/v1beta1/cluster_service.proto;l=3197
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1235,7 +1198,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3191
+     *     google/container/v1beta1/cluster_service.proto;l=3204
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1262,7 +1225,7 @@ public java.lang.String getNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3191
+     *     google/container/v1beta1/cluster_service.proto;l=3204
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1289,7 +1252,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3191
+     *     google/container/v1beta1/cluster_service.proto;l=3204
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1315,7 +1278,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3191
+     *     google/container/v1beta1/cluster_service.proto;l=3204
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1337,7 +1300,7 @@ public Builder clearNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3191
+     *     google/container/v1beta1/cluster_service.proto;l=3204
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1501,7 +1464,18 @@ public GetNodePoolRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetNodePoolRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetNodePoolRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetNodePoolRequestOrBuilder.java
index 293d8ec4..5de21604 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetNodePoolRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetNodePoolRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface GetNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3168
+   *     google/container/v1beta1/cluster_service.proto;l=3181
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface GetNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3168
+   *     google/container/v1beta1/cluster_service.proto;l=3181
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface GetNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3177
+   *     google/container/v1beta1/cluster_service.proto;l=3190
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface GetNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3177
+   *     google/container/v1beta1/cluster_service.proto;l=3190
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface GetNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3184
+   *     google/container/v1beta1/cluster_service.proto;l=3197
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface GetNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3184
+   *     google/container/v1beta1/cluster_service.proto;l=3197
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -144,7 +144,7 @@ public interface GetNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3191
+   *     google/container/v1beta1/cluster_service.proto;l=3204
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -161,7 +161,7 @@ public interface GetNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3191
+   *     google/container/v1beta1/cluster_service.proto;l=3204
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOpenIDConfigRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOpenIDConfigRequest.java
index 9ba1f875..8ca34714 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOpenIDConfigRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOpenIDConfigRequest.java
@@ -53,52 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetOpenIDConfigRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GetOpenIDConfigRequest_descriptor;
@@ -182,7 +136,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -194,7 +148,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -211,7 +165,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.GetOpenIDConfigRequest) obj;
 
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -224,7 +178,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -354,17 +308,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GetOpenIDConfigRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -454,7 +401,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GetOpenIDConfigRequest oth
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -469,18 +416,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GetOpenIDConfigRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.GetOpenIDConfigRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -627,7 +593,18 @@ public GetOpenIDConfigRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetOpenIDConfigRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOpenIDConfigResponse.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOpenIDConfigResponse.java
index 4da71a15..deed4e6f 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOpenIDConfigResponse.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOpenIDConfigResponse.java
@@ -59,125 +59,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetOpenIDConfigResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              issuer_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              jwksUri_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                responseTypesSupported_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              responseTypesSupported_.add(s);
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                subjectTypesSupported_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              subjectTypesSupported_.add(s);
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                idTokenSigningAlgValuesSupported_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000004;
-              }
-              idTokenSigningAlgValuesSupported_.add(s);
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000008) != 0)) {
-                claimsSupported_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000008;
-              }
-              claimsSupported_.add(s);
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000010) != 0)) {
-                grantTypes_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000010;
-              }
-              grantTypes_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        responseTypesSupported_ = responseTypesSupported_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        subjectTypesSupported_ = subjectTypesSupported_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000004) != 0)) {
-        idTokenSigningAlgValuesSupported_ = idTokenSigningAlgValuesSupported_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000008) != 0)) {
-        claimsSupported_ = claimsSupported_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000010) != 0)) {
-        grantTypes_ = grantTypes_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GetOpenIDConfigResponse_descriptor;
@@ -634,7 +515,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < grantTypes_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, grantTypes_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -689,7 +570,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getGrantTypesList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -714,7 +595,7 @@ public boolean equals(final java.lang.Object obj) {
         .equals(other.getIdTokenSigningAlgValuesSupportedList())) return false;
     if (!getClaimsSupportedList().equals(other.getClaimsSupportedList())) return false;
     if (!getGrantTypesList().equals(other.getGrantTypesList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -749,7 +630,7 @@ public int hashCode() {
       hash = (37 * hash) + GRANT_TYPES_FIELD_NUMBER;
       hash = (53 * hash) + getGrantTypesList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -879,17 +760,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GetOpenIDConfigResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1072,7 +946,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GetOpenIDConfigResponse ot
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1087,18 +961,78 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GetOpenIDConfigResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                issuer_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                jwksUri_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureResponseTypesSupportedIsMutable();
+                responseTypesSupported_.add(s);
+                break;
+              } // case 26
+            case 34:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureSubjectTypesSupportedIsMutable();
+                subjectTypesSupported_.add(s);
+                break;
+              } // case 34
+            case 42:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureIdTokenSigningAlgValuesSupportedIsMutable();
+                idTokenSigningAlgValuesSupported_.add(s);
+                break;
+              } // case 42
+            case 50:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureClaimsSupportedIsMutable();
+                claimsSupported_.add(s);
+                break;
+              } // case 50
+            case 58:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureGrantTypesIsMutable();
+                grantTypes_.add(s);
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.GetOpenIDConfigResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2193,7 +2127,18 @@ public GetOpenIDConfigResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetOpenIDConfigResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOperationRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOperationRequest.java
index 4c38f3f1..f237fce5 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOperationRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOperationRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetOperationRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              operationId_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GetOperationRequest_descriptor;
@@ -152,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2872
+   *     google/container/v1beta1/cluster_service.proto;l=2885
    * @return The projectId.
    */
   @java.lang.Override
@@ -181,7 +114,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2872
+   *     google/container/v1beta1/cluster_service.proto;l=2885
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -213,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2881
+   *     google/container/v1beta1/cluster_service.proto;l=2894
    * @return The zone.
    */
   @java.lang.Override
@@ -242,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2881
+   *     google/container/v1beta1/cluster_service.proto;l=2894
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -273,7 +206,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.operation_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2888
+   *     google/container/v1beta1/cluster_service.proto;l=2901
    * @return The operationId.
    */
   @java.lang.Override
@@ -301,7 +234,7 @@ public java.lang.String getOperationId() {
    * 
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.operation_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2888
+   *     google/container/v1beta1/cluster_service.proto;l=2901
    * @return The bytes for operationId.
    */
   @java.lang.Override
@@ -395,7 +328,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -416,7 +349,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -436,7 +369,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getOperationId().equals(other.getOperationId())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -455,7 +388,7 @@ public int hashCode() {
     hash = (53 * hash) + getOperationId().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -584,17 +517,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GetOperationRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -705,7 +631,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GetOperationRequest other)
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -720,17 +646,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GetOperationRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                operationId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 42:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.GetOperationRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -748,7 +712,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2872
+     *     google/container/v1beta1/cluster_service.proto;l=2885
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -776,7 +740,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2872
+     *     google/container/v1beta1/cluster_service.proto;l=2885
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -804,7 +768,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2872
+     *     google/container/v1beta1/cluster_service.proto;l=2885
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -831,7 +795,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2872
+     *     google/container/v1beta1/cluster_service.proto;l=2885
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -854,7 +818,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2872
+     *     google/container/v1beta1/cluster_service.proto;l=2885
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -884,7 +848,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2881
+     *     google/container/v1beta1/cluster_service.proto;l=2894
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -912,7 +876,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2881
+     *     google/container/v1beta1/cluster_service.proto;l=2894
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -940,7 +904,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2881
+     *     google/container/v1beta1/cluster_service.proto;l=2894
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -967,7 +931,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2881
+     *     google/container/v1beta1/cluster_service.proto;l=2894
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -990,7 +954,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2881
+     *     google/container/v1beta1/cluster_service.proto;l=2894
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1019,7 +983,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.operation_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2888
+     *     google/container/v1beta1/cluster_service.proto;l=2901
      * @return The operationId.
      */
     @java.lang.Deprecated
@@ -1046,7 +1010,7 @@ public java.lang.String getOperationId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.operation_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2888
+     *     google/container/v1beta1/cluster_service.proto;l=2901
      * @return The bytes for operationId.
      */
     @java.lang.Deprecated
@@ -1073,7 +1037,7 @@ public com.google.protobuf.ByteString getOperationIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.operation_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2888
+     *     google/container/v1beta1/cluster_service.proto;l=2901
      * @param value The operationId to set.
      * @return This builder for chaining.
      */
@@ -1099,7 +1063,7 @@ public Builder setOperationId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.operation_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2888
+     *     google/container/v1beta1/cluster_service.proto;l=2901
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1121,7 +1085,7 @@ public Builder clearOperationId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetOperationRequest.operation_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2888
+     *     google/container/v1beta1/cluster_service.proto;l=2901
      * @param value The bytes for operationId to set.
      * @return This builder for chaining.
      */
@@ -1280,7 +1244,18 @@ public GetOperationRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetOperationRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOperationRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOperationRequestOrBuilder.java
index 595b9e45..24e37959 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOperationRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetOperationRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface GetOperationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2872
+   *     google/container/v1beta1/cluster_service.proto;l=2885
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface GetOperationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2872
+   *     google/container/v1beta1/cluster_service.proto;l=2885
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface GetOperationRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2881
+   *     google/container/v1beta1/cluster_service.proto;l=2894
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface GetOperationRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2881
+   *     google/container/v1beta1/cluster_service.proto;l=2894
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface GetOperationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.operation_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2888
+   *     google/container/v1beta1/cluster_service.proto;l=2901
    * @return The operationId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface GetOperationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetOperationRequest.operation_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2888
+   *     google/container/v1beta1/cluster_service.proto;l=2901
    * @return The bytes for operationId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetServerConfigRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetServerConfigRequest.java
index 2b39c169..0a9f039a 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetServerConfigRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetServerConfigRequest.java
@@ -54,66 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GetServerConfigRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GetServerConfigRequest_descriptor;
@@ -144,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.GetServerConfigRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2969
+   *     google/container/v1beta1/cluster_service.proto;l=2982
    * @return The projectId.
    */
   @java.lang.Override
@@ -173,7 +113,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.GetServerConfigRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2969
+   *     google/container/v1beta1/cluster_service.proto;l=2982
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -205,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetServerConfigRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2978
+   *     google/container/v1beta1/cluster_service.proto;l=2991
    * @return The zone.
    */
   @java.lang.Override
@@ -234,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetServerConfigRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2978
+   *     google/container/v1beta1/cluster_service.proto;l=2991
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -325,7 +265,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -343,7 +283,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -362,7 +302,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getProjectId().equals(other.getProjectId())) return false;
     if (!getZone().equals(other.getZone())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -379,7 +319,7 @@ public int hashCode() {
     hash = (53 * hash) + getZone().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -508,17 +448,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GetServerConfigRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -622,7 +555,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GetServerConfigRequest oth
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -637,18 +570,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GetServerConfigRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 34:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.GetServerConfigRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -666,7 +630,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.GetServerConfigRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2969
+     *     google/container/v1beta1/cluster_service.proto;l=2982
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -694,7 +658,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetServerConfigRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2969
+     *     google/container/v1beta1/cluster_service.proto;l=2982
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -722,7 +686,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.GetServerConfigRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2969
+     *     google/container/v1beta1/cluster_service.proto;l=2982
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -749,7 +713,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.GetServerConfigRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2969
+     *     google/container/v1beta1/cluster_service.proto;l=2982
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -772,7 +736,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.GetServerConfigRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2969
+     *     google/container/v1beta1/cluster_service.proto;l=2982
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -802,7 +766,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetServerConfigRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2978
+     *     google/container/v1beta1/cluster_service.proto;l=2991
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -830,7 +794,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetServerConfigRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2978
+     *     google/container/v1beta1/cluster_service.proto;l=2991
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -858,7 +822,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetServerConfigRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2978
+     *     google/container/v1beta1/cluster_service.proto;l=2991
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -885,7 +849,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetServerConfigRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2978
+     *     google/container/v1beta1/cluster_service.proto;l=2991
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -908,7 +872,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.GetServerConfigRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2978
+     *     google/container/v1beta1/cluster_service.proto;l=2991
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1067,7 +1031,18 @@ public GetServerConfigRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GetServerConfigRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetServerConfigRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetServerConfigRequestOrBuilder.java
index 914a9df3..158f8e5c 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetServerConfigRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GetServerConfigRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface GetServerConfigRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetServerConfigRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2969
+   *     google/container/v1beta1/cluster_service.proto;l=2982
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface GetServerConfigRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.GetServerConfigRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2969
+   *     google/container/v1beta1/cluster_service.proto;l=2982
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface GetServerConfigRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetServerConfigRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2978
+   *     google/container/v1beta1/cluster_service.proto;l=2991
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface GetServerConfigRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.GetServerConfigRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2978
+   *     google/container/v1beta1/cluster_service.proto;l=2991
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GkeBackupAgentConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GkeBackupAgentConfig.java
index 0f7fe257..e9d40537 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GkeBackupAgentConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/GkeBackupAgentConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private GkeBackupAgentConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_GkeBackupAgentConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.GkeBackupAgentConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.GkeBackupAgentConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -414,7 +363,7 @@ public Builder mergeFrom(com.google.container.v1beta1.GkeBackupAgentConfig other
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -429,18 +378,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.GkeBackupAgentConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.GkeBackupAgentConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -528,7 +496,18 @@ public GkeBackupAgentConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new GkeBackupAgentConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/HorizontalPodAutoscaling.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/HorizontalPodAutoscaling.java
index 9f23bcd0..5abce78e 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/HorizontalPodAutoscaling.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/HorizontalPodAutoscaling.java
@@ -52,50 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private HorizontalPodAutoscaling(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_HorizontalPodAutoscaling_descriptor;
@@ -148,7 +104,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (disabled_ != false) {
       output.writeBool(1, disabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -160,7 +116,7 @@ public int getSerializedSize() {
     if (disabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, disabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -177,7 +133,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.HorizontalPodAutoscaling) obj;
 
     if (getDisabled() != other.getDisabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -190,7 +146,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DISABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -322,17 +278,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.HorizontalPodAutoscaling.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -421,7 +370,7 @@ public Builder mergeFrom(com.google.container.v1beta1.HorizontalPodAutoscaling o
       if (other.getDisabled() != false) {
         setDisabled(other.getDisabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -436,18 +385,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.HorizontalPodAutoscaling parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.HorizontalPodAutoscaling) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -541,7 +509,18 @@ public HorizontalPodAutoscaling parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new HorizontalPodAutoscaling(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/HttpLoadBalancing.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/HttpLoadBalancing.java
index f9131956..73cece29 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/HttpLoadBalancing.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/HttpLoadBalancing.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private HttpLoadBalancing(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_HttpLoadBalancing_descriptor;
@@ -147,7 +103,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (disabled_ != false) {
       output.writeBool(1, disabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -159,7 +115,7 @@ public int getSerializedSize() {
     if (disabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, disabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -176,7 +132,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.HttpLoadBalancing) obj;
 
     if (getDisabled() != other.getDisabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -189,7 +145,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DISABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -319,17 +275,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.HttpLoadBalancing.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -417,7 +366,7 @@ public Builder mergeFrom(com.google.container.v1beta1.HttpLoadBalancing other) {
       if (other.getDisabled() != false) {
         setDisabled(other.getDisabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -432,17 +381,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.HttpLoadBalancing parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.HttpLoadBalancing) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -536,7 +505,18 @@ public HttpLoadBalancing parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new HttpLoadBalancing(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ILBSubsettingConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ILBSubsettingConfig.java
index fabb5052..39bf01c6 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ILBSubsettingConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ILBSubsettingConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ILBSubsettingConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ILBSubsettingConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.ILBSubsettingConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ILBSubsettingConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -416,7 +365,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ILBSubsettingConfig other)
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -431,17 +380,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ILBSubsettingConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ILBSubsettingConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -529,7 +498,18 @@ public ILBSubsettingConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ILBSubsettingConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IPAllocationPolicy.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IPAllocationPolicy.java
index c52a60fb..b9777095 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IPAllocationPolicy.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IPAllocationPolicy.java
@@ -65,163 +65,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private IPAllocationPolicy(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              useIpAliases_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              createSubnetwork_ = input.readBool();
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              subnetworkName_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterIpv4Cidr_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodeIpv4Cidr_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              servicesIpv4Cidr_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterSecondaryRangeName_ = s;
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              servicesSecondaryRangeName_ = s;
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterIpv4CidrBlock_ = s;
-              break;
-            }
-          case 82:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodeIpv4CidrBlock_ = s;
-              break;
-            }
-          case 90:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              servicesIpv4CidrBlock_ = s;
-              break;
-            }
-          case 96:
-            {
-              allowRouteOverlap_ = input.readBool();
-              break;
-            }
-          case 106:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              tpuIpv4CidrBlock_ = s;
-              break;
-            }
-          case 120:
-            {
-              useRoutes_ = input.readBool();
-              break;
-            }
-          case 128:
-            {
-              int rawValue = input.readEnum();
-
-              stackType_ = rawValue;
-              break;
-            }
-          case 136:
-            {
-              int rawValue = input.readEnum();
-
-              ipv6AccessType_ = rawValue;
-              break;
-            }
-          case 178:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              subnetIpv6CidrBlock_ = s;
-              break;
-            }
-          case 186:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              servicesIpv6CidrBlock_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_IPAllocationPolicy_descriptor;
@@ -656,7 +499,7 @@ public com.google.protobuf.ByteString getSubnetworkNameBytes() {
    * string cluster_ipv4_cidr = 4 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1305
+   *     google/container/v1beta1/cluster_service.proto;l=1309
    * @return The clusterIpv4Cidr.
    */
   @java.lang.Override
@@ -682,7 +525,7 @@ public java.lang.String getClusterIpv4Cidr() {
    * string cluster_ipv4_cidr = 4 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1305
+   *     google/container/v1beta1/cluster_service.proto;l=1309
    * @return The bytes for clusterIpv4Cidr.
    */
   @java.lang.Override
@@ -711,7 +554,7 @@ public com.google.protobuf.ByteString getClusterIpv4CidrBytes() {
    * string node_ipv4_cidr = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1308
+   *     google/container/v1beta1/cluster_service.proto;l=1312
    * @return The nodeIpv4Cidr.
    */
   @java.lang.Override
@@ -737,7 +580,7 @@ public java.lang.String getNodeIpv4Cidr() {
    * string node_ipv4_cidr = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1308
+   *     google/container/v1beta1/cluster_service.proto;l=1312
    * @return The bytes for nodeIpv4Cidr.
    */
   @java.lang.Override
@@ -766,7 +609,7 @@ public com.google.protobuf.ByteString getNodeIpv4CidrBytes() {
    * string services_ipv4_cidr = 6 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1311
+   *     google/container/v1beta1/cluster_service.proto;l=1315
    * @return The servicesIpv4Cidr.
    */
   @java.lang.Override
@@ -792,7 +635,7 @@ public java.lang.String getServicesIpv4Cidr() {
    * string services_ipv4_cidr = 6 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1311
+   *     google/container/v1beta1/cluster_service.proto;l=1315
    * @return The bytes for servicesIpv4Cidr.
    */
   @java.lang.Override
@@ -1499,7 +1342,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(servicesIpv6CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 23, servicesIpv6CidrBlock_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1569,7 +1412,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(servicesIpv6CidrBlock_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(23, servicesIpv6CidrBlock_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1604,7 +1447,7 @@ public boolean equals(final java.lang.Object obj) {
     if (ipv6AccessType_ != other.ipv6AccessType_) return false;
     if (!getSubnetIpv6CidrBlock().equals(other.getSubnetIpv6CidrBlock())) return false;
     if (!getServicesIpv6CidrBlock().equals(other.getServicesIpv6CidrBlock())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1651,7 +1494,7 @@ public int hashCode() {
     hash = (53 * hash) + getSubnetIpv6CidrBlock().hashCode();
     hash = (37 * hash) + SERVICES_IPV6_CIDR_BLOCK_FIELD_NUMBER;
     hash = (53 * hash) + getServicesIpv6CidrBlock().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1780,17 +1623,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.IPAllocationPolicy.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1993,7 +1829,7 @@ public Builder mergeFrom(com.google.container.v1beta1.IPAllocationPolicy other)
         servicesIpv6CidrBlock_ = other.servicesIpv6CidrBlock_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -2008,17 +1844,139 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.IPAllocationPolicy parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                useIpAliases_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                createSubnetwork_ = input.readBool();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                subnetworkName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                clusterIpv4Cidr_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                nodeIpv4Cidr_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                servicesIpv4Cidr_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 58:
+              {
+                clusterSecondaryRangeName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                servicesSecondaryRangeName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 74:
+              {
+                clusterIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 82:
+              {
+                nodeIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 82
+            case 90:
+              {
+                servicesIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 90
+            case 96:
+              {
+                allowRouteOverlap_ = input.readBool();
+
+                break;
+              } // case 96
+            case 106:
+              {
+                tpuIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 106
+            case 120:
+              {
+                useRoutes_ = input.readBool();
+
+                break;
+              } // case 120
+            case 128:
+              {
+                stackType_ = input.readEnum();
+
+                break;
+              } // case 128
+            case 136:
+              {
+                ipv6AccessType_ = input.readEnum();
+
+                break;
+              } // case 136
+            case 178:
+              {
+                subnetIpv6CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 178
+            case 186:
+              {
+                servicesIpv6CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 186
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.IPAllocationPolicy) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2265,7 +2223,7 @@ public Builder setSubnetworkNameBytes(com.google.protobuf.ByteString value) {
      * string cluster_ipv4_cidr = 4 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1305
+     *     google/container/v1beta1/cluster_service.proto;l=1309
      * @return The clusterIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -2290,7 +2248,7 @@ public java.lang.String getClusterIpv4Cidr() {
      * string cluster_ipv4_cidr = 4 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1305
+     *     google/container/v1beta1/cluster_service.proto;l=1309
      * @return The bytes for clusterIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -2315,7 +2273,7 @@ public com.google.protobuf.ByteString getClusterIpv4CidrBytes() {
      * string cluster_ipv4_cidr = 4 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1305
+     *     google/container/v1beta1/cluster_service.proto;l=1309
      * @param value The clusterIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -2339,7 +2297,7 @@ public Builder setClusterIpv4Cidr(java.lang.String value) {
      * string cluster_ipv4_cidr = 4 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1305
+     *     google/container/v1beta1/cluster_service.proto;l=1309
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2359,7 +2317,7 @@ public Builder clearClusterIpv4Cidr() {
      * string cluster_ipv4_cidr = 4 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1305
+     *     google/container/v1beta1/cluster_service.proto;l=1309
      * @param value The bytes for clusterIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -2386,7 +2344,7 @@ public Builder setClusterIpv4CidrBytes(com.google.protobuf.ByteString value) {
      * string node_ipv4_cidr = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1308
+     *     google/container/v1beta1/cluster_service.proto;l=1312
      * @return The nodeIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -2411,7 +2369,7 @@ public java.lang.String getNodeIpv4Cidr() {
      * string node_ipv4_cidr = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1308
+     *     google/container/v1beta1/cluster_service.proto;l=1312
      * @return The bytes for nodeIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -2436,7 +2394,7 @@ public com.google.protobuf.ByteString getNodeIpv4CidrBytes() {
      * string node_ipv4_cidr = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1308
+     *     google/container/v1beta1/cluster_service.proto;l=1312
      * @param value The nodeIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -2460,7 +2418,7 @@ public Builder setNodeIpv4Cidr(java.lang.String value) {
      * string node_ipv4_cidr = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1308
+     *     google/container/v1beta1/cluster_service.proto;l=1312
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2480,7 +2438,7 @@ public Builder clearNodeIpv4Cidr() {
      * string node_ipv4_cidr = 5 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1308
+     *     google/container/v1beta1/cluster_service.proto;l=1312
      * @param value The bytes for nodeIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -2507,7 +2465,7 @@ public Builder setNodeIpv4CidrBytes(com.google.protobuf.ByteString value) {
      * string services_ipv4_cidr = 6 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1311
+     *     google/container/v1beta1/cluster_service.proto;l=1315
      * @return The servicesIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -2532,7 +2490,7 @@ public java.lang.String getServicesIpv4Cidr() {
      * string services_ipv4_cidr = 6 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1311
+     *     google/container/v1beta1/cluster_service.proto;l=1315
      * @return The bytes for servicesIpv4Cidr.
      */
     @java.lang.Deprecated
@@ -2557,7 +2515,7 @@ public com.google.protobuf.ByteString getServicesIpv4CidrBytes() {
      * string services_ipv4_cidr = 6 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1311
+     *     google/container/v1beta1/cluster_service.proto;l=1315
      * @param value The servicesIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -2581,7 +2539,7 @@ public Builder setServicesIpv4Cidr(java.lang.String value) {
      * string services_ipv4_cidr = 6 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1311
+     *     google/container/v1beta1/cluster_service.proto;l=1315
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2601,7 +2559,7 @@ public Builder clearServicesIpv4Cidr() {
      * string services_ipv4_cidr = 6 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1311
+     *     google/container/v1beta1/cluster_service.proto;l=1315
      * @param value The bytes for servicesIpv4Cidr to set.
      * @return This builder for chaining.
      */
@@ -4087,7 +4045,18 @@ public IPAllocationPolicy parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new IPAllocationPolicy(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IPAllocationPolicyOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IPAllocationPolicyOrBuilder.java
index 1798fa35..c7aa173f 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IPAllocationPolicyOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IPAllocationPolicyOrBuilder.java
@@ -92,7 +92,7 @@ public interface IPAllocationPolicyOrBuilder
    * string cluster_ipv4_cidr = 4 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1305
+   *     google/container/v1beta1/cluster_service.proto;l=1309
    * @return The clusterIpv4Cidr.
    */
   @java.lang.Deprecated
@@ -107,7 +107,7 @@ public interface IPAllocationPolicyOrBuilder
    * string cluster_ipv4_cidr = 4 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.cluster_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1305
+   *     google/container/v1beta1/cluster_service.proto;l=1309
    * @return The bytes for clusterIpv4Cidr.
    */
   @java.lang.Deprecated
@@ -123,7 +123,7 @@ public interface IPAllocationPolicyOrBuilder
    * string node_ipv4_cidr = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1308
+   *     google/container/v1beta1/cluster_service.proto;l=1312
    * @return The nodeIpv4Cidr.
    */
   @java.lang.Deprecated
@@ -138,7 +138,7 @@ public interface IPAllocationPolicyOrBuilder
    * string node_ipv4_cidr = 5 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.node_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1308
+   *     google/container/v1beta1/cluster_service.proto;l=1312
    * @return The bytes for nodeIpv4Cidr.
    */
   @java.lang.Deprecated
@@ -154,7 +154,7 @@ public interface IPAllocationPolicyOrBuilder
    * string services_ipv4_cidr = 6 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1311
+   *     google/container/v1beta1/cluster_service.proto;l=1315
    * @return The servicesIpv4Cidr.
    */
   @java.lang.Deprecated
@@ -169,7 +169,7 @@ public interface IPAllocationPolicyOrBuilder
    * string services_ipv4_cidr = 6 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IPAllocationPolicy.services_ipv4_cidr is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1311
+   *     google/container/v1beta1/cluster_service.proto;l=1315
    * @return The bytes for servicesIpv4Cidr.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IdentityServiceConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IdentityServiceConfig.java
index 04cab77b..f74ade12 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IdentityServiceConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IdentityServiceConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private IdentityServiceConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_IdentityServiceConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.IdentityServiceConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.IdentityServiceConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -416,7 +365,7 @@ public Builder mergeFrom(com.google.container.v1beta1.IdentityServiceConfig othe
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -431,18 +380,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.IdentityServiceConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.IdentityServiceConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -530,7 +498,18 @@ public IdentityServiceConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new IdentityServiceConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IntraNodeVisibilityConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IntraNodeVisibilityConfig.java
index d6250243..f2fb9d76 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IntraNodeVisibilityConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IntraNodeVisibilityConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private IntraNodeVisibilityConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_IntraNodeVisibilityConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.IntraNodeVisibilityConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -318,17 +274,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.IntraNodeVisibilityConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -417,7 +366,7 @@ public Builder mergeFrom(com.google.container.v1beta1.IntraNodeVisibilityConfig
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -432,18 +381,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.IntraNodeVisibilityConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.IntraNodeVisibilityConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -531,7 +499,18 @@ public IntraNodeVisibilityConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new IntraNodeVisibilityConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IstioConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IstioConfig.java
index 96a01740..fe84cbe6 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IstioConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IstioConfig.java
@@ -52,57 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private IstioConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              auth_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_IstioConfig_descriptor;
@@ -265,7 +214,7 @@ private IstioAuthMode(int value) {
    * bool disabled = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IstioConfig.disabled is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1184
+   *     google/container/v1beta1/cluster_service.proto;l=1188
    * @return The disabled.
    */
   @java.lang.Override
@@ -286,7 +235,7 @@ public boolean getDisabled() {
    * .google.container.v1beta1.IstioConfig.IstioAuthMode auth = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IstioConfig.auth is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1187
+   *     google/container/v1beta1/cluster_service.proto;l=1191
    * @return The enum numeric value on the wire for auth.
    */
   @java.lang.Override
@@ -304,7 +253,7 @@ public int getAuthValue() {
    * .google.container.v1beta1.IstioConfig.IstioAuthMode auth = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IstioConfig.auth is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1187
+   *     google/container/v1beta1/cluster_service.proto;l=1191
    * @return The auth.
    */
   @java.lang.Override
@@ -338,7 +287,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (auth_ != com.google.container.v1beta1.IstioConfig.IstioAuthMode.AUTH_NONE.getNumber()) {
       output.writeEnum(2, auth_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -353,7 +302,7 @@ public int getSerializedSize() {
     if (auth_ != com.google.container.v1beta1.IstioConfig.IstioAuthMode.AUTH_NONE.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, auth_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -370,7 +319,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getDisabled() != other.getDisabled()) return false;
     if (auth_ != other.auth_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -385,7 +334,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
     hash = (37 * hash) + AUTH_FIELD_NUMBER;
     hash = (53 * hash) + auth_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -514,17 +463,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.IstioConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -618,7 +560,7 @@ public Builder mergeFrom(com.google.container.v1beta1.IstioConfig other) {
       if (other.auth_ != 0) {
         setAuthValue(other.getAuthValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -633,17 +575,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.IstioConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                auth_ = input.readEnum();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.IstioConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -658,7 +626,7 @@ public Builder mergeFrom(
      * bool disabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IstioConfig.disabled is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1184
+     *     google/container/v1beta1/cluster_service.proto;l=1188
      * @return The disabled.
      */
     @java.lang.Override
@@ -676,7 +644,7 @@ public boolean getDisabled() {
      * bool disabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IstioConfig.disabled is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1184
+     *     google/container/v1beta1/cluster_service.proto;l=1188
      * @param value The disabled to set.
      * @return This builder for chaining.
      */
@@ -697,7 +665,7 @@ public Builder setDisabled(boolean value) {
      * bool disabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.IstioConfig.disabled is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1184
+     *     google/container/v1beta1/cluster_service.proto;l=1188
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -720,7 +688,7 @@ public Builder clearDisabled() {
      * 
      *
      * @deprecated google.container.v1beta1.IstioConfig.auth is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1187
+     *     google/container/v1beta1/cluster_service.proto;l=1191
      * @return The enum numeric value on the wire for auth.
      */
     @java.lang.Override
@@ -739,7 +707,7 @@ public int getAuthValue() {
      * 
      *
      * @deprecated google.container.v1beta1.IstioConfig.auth is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1187
+     *     google/container/v1beta1/cluster_service.proto;l=1191
      * @param value The enum numeric value on the wire for auth to set.
      * @return This builder for chaining.
      */
@@ -761,7 +729,7 @@ public Builder setAuthValue(int value) {
      * 
      *
      * @deprecated google.container.v1beta1.IstioConfig.auth is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1187
+     *     google/container/v1beta1/cluster_service.proto;l=1191
      * @return The auth.
      */
     @java.lang.Override
@@ -785,7 +753,7 @@ public com.google.container.v1beta1.IstioConfig.IstioAuthMode getAuth() {
      * 
      *
      * @deprecated google.container.v1beta1.IstioConfig.auth is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1187
+     *     google/container/v1beta1/cluster_service.proto;l=1191
      * @param value The auth to set.
      * @return This builder for chaining.
      */
@@ -810,7 +778,7 @@ public Builder setAuth(com.google.container.v1beta1.IstioConfig.IstioAuthMode va
      * 
      *
      * @deprecated google.container.v1beta1.IstioConfig.auth is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1187
+     *     google/container/v1beta1/cluster_service.proto;l=1191
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -853,7 +821,18 @@ public IstioConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new IstioConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IstioConfigOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IstioConfigOrBuilder.java
index 981835d5..65e198cb 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IstioConfigOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/IstioConfigOrBuilder.java
@@ -33,7 +33,7 @@ public interface IstioConfigOrBuilder
    * bool disabled = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IstioConfig.disabled is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1184
+   *     google/container/v1beta1/cluster_service.proto;l=1188
    * @return The disabled.
    */
   @java.lang.Deprecated
@@ -49,7 +49,7 @@ public interface IstioConfigOrBuilder
    * .google.container.v1beta1.IstioConfig.IstioAuthMode auth = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IstioConfig.auth is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1187
+   *     google/container/v1beta1/cluster_service.proto;l=1191
    * @return The enum numeric value on the wire for auth.
    */
   @java.lang.Deprecated
@@ -64,7 +64,7 @@ public interface IstioConfigOrBuilder
    * .google.container.v1beta1.IstioConfig.IstioAuthMode auth = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.IstioConfig.auth is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1187
+   *     google/container/v1beta1/cluster_service.proto;l=1191
    * @return The auth.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Jwk.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Jwk.java
index 70a3c504..87ffec8e 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Jwk.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Jwk.java
@@ -60,108 +60,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private Jwk(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              kty_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              alg_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              use_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              kid_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              n_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              e_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              x_ = s;
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              y_ = s;
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              crv_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_Jwk_descriptor;
@@ -658,7 +556,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(crv_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 9, crv_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -694,7 +592,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(crv_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(9, crv_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -718,7 +616,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getX().equals(other.getX())) return false;
     if (!getY().equals(other.getY())) return false;
     if (!getCrv().equals(other.getCrv())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -747,7 +645,7 @@ public int hashCode() {
     hash = (53 * hash) + getY().hashCode();
     hash = (37 * hash) + CRV_FIELD_NUMBER;
     hash = (53 * hash) + getCrv().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -875,17 +773,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.Jwk.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1029,7 +920,7 @@ public Builder mergeFrom(com.google.container.v1beta1.Jwk other) {
         crv_ = other.crv_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1044,17 +935,85 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.Jwk parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                kty_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                alg_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                use_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                kid_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                n_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                e_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 58:
+              {
+                x_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                y_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 74:
+              {
+                crv_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.Jwk) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2044,7 +2003,18 @@ public Jwk parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new Jwk(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KalmConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KalmConfig.java
index c774b159..fd5cc5ba 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KalmConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KalmConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private KalmConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_KalmConfig_descriptor;
@@ -121,7 +77,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * bool enabled = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.KalmConfig.enabled is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1110
+   *     google/container/v1beta1/cluster_service.proto;l=1114
    * @return The enabled.
    */
   @java.lang.Override
@@ -147,7 +103,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -159,7 +115,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -175,7 +131,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1beta1.KalmConfig other = (com.google.container.v1beta1.KalmConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -188,7 +144,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.KalmConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1beta1.KalmConfig other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,17 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.KalmConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.KalmConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -455,7 +424,7 @@ public Builder mergeFrom(
      * bool enabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.KalmConfig.enabled is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1110
+     *     google/container/v1beta1/cluster_service.proto;l=1114
      * @return The enabled.
      */
     @java.lang.Override
@@ -473,7 +442,7 @@ public boolean getEnabled() {
      * bool enabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.KalmConfig.enabled is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1110
+     *     google/container/v1beta1/cluster_service.proto;l=1114
      * @param value The enabled to set.
      * @return This builder for chaining.
      */
@@ -494,7 +463,7 @@ public Builder setEnabled(boolean value) {
      * bool enabled = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.KalmConfig.enabled is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=1110
+     *     google/container/v1beta1/cluster_service.proto;l=1114
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -537,7 +506,18 @@ public KalmConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new KalmConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KalmConfigOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KalmConfigOrBuilder.java
index dce80c7b..2649e236 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KalmConfigOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KalmConfigOrBuilder.java
@@ -33,7 +33,7 @@ public interface KalmConfigOrBuilder
    * bool enabled = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.KalmConfig.enabled is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=1110
+   *     google/container/v1beta1/cluster_service.proto;l=1114
    * @return The enabled.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KubernetesDashboard.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KubernetesDashboard.java
index d6217d6c..17aa37d8 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KubernetesDashboard.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/KubernetesDashboard.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private KubernetesDashboard(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_KubernetesDashboard_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (disabled_ != false) {
       output.writeBool(1, disabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (disabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, disabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.KubernetesDashboard) obj;
 
     if (getDisabled() != other.getDisabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DISABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.KubernetesDashboard.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -414,7 +363,7 @@ public Builder mergeFrom(com.google.container.v1beta1.KubernetesDashboard other)
       if (other.getDisabled() != false) {
         setDisabled(other.getDisabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -429,17 +378,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.KubernetesDashboard parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.KubernetesDashboard) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -527,7 +496,18 @@ public KubernetesDashboard parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new KubernetesDashboard(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LegacyAbac.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LegacyAbac.java
index 87ecafa3..e168b42c 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LegacyAbac.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LegacyAbac.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private LegacyAbac(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_LegacyAbac_descriptor;
@@ -148,7 +104,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -160,7 +116,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -176,7 +132,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1beta1.LegacyAbac other = (com.google.container.v1beta1.LegacyAbac) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -189,7 +145,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -319,17 +275,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.LegacyAbac.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -417,7 +366,7 @@ public Builder mergeFrom(com.google.container.v1beta1.LegacyAbac other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -432,17 +381,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.LegacyAbac parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.LegacyAbac) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -539,7 +508,18 @@ public LegacyAbac parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new LegacyAbac(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LinuxNodeConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LinuxNodeConfig.java
index dc0fe2ad..7936ee9a 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LinuxNodeConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LinuxNodeConfig.java
@@ -52,67 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private LinuxNodeConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                sysctls_ =
-                    com.google.protobuf.MapField.newMapField(
-                        SysctlsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000001;
-              }
-              com.google.protobuf.MapEntry sysctls__ =
-                  input.readMessage(
-                      SysctlsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
-              sysctls_.getMutableMap().put(sysctls__.getKey(), sysctls__.getValue());
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              cgroupMode_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_LinuxNodeConfig_descriptor;
@@ -511,7 +450,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
             .getNumber()) {
       output.writeEnum(2, cgroupMode_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -535,7 +474,7 @@ public int getSerializedSize() {
             .getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, cgroupMode_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -553,7 +492,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!internalGetSysctls().equals(other.internalGetSysctls())) return false;
     if (cgroupMode_ != other.cgroupMode_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -570,7 +509,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + CGROUP_MODE_FIELD_NUMBER;
     hash = (53 * hash) + cgroupMode_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -719,17 +658,10 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1beta1.LinuxNodeConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -822,7 +754,7 @@ public Builder mergeFrom(com.google.container.v1beta1.LinuxNodeConfig other) {
       if (other.cgroupMode_ != 0) {
         setCgroupModeValue(other.getCgroupModeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -837,17 +769,48 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.LinuxNodeConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.protobuf.MapEntry sysctls__ =
+                    input.readMessage(
+                        SysctlsDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableSysctls()
+                    .getMutableMap()
+                    .put(sysctls__.getKey(), sysctls__.getValue());
+                break;
+              } // case 10
+            case 16:
+              {
+                cgroupMode_ = input.readEnum();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.LinuxNodeConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1227,7 +1190,18 @@ public LinuxNodeConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new LinuxNodeConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersRequest.java
index 5be470c8..9c747ab0 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersRequest.java
@@ -54,66 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListClustersRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ListClustersRequest_descriptor;
@@ -144,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.ListClustersRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2836
+   *     google/container/v1beta1/cluster_service.proto;l=2849
    * @return The projectId.
    */
   @java.lang.Override
@@ -173,7 +113,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.ListClustersRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2836
+   *     google/container/v1beta1/cluster_service.proto;l=2849
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -205,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListClustersRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2845
+   *     google/container/v1beta1/cluster_service.proto;l=2858
    * @return The zone.
    */
   @java.lang.Override
@@ -234,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListClustersRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2845
+   *     google/container/v1beta1/cluster_service.proto;l=2858
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -327,7 +267,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -345,7 +285,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -364,7 +304,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getProjectId().equals(other.getProjectId())) return false;
     if (!getZone().equals(other.getZone())) return false;
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -381,7 +321,7 @@ public int hashCode() {
     hash = (53 * hash) + getZone().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -510,17 +450,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ListClustersRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -624,7 +557,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ListClustersRequest other)
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -639,17 +572,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ListClustersRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 34:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ListClustersRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -667,7 +632,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.ListClustersRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2836
+     *     google/container/v1beta1/cluster_service.proto;l=2849
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -695,7 +660,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.ListClustersRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2836
+     *     google/container/v1beta1/cluster_service.proto;l=2849
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -723,7 +688,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.ListClustersRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2836
+     *     google/container/v1beta1/cluster_service.proto;l=2849
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -750,7 +715,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.ListClustersRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2836
+     *     google/container/v1beta1/cluster_service.proto;l=2849
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -773,7 +738,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.ListClustersRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2836
+     *     google/container/v1beta1/cluster_service.proto;l=2849
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -803,7 +768,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListClustersRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2845
+     *     google/container/v1beta1/cluster_service.proto;l=2858
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -831,7 +796,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListClustersRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2845
+     *     google/container/v1beta1/cluster_service.proto;l=2858
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -859,7 +824,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListClustersRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2845
+     *     google/container/v1beta1/cluster_service.proto;l=2858
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -886,7 +851,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListClustersRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2845
+     *     google/container/v1beta1/cluster_service.proto;l=2858
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -909,7 +874,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListClustersRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2845
+     *     google/container/v1beta1/cluster_service.proto;l=2858
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1073,7 +1038,18 @@ public ListClustersRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListClustersRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersRequestOrBuilder.java
index 8fd22831..aefdcbaf 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface ListClustersRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.ListClustersRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2836
+   *     google/container/v1beta1/cluster_service.proto;l=2849
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface ListClustersRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.ListClustersRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2836
+   *     google/container/v1beta1/cluster_service.proto;l=2849
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface ListClustersRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListClustersRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2845
+   *     google/container/v1beta1/cluster_service.proto;l=2858
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface ListClustersRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListClustersRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2845
+   *     google/container/v1beta1/cluster_service.proto;l=2858
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersResponse.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersResponse.java
index a83f90b1..df73c92b 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersResponse.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListClustersResponse.java
@@ -53,73 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListClustersResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                clusters_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              clusters_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.Cluster.parser(), extensionRegistry));
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                missingZones_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              missingZones_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        clusters_ = java.util.Collections.unmodifiableList(clusters_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        missingZones_ = missingZones_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ListClustersResponse_descriptor;
@@ -294,7 +227,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < missingZones_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, missingZones_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -314,7 +247,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getMissingZonesList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -332,7 +265,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getClustersList().equals(other.getClustersList())) return false;
     if (!getMissingZonesList().equals(other.getMissingZonesList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -351,7 +284,7 @@ public int hashCode() {
       hash = (37 * hash) + MISSING_ZONES_FIELD_NUMBER;
       hash = (53 * hash) + getMissingZonesList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -480,19 +413,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ListClustersResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getClustersFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -500,10 +424,11 @@ public Builder clear() {
       super.clear();
       if (clustersBuilder_ == null) {
         clusters_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        clusters_ = null;
         clustersBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       missingZones_ = com.google.protobuf.LazyStringArrayList.EMPTY;
       bitField0_ = (bitField0_ & ~0x00000002);
       return this;
@@ -635,7 +560,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ListClustersResponse other
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -650,18 +575,51 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ListClustersResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1beta1.Cluster m =
+                    input.readMessage(
+                        com.google.container.v1beta1.Cluster.parser(), extensionRegistry);
+                if (clustersBuilder_ == null) {
+                  ensureClustersIsMutable();
+                  clusters_.add(m);
+                } else {
+                  clustersBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureMissingZonesIsMutable();
+                missingZones_.add(s);
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ListClustersResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1242,7 +1200,18 @@ public ListClustersResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListClustersResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListLocationsRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListLocationsRequest.java
index b5c7f7dc..14439469 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListLocationsRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListLocationsRequest.java
@@ -52,52 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListLocationsRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ListLocationsRequest_descriptor;
@@ -181,7 +135,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -193,7 +147,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -210,7 +164,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.ListLocationsRequest) obj;
 
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -223,7 +177,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -352,17 +306,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ListLocationsRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -452,7 +399,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ListLocationsRequest other
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -467,18 +414,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ListLocationsRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ListLocationsRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -625,7 +591,18 @@ public ListLocationsRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListLocationsRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListLocationsResponse.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListLocationsResponse.java
index b18d81af..982509c8 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListLocationsResponse.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListLocationsResponse.java
@@ -54,67 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListLocationsResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                locations_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              locations_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.Location.parser(), extensionRegistry));
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nextPageToken_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        locations_ = java.util.Collections.unmodifiableList(locations_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ListLocationsResponse_descriptor;
@@ -274,7 +213,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -289,7 +228,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -307,7 +246,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getLocationsList().equals(other.getLocationsList())) return false;
     if (!getNextPageToken().equals(other.getNextPageToken())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -324,7 +263,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
     hash = (53 * hash) + getNextPageToken().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -454,19 +393,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ListLocationsResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getLocationsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -474,10 +404,11 @@ public Builder clear() {
       super.clear();
       if (locationsBuilder_ == null) {
         locations_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        locations_ = null;
         locationsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       nextPageToken_ = "";
 
       return this;
@@ -599,7 +530,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ListLocationsResponse othe
         nextPageToken_ = other.nextPageToken_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -614,18 +545,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ListLocationsResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1beta1.Location m =
+                    input.readMessage(
+                        com.google.container.v1beta1.Location.parser(), extensionRegistry);
+                if (locationsBuilder_ == null) {
+                  ensureLocationsIsMutable();
+                  locations_.add(m);
+                } else {
+                  locationsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            case 18:
+              {
+                nextPageToken_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ListLocationsResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1132,7 +1095,18 @@ public ListLocationsResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListLocationsResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsRequest.java
index 9c85c848..3c269f6c 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsRequest.java
@@ -55,73 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListNodePoolsRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ListNodePoolsRequest_descriptor;
@@ -152,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3137
+   *     google/container/v1beta1/cluster_service.proto;l=3150
    * @return The projectId.
    */
   @java.lang.Override
@@ -181,7 +114,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3137
+   *     google/container/v1beta1/cluster_service.proto;l=3150
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -213,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3146
+   *     google/container/v1beta1/cluster_service.proto;l=3159
    * @return The zone.
    */
   @java.lang.Override
@@ -242,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3146
+   *     google/container/v1beta1/cluster_service.proto;l=3159
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -273,7 +206,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3153
+   *     google/container/v1beta1/cluster_service.proto;l=3166
    * @return The clusterId.
    */
   @java.lang.Override
@@ -301,7 +234,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3153
+   *     google/container/v1beta1/cluster_service.proto;l=3166
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -395,7 +328,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -416,7 +349,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -436,7 +369,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getZone().equals(other.getZone())) return false;
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -455,7 +388,7 @@ public int hashCode() {
     hash = (53 * hash) + getClusterId().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -584,17 +517,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ListNodePoolsRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -705,7 +631,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ListNodePoolsRequest other
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -720,18 +646,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ListNodePoolsRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 42:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ListNodePoolsRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -749,7 +712,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3137
+     *     google/container/v1beta1/cluster_service.proto;l=3150
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -777,7 +740,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3137
+     *     google/container/v1beta1/cluster_service.proto;l=3150
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -805,7 +768,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3137
+     *     google/container/v1beta1/cluster_service.proto;l=3150
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -832,7 +795,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3137
+     *     google/container/v1beta1/cluster_service.proto;l=3150
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -855,7 +818,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3137
+     *     google/container/v1beta1/cluster_service.proto;l=3150
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -885,7 +848,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3146
+     *     google/container/v1beta1/cluster_service.proto;l=3159
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -913,7 +876,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3146
+     *     google/container/v1beta1/cluster_service.proto;l=3159
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -941,7 +904,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3146
+     *     google/container/v1beta1/cluster_service.proto;l=3159
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -968,7 +931,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3146
+     *     google/container/v1beta1/cluster_service.proto;l=3159
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -991,7 +954,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3146
+     *     google/container/v1beta1/cluster_service.proto;l=3159
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1020,7 +983,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3153
+     *     google/container/v1beta1/cluster_service.proto;l=3166
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1047,7 +1010,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3153
+     *     google/container/v1beta1/cluster_service.proto;l=3166
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1074,7 +1037,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3153
+     *     google/container/v1beta1/cluster_service.proto;l=3166
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1100,7 +1063,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3153
+     *     google/container/v1beta1/cluster_service.proto;l=3166
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1122,7 +1085,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.ListNodePoolsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3153
+     *     google/container/v1beta1/cluster_service.proto;l=3166
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1281,7 +1244,18 @@ public ListNodePoolsRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListNodePoolsRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsRequestOrBuilder.java
index de64c8b2..4c73d748 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface ListNodePoolsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3137
+   *     google/container/v1beta1/cluster_service.proto;l=3150
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface ListNodePoolsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3137
+   *     google/container/v1beta1/cluster_service.proto;l=3150
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface ListNodePoolsRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3146
+   *     google/container/v1beta1/cluster_service.proto;l=3159
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface ListNodePoolsRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3146
+   *     google/container/v1beta1/cluster_service.proto;l=3159
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface ListNodePoolsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3153
+   *     google/container/v1beta1/cluster_service.proto;l=3166
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface ListNodePoolsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.ListNodePoolsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3153
+   *     google/container/v1beta1/cluster_service.proto;l=3166
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsResponse.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsResponse.java
index d42ab21d..477ff749 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsResponse.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListNodePoolsResponse.java
@@ -52,60 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListNodePoolsResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                nodePools_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              nodePools_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePool.parser(), extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        nodePools_ = java.util.Collections.unmodifiableList(nodePools_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ListNodePoolsResponse_descriptor;
@@ -207,7 +153,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < nodePools_.size(); i++) {
       output.writeMessage(1, nodePools_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -219,7 +165,7 @@ public int getSerializedSize() {
     for (int i = 0; i < nodePools_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, nodePools_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -236,7 +182,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.ListNodePoolsResponse) obj;
 
     if (!getNodePoolsList().equals(other.getNodePoolsList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -251,7 +197,7 @@ public int hashCode() {
       hash = (37 * hash) + NODE_POOLS_FIELD_NUMBER;
       hash = (53 * hash) + getNodePoolsList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -380,19 +326,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ListNodePoolsResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getNodePoolsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -400,10 +337,11 @@ public Builder clear() {
       super.clear();
       if (nodePoolsBuilder_ == null) {
         nodePools_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        nodePools_ = null;
         nodePoolsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       return this;
     }
 
@@ -518,7 +456,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ListNodePoolsResponse othe
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -533,18 +471,44 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ListNodePoolsResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1beta1.NodePool m =
+                    input.readMessage(
+                        com.google.container.v1beta1.NodePool.parser(), extensionRegistry);
+                if (nodePoolsBuilder_ == null) {
+                  ensureNodePoolsIsMutable();
+                  nodePools_.add(m);
+                } else {
+                  nodePoolsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ListNodePoolsResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -930,7 +894,18 @@ public ListNodePoolsResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListNodePoolsResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsRequest.java
index 33d1034b..c20a21ed 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsRequest.java
@@ -54,66 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListOperationsRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ListOperationsRequest_descriptor;
@@ -144,7 +84,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.ListOperationsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2903
+   *     google/container/v1beta1/cluster_service.proto;l=2916
    * @return The projectId.
    */
   @java.lang.Override
@@ -173,7 +113,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.ListOperationsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2903
+   *     google/container/v1beta1/cluster_service.proto;l=2916
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -205,7 +145,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListOperationsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2912
+   *     google/container/v1beta1/cluster_service.proto;l=2925
    * @return The zone.
    */
   @java.lang.Override
@@ -234,7 +174,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListOperationsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2912
+   *     google/container/v1beta1/cluster_service.proto;l=2925
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -327,7 +267,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, parent_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -345,7 +285,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(parent_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, parent_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -364,7 +304,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getProjectId().equals(other.getProjectId())) return false;
     if (!getZone().equals(other.getZone())) return false;
     if (!getParent().equals(other.getParent())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -381,7 +321,7 @@ public int hashCode() {
     hash = (53 * hash) + getZone().hashCode();
     hash = (37 * hash) + PARENT_FIELD_NUMBER;
     hash = (53 * hash) + getParent().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -510,17 +450,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ListOperationsRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -624,7 +557,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ListOperationsRequest othe
         parent_ = other.parent_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -639,18 +572,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ListOperationsRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 34:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ListOperationsRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -668,7 +632,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.ListOperationsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2903
+     *     google/container/v1beta1/cluster_service.proto;l=2916
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -696,7 +660,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.ListOperationsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2903
+     *     google/container/v1beta1/cluster_service.proto;l=2916
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -724,7 +688,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.ListOperationsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2903
+     *     google/container/v1beta1/cluster_service.proto;l=2916
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -751,7 +715,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.ListOperationsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2903
+     *     google/container/v1beta1/cluster_service.proto;l=2916
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -774,7 +738,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.ListOperationsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2903
+     *     google/container/v1beta1/cluster_service.proto;l=2916
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -804,7 +768,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListOperationsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2912
+     *     google/container/v1beta1/cluster_service.proto;l=2925
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -832,7 +796,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListOperationsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2912
+     *     google/container/v1beta1/cluster_service.proto;l=2925
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -860,7 +824,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListOperationsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2912
+     *     google/container/v1beta1/cluster_service.proto;l=2925
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -887,7 +851,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListOperationsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2912
+     *     google/container/v1beta1/cluster_service.proto;l=2925
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -910,7 +874,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.ListOperationsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2912
+     *     google/container/v1beta1/cluster_service.proto;l=2925
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1074,7 +1038,18 @@ public ListOperationsRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListOperationsRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsRequestOrBuilder.java
index e87e9184..edf71d46 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface ListOperationsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.ListOperationsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2903
+   *     google/container/v1beta1/cluster_service.proto;l=2916
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface ListOperationsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.ListOperationsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2903
+   *     google/container/v1beta1/cluster_service.proto;l=2916
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface ListOperationsRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListOperationsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2912
+   *     google/container/v1beta1/cluster_service.proto;l=2925
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface ListOperationsRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.ListOperationsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2912
+   *     google/container/v1beta1/cluster_service.proto;l=2925
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsResponse.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsResponse.java
index 944fa052..fb6498a8 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsResponse.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListOperationsResponse.java
@@ -53,73 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListOperationsResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                operations_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              operations_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.Operation.parser(), extensionRegistry));
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                missingZones_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              missingZones_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        operations_ = java.util.Collections.unmodifiableList(operations_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        missingZones_ = missingZones_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ListOperationsResponse_descriptor;
@@ -289,7 +222,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < missingZones_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, missingZones_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -309,7 +242,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getMissingZonesList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -327,7 +260,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getOperationsList().equals(other.getOperationsList())) return false;
     if (!getMissingZonesList().equals(other.getMissingZonesList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -346,7 +279,7 @@ public int hashCode() {
       hash = (37 * hash) + MISSING_ZONES_FIELD_NUMBER;
       hash = (53 * hash) + getMissingZonesList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -475,19 +408,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ListOperationsResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getOperationsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -495,10 +419,11 @@ public Builder clear() {
       super.clear();
       if (operationsBuilder_ == null) {
         operations_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        operations_ = null;
         operationsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       missingZones_ = com.google.protobuf.LazyStringArrayList.EMPTY;
       bitField0_ = (bitField0_ & ~0x00000002);
       return this;
@@ -630,7 +555,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ListOperationsResponse oth
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -645,18 +570,51 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ListOperationsResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1beta1.Operation m =
+                    input.readMessage(
+                        com.google.container.v1beta1.Operation.parser(), extensionRegistry);
+                if (operationsBuilder_ == null) {
+                  ensureOperationsIsMutable();
+                  operations_.add(m);
+                } else {
+                  operationsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureMissingZonesIsMutable();
+                missingZones_.add(s);
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ListOperationsResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1220,7 +1178,18 @@ public ListOperationsResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListOperationsResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListUsableSubnetworksRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListUsableSubnetworksRequest.java
index b19aa10f..33368fc1 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListUsableSubnetworksRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListUsableSubnetworksRequest.java
@@ -55,71 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListUsableSubnetworksRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              parent_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              filter_ = s;
-              break;
-            }
-          case 24:
-            {
-              pageSize_ = input.readInt32();
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              pageToken_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ListUsableSubnetworksRequest_descriptor;
@@ -339,7 +274,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 4, pageToken_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -360,7 +295,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(pageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, pageToken_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -380,7 +315,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getFilter().equals(other.getFilter())) return false;
     if (getPageSize() != other.getPageSize()) return false;
     if (!getPageToken().equals(other.getPageToken())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -399,7 +334,7 @@ public int hashCode() {
     hash = (53 * hash) + getPageSize();
     hash = (37 * hash) + PAGE_TOKEN_FIELD_NUMBER;
     hash = (53 * hash) + getPageToken().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -530,17 +465,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ListUsableSubnetworksRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -650,7 +578,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ListUsableSubnetworksReque
         pageToken_ = other.pageToken_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -665,18 +593,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ListUsableSubnetworksRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                parent_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                filter_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                pageSize_ = input.readInt32();
+
+                break;
+              } // case 24
+            case 34:
+              {
+                pageToken_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ListUsableSubnetworksRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1116,7 +1081,18 @@ public ListUsableSubnetworksRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListUsableSubnetworksRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListUsableSubnetworksResponse.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListUsableSubnetworksResponse.java
index 8384d8f2..232f03d0 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListUsableSubnetworksResponse.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ListUsableSubnetworksResponse.java
@@ -54,68 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ListUsableSubnetworksResponse(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                subnetworks_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              subnetworks_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.UsableSubnetwork.parser(), extensionRegistry));
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nextPageToken_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        subnetworks_ = java.util.Collections.unmodifiableList(subnetworks_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ListUsableSubnetworksResponse_descriptor;
@@ -275,7 +213,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, nextPageToken_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -290,7 +228,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(nextPageToken_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, nextPageToken_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -308,7 +246,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getSubnetworksList().equals(other.getSubnetworksList())) return false;
     if (!getNextPageToken().equals(other.getNextPageToken())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -325,7 +263,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NEXT_PAGE_TOKEN_FIELD_NUMBER;
     hash = (53 * hash) + getNextPageToken().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -456,19 +394,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ListUsableSubnetworksResponse.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getSubnetworksFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -476,10 +405,11 @@ public Builder clear() {
       super.clear();
       if (subnetworksBuilder_ == null) {
         subnetworks_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        subnetworks_ = null;
         subnetworksBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       nextPageToken_ = "";
 
       return this;
@@ -601,7 +531,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ListUsableSubnetworksRespo
         nextPageToken_ = other.nextPageToken_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -616,18 +546,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ListUsableSubnetworksResponse parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1beta1.UsableSubnetwork m =
+                    input.readMessage(
+                        com.google.container.v1beta1.UsableSubnetwork.parser(), extensionRegistry);
+                if (subnetworksBuilder_ == null) {
+                  ensureSubnetworksIsMutable();
+                  subnetworks_.add(m);
+                } else {
+                  subnetworksBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            case 18:
+              {
+                nextPageToken_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ListUsableSubnetworksResponse) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1138,7 +1100,18 @@ public ListUsableSubnetworksResponse parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ListUsableSubnetworksResponse(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Location.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Location.java
index a589f15e..95011d77 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Location.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Location.java
@@ -54,64 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private Location(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              type_ = rawValue;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 24:
-            {
-              recommended_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_Location_descriptor;
@@ -418,7 +360,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (recommended_ != false) {
       output.writeBool(3, recommended_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -438,7 +380,7 @@ public int getSerializedSize() {
     if (recommended_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(3, recommended_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -456,7 +398,7 @@ public boolean equals(final java.lang.Object obj) {
     if (type_ != other.type_) return false;
     if (!getName().equals(other.getName())) return false;
     if (getRecommended() != other.getRecommended()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -473,7 +415,7 @@ public int hashCode() {
     hash = (53 * hash) + getName().hashCode();
     hash = (37 * hash) + RECOMMENDED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getRecommended());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -602,17 +544,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.Location.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -713,7 +648,7 @@ public Builder mergeFrom(com.google.container.v1beta1.Location other) {
       if (other.getRecommended() != false) {
         setRecommended(other.getRecommended());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -728,17 +663,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.Location parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                type_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                recommended_ = input.readBool();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.Location) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1035,7 +1002,18 @@ public Location parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new Location(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingComponentConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingComponentConfig.java
index cce166f2..4e889f14 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingComponentConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingComponentConfig.java
@@ -52,74 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private LoggingComponentConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                enableComponents_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              enableComponents_.add(rawValue);
-              break;
-            }
-          case 10:
-            {
-              int length = input.readRawVarint32();
-              int oldLimit = input.pushLimit(length);
-              while (input.getBytesUntilLimit() > 0) {
-                int rawValue = input.readEnum();
-                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                  enableComponents_ = new java.util.ArrayList();
-                  mutable_bitField0_ |= 0x00000001;
-                }
-                enableComponents_.add(rawValue);
-              }
-              input.popLimit(oldLimit);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        enableComponents_ = java.util.Collections.unmodifiableList(enableComponents_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_LoggingComponentConfig_descriptor;
@@ -427,7 +359,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < enableComponents_.size(); i++) {
       output.writeEnumNoTag(enableComponents_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -449,7 +381,7 @@ public int getSerializedSize() {
       }
       enableComponentsMemoizedSerializedSize = dataSize;
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -466,7 +398,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.LoggingComponentConfig) obj;
 
     if (!enableComponents_.equals(other.enableComponents_)) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -481,7 +413,7 @@ public int hashCode() {
       hash = (37 * hash) + ENABLE_COMPONENTS_FIELD_NUMBER;
       hash = (53 * hash) + enableComponents_.hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -610,17 +542,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.LoggingComponentConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -721,7 +646,7 @@ public Builder mergeFrom(com.google.container.v1beta1.LoggingComponentConfig oth
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -736,18 +661,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.LoggingComponentConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                int tmpRaw = input.readEnum();
+                ensureEnableComponentsIsMutable();
+                enableComponents_.add(tmpRaw);
+                break;
+              } // case 8
+            case 10:
+              {
+                int length = input.readRawVarint32();
+                int oldLimit = input.pushLimit(length);
+                while (input.getBytesUntilLimit() > 0) {
+                  int tmpRaw = input.readEnum();
+                  ensureEnableComponentsIsMutable();
+                  enableComponents_.add(tmpRaw);
+                }
+                input.popLimit(oldLimit);
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.LoggingComponentConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1035,7 +992,18 @@ public LoggingComponentConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new LoggingComponentConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingConfig.java
index f216a5b7..e250f853 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingConfig.java
@@ -50,62 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private LoggingConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.LoggingComponentConfig.Builder subBuilder = null;
-              if (componentConfig_ != null) {
-                subBuilder = componentConfig_.toBuilder();
-              }
-              componentConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.LoggingComponentConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(componentConfig_);
-                componentConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_LoggingConfig_descriptor;
@@ -187,7 +131,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (componentConfig_ != null) {
       output.writeMessage(1, getComponentConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -199,7 +143,7 @@ public int getSerializedSize() {
     if (componentConfig_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getComponentConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -219,7 +163,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasComponentConfig()) {
       if (!getComponentConfig().equals(other.getComponentConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -234,7 +178,7 @@ public int hashCode() {
       hash = (37 * hash) + COMPONENT_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getComponentConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -363,17 +307,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.LoggingConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -469,7 +406,7 @@ public Builder mergeFrom(com.google.container.v1beta1.LoggingConfig other) {
       if (other.hasComponentConfig()) {
         mergeComponentConfig(other.getComponentConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -484,17 +421,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.LoggingConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getComponentConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.LoggingConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -717,7 +674,18 @@ public LoggingConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new LoggingConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingVariantConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingVariantConfig.java
new file mode 100644
index 00000000..35eb17dc
--- /dev/null
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingVariantConfig.java
@@ -0,0 +1,753 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/container/v1beta1/cluster_service.proto
+
+package com.google.container.v1beta1;
+
+/**
+ *
+ *
+ * 
+ * LoggingVariantConfig specifies the behaviour of the logging component.
+ * 

+ *
+ * Protobuf type {@code google.container.v1beta1.LoggingVariantConfig}
+ */
+public final class LoggingVariantConfig extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.container.v1beta1.LoggingVariantConfig)
+    LoggingVariantConfigOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use LoggingVariantConfig.newBuilder() to construct.
+  private LoggingVariantConfig(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private LoggingVariantConfig() {
+    variant_ = 0;
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new LoggingVariantConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.container.v1beta1.ClusterServiceProto
+        .internal_static_google_container_v1beta1_LoggingVariantConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.container.v1beta1.ClusterServiceProto
+        .internal_static_google_container_v1beta1_LoggingVariantConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.container.v1beta1.LoggingVariantConfig.class,
+            com.google.container.v1beta1.LoggingVariantConfig.Builder.class);
+  }
+
+  /**
+   *
+   *
+   * 
+   * Logging component variants.
+   * 

+   *
+   * Protobuf enum {@code google.container.v1beta1.LoggingVariantConfig.Variant}
+   */
+  public enum Variant implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * 
+     * Default value. This shouldn't be used.
+     * 

+     *
+     * VARIANT_UNSPECIFIED = 0;
+     */
+    VARIANT_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * 
+     * default logging variant.
+     * 

+     *
+     * DEFAULT = 1;
+     */
+    DEFAULT(1),
+    /**
+     *
+     *
+     * 
+     * maximum logging throughput variant.
+     * 

+     *
+     * MAX_THROUGHPUT = 2;
+     */
+    MAX_THROUGHPUT(2),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * 
+     * Default value. This shouldn't be used.
+     * 

+     *
+     * VARIANT_UNSPECIFIED = 0;
+     */
+    public static final int VARIANT_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * 
+     * default logging variant.
+     * 

+     *
+     * DEFAULT = 1;
+     */
+    public static final int DEFAULT_VALUE = 1;
+    /**
+     *
+     *
+     * 
+     * maximum logging throughput variant.
+     * 

+     *
+     * MAX_THROUGHPUT = 2;
+     */
+    public static final int MAX_THROUGHPUT_VALUE = 2;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static Variant valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static Variant forNumber(int value) {
+      switch (value) {
+        case 0:
+          return VARIANT_UNSPECIFIED;
+        case 1:
+          return DEFAULT;
+        case 2:
+          return MAX_THROUGHPUT;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap internalValueMap =
+        new com.google.protobuf.Internal.EnumLiteMap() {
+          public Variant findValueByNumber(int number) {
+            return Variant.forNumber(number);
+          }
+        };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.container.v1beta1.LoggingVariantConfig.getDescriptor()
+          .getEnumTypes()
+          .get(0);
+    }
+
+    private static final Variant[] VALUES = values();
+
+    public static Variant valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private Variant(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.container.v1beta1.LoggingVariantConfig.Variant)
+  }
+
+  public static final int VARIANT_FIELD_NUMBER = 1;
+  private int variant_;
+  /**
+   *
+   *
+   * 
+   * Logging variant deployed on nodes.
+   * 

+   *
+   * .google.container.v1beta1.LoggingVariantConfig.Variant variant = 1;
+   *
+   * @return The enum numeric value on the wire for variant.
+   */
+  @java.lang.Override
+  public int getVariantValue() {
+    return variant_;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging variant deployed on nodes.
+   * 

+   *
+   * .google.container.v1beta1.LoggingVariantConfig.Variant variant = 1;
+   *
+   * @return The variant.
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.LoggingVariantConfig.Variant getVariant() {
+    @SuppressWarnings("deprecation")
+    com.google.container.v1beta1.LoggingVariantConfig.Variant result =
+        com.google.container.v1beta1.LoggingVariantConfig.Variant.valueOf(variant_);
+    return result == null
+        ? com.google.container.v1beta1.LoggingVariantConfig.Variant.UNRECOGNIZED
+        : result;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (variant_
+        != com.google.container.v1beta1.LoggingVariantConfig.Variant.VARIANT_UNSPECIFIED
+            .getNumber()) {
+      output.writeEnum(1, variant_);
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (variant_
+        != com.google.container.v1beta1.LoggingVariantConfig.Variant.VARIANT_UNSPECIFIED
+            .getNumber()) {
+      size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, variant_);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.container.v1beta1.LoggingVariantConfig)) {
+      return super.equals(obj);
+    }
+    com.google.container.v1beta1.LoggingVariantConfig other =
+        (com.google.container.v1beta1.LoggingVariantConfig) obj;
+
+    if (variant_ != other.variant_) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + VARIANT_FIELD_NUMBER;
+    hash = (53 * hash) + variant_;
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.container.v1beta1.LoggingVariantConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * LoggingVariantConfig specifies the behaviour of the logging component.
+   * 

+   *
+   * Protobuf type {@code google.container.v1beta1.LoggingVariantConfig}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.container.v1beta1.LoggingVariantConfig)
+      com.google.container.v1beta1.LoggingVariantConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.container.v1beta1.ClusterServiceProto
+          .internal_static_google_container_v1beta1_LoggingVariantConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.container.v1beta1.ClusterServiceProto
+          .internal_static_google_container_v1beta1_LoggingVariantConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.container.v1beta1.LoggingVariantConfig.class,
+              com.google.container.v1beta1.LoggingVariantConfig.Builder.class);
+    }
+
+    // Construct using com.google.container.v1beta1.LoggingVariantConfig.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      variant_ = 0;
+
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.container.v1beta1.ClusterServiceProto
+          .internal_static_google_container_v1beta1_LoggingVariantConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.container.v1beta1.LoggingVariantConfig getDefaultInstanceForType() {
+      return com.google.container.v1beta1.LoggingVariantConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.container.v1beta1.LoggingVariantConfig build() {
+      com.google.container.v1beta1.LoggingVariantConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.container.v1beta1.LoggingVariantConfig buildPartial() {
+      com.google.container.v1beta1.LoggingVariantConfig result =
+          new com.google.container.v1beta1.LoggingVariantConfig(this);
+      result.variant_ = variant_;
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.container.v1beta1.LoggingVariantConfig) {
+        return mergeFrom((com.google.container.v1beta1.LoggingVariantConfig) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.container.v1beta1.LoggingVariantConfig other) {
+      if (other == com.google.container.v1beta1.LoggingVariantConfig.getDefaultInstance())
+        return this;
+      if (other.variant_ != 0) {
+        setVariantValue(other.getVariantValue());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                variant_ = input.readEnum();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int variant_ = 0;
+    /**
+     *
+     *
+     * 
+     * Logging variant deployed on nodes.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig.Variant variant = 1;
+     *
+     * @return The enum numeric value on the wire for variant.
+     */
+    @java.lang.Override
+    public int getVariantValue() {
+      return variant_;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant deployed on nodes.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig.Variant variant = 1;
+     *
+     * @param value The enum numeric value on the wire for variant to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVariantValue(int value) {
+
+      variant_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant deployed on nodes.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig.Variant variant = 1;
+     *
+     * @return The variant.
+     */
+    @java.lang.Override
+    public com.google.container.v1beta1.LoggingVariantConfig.Variant getVariant() {
+      @SuppressWarnings("deprecation")
+      com.google.container.v1beta1.LoggingVariantConfig.Variant result =
+          com.google.container.v1beta1.LoggingVariantConfig.Variant.valueOf(variant_);
+      return result == null
+          ? com.google.container.v1beta1.LoggingVariantConfig.Variant.UNRECOGNIZED
+          : result;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant deployed on nodes.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig.Variant variant = 1;
+     *
+     * @param value The variant to set.
+     * @return This builder for chaining.
+     */
+    public Builder setVariant(com.google.container.v1beta1.LoggingVariantConfig.Variant value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+
+      variant_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant deployed on nodes.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig.Variant variant = 1;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearVariant() {
+
+      variant_ = 0;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.container.v1beta1.LoggingVariantConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.container.v1beta1.LoggingVariantConfig)
+  private static final com.google.container.v1beta1.LoggingVariantConfig DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.container.v1beta1.LoggingVariantConfig();
+  }
+
+  public static com.google.container.v1beta1.LoggingVariantConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public LoggingVariantConfig parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.container.v1beta1.LoggingVariantConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingVariantConfigOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingVariantConfigOrBuilder.java
new file mode 100644
index 00000000..22ca9f16
--- /dev/null
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/LoggingVariantConfigOrBuilder.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/container/v1beta1/cluster_service.proto
+
+package com.google.container.v1beta1;
+
+public interface LoggingVariantConfigOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.container.v1beta1.LoggingVariantConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Logging variant deployed on nodes.
+   * 

+   *
+   * .google.container.v1beta1.LoggingVariantConfig.Variant variant = 1;
+   *
+   * @return The enum numeric value on the wire for variant.
+   */
+  int getVariantValue();
+  /**
+   *
+   *
+   * 
+   * Logging variant deployed on nodes.
+   * 

+   *
+   * .google.container.v1beta1.LoggingVariantConfig.Variant variant = 1;
+   *
+   * @return The variant.
+   */
+  com.google.container.v1beta1.LoggingVariantConfig.Variant getVariant();
+}
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenanceExclusionOptions.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenanceExclusionOptions.java
index c08cb8eb..35f73224 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenanceExclusionOptions.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenanceExclusionOptions.java
@@ -52,52 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MaintenanceExclusionOptions(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              scope_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_MaintenanceExclusionOptions_descriptor;
@@ -340,7 +294,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         != com.google.container.v1beta1.MaintenanceExclusionOptions.Scope.NO_UPGRADES.getNumber()) {
       output.writeEnum(1, scope_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -353,7 +307,7 @@ public int getSerializedSize() {
         != com.google.container.v1beta1.MaintenanceExclusionOptions.Scope.NO_UPGRADES.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, scope_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -370,7 +324,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.MaintenanceExclusionOptions) obj;
 
     if (scope_ != other.scope_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -383,7 +337,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + SCOPE_FIELD_NUMBER;
     hash = (53 * hash) + scope_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -513,17 +467,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.MaintenanceExclusionOptions.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -612,7 +559,7 @@ public Builder mergeFrom(com.google.container.v1beta1.MaintenanceExclusionOption
       if (other.scope_ != 0) {
         setScopeValue(other.getScopeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -627,18 +574,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.MaintenanceExclusionOptions parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                scope_ = input.readEnum();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.MaintenanceExclusionOptions) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -772,7 +738,18 @@ public MaintenanceExclusionOptions parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MaintenanceExclusionOptions(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenancePolicy.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenancePolicy.java
index 6ae45b0c..cb7df458 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenancePolicy.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenancePolicy.java
@@ -52,68 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MaintenancePolicy(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.MaintenanceWindow.Builder subBuilder = null;
-              if (window_ != null) {
-                subBuilder = window_.toBuilder();
-              }
-              window_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MaintenanceWindow.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(window_);
-                window_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              resourceVersion_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_MaintenancePolicy_descriptor;
@@ -254,7 +192,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resourceVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, resourceVersion_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -269,7 +207,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resourceVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, resourceVersion_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -290,7 +228,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getWindow().equals(other.getWindow())) return false;
     }
     if (!getResourceVersion().equals(other.getResourceVersion())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -307,7 +245,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + RESOURCE_VERSION_FIELD_NUMBER;
     hash = (53 * hash) + getResourceVersion().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -436,17 +374,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.MaintenancePolicy.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -549,7 +480,7 @@ public Builder mergeFrom(com.google.container.v1beta1.MaintenancePolicy other) {
         resourceVersion_ = other.resourceVersion_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -564,17 +495,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.MaintenancePolicy parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getWindowFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 26:
+              {
+                resourceVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.MaintenancePolicy) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -922,7 +879,18 @@ public MaintenancePolicy parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MaintenancePolicy(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenanceWindow.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenanceWindow.java
index 049e376c..b8b29686 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenanceWindow.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaintenanceWindow.java
@@ -50,100 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MaintenanceWindow(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 18:
-            {
-              com.google.container.v1beta1.DailyMaintenanceWindow.Builder subBuilder = null;
-              if (policyCase_ == 2) {
-                subBuilder =
-                    ((com.google.container.v1beta1.DailyMaintenanceWindow) policy_).toBuilder();
-              }
-              policy_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.DailyMaintenanceWindow.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((com.google.container.v1beta1.DailyMaintenanceWindow) policy_);
-                policy_ = subBuilder.buildPartial();
-              }
-              policyCase_ = 2;
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1beta1.RecurringTimeWindow.Builder subBuilder = null;
-              if (policyCase_ == 3) {
-                subBuilder =
-                    ((com.google.container.v1beta1.RecurringTimeWindow) policy_).toBuilder();
-              }
-              policy_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.RecurringTimeWindow.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom((com.google.container.v1beta1.RecurringTimeWindow) policy_);
-                policy_ = subBuilder.buildPartial();
-              }
-              policyCase_ = 3;
-              break;
-            }
-          case 34:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                maintenanceExclusions_ =
-                    com.google.protobuf.MapField.newMapField(
-                        MaintenanceExclusionsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000001;
-              }
-              com.google.protobuf.MapEntry<
-                      java.lang.String, com.google.container.v1beta1.TimeWindow>
-                  maintenanceExclusions__ =
-                      input.readMessage(
-                          MaintenanceExclusionsDefaultEntryHolder.defaultEntry.getParserForType(),
-                          extensionRegistry);
-              maintenanceExclusions_
-                  .getMutableMap()
-                  .put(maintenanceExclusions__.getKey(), maintenanceExclusions__.getValue());
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_MaintenanceWindow_descriptor;
@@ -469,7 +375,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         internalGetMaintenanceExclusions(),
         MaintenanceExclusionsDefaultEntryHolder.defaultEntry,
         4);
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -499,7 +405,7 @@ public int getSerializedSize() {
                   .build();
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, maintenanceExclusions__);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -528,7 +434,7 @@ public boolean equals(final java.lang.Object obj) {
       case 0:
       default:
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -555,7 +461,7 @@ public int hashCode() {
       case 0:
       default:
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -704,22 +610,21 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1beta1.MaintenanceWindow.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
     public Builder clear() {
       super.clear();
+      if (dailyMaintenanceWindowBuilder_ != null) {
+        dailyMaintenanceWindowBuilder_.clear();
+      }
+      if (recurringWindowBuilder_ != null) {
+        recurringWindowBuilder_.clear();
+      }
       internalGetMutableMaintenanceExclusions().clear();
       policyCase_ = 0;
       policy_ = null;
@@ -834,7 +739,7 @@ public Builder mergeFrom(com.google.container.v1beta1.MaintenanceWindow other) {
             break;
           }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -849,17 +754,57 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.MaintenanceWindow parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 18:
+              {
+                input.readMessage(
+                    getDailyMaintenanceWindowFieldBuilder().getBuilder(), extensionRegistry);
+                policyCase_ = 2;
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(getRecurringWindowFieldBuilder().getBuilder(), extensionRegistry);
+                policyCase_ = 3;
+                break;
+              } // case 26
+            case 34:
+              {
+                com.google.protobuf.MapEntry<
+                        java.lang.String, com.google.container.v1beta1.TimeWindow>
+                    maintenanceExclusions__ =
+                        input.readMessage(
+                            MaintenanceExclusionsDefaultEntryHolder.defaultEntry.getParserForType(),
+                            extensionRegistry);
+                internalGetMutableMaintenanceExclusions()
+                    .getMutableMap()
+                    .put(maintenanceExclusions__.getKey(), maintenanceExclusions__.getValue());
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.MaintenanceWindow) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1539,7 +1484,18 @@ public MaintenanceWindow parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MaintenanceWindow(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ManagedPrometheusConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ManagedPrometheusConfig.java
index 0a3bb87e..45f067c6 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ManagedPrometheusConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ManagedPrometheusConfig.java
@@ -51,50 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ManagedPrometheusConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ManagedPrometheusConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.ManagedPrometheusConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -317,17 +273,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ManagedPrometheusConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -416,7 +365,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ManagedPrometheusConfig ot
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -431,18 +380,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ManagedPrometheusConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ManagedPrometheusConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -530,7 +498,18 @@ public ManagedPrometheusConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ManagedPrometheusConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Master.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Master.java
index 70864b64..f9a870af 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Master.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Master.java
@@ -50,45 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private Master(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_Master_descriptor;
@@ -118,7 +79,7 @@ public final boolean isInitialized() {
 
   @java.lang.Override
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -127,7 +88,7 @@ public int getSerializedSize() {
     if (size != -1) return size;
 
     size = 0;
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -142,7 +103,7 @@ public boolean equals(final java.lang.Object obj) {
     }
     com.google.container.v1beta1.Master other = (com.google.container.v1beta1.Master) obj;
 
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -153,7 +114,7 @@ public int hashCode() {
     }
     int hash = 41;
     hash = (19 * hash) + getDescriptor().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -281,17 +242,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.Master.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -372,7 +326,7 @@ public Builder mergeFrom(com.google.protobuf.Message other) {
 
     public Builder mergeFrom(com.google.container.v1beta1.Master other) {
       if (other == com.google.container.v1beta1.Master.getDefaultInstance()) return this;
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -387,17 +341,31 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.Master parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.Master) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -433,7 +401,18 @@ public Master parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new Master(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuth.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuth.java
index ca95c576..f0c73492 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuth.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuth.java
@@ -58,97 +58,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MasterAuth(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              username_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              password_ = s;
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1beta1.ClientCertificateConfig.Builder subBuilder = null;
-              if (clientCertificateConfig_ != null) {
-                subBuilder = clientCertificateConfig_.toBuilder();
-              }
-              clientCertificateConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ClientCertificateConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(clientCertificateConfig_);
-                clientCertificateConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 802:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterCaCertificate_ = s;
-              break;
-            }
-          case 810:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clientCertificate_ = s;
-              break;
-            }
-          case 818:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clientKey_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_MasterAuth_descriptor;
@@ -182,7 +91,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string username = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.MasterAuth.username is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=979
+   *     google/container/v1beta1/cluster_service.proto;l=983
    * @return The username.
    */
   @java.lang.Override
@@ -214,7 +123,7 @@ public java.lang.String getUsername() {
    * string username = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.MasterAuth.username is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=979
+   *     google/container/v1beta1/cluster_service.proto;l=983
    * @return The bytes for username.
    */
   @java.lang.Override
@@ -250,7 +159,7 @@ public com.google.protobuf.ByteString getUsernameBytes() {
    * string password = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.MasterAuth.password is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=990
+   *     google/container/v1beta1/cluster_service.proto;l=994
    * @return The password.
    */
   @java.lang.Override
@@ -283,7 +192,7 @@ public java.lang.String getPassword() {
    * string password = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.MasterAuth.password is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=990
+   *     google/container/v1beta1/cluster_service.proto;l=994
    * @return The bytes for password.
    */
   @java.lang.Override
@@ -526,7 +435,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientKey_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 102, clientKey_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -554,7 +463,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(clientKey_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(102, clientKey_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -578,7 +487,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterCaCertificate().equals(other.getClusterCaCertificate())) return false;
     if (!getClientCertificate().equals(other.getClientCertificate())) return false;
     if (!getClientKey().equals(other.getClientKey())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -603,7 +512,7 @@ public int hashCode() {
     hash = (53 * hash) + getClientCertificate().hashCode();
     hash = (37 * hash) + CLIENT_KEY_FIELD_NUMBER;
     hash = (53 * hash) + getClientKey().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -734,17 +643,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.MasterAuth.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -875,7 +777,7 @@ public Builder mergeFrom(com.google.container.v1beta1.MasterAuth other) {
         clientKey_ = other.clientKey_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -890,17 +792,68 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.MasterAuth parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                username_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                password_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(
+                    getClientCertificateConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 802:
+              {
+                clusterCaCertificate_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 802
+            case 810:
+              {
+                clientCertificate_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 810
+            case 818:
+              {
+                clientKey_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 818
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.MasterAuth) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -921,7 +874,7 @@ public Builder mergeFrom(
      * string username = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.MasterAuth.username is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=979
+     *     google/container/v1beta1/cluster_service.proto;l=983
      * @return The username.
      */
     @java.lang.Deprecated
@@ -952,7 +905,7 @@ public java.lang.String getUsername() {
      * string username = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.MasterAuth.username is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=979
+     *     google/container/v1beta1/cluster_service.proto;l=983
      * @return The bytes for username.
      */
     @java.lang.Deprecated
@@ -983,7 +936,7 @@ public com.google.protobuf.ByteString getUsernameBytes() {
      * string username = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.MasterAuth.username is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=979
+     *     google/container/v1beta1/cluster_service.proto;l=983
      * @param value The username to set.
      * @return This builder for chaining.
      */
@@ -1013,7 +966,7 @@ public Builder setUsername(java.lang.String value) {
      * string username = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.MasterAuth.username is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=979
+     *     google/container/v1beta1/cluster_service.proto;l=983
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1039,7 +992,7 @@ public Builder clearUsername() {
      * string username = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.MasterAuth.username is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=979
+     *     google/container/v1beta1/cluster_service.proto;l=983
      * @param value The bytes for username to set.
      * @return This builder for chaining.
      */
@@ -1073,7 +1026,7 @@ public Builder setUsernameBytes(com.google.protobuf.ByteString value) {
      * string password = 2 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.MasterAuth.password is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=990
+     *     google/container/v1beta1/cluster_service.proto;l=994
      * @return The password.
      */
     @java.lang.Deprecated
@@ -1105,7 +1058,7 @@ public java.lang.String getPassword() {
      * string password = 2 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.MasterAuth.password is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=990
+     *     google/container/v1beta1/cluster_service.proto;l=994
      * @return The bytes for password.
      */
     @java.lang.Deprecated
@@ -1137,7 +1090,7 @@ public com.google.protobuf.ByteString getPasswordBytes() {
      * string password = 2 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.MasterAuth.password is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=990
+     *     google/container/v1beta1/cluster_service.proto;l=994
      * @param value The password to set.
      * @return This builder for chaining.
      */
@@ -1168,7 +1121,7 @@ public Builder setPassword(java.lang.String value) {
      * string password = 2 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.MasterAuth.password is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=990
+     *     google/container/v1beta1/cluster_service.proto;l=994
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1195,7 +1148,7 @@ public Builder clearPassword() {
      * string password = 2 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.MasterAuth.password is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=990
+     *     google/container/v1beta1/cluster_service.proto;l=994
      * @param value The bytes for password to set.
      * @return This builder for chaining.
      */
@@ -1750,7 +1703,18 @@ public MasterAuth parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MasterAuth(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuthOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuthOrBuilder.java
index 6d152838..1a46e5c7 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuthOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuthOrBuilder.java
@@ -39,7 +39,7 @@ public interface MasterAuthOrBuilder
    * string username = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.MasterAuth.username is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=979
+   *     google/container/v1beta1/cluster_service.proto;l=983
    * @return The username.
    */
   @java.lang.Deprecated
@@ -60,7 +60,7 @@ public interface MasterAuthOrBuilder
    * string username = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.MasterAuth.username is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=979
+   *     google/container/v1beta1/cluster_service.proto;l=983
    * @return The bytes for username.
    */
   @java.lang.Deprecated
@@ -83,7 +83,7 @@ public interface MasterAuthOrBuilder
    * string password = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.MasterAuth.password is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=990
+   *     google/container/v1beta1/cluster_service.proto;l=994
    * @return The password.
    */
   @java.lang.Deprecated
@@ -105,7 +105,7 @@ public interface MasterAuthOrBuilder
    * string password = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.MasterAuth.password is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=990
+   *     google/container/v1beta1/cluster_service.proto;l=994
    * @return The bytes for password.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuthorizedNetworksConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuthorizedNetworksConfig.java
index f16e8516..1d3fb473 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuthorizedNetworksConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MasterAuthorizedNetworksConfig.java
@@ -56,69 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MasterAuthorizedNetworksConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 18:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                cidrBlocks_ =
-                    new java.util.ArrayList<
-                        com.google.container.v1beta1.MasterAuthorizedNetworksConfig.CidrBlock>();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              cidrBlocks_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.MasterAuthorizedNetworksConfig.CidrBlock
-                          .parser(),
-                      extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        cidrBlocks_ = java.util.Collections.unmodifiableList(cidrBlocks_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_MasterAuthorizedNetworksConfig_descriptor;
@@ -224,59 +161,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private CidrBlock(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                displayName_ = s;
-                break;
-              }
-            case 18:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                cidrBlock_ = s;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_MasterAuthorizedNetworksConfig_CidrBlock_descriptor;
@@ -410,7 +294,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cidrBlock_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 2, cidrBlock_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -425,7 +309,7 @@ public int getSerializedSize() {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cidrBlock_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, cidrBlock_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -443,7 +327,7 @@ public boolean equals(final java.lang.Object obj) {
 
       if (!getDisplayName().equals(other.getDisplayName())) return false;
       if (!getCidrBlock().equals(other.getCidrBlock())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -458,7 +342,7 @@ public int hashCode() {
       hash = (53 * hash) + getDisplayName().hashCode();
       hash = (37 * hash) + CIDR_BLOCK_FIELD_NUMBER;
       hash = (53 * hash) + getCidrBlock().hashCode();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -593,17 +477,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
       // Construct using
       // com.google.container.v1beta1.MasterAuthorizedNetworksConfig.CidrBlock.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -709,7 +586,7 @@ public Builder mergeFrom(
           cidrBlock_ = other.cidrBlock_;
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -724,19 +601,43 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.MasterAuthorizedNetworksConfig.CidrBlock parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  displayName_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 10
+              case 18:
+                {
+                  cidrBlock_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 18
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.MasterAuthorizedNetworksConfig.CidrBlock)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -988,7 +889,19 @@ public CidrBlock parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new CidrBlock(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1135,7 +1048,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < cidrBlocks_.size(); i++) {
       output.writeMessage(2, cidrBlocks_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1150,7 +1063,7 @@ public int getSerializedSize() {
     for (int i = 0; i < cidrBlocks_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, cidrBlocks_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1168,7 +1081,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getEnabled() != other.getEnabled()) return false;
     if (!getCidrBlocksList().equals(other.getCidrBlocksList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1185,7 +1098,7 @@ public int hashCode() {
       hash = (37 * hash) + CIDR_BLOCKS_FIELD_NUMBER;
       hash = (53 * hash) + getCidrBlocksList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1318,19 +1231,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.MasterAuthorizedNetworksConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getCidrBlocksFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -1340,10 +1244,11 @@ public Builder clear() {
 
       if (cidrBlocksBuilder_ == null) {
         cidrBlocks_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        cidrBlocks_ = null;
         cidrBlocksBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       return this;
     }
 
@@ -1462,7 +1367,7 @@ public Builder mergeFrom(com.google.container.v1beta1.MasterAuthorizedNetworksCo
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1477,18 +1382,52 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.MasterAuthorizedNetworksConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                com.google.container.v1beta1.MasterAuthorizedNetworksConfig.CidrBlock m =
+                    input.readMessage(
+                        com.google.container.v1beta1.MasterAuthorizedNetworksConfig.CidrBlock
+                            .parser(),
+                        extensionRegistry);
+                if (cidrBlocksBuilder_ == null) {
+                  ensureCidrBlocksIsMutable();
+                  cidrBlocks_.add(m);
+                } else {
+                  cidrBlocksBuilder_.addMessage(m);
+                }
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.MasterAuthorizedNetworksConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2008,7 +1947,18 @@ public MasterAuthorizedNetworksConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MasterAuthorizedNetworksConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaxPodsConstraint.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaxPodsConstraint.java
index 8d43fcba..8b677c36 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaxPodsConstraint.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MaxPodsConstraint.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MaxPodsConstraint(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              maxPodsPerNode_ = input.readInt64();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_MaxPodsConstraint_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (maxPodsPerNode_ != 0L) {
       output.writeInt64(1, maxPodsPerNode_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (maxPodsPerNode_ != 0L) {
       size += com.google.protobuf.CodedOutputStream.computeInt64Size(1, maxPodsPerNode_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.MaxPodsConstraint) obj;
 
     if (getMaxPodsPerNode() != other.getMaxPodsPerNode()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + MAX_PODS_PER_NODE_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getMaxPodsPerNode());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.MaxPodsConstraint.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -413,7 +362,7 @@ public Builder mergeFrom(com.google.container.v1beta1.MaxPodsConstraint other) {
       if (other.getMaxPodsPerNode() != 0L) {
         setMaxPodsPerNode(other.getMaxPodsPerNode());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -428,17 +377,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.MaxPodsConstraint parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                maxPodsPerNode_ = input.readInt64();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.MaxPodsConstraint) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -526,7 +495,18 @@ public MaxPodsConstraint parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MaxPodsConstraint(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MeshCertificates.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MeshCertificates.java
index 211bfa44..fa31bea1 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MeshCertificates.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MeshCertificates.java
@@ -50,60 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MeshCertificates(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.protobuf.BoolValue.Builder subBuilder = null;
-              if (enableCertificates_ != null) {
-                subBuilder = enableCertificates_.toBuilder();
-              }
-              enableCertificates_ =
-                  input.readMessage(com.google.protobuf.BoolValue.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(enableCertificates_);
-                enableCertificates_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_MeshCertificates_descriptor;
@@ -202,7 +148,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enableCertificates_ != null) {
       output.writeMessage(1, getEnableCertificates());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -214,7 +160,7 @@ public int getSerializedSize() {
     if (enableCertificates_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getEnableCertificates());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -234,7 +180,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasEnableCertificates()) {
       if (!getEnableCertificates().equals(other.getEnableCertificates())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -249,7 +195,7 @@ public int hashCode() {
       hash = (37 * hash) + ENABLE_CERTIFICATES_FIELD_NUMBER;
       hash = (53 * hash) + getEnableCertificates().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -378,17 +324,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.MeshCertificates.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -484,7 +423,7 @@ public Builder mergeFrom(com.google.container.v1beta1.MeshCertificates other) {
       if (other.hasEnableCertificates()) {
         mergeEnableCertificates(other.getEnableCertificates());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -499,17 +438,38 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.MeshCertificates parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getEnableCertificatesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.MeshCertificates) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -784,7 +744,18 @@ public MeshCertificates parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MeshCertificates(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MonitoringComponentConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MonitoringComponentConfig.java
index 01204246..f3895b28 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MonitoringComponentConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MonitoringComponentConfig.java
@@ -52,74 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MonitoringComponentConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                enableComponents_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              enableComponents_.add(rawValue);
-              break;
-            }
-          case 10:
-            {
-              int length = input.readRawVarint32();
-              int oldLimit = input.pushLimit(length);
-              while (input.getBytesUntilLimit() > 0) {
-                int rawValue = input.readEnum();
-                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                  enableComponents_ = new java.util.ArrayList();
-                  mutable_bitField0_ |= 0x00000001;
-                }
-                enableComponents_.add(rawValue);
-              }
-              input.popLimit(oldLimit);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        enableComponents_ = java.util.Collections.unmodifiableList(enableComponents_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_MonitoringComponentConfig_descriptor;
@@ -500,7 +432,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < enableComponents_.size(); i++) {
       output.writeEnumNoTag(enableComponents_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -522,7 +454,7 @@ public int getSerializedSize() {
       }
       enableComponentsMemoizedSerializedSize = dataSize;
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -539,7 +471,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.MonitoringComponentConfig) obj;
 
     if (!enableComponents_.equals(other.enableComponents_)) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -554,7 +486,7 @@ public int hashCode() {
       hash = (37 * hash) + ENABLE_COMPONENTS_FIELD_NUMBER;
       hash = (53 * hash) + enableComponents_.hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -684,17 +616,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.MonitoringComponentConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -795,7 +720,7 @@ public Builder mergeFrom(com.google.container.v1beta1.MonitoringComponentConfig
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -810,18 +735,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.MonitoringComponentConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                int tmpRaw = input.readEnum();
+                ensureEnableComponentsIsMutable();
+                enableComponents_.add(tmpRaw);
+                break;
+              } // case 8
+            case 10:
+              {
+                int length = input.readRawVarint32();
+                int oldLimit = input.pushLimit(length);
+                while (input.getBytesUntilLimit() > 0) {
+                  int tmpRaw = input.readEnum();
+                  ensureEnableComponentsIsMutable();
+                  enableComponents_.add(tmpRaw);
+                }
+                input.popLimit(oldLimit);
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.MonitoringComponentConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1122,7 +1079,18 @@ public MonitoringComponentConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MonitoringComponentConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MonitoringConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MonitoringConfig.java
index a927e6d7..1d9820df 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MonitoringConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/MonitoringConfig.java
@@ -50,79 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private MonitoringConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.MonitoringComponentConfig.Builder subBuilder = null;
-              if (componentConfig_ != null) {
-                subBuilder = componentConfig_.toBuilder();
-              }
-              componentConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MonitoringComponentConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(componentConfig_);
-                componentConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 18:
-            {
-              com.google.container.v1beta1.ManagedPrometheusConfig.Builder subBuilder = null;
-              if (managedPrometheusConfig_ != null) {
-                subBuilder = managedPrometheusConfig_.toBuilder();
-              }
-              managedPrometheusConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ManagedPrometheusConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(managedPrometheusConfig_);
-                managedPrometheusConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_MonitoringConfig_descriptor;
@@ -259,7 +186,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (managedPrometheusConfig_ != null) {
       output.writeMessage(2, getManagedPrometheusConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -275,7 +202,7 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(2, getManagedPrometheusConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -299,7 +226,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasManagedPrometheusConfig()) {
       if (!getManagedPrometheusConfig().equals(other.getManagedPrometheusConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -318,7 +245,7 @@ public int hashCode() {
       hash = (37 * hash) + MANAGED_PROMETHEUS_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getManagedPrometheusConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -447,17 +374,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.MonitoringConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -567,7 +487,7 @@ public Builder mergeFrom(com.google.container.v1beta1.MonitoringConfig other) {
       if (other.hasManagedPrometheusConfig()) {
         mergeManagedPrometheusConfig(other.getManagedPrometheusConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -582,17 +502,44 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.MonitoringConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getComponentConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(
+                    getManagedPrometheusConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.MonitoringConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1018,7 +965,18 @@ public MonitoringConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new MonitoringConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkConfig.java
index abf4fe1d..b8896748 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkConfig.java
@@ -55,132 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NetworkConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              network_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              subnetwork_ = s;
-              break;
-            }
-          case 40:
-            {
-              enableIntraNodeVisibility_ = input.readBool();
-              break;
-            }
-          case 58:
-            {
-              com.google.container.v1beta1.DefaultSnatStatus.Builder subBuilder = null;
-              if (defaultSnatStatus_ != null) {
-                subBuilder = defaultSnatStatus_.toBuilder();
-              }
-              defaultSnatStatus_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.DefaultSnatStatus.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(defaultSnatStatus_);
-                defaultSnatStatus_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 80:
-            {
-              enableL4IlbSubsetting_ = input.readBool();
-              break;
-            }
-          case 88:
-            {
-              int rawValue = input.readEnum();
-
-              datapathProvider_ = rawValue;
-              break;
-            }
-          case 96:
-            {
-              int rawValue = input.readEnum();
-
-              privateIpv6GoogleAccess_ = rawValue;
-              break;
-            }
-          case 106:
-            {
-              com.google.container.v1beta1.DNSConfig.Builder subBuilder = null;
-              if (dnsConfig_ != null) {
-                subBuilder = dnsConfig_.toBuilder();
-              }
-              dnsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.DNSConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(dnsConfig_);
-                dnsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 122:
-            {
-              com.google.container.v1beta1.ServiceExternalIPsConfig.Builder subBuilder = null;
-              if (serviceExternalIpsConfig_ != null) {
-                subBuilder = serviceExternalIpsConfig_.toBuilder();
-              }
-              serviceExternalIpsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ServiceExternalIPsConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(serviceExternalIpsConfig_);
-                serviceExternalIpsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NetworkConfig_descriptor;
@@ -629,7 +503,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (serviceExternalIpsConfig_ != null) {
       output.writeMessage(15, getServiceExternalIpsConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -672,7 +546,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               15, getServiceExternalIpsConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -706,7 +580,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasServiceExternalIpsConfig()) {
       if (!getServiceExternalIpsConfig().equals(other.getServiceExternalIpsConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -741,7 +615,7 @@ public int hashCode() {
       hash = (37 * hash) + SERVICE_EXTERNAL_IPS_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getServiceExternalIpsConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -870,17 +744,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NetworkConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1042,7 +909,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NetworkConfig other) {
       if (other.hasServiceExternalIpsConfig()) {
         mergeServiceExternalIpsConfig(other.getServiceExternalIpsConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1057,17 +924,87 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NetworkConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                network_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                subnetwork_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 40:
+              {
+                enableIntraNodeVisibility_ = input.readBool();
+
+                break;
+              } // case 40
+            case 58:
+              {
+                input.readMessage(
+                    getDefaultSnatStatusFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 58
+            case 80:
+              {
+                enableL4IlbSubsetting_ = input.readBool();
+
+                break;
+              } // case 80
+            case 88:
+              {
+                datapathProvider_ = input.readEnum();
+
+                break;
+              } // case 88
+            case 96:
+              {
+                privateIpv6GoogleAccess_ = input.readEnum();
+
+                break;
+              } // case 96
+            case 106:
+              {
+                input.readMessage(getDnsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 106
+            case 122:
+              {
+                input.readMessage(
+                    getServiceExternalIpsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 122
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NetworkConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2264,7 +2201,18 @@ public NetworkConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NetworkConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkPolicy.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkPolicy.java
index 5a224b72..f07989ed 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkPolicy.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkPolicy.java
@@ -53,57 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NetworkPolicy(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              provider_ = rawValue;
-              break;
-            }
-          case 16:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NetworkPolicy_descriptor;
@@ -331,7 +280,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(2, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -347,7 +296,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(2, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -365,7 +314,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (provider_ != other.provider_) return false;
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -380,7 +329,7 @@ public int hashCode() {
     hash = (53 * hash) + provider_;
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -510,17 +459,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NetworkPolicy.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -614,7 +556,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NetworkPolicy other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -629,17 +571,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NetworkPolicy parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                provider_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NetworkPolicy) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -820,7 +788,18 @@ public NetworkPolicy parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NetworkPolicy(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkPolicyConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkPolicyConfig.java
index db48fc65..8dce320c 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkPolicyConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkPolicyConfig.java
@@ -52,50 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NetworkPolicyConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              disabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NetworkPolicyConfig_descriptor;
@@ -146,7 +102,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (disabled_ != false) {
       output.writeBool(1, disabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -158,7 +114,7 @@ public int getSerializedSize() {
     if (disabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, disabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -175,7 +131,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.NetworkPolicyConfig) obj;
 
     if (getDisabled() != other.getDisabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -188,7 +144,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + DISABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getDisabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -319,17 +275,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NetworkPolicyConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -418,7 +367,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NetworkPolicyConfig other)
       if (other.getDisabled() != false) {
         setDisabled(other.getDisabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -433,17 +382,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NetworkPolicyConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                disabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NetworkPolicyConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -531,7 +500,18 @@ public NetworkPolicyConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NetworkPolicyConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkTags.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkTags.java
index 2fcbc966..f309ec4e 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkTags.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NetworkTags.java
@@ -54,59 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NetworkTags(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                tags_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              tags_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        tags_ = tags_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NetworkTags_descriptor;
@@ -200,7 +147,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < tags_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 1, tags_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -217,7 +164,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getTagsList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -233,7 +180,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1beta1.NetworkTags other = (com.google.container.v1beta1.NetworkTags) obj;
 
     if (!getTagsList().equals(other.getTagsList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -248,7 +195,7 @@ public int hashCode() {
       hash = (37 * hash) + TAGS_FIELD_NUMBER;
       hash = (53 * hash) + getTagsList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -379,17 +326,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NetworkTags.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -489,7 +429,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NetworkTags other) {
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -504,17 +444,38 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NetworkTags parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureTagsIsMutable();
+                tags_.add(s);
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NetworkTags) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -720,7 +681,18 @@ public NetworkTags parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NetworkTags(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfig.java
index 4f123f0b..1c8b6c63 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfig.java
@@ -66,378 +66,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              machineType_ = s;
-              break;
-            }
-          case 16:
-            {
-              diskSizeGb_ = input.readInt32();
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                oauthScopes_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              oauthScopes_.add(s);
-              break;
-            }
-          case 34:
-            {
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                metadata_ =
-                    com.google.protobuf.MapField.newMapField(
-                        MetadataDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000002;
-              }
-              com.google.protobuf.MapEntry metadata__ =
-                  input.readMessage(
-                      MetadataDefaultEntryHolder.defaultEntry.getParserForType(),
-                      extensionRegistry);
-              metadata_.getMutableMap().put(metadata__.getKey(), metadata__.getValue());
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              imageType_ = s;
-              break;
-            }
-          case 50:
-            {
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                labels_ =
-                    com.google.protobuf.MapField.newMapField(LabelsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000004;
-              }
-              com.google.protobuf.MapEntry labels__ =
-                  input.readMessage(
-                      LabelsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
-              labels_.getMutableMap().put(labels__.getKey(), labels__.getValue());
-              break;
-            }
-          case 56:
-            {
-              localSsdCount_ = input.readInt32();
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000008) != 0)) {
-                tags_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000008;
-              }
-              tags_.add(s);
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              serviceAccount_ = s;
-              break;
-            }
-          case 80:
-            {
-              preemptible_ = input.readBool();
-              break;
-            }
-          case 90:
-            {
-              if (!((mutable_bitField0_ & 0x00000010) != 0)) {
-                accelerators_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000010;
-              }
-              accelerators_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.AcceleratorConfig.parser(), extensionRegistry));
-              break;
-            }
-          case 98:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              diskType_ = s;
-              break;
-            }
-          case 106:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              minCpuPlatform_ = s;
-              break;
-            }
-          case 114:
-            {
-              com.google.container.v1beta1.WorkloadMetadataConfig.Builder subBuilder = null;
-              if (workloadMetadataConfig_ != null) {
-                subBuilder = workloadMetadataConfig_.toBuilder();
-              }
-              workloadMetadataConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.WorkloadMetadataConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(workloadMetadataConfig_);
-                workloadMetadataConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 122:
-            {
-              if (!((mutable_bitField0_ & 0x00000020) != 0)) {
-                taints_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000020;
-              }
-              taints_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeTaint.parser(), extensionRegistry));
-              break;
-            }
-          case 138:
-            {
-              com.google.container.v1beta1.SandboxConfig.Builder subBuilder = null;
-              if (sandboxConfig_ != null) {
-                subBuilder = sandboxConfig_.toBuilder();
-              }
-              sandboxConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.SandboxConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(sandboxConfig_);
-                sandboxConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 146:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodeGroup_ = s;
-              break;
-            }
-          case 154:
-            {
-              com.google.container.v1beta1.ReservationAffinity.Builder subBuilder = null;
-              if (reservationAffinity_ != null) {
-                subBuilder = reservationAffinity_.toBuilder();
-              }
-              reservationAffinity_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ReservationAffinity.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(reservationAffinity_);
-                reservationAffinity_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 162:
-            {
-              com.google.container.v1beta1.ShieldedInstanceConfig.Builder subBuilder = null;
-              if (shieldedInstanceConfig_ != null) {
-                subBuilder = shieldedInstanceConfig_.toBuilder();
-              }
-              shieldedInstanceConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ShieldedInstanceConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(shieldedInstanceConfig_);
-                shieldedInstanceConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 170:
-            {
-              com.google.container.v1beta1.LinuxNodeConfig.Builder subBuilder = null;
-              if (linuxNodeConfig_ != null) {
-                subBuilder = linuxNodeConfig_.toBuilder();
-              }
-              linuxNodeConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.LinuxNodeConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(linuxNodeConfig_);
-                linuxNodeConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 178:
-            {
-              com.google.container.v1beta1.NodeKubeletConfig.Builder subBuilder = null;
-              if (kubeletConfig_ != null) {
-                subBuilder = kubeletConfig_.toBuilder();
-              }
-              kubeletConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeKubeletConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(kubeletConfig_);
-                kubeletConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 186:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              bootDiskKmsKey_ = s;
-              break;
-            }
-          case 194:
-            {
-              com.google.container.v1beta1.EphemeralStorageConfig.Builder subBuilder = null;
-              if (ephemeralStorageConfig_ != null) {
-                subBuilder = ephemeralStorageConfig_.toBuilder();
-              }
-              ephemeralStorageConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.EphemeralStorageConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(ephemeralStorageConfig_);
-                ephemeralStorageConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 202:
-            {
-              com.google.container.v1beta1.GcfsConfig.Builder subBuilder = null;
-              if (gcfsConfig_ != null) {
-                subBuilder = gcfsConfig_.toBuilder();
-              }
-              gcfsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.GcfsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gcfsConfig_);
-                gcfsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 210:
-            {
-              com.google.container.v1beta1.AdvancedMachineFeatures.Builder subBuilder = null;
-              if (advancedMachineFeatures_ != null) {
-                subBuilder = advancedMachineFeatures_.toBuilder();
-              }
-              advancedMachineFeatures_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.AdvancedMachineFeatures.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(advancedMachineFeatures_);
-                advancedMachineFeatures_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 234:
-            {
-              com.google.container.v1beta1.VirtualNIC.Builder subBuilder = null;
-              if (gvnic_ != null) {
-                subBuilder = gvnic_.toBuilder();
-              }
-              gvnic_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.VirtualNIC.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gvnic_);
-                gvnic_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 256:
-            {
-              spot_ = input.readBool();
-              break;
-            }
-          case 282:
-            {
-              com.google.container.v1beta1.ConfidentialNodes.Builder subBuilder = null;
-              if (confidentialNodes_ != null) {
-                subBuilder = confidentialNodes_.toBuilder();
-              }
-              confidentialNodes_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ConfidentialNodes.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(confidentialNodes_);
-                confidentialNodes_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        oauthScopes_ = oauthScopes_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000008) != 0)) {
-        tags_ = tags_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000010) != 0)) {
-        accelerators_ = java.util.Collections.unmodifiableList(accelerators_);
-      }
-      if (((mutable_bitField0_ & 0x00000020) != 0)) {
-        taints_ = java.util.Collections.unmodifiableList(taints_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodeConfig_descriptor;
@@ -1504,7 +1132,7 @@ public com.google.protobuf.ByteString getDiskTypeBytes() {
    * `minCpuPlatform: "Intel Haswell"` or
    * `minCpuPlatform: "Intel Sandy Bridge"`. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * 

    *
    * string min_cpu_platform = 13;
@@ -1533,7 +1161,7 @@ public java.lang.String getMinCpuPlatform() {
    * `minCpuPlatform: "Intel Haswell"` or
    * `minCpuPlatform: "Intel Sandy Bridge"`. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * 

    *
    * string min_cpu_platform = 13;
@@ -2150,6 +1778,54 @@ public com.google.container.v1beta1.ConfidentialNodesOrBuilder getConfidentialNo
     return getConfidentialNodes();
   }
 
+  public static final int LOGGING_CONFIG_FIELD_NUMBER = 38;
+  private com.google.container.v1beta1.NodePoolLoggingConfig loggingConfig_;
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasLoggingConfig() {
+    return loggingConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+   *
+   * @return The loggingConfig.
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.NodePoolLoggingConfig getLoggingConfig() {
+    return loggingConfig_ == null
+        ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+        : loggingConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+    return getLoggingConfig();
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -2246,7 +1922,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (confidentialNodes_ != null) {
       output.writeMessage(35, getConfidentialNodes());
     }
-    unknownFields.writeTo(output);
+    if (loggingConfig_ != null) {
+      output.writeMessage(38, getLoggingConfig());
+    }
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -2369,7 +2048,10 @@ public int getSerializedSize() {
     if (confidentialNodes_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(35, getConfidentialNodes());
     }
-    size += unknownFields.getSerializedSize();
+    if (loggingConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(38, getLoggingConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -2445,7 +2127,11 @@ public boolean equals(final java.lang.Object obj) {
     if (hasConfidentialNodes()) {
       if (!getConfidentialNodes().equals(other.getConfidentialNodes())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (hasLoggingConfig() != other.hasLoggingConfig()) return false;
+    if (hasLoggingConfig()) {
+      if (!getLoggingConfig().equals(other.getLoggingConfig())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -2546,7 +2232,11 @@ public int hashCode() {
       hash = (37 * hash) + CONFIDENTIAL_NODES_FIELD_NUMBER;
       hash = (53 * hash) + getConfidentialNodes().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    if (hasLoggingConfig()) {
+      hash = (37 * hash) + LOGGING_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getLoggingConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -2703,20 +2393,10 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1beta1.NodeConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getAcceleratorsFieldBuilder();
-        getTaintsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -2742,10 +2422,11 @@ public Builder clear() {
 
       if (acceleratorsBuilder_ == null) {
         accelerators_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000010);
       } else {
+        accelerators_ = null;
         acceleratorsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000010);
       if (sandboxConfigBuilder_ == null) {
         sandboxConfig_ = null;
       } else {
@@ -2772,10 +2453,11 @@ public Builder clear() {
       }
       if (taintsBuilder_ == null) {
         taints_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000020);
       } else {
+        taints_ = null;
         taintsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000020);
       bootDiskKmsKey_ = "";
 
       if (shieldedInstanceConfigBuilder_ == null) {
@@ -2828,6 +2510,12 @@ public Builder clear() {
         confidentialNodes_ = null;
         confidentialNodesBuilder_ = null;
       }
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
       return this;
     }
 
@@ -2954,6 +2642,11 @@ public com.google.container.v1beta1.NodeConfig buildPartial() {
       } else {
         result.confidentialNodes_ = confidentialNodesBuilder_.build();
       }
+      if (loggingConfigBuilder_ == null) {
+        result.loggingConfig_ = loggingConfig_;
+      } else {
+        result.loggingConfig_ = loggingConfigBuilder_.build();
+      }
       onBuilt();
       return result;
     }
@@ -3152,7 +2845,10 @@ public Builder mergeFrom(com.google.container.v1beta1.NodeConfig other) {
       if (other.hasConfidentialNodes()) {
         mergeConfidentialNodes(other.getConfidentialNodes());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      if (other.hasLoggingConfig()) {
+        mergeLoggingConfig(other.getLoggingConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -3167,17 +2863,237 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodeConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                machineType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                diskSizeGb_ = input.readInt32();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureOauthScopesIsMutable();
+                oauthScopes_.add(s);
+                break;
+              } // case 26
+            case 34:
+              {
+                com.google.protobuf.MapEntry metadata__ =
+                    input.readMessage(
+                        MetadataDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableMetadata()
+                    .getMutableMap()
+                    .put(metadata__.getKey(), metadata__.getValue());
+                break;
+              } // case 34
+            case 42:
+              {
+                imageType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                com.google.protobuf.MapEntry labels__ =
+                    input.readMessage(
+                        LabelsDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableLabels()
+                    .getMutableMap()
+                    .put(labels__.getKey(), labels__.getValue());
+                break;
+              } // case 50
+            case 56:
+              {
+                localSsdCount_ = input.readInt32();
+
+                break;
+              } // case 56
+            case 66:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureTagsIsMutable();
+                tags_.add(s);
+                break;
+              } // case 66
+            case 74:
+              {
+                serviceAccount_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 80:
+              {
+                preemptible_ = input.readBool();
+
+                break;
+              } // case 80
+            case 90:
+              {
+                com.google.container.v1beta1.AcceleratorConfig m =
+                    input.readMessage(
+                        com.google.container.v1beta1.AcceleratorConfig.parser(), extensionRegistry);
+                if (acceleratorsBuilder_ == null) {
+                  ensureAcceleratorsIsMutable();
+                  accelerators_.add(m);
+                } else {
+                  acceleratorsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 90
+            case 98:
+              {
+                diskType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 98
+            case 106:
+              {
+                minCpuPlatform_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 106
+            case 114:
+              {
+                input.readMessage(
+                    getWorkloadMetadataConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 114
+            case 122:
+              {
+                com.google.container.v1beta1.NodeTaint m =
+                    input.readMessage(
+                        com.google.container.v1beta1.NodeTaint.parser(), extensionRegistry);
+                if (taintsBuilder_ == null) {
+                  ensureTaintsIsMutable();
+                  taints_.add(m);
+                } else {
+                  taintsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 122
+            case 138:
+              {
+                input.readMessage(getSandboxConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 138
+            case 146:
+              {
+                nodeGroup_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 146
+            case 154:
+              {
+                input.readMessage(
+                    getReservationAffinityFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 154
+            case 162:
+              {
+                input.readMessage(
+                    getShieldedInstanceConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 162
+            case 170:
+              {
+                input.readMessage(getLinuxNodeConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 170
+            case 178:
+              {
+                input.readMessage(getKubeletConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 178
+            case 186:
+              {
+                bootDiskKmsKey_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 186
+            case 194:
+              {
+                input.readMessage(
+                    getEphemeralStorageConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 194
+            case 202:
+              {
+                input.readMessage(getGcfsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 202
+            case 210:
+              {
+                input.readMessage(
+                    getAdvancedMachineFeaturesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 210
+            case 234:
+              {
+                input.readMessage(getGvnicFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 234
+            case 256:
+              {
+                spot_ = input.readBool();
+
+                break;
+              } // case 256
+            case 282:
+              {
+                input.readMessage(
+                    getConfidentialNodesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 282
+            case 306:
+              {
+                input.readMessage(getLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 306
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodeConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -5770,7 +5686,7 @@ public Builder setDiskTypeBytes(com.google.protobuf.ByteString value) {
      * `minCpuPlatform: "Intel Haswell"` or
      * `minCpuPlatform: "Intel Sandy Bridge"`. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * 

      *
      * string min_cpu_platform = 13;
@@ -5798,7 +5714,7 @@ public java.lang.String getMinCpuPlatform() {
      * `minCpuPlatform: "Intel Haswell"` or
      * `minCpuPlatform: "Intel Sandy Bridge"`. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * 

      *
      * string min_cpu_platform = 13;
@@ -5826,7 +5742,7 @@ public com.google.protobuf.ByteString getMinCpuPlatformBytes() {
      * `minCpuPlatform: "Intel Haswell"` or
      * `minCpuPlatform: "Intel Sandy Bridge"`. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * 

      *
      * string min_cpu_platform = 13;
@@ -5853,7 +5769,7 @@ public Builder setMinCpuPlatform(java.lang.String value) {
      * `minCpuPlatform: "Intel Haswell"` or
      * `minCpuPlatform: "Intel Sandy Bridge"`. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * 

      *
      * string min_cpu_platform = 13;
@@ -5876,7 +5792,7 @@ public Builder clearMinCpuPlatform() {
      * `minCpuPlatform: "Intel Haswell"` or
      * `minCpuPlatform: "Intel Sandy Bridge"`. For more
      * information, read [how to specify min CPU
-     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+     * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
      * 

      *
      * string min_cpu_platform = 13;
@@ -8184,6 +8100,192 @@ public com.google.container.v1beta1.ConfidentialNodesOrBuilder getConfidentialNo
       return confidentialNodesBuilder_;
     }
 
+    private com.google.container.v1beta1.NodePoolLoggingConfig loggingConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1beta1.NodePoolLoggingConfig,
+            com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>
+        loggingConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+     *
+     * @return Whether the loggingConfig field is set.
+     */
+    public boolean hasLoggingConfig() {
+      return loggingConfigBuilder_ != null || loggingConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+     *
+     * @return The loggingConfig.
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfig getLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        return loggingConfig_ == null
+            ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      } else {
+        return loggingConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public Builder setLoggingConfig(com.google.container.v1beta1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        loggingConfig_ = value;
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public Builder setLoggingConfig(
+        com.google.container.v1beta1.NodePoolLoggingConfig.Builder builderForValue) {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public Builder mergeLoggingConfig(com.google.container.v1beta1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (loggingConfig_ != null) {
+          loggingConfig_ =
+              com.google.container.v1beta1.NodePoolLoggingConfig.newBuilder(loggingConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          loggingConfig_ = value;
+        }
+        onChanged();
+      } else {
+        loggingConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public Builder clearLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+        onChanged();
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfig.Builder getLoggingConfigBuilder() {
+
+      onChanged();
+      return getLoggingConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+      if (loggingConfigBuilder_ != null) {
+        return loggingConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return loggingConfig_ == null
+            ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1beta1.NodePoolLoggingConfig,
+            com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>
+        getLoggingConfigFieldBuilder() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.container.v1beta1.NodePoolLoggingConfig,
+                com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+                com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>(
+                getLoggingConfig(), getParentForChildren(), isClean());
+        loggingConfig_ = null;
+      }
+      return loggingConfigBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
@@ -8216,7 +8318,18 @@ public NodeConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigDefaults.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigDefaults.java
index 8edbf303..64f27b13 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigDefaults.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigDefaults.java
@@ -50,61 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeConfigDefaults(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.GcfsConfig.Builder subBuilder = null;
-              if (gcfsConfig_ != null) {
-                subBuilder = gcfsConfig_.toBuilder();
-              }
-              gcfsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.GcfsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gcfsConfig_);
-                gcfsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodeConfigDefaults_descriptor;
@@ -168,6 +113,54 @@ public com.google.container.v1beta1.GcfsConfigOrBuilder getGcfsConfigOrBuilder()
     return getGcfsConfig();
   }
 
+  public static final int LOGGING_CONFIG_FIELD_NUMBER = 3;
+  private com.google.container.v1beta1.NodePoolLoggingConfig loggingConfig_;
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasLoggingConfig() {
+    return loggingConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+   *
+   * @return The loggingConfig.
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.NodePoolLoggingConfig getLoggingConfig() {
+    return loggingConfig_ == null
+        ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+        : loggingConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+    return getLoggingConfig();
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -185,7 +178,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (gcfsConfig_ != null) {
       output.writeMessage(1, getGcfsConfig());
     }
-    unknownFields.writeTo(output);
+    if (loggingConfig_ != null) {
+      output.writeMessage(3, getLoggingConfig());
+    }
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -197,7 +193,10 @@ public int getSerializedSize() {
     if (gcfsConfig_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getGcfsConfig());
     }
-    size += unknownFields.getSerializedSize();
+    if (loggingConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getLoggingConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -217,7 +216,11 @@ public boolean equals(final java.lang.Object obj) {
     if (hasGcfsConfig()) {
       if (!getGcfsConfig().equals(other.getGcfsConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (hasLoggingConfig() != other.hasLoggingConfig()) return false;
+    if (hasLoggingConfig()) {
+      if (!getLoggingConfig().equals(other.getLoggingConfig())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -232,7 +235,11 @@ public int hashCode() {
       hash = (37 * hash) + GCFS_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getGcfsConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    if (hasLoggingConfig()) {
+      hash = (37 * hash) + LOGGING_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getLoggingConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -361,17 +368,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NodeConfigDefaults.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -383,6 +383,12 @@ public Builder clear() {
         gcfsConfig_ = null;
         gcfsConfigBuilder_ = null;
       }
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
       return this;
     }
 
@@ -415,6 +421,11 @@ public com.google.container.v1beta1.NodeConfigDefaults buildPartial() {
       } else {
         result.gcfsConfig_ = gcfsConfigBuilder_.build();
       }
+      if (loggingConfigBuilder_ == null) {
+        result.loggingConfig_ = loggingConfig_;
+      } else {
+        result.loggingConfig_ = loggingConfigBuilder_.build();
+      }
       onBuilt();
       return result;
     }
@@ -468,7 +479,10 @@ public Builder mergeFrom(com.google.container.v1beta1.NodeConfigDefaults other)
       if (other.hasGcfsConfig()) {
         mergeGcfsConfig(other.getGcfsConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      if (other.hasLoggingConfig()) {
+        mergeLoggingConfig(other.getLoggingConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -483,17 +497,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodeConfigDefaults parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getGcfsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 26:
+              {
+                input.readMessage(getLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodeConfigDefaults) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -682,6 +722,192 @@ public com.google.container.v1beta1.GcfsConfigOrBuilder getGcfsConfigOrBuilder()
       return gcfsConfigBuilder_;
     }
 
+    private com.google.container.v1beta1.NodePoolLoggingConfig loggingConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1beta1.NodePoolLoggingConfig,
+            com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>
+        loggingConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+     *
+     * @return Whether the loggingConfig field is set.
+     */
+    public boolean hasLoggingConfig() {
+      return loggingConfigBuilder_ != null || loggingConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+     *
+     * @return The loggingConfig.
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfig getLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        return loggingConfig_ == null
+            ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      } else {
+        return loggingConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public Builder setLoggingConfig(com.google.container.v1beta1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        loggingConfig_ = value;
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public Builder setLoggingConfig(
+        com.google.container.v1beta1.NodePoolLoggingConfig.Builder builderForValue) {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public Builder mergeLoggingConfig(com.google.container.v1beta1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (loggingConfig_ != null) {
+          loggingConfig_ =
+              com.google.container.v1beta1.NodePoolLoggingConfig.newBuilder(loggingConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          loggingConfig_ = value;
+        }
+        onChanged();
+      } else {
+        loggingConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public Builder clearLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+        onChanged();
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfig.Builder getLoggingConfigBuilder() {
+
+      onChanged();
+      return getLoggingConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+      if (loggingConfigBuilder_ != null) {
+        return loggingConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return loggingConfig_ == null
+            ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration for node pools.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1beta1.NodePoolLoggingConfig,
+            com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>
+        getLoggingConfigFieldBuilder() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.container.v1beta1.NodePoolLoggingConfig,
+                com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+                com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>(
+                getLoggingConfig(), getParentForChildren(), isClean());
+        loggingConfig_ = null;
+      }
+      return loggingConfigBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
@@ -714,7 +940,18 @@ public NodeConfigDefaults parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeConfigDefaults(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigDefaultsOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigDefaultsOrBuilder.java
index 5b63f223..b9cd3b6f 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigDefaultsOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigDefaultsOrBuilder.java
@@ -57,4 +57,39 @@ public interface NodeConfigDefaultsOrBuilder
    * .google.container.v1beta1.GcfsConfig gcfs_config = 1;
    */
   com.google.container.v1beta1.GcfsConfigOrBuilder getGcfsConfigOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  boolean hasLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+   *
+   * @return The loggingConfig.
+   */
+  com.google.container.v1beta1.NodePoolLoggingConfig getLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration for node pools.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 3;
+   */
+  com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder();
 }
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigOrBuilder.java
index f15a25fb..e9277816 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeConfigOrBuilder.java
@@ -814,7 +814,7 @@ java.lang.String getLabelsOrDefault(
    * `minCpuPlatform: "Intel Haswell"` or
    * `minCpuPlatform: "Intel Sandy Bridge"`. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * 

    *
    * string min_cpu_platform = 13;
@@ -832,7 +832,7 @@ java.lang.String getLabelsOrDefault(
    * `minCpuPlatform: "Intel Haswell"` or
    * `minCpuPlatform: "Intel Sandy Bridge"`. For more
    * information, read [how to specify min CPU
-   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+   * platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
    * 

    *
    * string min_cpu_platform = 13;
@@ -1273,4 +1273,39 @@ java.lang.String getLabelsOrDefault(
    * .google.container.v1beta1.ConfidentialNodes confidential_nodes = 35;
    */
   com.google.container.v1beta1.ConfidentialNodesOrBuilder getConfidentialNodesOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  boolean hasLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+   *
+   * @return The loggingConfig.
+   */
+  com.google.container.v1beta1.NodePoolLoggingConfig getLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 38;
+   */
+  com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder();
 }
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeKubeletConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeKubeletConfig.java
index 0d727e9f..000c1fec 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeKubeletConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeKubeletConfig.java
@@ -53,79 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeKubeletConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              cpuManagerPolicy_ = s;
-              break;
-            }
-          case 18:
-            {
-              com.google.protobuf.BoolValue.Builder subBuilder = null;
-              if (cpuCfsQuota_ != null) {
-                subBuilder = cpuCfsQuota_.toBuilder();
-              }
-              cpuCfsQuota_ =
-                  input.readMessage(com.google.protobuf.BoolValue.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(cpuCfsQuota_);
-                cpuCfsQuota_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              cpuCfsQuotaPeriod_ = s;
-              break;
-            }
-          case 32:
-            {
-              podPidsLimit_ = input.readInt64();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodeKubeletConfig_descriptor;
@@ -375,7 +302,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (podPidsLimit_ != 0L) {
       output.writeInt64(4, podPidsLimit_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -396,7 +323,7 @@ public int getSerializedSize() {
     if (podPidsLimit_ != 0L) {
       size += com.google.protobuf.CodedOutputStream.computeInt64Size(4, podPidsLimit_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -419,7 +346,7 @@ public boolean equals(final java.lang.Object obj) {
     }
     if (!getCpuCfsQuotaPeriod().equals(other.getCpuCfsQuotaPeriod())) return false;
     if (getPodPidsLimit() != other.getPodPidsLimit()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -440,7 +367,7 @@ public int hashCode() {
     hash = (53 * hash) + getCpuCfsQuotaPeriod().hashCode();
     hash = (37 * hash) + POD_PIDS_LIMIT_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getPodPidsLimit());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -569,17 +496,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NodeKubeletConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -695,7 +615,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodeKubeletConfig other) {
       if (other.getPodPidsLimit() != 0L) {
         setPodPidsLimit(other.getPodPidsLimit());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -710,17 +630,55 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodeKubeletConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                cpuManagerPolicy_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(getCpuCfsQuotaFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 18
+            case 26:
+              {
+                cpuCfsQuotaPeriod_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 32:
+              {
+                podPidsLimit_ = input.readInt64();
+
+                break;
+              } // case 32
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodeKubeletConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1332,7 +1290,18 @@ public NodeKubeletConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeKubeletConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeLabels.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeLabels.java
index fcb20e74..b7dee2ce 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeLabels.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeLabels.java
@@ -51,59 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeLabels(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                labels_ =
-                    com.google.protobuf.MapField.newMapField(LabelsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000001;
-              }
-              com.google.protobuf.MapEntry labels__ =
-                  input.readMessage(
-                      LabelsDefaultEntryHolder.defaultEntry.getParserForType(), extensionRegistry);
-              labels_.getMutableMap().put(labels__.getKey(), labels__.getValue());
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodeLabels_descriptor;
@@ -244,7 +191,7 @@ public final boolean isInitialized() {
   public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
     com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
         output, internalGetLabels(), LabelsDefaultEntryHolder.defaultEntry, 1);
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -263,7 +210,7 @@ public int getSerializedSize() {
               .build();
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, labels__);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -279,7 +226,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1beta1.NodeLabels other = (com.google.container.v1beta1.NodeLabels) obj;
 
     if (!internalGetLabels().equals(other.internalGetLabels())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -294,7 +241,7 @@ public int hashCode() {
       hash = (37 * hash) + LABELS_FIELD_NUMBER;
       hash = (53 * hash) + internalGetLabels().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -444,17 +391,10 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1beta1.NodeLabels.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -541,7 +481,7 @@ public Builder mergeFrom(com.google.protobuf.Message other) {
     public Builder mergeFrom(com.google.container.v1beta1.NodeLabels other) {
       if (other == com.google.container.v1beta1.NodeLabels.getDefaultInstance()) return this;
       internalGetMutableLabels().mergeFrom(other.internalGetLabels());
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -556,17 +496,42 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodeLabels parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.protobuf.MapEntry labels__ =
+                    input.readMessage(
+                        LabelsDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableLabels()
+                    .getMutableMap()
+                    .put(labels__.getKey(), labels__.getValue());
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodeLabels) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -762,7 +727,18 @@ public NodeLabels parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeLabels(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeManagement.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeManagement.java
index 404af253..0d4e84b0 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeManagement.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeManagement.java
@@ -51,71 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeManagement(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              autoUpgrade_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              autoRepair_ = input.readBool();
-              break;
-            }
-          case 82:
-            {
-              com.google.container.v1beta1.AutoUpgradeOptions.Builder subBuilder = null;
-              if (upgradeOptions_ != null) {
-                subBuilder = upgradeOptions_.toBuilder();
-              }
-              upgradeOptions_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.AutoUpgradeOptions.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(upgradeOptions_);
-                upgradeOptions_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodeManagement_descriptor;
@@ -238,7 +173,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (upgradeOptions_ != null) {
       output.writeMessage(10, getUpgradeOptions());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -256,7 +191,7 @@ public int getSerializedSize() {
     if (upgradeOptions_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(10, getUpgradeOptions());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -278,7 +213,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasUpgradeOptions()) {
       if (!getUpgradeOptions().equals(other.getUpgradeOptions())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -297,7 +232,7 @@ public int hashCode() {
       hash = (37 * hash) + UPGRADE_OPTIONS_FIELD_NUMBER;
       hash = (53 * hash) + getUpgradeOptions().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -427,17 +362,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NodeManagement.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -545,7 +473,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodeManagement other) {
       if (other.hasUpgradeOptions()) {
         mergeUpgradeOptions(other.getUpgradeOptions());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -560,17 +488,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodeManagement parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                autoUpgrade_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                autoRepair_ = input.readBool();
+
+                break;
+              } // case 16
+            case 82:
+              {
+                input.readMessage(getUpgradeOptionsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 82
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodeManagement) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -896,7 +856,18 @@ public NodeManagement parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeManagement(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeNetworkConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeNetworkConfig.java
index 7f2cc94c..452748fa 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeNetworkConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeNetworkConfig.java
@@ -53,84 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeNetworkConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 32:
-            {
-              createPodRange_ = input.readBool();
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              podRange_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              podIpv4CidrBlock_ = s;
-              break;
-            }
-          case 90:
-            {
-              com.google.container.v1beta1.NodeNetworkConfig.NetworkPerformanceConfig.Builder
-                  subBuilder = null;
-              if (((bitField0_ & 0x00000001) != 0)) {
-                subBuilder = networkPerformanceConfig_.toBuilder();
-              }
-              networkPerformanceConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeNetworkConfig.NetworkPerformanceConfig
-                          .parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkPerformanceConfig_);
-                networkPerformanceConfig_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000001;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodeNetworkConfig_descriptor;
@@ -277,60 +199,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private NetworkPerformanceConfig(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                int rawValue = input.readEnum();
-                bitField0_ |= 0x00000001;
-                totalEgressBandwidthTier_ = rawValue;
-                break;
-              }
-            case 16:
-              {
-                int rawValue = input.readEnum();
-                bitField0_ |= 0x00000002;
-                externalIpEgressBandwidthTier_ = rawValue;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_NodeNetworkConfig_NetworkPerformanceConfig_descriptor;
@@ -634,7 +502,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (((bitField0_ & 0x00000002) != 0)) {
         output.writeEnum(2, externalIpEgressBandwidthTier_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -651,7 +519,7 @@ public int getSerializedSize() {
             com.google.protobuf.CodedOutputStream.computeEnumSize(
                 2, externalIpEgressBandwidthTier_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -677,7 +545,7 @@ public boolean equals(final java.lang.Object obj) {
       if (hasExternalIpEgressBandwidthTier()) {
         if (externalIpEgressBandwidthTier_ != other.externalIpEgressBandwidthTier_) return false;
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -696,7 +564,7 @@ public int hashCode() {
         hash = (37 * hash) + EXTERNAL_IP_EGRESS_BANDWIDTH_TIER_FIELD_NUMBER;
         hash = (53 * hash) + externalIpEgressBandwidthTier_;
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -831,17 +699,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
       // Construct using
       // com.google.container.v1beta1.NodeNetworkConfig.NetworkPerformanceConfig.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -955,7 +816,7 @@ public Builder mergeFrom(
         if (other.hasExternalIpEgressBandwidthTier()) {
           setExternalIpEgressBandwidthTier(other.getExternalIpEgressBandwidthTier());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -970,20 +831,43 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.NodeNetworkConfig.NetworkPerformanceConfig parsedMessage =
-            null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  totalEgressBandwidthTier_ = input.readEnum();
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 8
+              case 16:
+                {
+                  externalIpEgressBandwidthTier_ = input.readEnum();
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 16
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.NodeNetworkConfig.NetworkPerformanceConfig)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1279,7 +1163,19 @@ public NetworkPerformanceConfig parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new NetworkPerformanceConfig(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1538,7 +1434,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeMessage(11, getNetworkPerformanceConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1561,7 +1457,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               11, getNetworkPerformanceConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1584,7 +1480,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasNetworkPerformanceConfig()) {
       if (!getNetworkPerformanceConfig().equals(other.getNetworkPerformanceConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1605,7 +1501,7 @@ public int hashCode() {
       hash = (37 * hash) + NETWORK_PERFORMANCE_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getNetworkPerformanceConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1868,7 +1764,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodeNetworkConfig other) {
       if (other.hasNetworkPerformanceConfig()) {
         mergeNetworkPerformanceConfig(other.getNetworkPerformanceConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1883,17 +1779,56 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodeNetworkConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 32:
+              {
+                createPodRange_ = input.readBool();
+
+                break;
+              } // case 32
+            case 42:
+              {
+                podRange_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                podIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 90:
+              {
+                input.readMessage(
+                    getNetworkPerformanceConfigFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 90
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodeNetworkConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2503,7 +2438,18 @@ public NodeNetworkConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeNetworkConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePool.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePool.java
index 5fd12870..55793187 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePool.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePool.java
@@ -82,262 +82,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodePool(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 18:
-            {
-              com.google.container.v1beta1.NodeConfig.Builder subBuilder = null;
-              if (config_ != null) {
-                subBuilder = config_.toBuilder();
-              }
-              config_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(config_);
-                config_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 24:
-            {
-              initialNodeCount_ = input.readInt32();
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1beta1.NodePoolAutoscaling.Builder subBuilder = null;
-              if (autoscaling_ != null) {
-                subBuilder = autoscaling_.toBuilder();
-              }
-              autoscaling_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePoolAutoscaling.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(autoscaling_);
-                autoscaling_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1beta1.NodeManagement.Builder subBuilder = null;
-              if (management_ != null) {
-                subBuilder = management_.toBuilder();
-              }
-              management_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeManagement.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(management_);
-                management_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              com.google.container.v1beta1.MaxPodsConstraint.Builder subBuilder = null;
-              if (maxPodsConstraint_ != null) {
-                subBuilder = maxPodsConstraint_.toBuilder();
-              }
-              maxPodsConstraint_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MaxPodsConstraint.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(maxPodsConstraint_);
-                maxPodsConstraint_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 56:
-            {
-              podIpv4CidrSize_ = input.readInt32();
-              break;
-            }
-          case 106:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                locations_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              locations_.add(s);
-              break;
-            }
-          case 114:
-            {
-              com.google.container.v1beta1.NodeNetworkConfig.Builder subBuilder = null;
-              if (networkConfig_ != null) {
-                subBuilder = networkConfig_.toBuilder();
-              }
-              networkConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeNetworkConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkConfig_);
-                networkConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 802:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              selfLink_ = s;
-              break;
-            }
-          case 810:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              version_ = s;
-              break;
-            }
-          case 818:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                instanceGroupUrls_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              instanceGroupUrls_.add(s);
-              break;
-            }
-          case 824:
-            {
-              int rawValue = input.readEnum();
-
-              status_ = rawValue;
-              break;
-            }
-          case 834:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              statusMessage_ = s;
-              break;
-            }
-          case 842:
-            {
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                conditions_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000004;
-              }
-              conditions_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.StatusCondition.parser(), extensionRegistry));
-              break;
-            }
-          case 858:
-            {
-              com.google.container.v1beta1.NodePool.UpgradeSettings.Builder subBuilder = null;
-              if (upgradeSettings_ != null) {
-                subBuilder = upgradeSettings_.toBuilder();
-              }
-              upgradeSettings_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePool.UpgradeSettings.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(upgradeSettings_);
-                upgradeSettings_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 866:
-            {
-              com.google.container.v1beta1.NodePool.PlacementPolicy.Builder subBuilder = null;
-              if (placementPolicy_ != null) {
-                subBuilder = placementPolicy_.toBuilder();
-              }
-              placementPolicy_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePool.PlacementPolicy.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(placementPolicy_);
-                placementPolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 874:
-            {
-              com.google.container.v1beta1.NodePool.UpdateInfo.Builder subBuilder = null;
-              if (updateInfo_ != null) {
-                subBuilder = updateInfo_.toBuilder();
-              }
-              updateInfo_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePool.UpdateInfo.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(updateInfo_);
-                updateInfo_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        locations_ = locations_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        instanceGroupUrls_ = instanceGroupUrls_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000004) != 0)) {
-        conditions_ = java.util.Collections.unmodifiableList(conditions_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodePool_descriptor;
@@ -771,79 +515,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private UpgradeSettings(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                maxSurge_ = input.readInt32();
-                break;
-              }
-            case 16:
-              {
-                maxUnavailable_ = input.readInt32();
-                break;
-              }
-            case 24:
-              {
-                int rawValue = input.readEnum();
-                bitField0_ |= 0x00000001;
-                strategy_ = rawValue;
-                break;
-              }
-            case 34:
-              {
-                com.google.container.v1beta1.BlueGreenSettings.Builder subBuilder = null;
-                if (((bitField0_ & 0x00000002) != 0)) {
-                  subBuilder = blueGreenSettings_.toBuilder();
-                }
-                blueGreenSettings_ =
-                    input.readMessage(
-                        com.google.container.v1beta1.BlueGreenSettings.parser(), extensionRegistry);
-                if (subBuilder != null) {
-                  subBuilder.mergeFrom(blueGreenSettings_);
-                  blueGreenSettings_ = subBuilder.buildPartial();
-                }
-                bitField0_ |= 0x00000002;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_NodePool_UpgradeSettings_descriptor;
@@ -1028,7 +699,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (((bitField0_ & 0x00000002) != 0)) {
         output.writeMessage(4, getBlueGreenSettings());
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -1049,7 +720,7 @@ public int getSerializedSize() {
       if (((bitField0_ & 0x00000002) != 0)) {
         size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getBlueGreenSettings());
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -1075,7 +746,7 @@ public boolean equals(final java.lang.Object obj) {
       if (hasBlueGreenSettings()) {
         if (!getBlueGreenSettings().equals(other.getBlueGreenSettings())) return false;
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -1098,7 +769,7 @@ public int hashCode() {
         hash = (37 * hash) + BLUE_GREEN_SETTINGS_FIELD_NUMBER;
         hash = (53 * hash) + getBlueGreenSettings().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -1387,7 +1058,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodePool.UpgradeSettings o
         if (other.hasBlueGreenSettings()) {
           mergeBlueGreenSettings(other.getBlueGreenSettings());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -1402,18 +1073,56 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.NodePool.UpgradeSettings parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  maxSurge_ = input.readInt32();
+
+                  break;
+                } // case 8
+              case 16:
+                {
+                  maxUnavailable_ = input.readInt32();
+
+                  break;
+                } // case 16
+              case 24:
+                {
+                  strategy_ = input.readEnum();
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 24
+              case 34:
+                {
+                  input.readMessage(
+                      getBlueGreenSettingsFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 34
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.NodePool.UpgradeSettings) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1862,7 +1571,19 @@ public UpgradeSettings parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new UpgradeSettings(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1955,63 +1676,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private UpdateInfo(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10:
-              {
-                com.google.container.v1beta1.NodePool.UpdateInfo.BlueGreenInfo.Builder subBuilder =
-                    null;
-                if (blueGreenInfo_ != null) {
-                  subBuilder = blueGreenInfo_.toBuilder();
-                }
-                blueGreenInfo_ =
-                    input.readMessage(
-                        com.google.container.v1beta1.NodePool.UpdateInfo.BlueGreenInfo.parser(),
-                        extensionRegistry);
-                if (subBuilder != null) {
-                  subBuilder.mergeFrom(blueGreenInfo_);
-                  blueGreenInfo_ = subBuilder.buildPartial();
-                }
-
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_NodePool_UpdateInfo_descriptor;
@@ -2265,94 +1929,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
         return this.unknownFields;
       }
 
-      private BlueGreenInfo(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        this();
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
-        int mutable_bitField0_ = 0;
-        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-            com.google.protobuf.UnknownFieldSet.newBuilder();
-        try {
-          boolean done = false;
-          while (!done) {
-            int tag = input.readTag();
-            switch (tag) {
-              case 0:
-                done = true;
-                break;
-              case 8:
-                {
-                  int rawValue = input.readEnum();
-
-                  phase_ = rawValue;
-                  break;
-                }
-              case 18:
-                {
-                  java.lang.String s = input.readStringRequireUtf8();
-                  if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                    blueInstanceGroupUrls_ = new com.google.protobuf.LazyStringArrayList();
-                    mutable_bitField0_ |= 0x00000001;
-                  }
-                  blueInstanceGroupUrls_.add(s);
-                  break;
-                }
-              case 26:
-                {
-                  java.lang.String s = input.readStringRequireUtf8();
-                  if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                    greenInstanceGroupUrls_ = new com.google.protobuf.LazyStringArrayList();
-                    mutable_bitField0_ |= 0x00000002;
-                  }
-                  greenInstanceGroupUrls_.add(s);
-                  break;
-                }
-              case 34:
-                {
-                  java.lang.String s = input.readStringRequireUtf8();
-
-                  bluePoolDeletionStartTime_ = s;
-                  break;
-                }
-              case 42:
-                {
-                  java.lang.String s = input.readStringRequireUtf8();
-
-                  greenPoolVersion_ = s;
-                  break;
-                }
-              default:
-                {
-                  if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                    done = true;
-                  }
-                  break;
-                }
-            }
-          }
-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          throw e.setUnfinishedMessage(this);
-        } catch (com.google.protobuf.UninitializedMessageException e) {
-          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-        } catch (java.io.IOException e) {
-          throw new com.google.protobuf.InvalidProtocolBufferException(e)
-              .setUnfinishedMessage(this);
-        } finally {
-          if (((mutable_bitField0_ & 0x00000001) != 0)) {
-            blueInstanceGroupUrls_ = blueInstanceGroupUrls_.getUnmodifiableView();
-          }
-          if (((mutable_bitField0_ & 0x00000002) != 0)) {
-            greenInstanceGroupUrls_ = greenInstanceGroupUrls_.getUnmodifiableView();
-          }
-          this.unknownFields = unknownFields.build();
-          makeExtensionsImmutable();
-        }
-      }
-
       public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         return com.google.container.v1beta1.ClusterServiceProto
             .internal_static_google_container_v1beta1_NodePool_UpdateInfo_BlueGreenInfo_descriptor;
@@ -2948,7 +2524,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greenPoolVersion_)) {
           com.google.protobuf.GeneratedMessageV3.writeString(output, 5, greenPoolVersion_);
         }
-        unknownFields.writeTo(output);
+        getUnknownFields().writeTo(output);
       }
 
       @java.lang.Override
@@ -2987,7 +2563,7 @@ public int getSerializedSize() {
         if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(greenPoolVersion_)) {
           size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, greenPoolVersion_);
         }
-        size += unknownFields.getSerializedSize();
+        size += getUnknownFields().getSerializedSize();
         memoizedSize = size;
         return size;
       }
@@ -3011,7 +2587,7 @@ public boolean equals(final java.lang.Object obj) {
         if (!getBluePoolDeletionStartTime().equals(other.getBluePoolDeletionStartTime()))
           return false;
         if (!getGreenPoolVersion().equals(other.getGreenPoolVersion())) return false;
-        if (!unknownFields.equals(other.unknownFields)) return false;
+        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
         return true;
       }
 
@@ -3036,7 +2612,7 @@ public int hashCode() {
         hash = (53 * hash) + getBluePoolDeletionStartTime().hashCode();
         hash = (37 * hash) + GREEN_POOL_VERSION_FIELD_NUMBER;
         hash = (53 * hash) + getGreenPoolVersion().hashCode();
-        hash = (29 * hash) + unknownFields.hashCode();
+        hash = (29 * hash) + getUnknownFields().hashCode();
         memoizedHashCode = hash;
         return hash;
       }
@@ -3171,17 +2747,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
         // Construct using
         // com.google.container.v1beta1.NodePool.UpdateInfo.BlueGreenInfo.newBuilder()
-        private Builder() {
-          maybeForceBuilderInitialization();
-        }
+        private Builder() {}
 
         private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
           super(parent);
-          maybeForceBuilderInitialization();
-        }
-
-        private void maybeForceBuilderInitialization() {
-          if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
         }
 
         @java.lang.Override
@@ -3326,7 +2895,7 @@ public Builder mergeFrom(
             greenPoolVersion_ = other.greenPoolVersion_;
             onChanged();
           }
-          this.mergeUnknownFields(other.unknownFields);
+          this.mergeUnknownFields(other.getUnknownFields());
           onChanged();
           return this;
         }
@@ -3341,19 +2910,63 @@ public Builder mergeFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws java.io.IOException {
-          com.google.container.v1beta1.NodePool.UpdateInfo.BlueGreenInfo parsedMessage = null;
+          if (extensionRegistry == null) {
+            throw new java.lang.NullPointerException();
+          }
           try {
-            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+            boolean done = false;
+            while (!done) {
+              int tag = input.readTag();
+              switch (tag) {
+                case 0:
+                  done = true;
+                  break;
+                case 8:
+                  {
+                    phase_ = input.readEnum();
+
+                    break;
+                  } // case 8
+                case 18:
+                  {
+                    java.lang.String s = input.readStringRequireUtf8();
+                    ensureBlueInstanceGroupUrlsIsMutable();
+                    blueInstanceGroupUrls_.add(s);
+                    break;
+                  } // case 18
+                case 26:
+                  {
+                    java.lang.String s = input.readStringRequireUtf8();
+                    ensureGreenInstanceGroupUrlsIsMutable();
+                    greenInstanceGroupUrls_.add(s);
+                    break;
+                  } // case 26
+                case 34:
+                  {
+                    bluePoolDeletionStartTime_ = input.readStringRequireUtf8();
+
+                    break;
+                  } // case 34
+                case 42:
+                  {
+                    greenPoolVersion_ = input.readStringRequireUtf8();
+
+                    break;
+                  } // case 42
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
           } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-            parsedMessage =
-                (com.google.container.v1beta1.NodePool.UpdateInfo.BlueGreenInfo)
-                    e.getUnfinishedMessage();
             throw e.unwrapIOException();
           } finally {
-            if (parsedMessage != null) {
-              mergeFrom(parsedMessage);
-            }
-          }
+            onChanged();
+          } // finally
           return this;
         }
 
@@ -4079,7 +3692,19 @@ public BlueGreenInfo parsePartialFrom(
                 com.google.protobuf.CodedInputStream input,
                 com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                 throws com.google.protobuf.InvalidProtocolBufferException {
-              return new BlueGreenInfo(input, extensionRegistry);
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
             }
           };
 
@@ -4165,7 +3790,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (blueGreenInfo_ != null) {
         output.writeMessage(1, getBlueGreenInfo());
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -4177,7 +3802,7 @@ public int getSerializedSize() {
       if (blueGreenInfo_ != null) {
         size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getBlueGreenInfo());
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -4197,7 +3822,7 @@ public boolean equals(final java.lang.Object obj) {
       if (hasBlueGreenInfo()) {
         if (!getBlueGreenInfo().equals(other.getBlueGreenInfo())) return false;
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -4212,7 +3837,7 @@ public int hashCode() {
         hash = (37 * hash) + BLUE_GREEN_INFO_FIELD_NUMBER;
         hash = (53 * hash) + getBlueGreenInfo().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -4344,17 +3969,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1beta1.NodePool.UpdateInfo.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -4453,7 +4071,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodePool.UpdateInfo other)
         if (other.hasBlueGreenInfo()) {
           mergeBlueGreenInfo(other.getBlueGreenInfo());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -4468,18 +4086,37 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.NodePool.UpdateInfo parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  input.readMessage(getBlueGreenInfoFieldBuilder().getBuilder(), extensionRegistry);
+
+                  break;
+                } // case 10
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.NodePool.UpdateInfo) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -4716,7 +4353,19 @@ public UpdateInfo parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new UpdateInfo(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -4799,52 +4448,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private PlacementPolicy(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                int rawValue = input.readEnum();
-
-                type_ = rawValue;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_NodePool_PlacementPolicy_descriptor;
@@ -5058,7 +4661,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
               .getNumber()) {
         output.writeEnum(1, type_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -5072,7 +4675,7 @@ public int getSerializedSize() {
               .getNumber()) {
         size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, type_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -5089,7 +4692,7 @@ public boolean equals(final java.lang.Object obj) {
           (com.google.container.v1beta1.NodePool.PlacementPolicy) obj;
 
       if (type_ != other.type_) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -5102,7 +4705,7 @@ public int hashCode() {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + TYPE_FIELD_NUMBER;
       hash = (53 * hash) + type_;
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -5234,17 +4837,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1beta1.NodePool.PlacementPolicy.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -5335,7 +4931,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodePool.PlacementPolicy o
         if (other.type_ != 0) {
           setTypeValue(other.getTypeValue());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -5350,18 +4946,37 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.NodePool.PlacementPolicy parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  type_ = input.readEnum();
+
+                  break;
+                } // case 8
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.NodePool.PlacementPolicy) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -5491,7 +5106,19 @@ public PlacementPolicy parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new PlacementPolicy(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -5991,7 +5618,7 @@ public com.google.container.v1beta1.NodePool.Status getStatus() {
    * string status_message = 104 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.NodePool.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3452
+   *     google/container/v1beta1/cluster_service.proto;l=3465
    * @return The statusMessage.
    */
   @java.lang.Override
@@ -6019,7 +5646,7 @@ public java.lang.String getStatusMessage() {
    * string status_message = 104 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.NodePool.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3452
+   *     google/container/v1beta1/cluster_service.proto;l=3465
    * @return The bytes for statusMessage.
    */
   @java.lang.Override
@@ -6496,7 +6123,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (updateInfo_ != null) {
       output.writeMessage(109, getUpdateInfo());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -6569,7 +6196,7 @@ public int getSerializedSize() {
     if (updateInfo_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(109, getUpdateInfo());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -6626,7 +6253,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasUpdateInfo()) {
       if (!getUpdateInfo().equals(other.getUpdateInfo())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -6695,7 +6322,7 @@ public int hashCode() {
       hash = (37 * hash) + UPDATE_INFO_FIELD_NUMBER;
       hash = (53 * hash) + getUpdateInfo().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -6846,19 +6473,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NodePool.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getConditionsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -6912,10 +6530,11 @@ public Builder clear() {
       }
       if (conditionsBuilder_ == null) {
         conditions_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000004);
       } else {
+        conditions_ = null;
         conditionsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000004);
       podIpv4CidrSize_ = 0;
 
       if (upgradeSettingsBuilder_ == null) {
@@ -7175,7 +6794,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodePool other) {
       if (other.hasUpdateInfo()) {
         mergeUpdateInfo(other.getUpdateInfo());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -7190,17 +6809,149 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodePool parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(getConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 18
+            case 24:
+              {
+                initialNodeCount_ = input.readInt32();
+
+                break;
+              } // case 24
+            case 34:
+              {
+                input.readMessage(getAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                input.readMessage(getManagementFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 50:
+              {
+                input.readMessage(
+                    getMaxPodsConstraintFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 50
+            case 56:
+              {
+                podIpv4CidrSize_ = input.readInt32();
+
+                break;
+              } // case 56
+            case 106:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureLocationsIsMutable();
+                locations_.add(s);
+                break;
+              } // case 106
+            case 114:
+              {
+                input.readMessage(getNetworkConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 114
+            case 802:
+              {
+                selfLink_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 802
+            case 810:
+              {
+                version_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 810
+            case 818:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureInstanceGroupUrlsIsMutable();
+                instanceGroupUrls_.add(s);
+                break;
+              } // case 818
+            case 824:
+              {
+                status_ = input.readEnum();
+
+                break;
+              } // case 824
+            case 834:
+              {
+                statusMessage_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 834
+            case 842:
+              {
+                com.google.container.v1beta1.StatusCondition m =
+                    input.readMessage(
+                        com.google.container.v1beta1.StatusCondition.parser(), extensionRegistry);
+                if (conditionsBuilder_ == null) {
+                  ensureConditionsIsMutable();
+                  conditions_.add(m);
+                } else {
+                  conditionsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 842
+            case 858:
+              {
+                input.readMessage(getUpgradeSettingsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 858
+            case 866:
+              {
+                input.readMessage(getPlacementPolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 866
+            case 874:
+              {
+                input.readMessage(getUpdateInfoFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 874
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodePool) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -8504,7 +8255,7 @@ public Builder clearStatus() {
      * string status_message = 104 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.NodePool.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3452
+     *     google/container/v1beta1/cluster_service.proto;l=3465
      * @return The statusMessage.
      */
     @java.lang.Deprecated
@@ -8531,7 +8282,7 @@ public java.lang.String getStatusMessage() {
      * string status_message = 104 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.NodePool.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3452
+     *     google/container/v1beta1/cluster_service.proto;l=3465
      * @return The bytes for statusMessage.
      */
     @java.lang.Deprecated
@@ -8558,7 +8309,7 @@ public com.google.protobuf.ByteString getStatusMessageBytes() {
      * string status_message = 104 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.NodePool.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3452
+     *     google/container/v1beta1/cluster_service.proto;l=3465
      * @param value The statusMessage to set.
      * @return This builder for chaining.
      */
@@ -8584,7 +8335,7 @@ public Builder setStatusMessage(java.lang.String value) {
      * string status_message = 104 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.NodePool.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3452
+     *     google/container/v1beta1/cluster_service.proto;l=3465
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -8606,7 +8357,7 @@ public Builder clearStatusMessage() {
      * string status_message = 104 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.NodePool.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3452
+     *     google/container/v1beta1/cluster_service.proto;l=3465
      * @param value The bytes for statusMessage to set.
      * @return This builder for chaining.
      */
@@ -10224,7 +9975,18 @@ public NodePool parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodePool(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolAutoConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolAutoConfig.java
index 98fcecbd..519b91f4 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolAutoConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolAutoConfig.java
@@ -51,61 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodePoolAutoConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.NetworkTags.Builder subBuilder = null;
-              if (networkTags_ != null) {
-                subBuilder = networkTags_.toBuilder();
-              }
-              networkTags_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NetworkTags.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkTags_);
-                networkTags_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodePoolAutoConfig_descriptor;
@@ -195,7 +140,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (networkTags_ != null) {
       output.writeMessage(1, getNetworkTags());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -207,7 +152,7 @@ public int getSerializedSize() {
     if (networkTags_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getNetworkTags());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -227,7 +172,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasNetworkTags()) {
       if (!getNetworkTags().equals(other.getNetworkTags())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -242,7 +187,7 @@ public int hashCode() {
       hash = (37 * hash) + NETWORK_TAGS_FIELD_NUMBER;
       hash = (53 * hash) + getNetworkTags().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -372,17 +317,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NodePoolAutoConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -479,7 +417,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodePoolAutoConfig other)
       if (other.hasNetworkTags()) {
         mergeNetworkTags(other.getNetworkTags());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -494,17 +432,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodePoolAutoConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getNetworkTagsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodePoolAutoConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -753,7 +711,18 @@ public NodePoolAutoConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodePoolAutoConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolAutoscaling.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolAutoscaling.java
index 2eabb876..09d6231f 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolAutoscaling.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolAutoscaling.java
@@ -53,82 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodePoolAutoscaling(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              minNodeCount_ = input.readInt32();
-              break;
-            }
-          case 24:
-            {
-              maxNodeCount_ = input.readInt32();
-              break;
-            }
-          case 32:
-            {
-              autoprovisioned_ = input.readBool();
-              break;
-            }
-          case 40:
-            {
-              int rawValue = input.readEnum();
-
-              locationPolicy_ = rawValue;
-              break;
-            }
-          case 48:
-            {
-              totalMinNodeCount_ = input.readInt32();
-              break;
-            }
-          case 56:
-            {
-              totalMaxNodeCount_ = input.readInt32();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodePoolAutoscaling_descriptor;
@@ -496,7 +420,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (totalMaxNodeCount_ != 0) {
       output.writeInt32(7, totalMaxNodeCount_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -529,7 +453,7 @@ public int getSerializedSize() {
     if (totalMaxNodeCount_ != 0) {
       size += com.google.protobuf.CodedOutputStream.computeInt32Size(7, totalMaxNodeCount_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -552,7 +476,7 @@ public boolean equals(final java.lang.Object obj) {
     if (locationPolicy_ != other.locationPolicy_) return false;
     if (getTotalMinNodeCount() != other.getTotalMinNodeCount()) return false;
     if (getTotalMaxNodeCount() != other.getTotalMaxNodeCount()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -577,7 +501,7 @@ public int hashCode() {
     hash = (53 * hash) + getTotalMinNodeCount();
     hash = (37 * hash) + TOTAL_MAX_NODE_COUNT_FIELD_NUMBER;
     hash = (53 * hash) + getTotalMaxNodeCount();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -707,17 +631,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NodePoolAutoscaling.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -842,7 +759,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodePoolAutoscaling other)
       if (other.getTotalMaxNodeCount() != 0) {
         setTotalMaxNodeCount(other.getTotalMaxNodeCount());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -857,17 +774,73 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodePoolAutoscaling parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                minNodeCount_ = input.readInt32();
+
+                break;
+              } // case 16
+            case 24:
+              {
+                maxNodeCount_ = input.readInt32();
+
+                break;
+              } // case 24
+            case 32:
+              {
+                autoprovisioned_ = input.readBool();
+
+                break;
+              } // case 32
+            case 40:
+              {
+                locationPolicy_ = input.readEnum();
+
+                break;
+              } // case 40
+            case 48:
+              {
+                totalMinNodeCount_ = input.readInt32();
+
+                break;
+              } // case 48
+            case 56:
+              {
+                totalMaxNodeCount_ = input.readInt32();
+
+                break;
+              } // case 56
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodePoolAutoscaling) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1338,7 +1311,18 @@ public NodePoolAutoscaling parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodePoolAutoscaling(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolDefaults.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolDefaults.java
index 4dbeb1ee..11375537 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolDefaults.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolDefaults.java
@@ -50,61 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodePoolDefaults(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.NodeConfigDefaults.Builder subBuilder = null;
-              if (nodeConfigDefaults_ != null) {
-                subBuilder = nodeConfigDefaults_.toBuilder();
-              }
-              nodeConfigDefaults_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeConfigDefaults.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodeConfigDefaults_);
-                nodeConfigDefaults_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodePoolDefaults_descriptor;
@@ -185,7 +130,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (nodeConfigDefaults_ != null) {
       output.writeMessage(1, getNodeConfigDefaults());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -197,7 +142,7 @@ public int getSerializedSize() {
     if (nodeConfigDefaults_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getNodeConfigDefaults());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -217,7 +162,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasNodeConfigDefaults()) {
       if (!getNodeConfigDefaults().equals(other.getNodeConfigDefaults())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -232,7 +177,7 @@ public int hashCode() {
       hash = (37 * hash) + NODE_CONFIG_DEFAULTS_FIELD_NUMBER;
       hash = (53 * hash) + getNodeConfigDefaults().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -361,17 +306,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NodePoolDefaults.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -467,7 +405,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodePoolDefaults other) {
       if (other.hasNodeConfigDefaults()) {
         mergeNodeConfigDefaults(other.getNodeConfigDefaults());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -482,17 +420,38 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodePoolDefaults parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getNodeConfigDefaultsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodePoolDefaults) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -715,7 +674,18 @@ public NodePoolDefaults parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodePoolDefaults(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolLoggingConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolLoggingConfig.java
new file mode 100644
index 00000000..8c4169ee
--- /dev/null
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolLoggingConfig.java
@@ -0,0 +1,704 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/container/v1beta1/cluster_service.proto
+
+package com.google.container.v1beta1;
+
+/**
+ *
+ *
+ * 
+ * NodePoolLoggingConfig specifies logging configuration for nodepools.
+ * 

+ *
+ * Protobuf type {@code google.container.v1beta1.NodePoolLoggingConfig}
+ */
+public final class NodePoolLoggingConfig extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.container.v1beta1.NodePoolLoggingConfig)
+    NodePoolLoggingConfigOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use NodePoolLoggingConfig.newBuilder() to construct.
+  private NodePoolLoggingConfig(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private NodePoolLoggingConfig() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new NodePoolLoggingConfig();
+  }
+
+  @java.lang.Override
+  public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
+    return this.unknownFields;
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.container.v1beta1.ClusterServiceProto
+        .internal_static_google_container_v1beta1_NodePoolLoggingConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.container.v1beta1.ClusterServiceProto
+        .internal_static_google_container_v1beta1_NodePoolLoggingConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.container.v1beta1.NodePoolLoggingConfig.class,
+            com.google.container.v1beta1.NodePoolLoggingConfig.Builder.class);
+  }
+
+  public static final int VARIANT_CONFIG_FIELD_NUMBER = 1;
+  private com.google.container.v1beta1.LoggingVariantConfig variantConfig_;
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+   *
+   * @return Whether the variantConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasVariantConfig() {
+    return variantConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+   *
+   * @return The variantConfig.
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.LoggingVariantConfig getVariantConfig() {
+    return variantConfig_ == null
+        ? com.google.container.v1beta1.LoggingVariantConfig.getDefaultInstance()
+        : variantConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.LoggingVariantConfigOrBuilder getVariantConfigOrBuilder() {
+    return getVariantConfig();
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (variantConfig_ != null) {
+      output.writeMessage(1, getVariantConfig());
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (variantConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getVariantConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.container.v1beta1.NodePoolLoggingConfig)) {
+      return super.equals(obj);
+    }
+    com.google.container.v1beta1.NodePoolLoggingConfig other =
+        (com.google.container.v1beta1.NodePoolLoggingConfig) obj;
+
+    if (hasVariantConfig() != other.hasVariantConfig()) return false;
+    if (hasVariantConfig()) {
+      if (!getVariantConfig().equals(other.getVariantConfig())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasVariantConfig()) {
+      hash = (37 * hash) + VARIANT_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getVariantConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.container.v1beta1.NodePoolLoggingConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * NodePoolLoggingConfig specifies logging configuration for nodepools.
+   * 

+   *
+   * Protobuf type {@code google.container.v1beta1.NodePoolLoggingConfig}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.container.v1beta1.NodePoolLoggingConfig)
+      com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.container.v1beta1.ClusterServiceProto
+          .internal_static_google_container_v1beta1_NodePoolLoggingConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.container.v1beta1.ClusterServiceProto
+          .internal_static_google_container_v1beta1_NodePoolLoggingConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.container.v1beta1.NodePoolLoggingConfig.class,
+              com.google.container.v1beta1.NodePoolLoggingConfig.Builder.class);
+    }
+
+    // Construct using com.google.container.v1beta1.NodePoolLoggingConfig.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      if (variantConfigBuilder_ == null) {
+        variantConfig_ = null;
+      } else {
+        variantConfig_ = null;
+        variantConfigBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.container.v1beta1.ClusterServiceProto
+          .internal_static_google_container_v1beta1_NodePoolLoggingConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.container.v1beta1.NodePoolLoggingConfig getDefaultInstanceForType() {
+      return com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.container.v1beta1.NodePoolLoggingConfig build() {
+      com.google.container.v1beta1.NodePoolLoggingConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.container.v1beta1.NodePoolLoggingConfig buildPartial() {
+      com.google.container.v1beta1.NodePoolLoggingConfig result =
+          new com.google.container.v1beta1.NodePoolLoggingConfig(this);
+      if (variantConfigBuilder_ == null) {
+        result.variantConfig_ = variantConfig_;
+      } else {
+        result.variantConfig_ = variantConfigBuilder_.build();
+      }
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.container.v1beta1.NodePoolLoggingConfig) {
+        return mergeFrom((com.google.container.v1beta1.NodePoolLoggingConfig) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.container.v1beta1.NodePoolLoggingConfig other) {
+      if (other == com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance())
+        return this;
+      if (other.hasVariantConfig()) {
+        mergeVariantConfig(other.getVariantConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getVariantConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private com.google.container.v1beta1.LoggingVariantConfig variantConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1beta1.LoggingVariantConfig,
+            com.google.container.v1beta1.LoggingVariantConfig.Builder,
+            com.google.container.v1beta1.LoggingVariantConfigOrBuilder>
+        variantConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+     *
+     * @return Whether the variantConfig field is set.
+     */
+    public boolean hasVariantConfig() {
+      return variantConfigBuilder_ != null || variantConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+     *
+     * @return The variantConfig.
+     */
+    public com.google.container.v1beta1.LoggingVariantConfig getVariantConfig() {
+      if (variantConfigBuilder_ == null) {
+        return variantConfig_ == null
+            ? com.google.container.v1beta1.LoggingVariantConfig.getDefaultInstance()
+            : variantConfig_;
+      } else {
+        return variantConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+     */
+    public Builder setVariantConfig(com.google.container.v1beta1.LoggingVariantConfig value) {
+      if (variantConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        variantConfig_ = value;
+        onChanged();
+      } else {
+        variantConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+     */
+    public Builder setVariantConfig(
+        com.google.container.v1beta1.LoggingVariantConfig.Builder builderForValue) {
+      if (variantConfigBuilder_ == null) {
+        variantConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        variantConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+     */
+    public Builder mergeVariantConfig(com.google.container.v1beta1.LoggingVariantConfig value) {
+      if (variantConfigBuilder_ == null) {
+        if (variantConfig_ != null) {
+          variantConfig_ =
+              com.google.container.v1beta1.LoggingVariantConfig.newBuilder(variantConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          variantConfig_ = value;
+        }
+        onChanged();
+      } else {
+        variantConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+     */
+    public Builder clearVariantConfig() {
+      if (variantConfigBuilder_ == null) {
+        variantConfig_ = null;
+        onChanged();
+      } else {
+        variantConfig_ = null;
+        variantConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+     */
+    public com.google.container.v1beta1.LoggingVariantConfig.Builder getVariantConfigBuilder() {
+
+      onChanged();
+      return getVariantConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+     */
+    public com.google.container.v1beta1.LoggingVariantConfigOrBuilder getVariantConfigOrBuilder() {
+      if (variantConfigBuilder_ != null) {
+        return variantConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return variantConfig_ == null
+            ? com.google.container.v1beta1.LoggingVariantConfig.getDefaultInstance()
+            : variantConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging variant configuration.
+     * 

+     *
+     * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1beta1.LoggingVariantConfig,
+            com.google.container.v1beta1.LoggingVariantConfig.Builder,
+            com.google.container.v1beta1.LoggingVariantConfigOrBuilder>
+        getVariantConfigFieldBuilder() {
+      if (variantConfigBuilder_ == null) {
+        variantConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.container.v1beta1.LoggingVariantConfig,
+                com.google.container.v1beta1.LoggingVariantConfig.Builder,
+                com.google.container.v1beta1.LoggingVariantConfigOrBuilder>(
+                getVariantConfig(), getParentForChildren(), isClean());
+        variantConfig_ = null;
+      }
+      return variantConfigBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.container.v1beta1.NodePoolLoggingConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.container.v1beta1.NodePoolLoggingConfig)
+  private static final com.google.container.v1beta1.NodePoolLoggingConfig DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.container.v1beta1.NodePoolLoggingConfig();
+  }
+
+  public static com.google.container.v1beta1.NodePoolLoggingConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public NodePoolLoggingConfig parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.container.v1beta1.NodePoolLoggingConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolLoggingConfigOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolLoggingConfigOrBuilder.java
new file mode 100644
index 00000000..86db2a39
--- /dev/null
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolLoggingConfigOrBuilder.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2020 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/container/v1beta1/cluster_service.proto
+
+package com.google.container.v1beta1;
+
+public interface NodePoolLoggingConfigOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.container.v1beta1.NodePoolLoggingConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+   *
+   * @return Whether the variantConfig field is set.
+   */
+  boolean hasVariantConfig();
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+   *
+   * @return The variantConfig.
+   */
+  com.google.container.v1beta1.LoggingVariantConfig getVariantConfig();
+  /**
+   *
+   *
+   * 
+   * Logging variant configuration.
+   * 

+   *
+   * .google.container.v1beta1.LoggingVariantConfig variant_config = 1;
+   */
+  com.google.container.v1beta1.LoggingVariantConfigOrBuilder getVariantConfigOrBuilder();
+}
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolOrBuilder.java
index db1e4cde..b827652c 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodePoolOrBuilder.java
@@ -370,7 +370,7 @@ public interface NodePoolOrBuilder
    * string status_message = 104 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.NodePool.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3452
+   *     google/container/v1beta1/cluster_service.proto;l=3465
    * @return The statusMessage.
    */
   @java.lang.Deprecated
@@ -387,7 +387,7 @@ public interface NodePoolOrBuilder
    * string status_message = 104 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.NodePool.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3452
+   *     google/container/v1beta1/cluster_service.proto;l=3465
    * @return The bytes for statusMessage.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeTaint.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeTaint.java
index 8d9c7b92..a3c501f9 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeTaint.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeTaint.java
@@ -58,66 +58,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeTaint(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              key_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              value_ = s;
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              effect_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodeTaint_descriptor;
@@ -469,7 +409,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (effect_ != com.google.container.v1beta1.NodeTaint.Effect.EFFECT_UNSPECIFIED.getNumber()) {
       output.writeEnum(3, effect_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -487,7 +427,7 @@ public int getSerializedSize() {
     if (effect_ != com.google.container.v1beta1.NodeTaint.Effect.EFFECT_UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, effect_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -505,7 +445,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getKey().equals(other.getKey())) return false;
     if (!getValue().equals(other.getValue())) return false;
     if (effect_ != other.effect_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -522,7 +462,7 @@ public int hashCode() {
     hash = (53 * hash) + getValue().hashCode();
     hash = (37 * hash) + EFFECT_FIELD_NUMBER;
     hash = (53 * hash) + effect_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -655,17 +595,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NodeTaint.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -767,7 +700,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodeTaint other) {
       if (other.effect_ != 0) {
         setEffectValue(other.getEffectValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -782,17 +715,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodeTaint parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                key_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                value_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                effect_ = input.readEnum();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodeTaint) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1131,7 +1096,18 @@ public NodeTaint parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeTaint(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeTaints.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeTaints.java
index b864d0dd..5fb279e9 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeTaints.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NodeTaints.java
@@ -53,60 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NodeTaints(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                taints_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              taints_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeTaint.parser(), extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        taints_ = java.util.Collections.unmodifiableList(taints_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NodeTaints_descriptor;
@@ -208,7 +154,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < taints_.size(); i++) {
       output.writeMessage(1, taints_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -220,7 +166,7 @@ public int getSerializedSize() {
     for (int i = 0; i < taints_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, taints_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -236,7 +182,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1beta1.NodeTaints other = (com.google.container.v1beta1.NodeTaints) obj;
 
     if (!getTaintsList().equals(other.getTaintsList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -251,7 +197,7 @@ public int hashCode() {
       hash = (37 * hash) + TAINTS_FIELD_NUMBER;
       hash = (53 * hash) + getTaintsList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -381,19 +327,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NodeTaints.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getTaintsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -401,10 +338,11 @@ public Builder clear() {
       super.clear();
       if (taintsBuilder_ == null) {
         taints_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        taints_ = null;
         taintsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       return this;
     }
 
@@ -518,7 +456,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NodeTaints other) {
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -533,17 +471,44 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NodeTaints parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1beta1.NodeTaint m =
+                    input.readMessage(
+                        com.google.container.v1beta1.NodeTaint.parser(), extensionRegistry);
+                if (taintsBuilder_ == null) {
+                  ensureTaintsIsMutable();
+                  taints_.add(m);
+                } else {
+                  taintsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NodeTaints) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -929,7 +894,18 @@ public NodeTaints parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NodeTaints(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NotificationConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NotificationConfig.java
index 0f0a6b0c..f94107e1 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NotificationConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/NotificationConfig.java
@@ -50,62 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private NotificationConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.NotificationConfig.PubSub.Builder subBuilder = null;
-              if (pubsub_ != null) {
-                subBuilder = pubsub_.toBuilder();
-              }
-              pubsub_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NotificationConfig.PubSub.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(pubsub_);
-                pubsub_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_NotificationConfig_descriptor;
@@ -421,74 +365,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private PubSub(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                enabled_ = input.readBool();
-                break;
-              }
-            case 18:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                topic_ = s;
-                break;
-              }
-            case 26:
-              {
-                com.google.container.v1beta1.NotificationConfig.Filter.Builder subBuilder = null;
-                if (filter_ != null) {
-                  subBuilder = filter_.toBuilder();
-                }
-                filter_ =
-                    input.readMessage(
-                        com.google.container.v1beta1.NotificationConfig.Filter.parser(),
-                        extensionRegistry);
-                if (subBuilder != null) {
-                  subBuilder.mergeFrom(filter_);
-                  filter_ = subBuilder.buildPartial();
-                }
-
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_NotificationConfig_PubSub_descriptor;
@@ -650,7 +526,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (filter_ != null) {
         output.writeMessage(3, getFilter());
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -668,7 +544,7 @@ public int getSerializedSize() {
       if (filter_ != null) {
         size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getFilter());
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -690,7 +566,7 @@ public boolean equals(final java.lang.Object obj) {
       if (hasFilter()) {
         if (!getFilter().equals(other.getFilter())) return false;
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -709,7 +585,7 @@ public int hashCode() {
         hash = (37 * hash) + FILTER_FIELD_NUMBER;
         hash = (53 * hash) + getFilter().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -841,17 +717,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1beta1.NotificationConfig.PubSub.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -963,7 +832,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NotificationConfig.PubSub
         if (other.hasFilter()) {
           mergeFilter(other.getFilter());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -978,18 +847,49 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.NotificationConfig.PubSub parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  enabled_ = input.readBool();
+
+                  break;
+                } // case 8
+              case 18:
+                {
+                  topic_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 18
+              case 26:
+                {
+                  input.readMessage(getFilterFieldBuilder().getBuilder(), extensionRegistry);
+
+                  break;
+                } // case 26
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.NotificationConfig.PubSub) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1393,7 +1293,19 @@ public PubSub parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new PubSub(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1517,74 +1429,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private Filter(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                int rawValue = input.readEnum();
-                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                  eventType_ = new java.util.ArrayList();
-                  mutable_bitField0_ |= 0x00000001;
-                }
-                eventType_.add(rawValue);
-                break;
-              }
-            case 10:
-              {
-                int length = input.readRawVarint32();
-                int oldLimit = input.pushLimit(length);
-                while (input.getBytesUntilLimit() > 0) {
-                  int rawValue = input.readEnum();
-                  if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                    eventType_ = new java.util.ArrayList();
-                    mutable_bitField0_ |= 0x00000001;
-                  }
-                  eventType_.add(rawValue);
-                }
-                input.popLimit(oldLimit);
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        if (((mutable_bitField0_ & 0x00000001) != 0)) {
-          eventType_ = java.util.Collections.unmodifiableList(eventType_);
-        }
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_NotificationConfig_Filter_descriptor;
@@ -1722,7 +1566,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       for (int i = 0; i < eventType_.size(); i++) {
         output.writeEnumNoTag(eventType_.get(i));
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -1743,7 +1587,7 @@ public int getSerializedSize() {
         }
         eventTypeMemoizedSerializedSize = dataSize;
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -1760,7 +1604,7 @@ public boolean equals(final java.lang.Object obj) {
           (com.google.container.v1beta1.NotificationConfig.Filter) obj;
 
       if (!eventType_.equals(other.eventType_)) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -1775,7 +1619,7 @@ public int hashCode() {
         hash = (37 * hash) + EVENT_TYPE_FIELD_NUMBER;
         hash = (53 * hash) + eventType_.hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -1910,17 +1754,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1beta1.NotificationConfig.Filter.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -2023,7 +1860,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NotificationConfig.Filter
           }
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -2038,18 +1875,50 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.NotificationConfig.Filter parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  int tmpRaw = input.readEnum();
+                  ensureEventTypeIsMutable();
+                  eventType_.add(tmpRaw);
+                  break;
+                } // case 8
+              case 10:
+                {
+                  int length = input.readRawVarint32();
+                  int oldLimit = input.pushLimit(length);
+                  while (input.getBytesUntilLimit() > 0) {
+                    int tmpRaw = input.readEnum();
+                    ensureEventTypeIsMutable();
+                    eventType_.add(tmpRaw);
+                  }
+                  input.popLimit(oldLimit);
+                  break;
+                } // case 10
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.NotificationConfig.Filter) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -2324,7 +2193,19 @@ public Filter parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new Filter(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -2408,7 +2289,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (pubsub_ != null) {
       output.writeMessage(1, getPubsub());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -2420,7 +2301,7 @@ public int getSerializedSize() {
     if (pubsub_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getPubsub());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -2440,7 +2321,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasPubsub()) {
       if (!getPubsub().equals(other.getPubsub())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -2455,7 +2336,7 @@ public int hashCode() {
       hash = (37 * hash) + PUBSUB_FIELD_NUMBER;
       hash = (53 * hash) + getPubsub().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -2584,17 +2465,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.NotificationConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -2691,7 +2565,7 @@ public Builder mergeFrom(com.google.container.v1beta1.NotificationConfig other)
       if (other.hasPubsub()) {
         mergePubsub(other.getPubsub());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -2706,17 +2580,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.NotificationConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getPubsubFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.NotificationConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2938,7 +2832,18 @@ public NotificationConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new NotificationConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Operation.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Operation.java
index 81ed22a2..7039575e 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Operation.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/Operation.java
@@ -65,183 +65,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private Operation(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              operationType_ = rawValue;
-              break;
-            }
-          case 32:
-            {
-              int rawValue = input.readEnum();
-
-              status_ = rawValue;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              statusMessage_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              selfLink_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              targetLink_ = s;
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              detail_ = s;
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              location_ = s;
-              break;
-            }
-          case 82:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              startTime_ = s;
-              break;
-            }
-          case 90:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              endTime_ = s;
-              break;
-            }
-          case 98:
-            {
-              com.google.container.v1beta1.OperationProgress.Builder subBuilder = null;
-              if (progress_ != null) {
-                subBuilder = progress_.toBuilder();
-              }
-              progress_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.OperationProgress.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(progress_);
-                progress_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 106:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                clusterConditions_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              clusterConditions_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.StatusCondition.parser(), extensionRegistry));
-              break;
-            }
-          case 114:
-            {
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                nodepoolConditions_ =
-                    new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              nodepoolConditions_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.StatusCondition.parser(), extensionRegistry));
-              break;
-            }
-          case 122:
-            {
-              com.google.rpc.Status.Builder subBuilder = null;
-              if (error_ != null) {
-                subBuilder = error_.toBuilder();
-              }
-              error_ = input.readMessage(com.google.rpc.Status.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(error_);
-                error_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        clusterConditions_ = java.util.Collections.unmodifiableList(clusterConditions_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        nodepoolConditions_ = java.util.Collections.unmodifiableList(nodepoolConditions_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_Operation_descriptor;
@@ -986,7 +809,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Operation.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2208
+   *     google/container/v1beta1/cluster_service.proto;l=2218
    * @return The zone.
    */
   @java.lang.Override
@@ -1014,7 +837,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Operation.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2208
+   *     google/container/v1beta1/cluster_service.proto;l=2218
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -1167,7 +990,7 @@ public com.google.protobuf.ByteString getDetailBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.Operation.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2221
+   *     google/container/v1beta1/cluster_service.proto;l=2231
    * @return The statusMessage.
    */
   @java.lang.Override
@@ -1196,7 +1019,7 @@ public java.lang.String getStatusMessage() {
    * 
    *
    * @deprecated google.container.v1beta1.Operation.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2221
+   *     google/container/v1beta1/cluster_service.proto;l=2231
    * @return The bytes for statusMessage.
    */
   @java.lang.Override
@@ -1810,7 +1633,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (error_ != null) {
       output.writeMessage(15, getError());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1867,7 +1690,7 @@ public int getSerializedSize() {
     if (error_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(15, getError());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1903,7 +1726,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasError()) {
       if (!getError().equals(other.getError())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1952,7 +1775,7 @@ public int hashCode() {
       hash = (37 * hash) + ERROR_FIELD_NUMBER;
       hash = (53 * hash) + getError().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -2082,20 +1905,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.Operation.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getClusterConditionsFieldBuilder();
-        getNodepoolConditionsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -2131,16 +1944,18 @@ public Builder clear() {
       }
       if (clusterConditionsBuilder_ == null) {
         clusterConditions_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        clusterConditions_ = null;
         clusterConditionsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       if (nodepoolConditionsBuilder_ == null) {
         nodepoolConditions_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000002);
       } else {
+        nodepoolConditions_ = null;
         nodepoolConditionsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000002);
       if (errorBuilder_ == null) {
         error_ = null;
       } else {
@@ -2365,7 +2180,7 @@ public Builder mergeFrom(com.google.container.v1beta1.Operation other) {
       if (other.hasError()) {
         mergeError(other.getError());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -2380,17 +2195,135 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.Operation parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                operationType_ = input.readEnum();
+
+                break;
+              } // case 24
+            case 32:
+              {
+                status_ = input.readEnum();
+
+                break;
+              } // case 32
+            case 42:
+              {
+                statusMessage_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                selfLink_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 58:
+              {
+                targetLink_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                detail_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 74:
+              {
+                location_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 82:
+              {
+                startTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 82
+            case 90:
+              {
+                endTime_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 90
+            case 98:
+              {
+                input.readMessage(getProgressFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 98
+            case 106:
+              {
+                com.google.container.v1beta1.StatusCondition m =
+                    input.readMessage(
+                        com.google.container.v1beta1.StatusCondition.parser(), extensionRegistry);
+                if (clusterConditionsBuilder_ == null) {
+                  ensureClusterConditionsIsMutable();
+                  clusterConditions_.add(m);
+                } else {
+                  clusterConditionsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 106
+            case 114:
+              {
+                com.google.container.v1beta1.StatusCondition m =
+                    input.readMessage(
+                        com.google.container.v1beta1.StatusCondition.parser(), extensionRegistry);
+                if (nodepoolConditionsBuilder_ == null) {
+                  ensureNodepoolConditionsIsMutable();
+                  nodepoolConditions_.add(m);
+                } else {
+                  nodepoolConditionsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 114
+            case 122:
+              {
+                input.readMessage(getErrorFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 122
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.Operation) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2515,7 +2448,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Operation.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2208
+     *     google/container/v1beta1/cluster_service.proto;l=2218
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -2542,7 +2475,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Operation.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2208
+     *     google/container/v1beta1/cluster_service.proto;l=2218
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -2569,7 +2502,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Operation.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2208
+     *     google/container/v1beta1/cluster_service.proto;l=2218
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -2595,7 +2528,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Operation.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2208
+     *     google/container/v1beta1/cluster_service.proto;l=2218
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2617,7 +2550,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.Operation.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2208
+     *     google/container/v1beta1/cluster_service.proto;l=2218
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -2935,7 +2868,7 @@ public Builder setDetailBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.Operation.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2221
+     *     google/container/v1beta1/cluster_service.proto;l=2231
      * @return The statusMessage.
      */
     @java.lang.Deprecated
@@ -2963,7 +2896,7 @@ public java.lang.String getStatusMessage() {
      * 
      *
      * @deprecated google.container.v1beta1.Operation.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2221
+     *     google/container/v1beta1/cluster_service.proto;l=2231
      * @return The bytes for statusMessage.
      */
     @java.lang.Deprecated
@@ -2991,7 +2924,7 @@ public com.google.protobuf.ByteString getStatusMessageBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.Operation.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2221
+     *     google/container/v1beta1/cluster_service.proto;l=2231
      * @param value The statusMessage to set.
      * @return This builder for chaining.
      */
@@ -3018,7 +2951,7 @@ public Builder setStatusMessage(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.Operation.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2221
+     *     google/container/v1beta1/cluster_service.proto;l=2231
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -3041,7 +2974,7 @@ public Builder clearStatusMessage() {
      * 
      *
      * @deprecated google.container.v1beta1.Operation.status_message is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2221
+     *     google/container/v1beta1/cluster_service.proto;l=2231
      * @param value The bytes for statusMessage to set.
      * @return This builder for chaining.
      */
@@ -4891,7 +4824,18 @@ public Operation parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new Operation(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/OperationOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/OperationOrBuilder.java
index 9217b35b..9465e9c4 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/OperationOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/OperationOrBuilder.java
@@ -60,7 +60,7 @@ public interface OperationOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Operation.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2208
+   *     google/container/v1beta1/cluster_service.proto;l=2218
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -77,7 +77,7 @@ public interface OperationOrBuilder
    * string zone = 2 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.Operation.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2208
+   *     google/container/v1beta1/cluster_service.proto;l=2218
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -171,7 +171,7 @@ public interface OperationOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.Operation.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2221
+   *     google/container/v1beta1/cluster_service.proto;l=2231
    * @return The statusMessage.
    */
   @java.lang.Deprecated
@@ -189,7 +189,7 @@ public interface OperationOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.Operation.status_message is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2221
+   *     google/container/v1beta1/cluster_service.proto;l=2231
    * @return The bytes for statusMessage.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/OperationProgress.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/OperationProgress.java
index 39c37376..87d0dff2 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/OperationProgress.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/OperationProgress.java
@@ -55,91 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private OperationProgress(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              status_ = rawValue;
-              break;
-            }
-          case 26:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                metrics_ =
-                    new java.util.ArrayList<
-                        com.google.container.v1beta1.OperationProgress.Metric>();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              metrics_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.OperationProgress.Metric.parser(),
-                      extensionRegistry));
-              break;
-            }
-          case 34:
-            {
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                stages_ = new java.util.ArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              stages_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.OperationProgress.parser(), extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        metrics_ = java.util.Collections.unmodifiableList(metrics_);
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        stages_ = java.util.Collections.unmodifiableList(stages_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_OperationProgress_descriptor;
@@ -308,71 +223,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private Metric(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                name_ = s;
-                break;
-              }
-            case 16:
-              {
-                value_ = input.readInt64();
-                valueCase_ = 2;
-                break;
-              }
-            case 25:
-              {
-                value_ = input.readDouble();
-                valueCase_ = 3;
-                break;
-              }
-            case 34:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-                valueCase_ = 4;
-                value_ = s;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_OperationProgress_Metric_descriptor;
@@ -653,7 +503,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (valueCase_ == 4) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 4, value_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -678,7 +528,7 @@ public int getSerializedSize() {
       if (valueCase_ == 4) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, value_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -710,7 +560,7 @@ public boolean equals(final java.lang.Object obj) {
         case 0:
         default:
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -742,7 +592,7 @@ public int hashCode() {
         case 0:
         default:
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -874,17 +724,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1beta1.OperationProgress.Metric.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -1011,7 +854,7 @@ public Builder mergeFrom(com.google.container.v1beta1.OperationProgress.Metric o
               break;
             }
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -1026,18 +869,56 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.OperationProgress.Metric parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  name_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 10
+              case 16:
+                {
+                  value_ = input.readInt64();
+                  valueCase_ = 2;
+                  break;
+                } // case 16
+              case 25:
+                {
+                  value_ = input.readDouble();
+                  valueCase_ = 3;
+                  break;
+                } // case 25
+              case 34:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+                  valueCase_ = 4;
+                  value_ = s;
+                  break;
+                } // case 34
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.OperationProgress.Metric) e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1466,7 +1347,19 @@ public Metric parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new Metric(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1764,7 +1657,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < stages_.size(); i++) {
       output.writeMessage(4, stages_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1785,7 +1678,7 @@ public int getSerializedSize() {
     for (int i = 0; i < stages_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, stages_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1805,7 +1698,7 @@ public boolean equals(final java.lang.Object obj) {
     if (status_ != other.status_) return false;
     if (!getMetricsList().equals(other.getMetricsList())) return false;
     if (!getStagesList().equals(other.getStagesList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1828,7 +1721,7 @@ public int hashCode() {
       hash = (37 * hash) + STAGES_FIELD_NUMBER;
       hash = (53 * hash) + getStagesList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1957,20 +1850,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.OperationProgress.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getMetricsFieldBuilder();
-        getStagesFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -1982,16 +1865,18 @@ public Builder clear() {
 
       if (metricsBuilder_ == null) {
         metrics_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        metrics_ = null;
         metricsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       if (stagesBuilder_ == null) {
         stages_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000002);
       } else {
+        stages_ = null;
         stagesBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000002);
       return this;
     }
 
@@ -2150,7 +2035,7 @@ public Builder mergeFrom(com.google.container.v1beta1.OperationProgress other) {
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -2165,17 +2050,70 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.OperationProgress parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                status_ = input.readEnum();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                com.google.container.v1beta1.OperationProgress.Metric m =
+                    input.readMessage(
+                        com.google.container.v1beta1.OperationProgress.Metric.parser(),
+                        extensionRegistry);
+                if (metricsBuilder_ == null) {
+                  ensureMetricsIsMutable();
+                  metrics_.add(m);
+                } else {
+                  metricsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 26
+            case 34:
+              {
+                com.google.container.v1beta1.OperationProgress m =
+                    input.readMessage(
+                        com.google.container.v1beta1.OperationProgress.parser(), extensionRegistry);
+                if (stagesBuilder_ == null) {
+                  ensureStagesIsMutable();
+                  stages_.add(m);
+                } else {
+                  stagesBuilder_.addMessage(m);
+                }
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.OperationProgress) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -3219,7 +3157,18 @@ public OperationProgress parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new OperationProgress(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PodSecurityPolicyConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PodSecurityPolicyConfig.java
index 410d235f..61cedb6b 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PodSecurityPolicyConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PodSecurityPolicyConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private PodSecurityPolicyConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_PodSecurityPolicyConfig_descriptor;
@@ -145,7 +101,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -157,7 +113,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -174,7 +130,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.PodSecurityPolicyConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -187,7 +143,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -316,17 +272,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.PodSecurityPolicyConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1beta1.PodSecurityPolicyConfig ot
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,18 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.PodSecurityPolicyConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.PodSecurityPolicyConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -532,7 +500,18 @@ public PodSecurityPolicyConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new PodSecurityPolicyConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PrivateClusterConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PrivateClusterConfig.java
index 0cbb9773..bd27aa45 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PrivateClusterConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PrivateClusterConfig.java
@@ -55,101 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private PrivateClusterConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enablePrivateNodes_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              enablePrivateEndpoint_ = input.readBool();
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              masterIpv4CidrBlock_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              privateEndpoint_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              publicEndpoint_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              peeringName_ = s;
-              break;
-            }
-          case 66:
-            {
-              com.google.container.v1beta1.PrivateClusterMasterGlobalAccessConfig.Builder
-                  subBuilder = null;
-              if (masterGlobalAccessConfig_ != null) {
-                subBuilder = masterGlobalAccessConfig_.toBuilder();
-              }
-              masterGlobalAccessConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.PrivateClusterMasterGlobalAccessConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(masterGlobalAccessConfig_);
-                masterGlobalAccessConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_PrivateClusterConfig_descriptor;
@@ -497,7 +402,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (masterGlobalAccessConfig_ != null) {
       output.writeMessage(8, getMasterGlobalAccessConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -529,7 +434,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               8, getMasterGlobalAccessConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -555,7 +460,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasMasterGlobalAccessConfig()) {
       if (!getMasterGlobalAccessConfig().equals(other.getMasterGlobalAccessConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -582,7 +487,7 @@ public int hashCode() {
       hash = (37 * hash) + MASTER_GLOBAL_ACCESS_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getMasterGlobalAccessConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -711,17 +616,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.PrivateClusterConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -858,7 +756,7 @@ public Builder mergeFrom(com.google.container.v1beta1.PrivateClusterConfig other
       if (other.hasMasterGlobalAccessConfig()) {
         mergeMasterGlobalAccessConfig(other.getMasterGlobalAccessConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -873,18 +771,74 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.PrivateClusterConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enablePrivateNodes_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                enablePrivateEndpoint_ = input.readBool();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                masterIpv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                privateEndpoint_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                publicEndpoint_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 58:
+              {
+                peeringName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            case 66:
+              {
+                input.readMessage(
+                    getMasterGlobalAccessConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 66
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.PrivateClusterConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1683,7 +1637,18 @@ public PrivateClusterConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new PrivateClusterConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PrivateClusterMasterGlobalAccessConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PrivateClusterMasterGlobalAccessConfig.java
index 6e5dede2..3fd0fbad 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PrivateClusterMasterGlobalAccessConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/PrivateClusterMasterGlobalAccessConfig.java
@@ -52,50 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private PrivateClusterMasterGlobalAccessConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_PrivateClusterMasterGlobalAccessConfig_descriptor;
@@ -146,7 +102,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -158,7 +114,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -175,7 +131,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.PrivateClusterMasterGlobalAccessConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -188,7 +144,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -320,17 +276,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
     // Construct using
     // com.google.container.v1beta1.PrivateClusterMasterGlobalAccessConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -424,7 +373,7 @@ public Builder mergeFrom(
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -439,19 +388,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.PrivateClusterMasterGlobalAccessConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.PrivateClusterMasterGlobalAccessConfig)
-                e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -541,7 +508,18 @@ public PrivateClusterMasterGlobalAccessConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new PrivateClusterMasterGlobalAccessConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ProtectConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ProtectConfig.java
index 0db6e173..df8dfce6 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ProtectConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ProtectConfig.java
@@ -51,62 +51,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ProtectConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.WorkloadConfig.Builder subBuilder = null;
-              if (((bitField0_ & 0x00000001) != 0)) {
-                subBuilder = workloadConfig_.toBuilder();
-              }
-              workloadConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.WorkloadConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(workloadConfig_);
-                workloadConfig_ = subBuilder.buildPartial();
-              }
-              bitField0_ |= 0x00000001;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ProtectConfig_descriptor;
@@ -193,7 +137,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeMessage(1, getWorkloadConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -205,7 +149,7 @@ public int getSerializedSize() {
     if (((bitField0_ & 0x00000001) != 0)) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getWorkloadConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -225,7 +169,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasWorkloadConfig()) {
       if (!getWorkloadConfig().equals(other.getWorkloadConfig())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -240,7 +184,7 @@ public int hashCode() {
       hash = (37 * hash) + WORKLOAD_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getWorkloadConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -484,7 +428,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ProtectConfig other) {
       if (other.hasWorkloadConfig()) {
         mergeWorkloadConfig(other.getWorkloadConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -499,17 +443,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ProtectConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getWorkloadConfigFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ProtectConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -744,7 +708,18 @@ public ProtectConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ProtectConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RecurringTimeWindow.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RecurringTimeWindow.java
index f14fdd83..688cf2ad 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RecurringTimeWindow.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RecurringTimeWindow.java
@@ -52,68 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private RecurringTimeWindow(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.TimeWindow.Builder subBuilder = null;
-              if (window_ != null) {
-                subBuilder = window_.toBuilder();
-              }
-              window_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.TimeWindow.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(window_);
-                window_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              recurrence_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_RecurringTimeWindow_descriptor;
@@ -294,7 +232,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(recurrence_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 2, recurrence_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -309,7 +247,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(recurrence_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, recurrence_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -330,7 +268,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getWindow().equals(other.getWindow())) return false;
     }
     if (!getRecurrence().equals(other.getRecurrence())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -347,7 +285,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + RECURRENCE_FIELD_NUMBER;
     hash = (53 * hash) + getRecurrence().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -476,17 +414,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.RecurringTimeWindow.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -590,7 +521,7 @@ public Builder mergeFrom(com.google.container.v1beta1.RecurringTimeWindow other)
         recurrence_ = other.recurrence_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -605,17 +536,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.RecurringTimeWindow parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getWindowFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 18:
+              {
+                recurrence_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.RecurringTimeWindow) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1067,7 +1024,18 @@ public RecurringTimeWindow parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new RecurringTimeWindow(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReleaseChannel.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReleaseChannel.java
index ec2e9014..6f5ae866 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReleaseChannel.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReleaseChannel.java
@@ -56,52 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ReleaseChannel(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              channel_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ReleaseChannel_descriptor;
@@ -365,7 +319,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (channel_ != com.google.container.v1beta1.ReleaseChannel.Channel.UNSPECIFIED.getNumber()) {
       output.writeEnum(1, channel_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -377,7 +331,7 @@ public int getSerializedSize() {
     if (channel_ != com.google.container.v1beta1.ReleaseChannel.Channel.UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, channel_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -394,7 +348,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.ReleaseChannel) obj;
 
     if (channel_ != other.channel_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -407,7 +361,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + CHANNEL_FIELD_NUMBER;
     hash = (53 * hash) + channel_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -540,17 +494,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ReleaseChannel.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -638,7 +585,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ReleaseChannel other) {
       if (other.channel_ != 0) {
         setChannelValue(other.getChannelValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -653,17 +600,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ReleaseChannel parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                channel_ = input.readEnum();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ReleaseChannel) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -792,7 +759,18 @@ public ReleaseChannel parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ReleaseChannel(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReservationAffinity.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReservationAffinity.java
index 2a40ccc5..db62e35d 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReservationAffinity.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReservationAffinity.java
@@ -56,73 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ReservationAffinity(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              consumeReservationType_ = rawValue;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              key_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                values_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              values_.add(s);
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        values_ = values_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ReservationAffinity_descriptor;
@@ -364,8 +297,9 @@ public com.google.container.v1beta1.ReservationAffinity.Type getConsumeReservati
    *
    * 
    * Corresponds to the label key of a reservation resource. To target a
-   * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-   * the key and specify the name of your reservation as its value.
+   * SPECIFIC_RESERVATION by name, specify
+   * "compute.googleapis.com/reservation-name" as the key and specify the name
+   * of your reservation as its value.
    * 

    *
    * string key = 2;
@@ -389,8 +323,9 @@ public java.lang.String getKey() {
    *
    * 
    * Corresponds to the label key of a reservation resource. To target a
-   * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-   * the key and specify the name of your reservation as its value.
+   * SPECIFIC_RESERVATION by name, specify
+   * "compute.googleapis.com/reservation-name" as the key and specify the name
+   * of your reservation as its value.
    * 

    *
    * string key = 2;
@@ -495,7 +430,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < values_.size(); i++) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, values_.getRaw(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -519,7 +454,7 @@ public int getSerializedSize() {
       size += dataSize;
       size += 1 * getValuesList().size();
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -538,7 +473,7 @@ public boolean equals(final java.lang.Object obj) {
     if (consumeReservationType_ != other.consumeReservationType_) return false;
     if (!getKey().equals(other.getKey())) return false;
     if (!getValuesList().equals(other.getValuesList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -557,7 +492,7 @@ public int hashCode() {
       hash = (37 * hash) + VALUES_FIELD_NUMBER;
       hash = (53 * hash) + getValuesList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -688,17 +623,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ReservationAffinity.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -812,7 +740,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ReservationAffinity other)
         }
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -827,17 +755,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ReservationAffinity parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                consumeReservationType_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                key_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureValuesIsMutable();
+                values_.add(s);
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ReservationAffinity) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -943,8 +904,9 @@ public Builder clearConsumeReservationType() {
      *
      * 
      * Corresponds to the label key of a reservation resource. To target a
-     * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-     * the key and specify the name of your reservation as its value.
+     * SPECIFIC_RESERVATION by name, specify
+     * "compute.googleapis.com/reservation-name" as the key and specify the name
+     * of your reservation as its value.
      * 

      *
      * string key = 2;
@@ -967,8 +929,9 @@ public java.lang.String getKey() {
      *
      * 
      * Corresponds to the label key of a reservation resource. To target a
-     * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-     * the key and specify the name of your reservation as its value.
+     * SPECIFIC_RESERVATION by name, specify
+     * "compute.googleapis.com/reservation-name" as the key and specify the name
+     * of your reservation as its value.
      * 

      *
      * string key = 2;
@@ -991,8 +954,9 @@ public com.google.protobuf.ByteString getKeyBytes() {
      *
      * 
      * Corresponds to the label key of a reservation resource. To target a
-     * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-     * the key and specify the name of your reservation as its value.
+     * SPECIFIC_RESERVATION by name, specify
+     * "compute.googleapis.com/reservation-name" as the key and specify the name
+     * of your reservation as its value.
      * 

      *
      * string key = 2;
@@ -1014,8 +978,9 @@ public Builder setKey(java.lang.String value) {
      *
      * 
      * Corresponds to the label key of a reservation resource. To target a
-     * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-     * the key and specify the name of your reservation as its value.
+     * SPECIFIC_RESERVATION by name, specify
+     * "compute.googleapis.com/reservation-name" as the key and specify the name
+     * of your reservation as its value.
      * 

      *
      * string key = 2;
@@ -1033,8 +998,9 @@ public Builder clearKey() {
      *
      * 
      * Corresponds to the label key of a reservation resource. To target a
-     * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-     * the key and specify the name of your reservation as its value.
+     * SPECIFIC_RESERVATION by name, specify
+     * "compute.googleapis.com/reservation-name" as the key and specify the name
+     * of your reservation as its value.
      * 

      *
      * string key = 2;
@@ -1253,7 +1219,18 @@ public ReservationAffinity parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ReservationAffinity(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReservationAffinityOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReservationAffinityOrBuilder.java
index 1ba1e4a4..fb758d4f 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReservationAffinityOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ReservationAffinityOrBuilder.java
@@ -53,8 +53,9 @@ public interface ReservationAffinityOrBuilder
    *
    * 
    * Corresponds to the label key of a reservation resource. To target a
-   * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-   * the key and specify the name of your reservation as its value.
+   * SPECIFIC_RESERVATION by name, specify
+   * "compute.googleapis.com/reservation-name" as the key and specify the name
+   * of your reservation as its value.
    * 

    *
    * string key = 2;
@@ -67,8 +68,9 @@ public interface ReservationAffinityOrBuilder
    *
    * 
    * Corresponds to the label key of a reservation resource. To target a
-   * SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-   * the key and specify the name of your reservation as its value.
+   * SPECIFIC_RESERVATION by name, specify
+   * "compute.googleapis.com/reservation-name" as the key and specify the name
+   * of your reservation as its value.
    * 

    *
    * string key = 2;
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ResourceLimit.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ResourceLimit.java
index 6fd91619..440f718c 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ResourceLimit.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ResourceLimit.java
@@ -53,62 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ResourceLimit(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              resourceType_ = s;
-              break;
-            }
-          case 16:
-            {
-              minimum_ = input.readInt64();
-              break;
-            }
-          case 24:
-            {
-              maximum_ = input.readInt64();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ResourceLimit_descriptor;
@@ -232,7 +176,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (maximum_ != 0L) {
       output.writeInt64(3, maximum_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -250,7 +194,7 @@ public int getSerializedSize() {
     if (maximum_ != 0L) {
       size += com.google.protobuf.CodedOutputStream.computeInt64Size(3, maximum_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -269,7 +213,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getResourceType().equals(other.getResourceType())) return false;
     if (getMinimum() != other.getMinimum()) return false;
     if (getMaximum() != other.getMaximum()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -286,7 +230,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getMinimum());
     hash = (37 * hash) + MAXIMUM_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getMaximum());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -416,17 +360,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ResourceLimit.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -527,7 +464,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ResourceLimit other) {
       if (other.getMaximum() != 0L) {
         setMaximum(other.getMaximum());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -542,17 +479,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ResourceLimit parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                resourceType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                minimum_ = input.readInt64();
+
+                break;
+              } // case 16
+            case 24:
+              {
+                maximum_ = input.readInt64();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ResourceLimit) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -798,7 +767,18 @@ public ResourceLimit parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ResourceLimit(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ResourceUsageExportConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ResourceUsageExportConfig.java
index 448ff7c4..8722d3b3 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ResourceUsageExportConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ResourceUsageExportConfig.java
@@ -50,89 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ResourceUsageExportConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.container.v1beta1.ResourceUsageExportConfig.BigQueryDestination.Builder
-                  subBuilder = null;
-              if (bigqueryDestination_ != null) {
-                subBuilder = bigqueryDestination_.toBuilder();
-              }
-              bigqueryDestination_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ResourceUsageExportConfig.BigQueryDestination
-                          .parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(bigqueryDestination_);
-                bigqueryDestination_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 16:
-            {
-              enableNetworkEgressMetering_ = input.readBool();
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1beta1.ResourceUsageExportConfig.ConsumptionMeteringConfig
-                      .Builder
-                  subBuilder = null;
-              if (consumptionMeteringConfig_ != null) {
-                subBuilder = consumptionMeteringConfig_.toBuilder();
-              }
-              consumptionMeteringConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ResourceUsageExportConfig
-                          .ConsumptionMeteringConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(consumptionMeteringConfig_);
-                consumptionMeteringConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ResourceUsageExportConfig_descriptor;
@@ -212,52 +129,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private BigQueryDestination(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                datasetId_ = s;
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_ResourceUsageExportConfig_BigQueryDestination_descriptor;
@@ -340,7 +211,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(datasetId_)) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 1, datasetId_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -352,7 +223,7 @@ public int getSerializedSize() {
       if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(datasetId_)) {
         size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, datasetId_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -370,7 +241,7 @@ public boolean equals(final java.lang.Object obj) {
           (com.google.container.v1beta1.ResourceUsageExportConfig.BigQueryDestination) obj;
 
       if (!getDatasetId().equals(other.getDatasetId())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -383,7 +254,7 @@ public int hashCode() {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + DATASET_ID_FIELD_NUMBER;
       hash = (53 * hash) + getDatasetId().hashCode();
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -523,17 +394,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
       // Construct using
       // com.google.container.v1beta1.ResourceUsageExportConfig.BigQueryDestination.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -633,7 +497,7 @@ public Builder mergeFrom(
           datasetId_ = other.datasetId_;
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -648,20 +512,37 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.ResourceUsageExportConfig.BigQueryDestination parsedMessage =
-            null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  datasetId_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 10
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.ResourceUsageExportConfig.BigQueryDestination)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -807,7 +688,19 @@ public BigQueryDestination parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new BigQueryDestination(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -880,50 +773,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private ConsumptionMeteringConfig(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                enabled_ = input.readBool();
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_ResourceUsageExportConfig_ConsumptionMeteringConfig_descriptor;
@@ -978,7 +827,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (enabled_ != false) {
         output.writeBool(1, enabled_);
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -990,7 +839,7 @@ public int getSerializedSize() {
       if (enabled_ != false) {
         size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -1009,7 +858,7 @@ public boolean equals(final java.lang.Object obj) {
           (com.google.container.v1beta1.ResourceUsageExportConfig.ConsumptionMeteringConfig) obj;
 
       if (getEnabled() != other.getEnabled()) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -1022,7 +871,7 @@ public int hashCode() {
       hash = (19 * hash) + getDescriptor().hashCode();
       hash = (37 * hash) + ENABLED_FIELD_NUMBER;
       hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -1165,17 +1014,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
       // Construct using
       // com.google.container.v1beta1.ResourceUsageExportConfig.ConsumptionMeteringConfig.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -1278,7 +1120,7 @@ public Builder mergeFrom(
         if (other.getEnabled() != false) {
           setEnabled(other.getEnabled());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -1293,20 +1135,37 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.ResourceUsageExportConfig.ConsumptionMeteringConfig
-            parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  enabled_ = input.readBool();
+
+                  break;
+                } // case 8
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.ResourceUsageExportConfig.ConsumptionMeteringConfig)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1405,7 +1264,19 @@ public ConsumptionMeteringConfig parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new ConsumptionMeteringConfig(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1583,7 +1454,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (consumptionMeteringConfig_ != null) {
       output.writeMessage(3, getConsumptionMeteringConfig());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1604,7 +1475,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               3, getConsumptionMeteringConfig());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1630,7 +1501,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getConsumptionMeteringConfig().equals(other.getConsumptionMeteringConfig()))
         return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1651,7 +1522,7 @@ public int hashCode() {
       hash = (37 * hash) + CONSUMPTION_METERING_CONFIG_FIELD_NUMBER;
       hash = (53 * hash) + getConsumptionMeteringConfig().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1781,17 +1652,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ResourceUsageExportConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1908,7 +1772,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ResourceUsageExportConfig
       if (other.hasConsumptionMeteringConfig()) {
         mergeConsumptionMeteringConfig(other.getConsumptionMeteringConfig());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1923,18 +1787,51 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ResourceUsageExportConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getBigqueryDestinationFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 16:
+              {
+                enableNetworkEgressMetering_ = input.readBool();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                input.readMessage(
+                    getConsumptionMeteringConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ResourceUsageExportConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2460,7 +2357,18 @@ public ResourceUsageExportConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ResourceUsageExportConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RollbackNodePoolUpgradeRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RollbackNodePoolUpgradeRequest.java
index b9e66fac..ab5b37f5 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RollbackNodePoolUpgradeRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RollbackNodePoolUpgradeRequest.java
@@ -59,85 +59,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private RollbackNodePoolUpgradeRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 56:
-            {
-              respectPdb_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_RollbackNodePoolUpgradeRequest_descriptor;
@@ -168,7 +89,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.project_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3732
+   *     See google/container/v1beta1/cluster_service.proto;l=3745
    * @return The projectId.
    */
   @java.lang.Override
@@ -197,7 +118,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.project_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3732
+   *     See google/container/v1beta1/cluster_service.proto;l=3745
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -229,7 +150,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3741
+   *     google/container/v1beta1/cluster_service.proto;l=3754
    * @return The zone.
    */
   @java.lang.Override
@@ -258,7 +179,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3741
+   *     google/container/v1beta1/cluster_service.proto;l=3754
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -289,7 +210,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3748
+   *     See google/container/v1beta1/cluster_service.proto;l=3761
    * @return The clusterId.
    */
   @java.lang.Override
@@ -317,7 +238,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3748
+   *     See google/container/v1beta1/cluster_service.proto;l=3761
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -348,7 +269,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3755
+   *     See google/container/v1beta1/cluster_service.proto;l=3768
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -376,7 +297,7 @@ public java.lang.String getNodePoolId() {
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3755
+   *     See google/container/v1beta1/cluster_service.proto;l=3768
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -497,7 +418,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (respectPdb_ != false) {
       output.writeBool(7, respectPdb_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -524,7 +445,7 @@ public int getSerializedSize() {
     if (respectPdb_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(7, respectPdb_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -546,7 +467,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getNodePoolId().equals(other.getNodePoolId())) return false;
     if (!getName().equals(other.getName())) return false;
     if (getRespectPdb() != other.getRespectPdb()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -569,7 +490,7 @@ public int hashCode() {
     hash = (53 * hash) + getName().hashCode();
     hash = (37 * hash) + RESPECT_PDB_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getRespectPdb());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -701,17 +622,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.RollbackNodePoolUpgradeRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -835,7 +749,7 @@ public Builder mergeFrom(com.google.container.v1beta1.RollbackNodePoolUpgradeReq
       if (other.getRespectPdb() != false) {
         setRespectPdb(other.getRespectPdb());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -850,18 +764,67 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.RollbackNodePoolUpgradeRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 56:
+              {
+                respectPdb_ = input.readBool();
+
+                break;
+              } // case 56
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.RollbackNodePoolUpgradeRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -879,7 +842,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3732
+     *     See google/container/v1beta1/cluster_service.proto;l=3745
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -907,7 +870,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3732
+     *     See google/container/v1beta1/cluster_service.proto;l=3745
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -935,7 +898,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3732
+     *     See google/container/v1beta1/cluster_service.proto;l=3745
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -962,7 +925,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3732
+     *     See google/container/v1beta1/cluster_service.proto;l=3745
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -985,7 +948,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3732
+     *     See google/container/v1beta1/cluster_service.proto;l=3745
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1015,7 +978,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3741
+     *     google/container/v1beta1/cluster_service.proto;l=3754
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1043,7 +1006,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3741
+     *     google/container/v1beta1/cluster_service.proto;l=3754
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1071,7 +1034,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3741
+     *     google/container/v1beta1/cluster_service.proto;l=3754
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1098,7 +1061,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3741
+     *     google/container/v1beta1/cluster_service.proto;l=3754
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1121,7 +1084,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3741
+     *     google/container/v1beta1/cluster_service.proto;l=3754
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1150,7 +1113,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3748
+     *     See google/container/v1beta1/cluster_service.proto;l=3761
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1177,7 +1140,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3748
+     *     See google/container/v1beta1/cluster_service.proto;l=3761
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1204,7 +1167,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3748
+     *     See google/container/v1beta1/cluster_service.proto;l=3761
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1230,7 +1193,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3748
+     *     See google/container/v1beta1/cluster_service.proto;l=3761
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1252,7 +1215,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3748
+     *     See google/container/v1beta1/cluster_service.proto;l=3761
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1281,7 +1244,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.node_pool_id is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3755
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3768
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1308,7 +1271,7 @@ public java.lang.String getNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.node_pool_id is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3755
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3768
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1335,7 +1298,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.node_pool_id is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3755
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3768
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1361,7 +1324,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.node_pool_id is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3755
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3768
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1383,7 +1346,7 @@ public Builder clearNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.node_pool_id is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3755
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=3768
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1602,7 +1565,18 @@ public RollbackNodePoolUpgradeRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new RollbackNodePoolUpgradeRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RollbackNodePoolUpgradeRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RollbackNodePoolUpgradeRequestOrBuilder.java
index 9e5bb625..f80e4f44 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RollbackNodePoolUpgradeRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/RollbackNodePoolUpgradeRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.project_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3732
+   *     See google/container/v1beta1/cluster_service.proto;l=3745
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.project_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3732
+   *     See google/container/v1beta1/cluster_service.proto;l=3745
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3741
+   *     google/container/v1beta1/cluster_service.proto;l=3754
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3741
+   *     google/container/v1beta1/cluster_service.proto;l=3754
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3748
+   *     See google/container/v1beta1/cluster_service.proto;l=3761
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.cluster_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3748
+   *     See google/container/v1beta1/cluster_service.proto;l=3761
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -144,7 +144,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3755
+   *     See google/container/v1beta1/cluster_service.proto;l=3768
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -161,7 +161,7 @@ public interface RollbackNodePoolUpgradeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.RollbackNodePoolUpgradeRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3755
+   *     See google/container/v1beta1/cluster_service.proto;l=3768
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SandboxConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SandboxConfig.java
index 2bb62ae7..f011eb2b 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SandboxConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SandboxConfig.java
@@ -53,59 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SandboxConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              sandboxType_ = s;
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              type_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SandboxConfig_descriptor;
@@ -268,7 +215,7 @@ private Type(int value) {
    * string sandbox_type = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.SandboxConfig.sandbox_type is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=860
+   *     google/container/v1beta1/cluster_service.proto;l=863
    * @return The sandboxType.
    */
   @java.lang.Override
@@ -294,7 +241,7 @@ public java.lang.String getSandboxType() {
    * string sandbox_type = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.SandboxConfig.sandbox_type is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=860
+   *     google/container/v1beta1/cluster_service.proto;l=863
    * @return The bytes for sandboxType.
    */
   @java.lang.Override
@@ -367,7 +314,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (type_ != com.google.container.v1beta1.SandboxConfig.Type.UNSPECIFIED.getNumber()) {
       output.writeEnum(2, type_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -382,7 +329,7 @@ public int getSerializedSize() {
     if (type_ != com.google.container.v1beta1.SandboxConfig.Type.UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, type_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -400,7 +347,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (!getSandboxType().equals(other.getSandboxType())) return false;
     if (type_ != other.type_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -415,7 +362,7 @@ public int hashCode() {
     hash = (53 * hash) + getSandboxType().hashCode();
     hash = (37 * hash) + TYPE_FIELD_NUMBER;
     hash = (53 * hash) + type_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -544,17 +491,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SandboxConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -649,7 +589,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SandboxConfig other) {
       if (other.type_ != 0) {
         setTypeValue(other.getTypeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -664,17 +604,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SandboxConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                sandboxType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                type_ = input.readEnum();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.SandboxConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -689,7 +655,7 @@ public Builder mergeFrom(
      * string sandbox_type = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.SandboxConfig.sandbox_type is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=860
+     *     google/container/v1beta1/cluster_service.proto;l=863
      * @return The sandboxType.
      */
     @java.lang.Deprecated
@@ -714,7 +680,7 @@ public java.lang.String getSandboxType() {
      * string sandbox_type = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.SandboxConfig.sandbox_type is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=860
+     *     google/container/v1beta1/cluster_service.proto;l=863
      * @return The bytes for sandboxType.
      */
     @java.lang.Deprecated
@@ -739,7 +705,7 @@ public com.google.protobuf.ByteString getSandboxTypeBytes() {
      * string sandbox_type = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.SandboxConfig.sandbox_type is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=860
+     *     google/container/v1beta1/cluster_service.proto;l=863
      * @param value The sandboxType to set.
      * @return This builder for chaining.
      */
@@ -763,7 +729,7 @@ public Builder setSandboxType(java.lang.String value) {
      * string sandbox_type = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.SandboxConfig.sandbox_type is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=860
+     *     google/container/v1beta1/cluster_service.proto;l=863
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -783,7 +749,7 @@ public Builder clearSandboxType() {
      * string sandbox_type = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.SandboxConfig.sandbox_type is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=860
+     *     google/container/v1beta1/cluster_service.proto;l=863
      * @param value The bytes for sandboxType to set.
      * @return This builder for chaining.
      */
@@ -922,7 +888,18 @@ public SandboxConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SandboxConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SandboxConfigOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SandboxConfigOrBuilder.java
index b34adfd4..7cf2d41f 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SandboxConfigOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SandboxConfigOrBuilder.java
@@ -33,7 +33,7 @@ public interface SandboxConfigOrBuilder
    * string sandbox_type = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.SandboxConfig.sandbox_type is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=860
+   *     google/container/v1beta1/cluster_service.proto;l=863
    * @return The sandboxType.
    */
   @java.lang.Deprecated
@@ -48,7 +48,7 @@ public interface SandboxConfigOrBuilder
    * string sandbox_type = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.SandboxConfig.sandbox_type is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=860
+   *     google/container/v1beta1/cluster_service.proto;l=863
    * @return The bytes for sandboxType.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SecurityBulletinEvent.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SecurityBulletinEvent.java
index c2c31ba1..73daf62c 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SecurityBulletinEvent.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SecurityBulletinEvent.java
@@ -61,132 +61,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SecurityBulletinEvent(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              resourceTypeAffected_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              bulletinId_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                cveIds_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              cveIds_.add(s);
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              severity_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              bulletinUri_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              briefDescription_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                affectedSupportedMinors_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              affectedSupportedMinors_.add(s);
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                patchedVersions_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000004;
-              }
-              patchedVersions_.add(s);
-              break;
-            }
-          case 74:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              suggestedUpgradeTarget_ = s;
-              break;
-            }
-          case 80:
-            {
-              manualStepsRequired_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        cveIds_ = cveIds_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        affectedSupportedMinors_ = affectedSupportedMinors_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000004) != 0)) {
-        patchedVersions_ = patchedVersions_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SecurityBulletinEvent_descriptor;
@@ -757,7 +631,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (manualStepsRequired_ != false) {
       output.writeBool(10, manualStepsRequired_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -811,7 +685,7 @@ public int getSerializedSize() {
     if (manualStepsRequired_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(10, manualStepsRequired_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -838,7 +712,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getPatchedVersionsList().equals(other.getPatchedVersionsList())) return false;
     if (!getSuggestedUpgradeTarget().equals(other.getSuggestedUpgradeTarget())) return false;
     if (getManualStepsRequired() != other.getManualStepsRequired()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -875,7 +749,7 @@ public int hashCode() {
     hash = (53 * hash) + getSuggestedUpgradeTarget().hashCode();
     hash = (37 * hash) + MANUAL_STEPS_REQUIRED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getManualStepsRequired());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1005,17 +879,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SecurityBulletinEvent.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1198,7 +1065,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SecurityBulletinEvent othe
       if (other.getManualStepsRequired() != false) {
         setManualStepsRequired(other.getManualStepsRequired());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1213,18 +1080,94 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SecurityBulletinEvent parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                resourceTypeAffected_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                bulletinId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureCveIdsIsMutable();
+                cveIds_.add(s);
+                break;
+              } // case 26
+            case 34:
+              {
+                severity_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                bulletinUri_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                briefDescription_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 58:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureAffectedSupportedMinorsIsMutable();
+                affectedSupportedMinors_.add(s);
+                break;
+              } // case 58
+            case 66:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensurePatchedVersionsIsMutable();
+                patchedVersions_.add(s);
+                break;
+              } // case 66
+            case 74:
+              {
+                suggestedUpgradeTarget_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 74
+            case 80:
+              {
+                manualStepsRequired_ = input.readBool();
+
+                break;
+              } // case 80
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SecurityBulletinEvent) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2493,7 +2436,18 @@ public SecurityBulletinEvent parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SecurityBulletinEvent(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ServerConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ServerConfig.java
index 7a1bc286..322d4ef0 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ServerConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ServerConfig.java
@@ -57,135 +57,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ServerConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              defaultClusterVersion_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                validNodeVersions_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              validNodeVersions_.add(s);
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              defaultImageType_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                validImageTypes_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000002;
-              }
-              validImageTypes_.add(s);
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000004) != 0)) {
-                validMasterVersions_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000004;
-              }
-              validMasterVersions_.add(s);
-              break;
-            }
-          case 74:
-            {
-              if (!((mutable_bitField0_ & 0x00000008) != 0)) {
-                channels_ =
-                    new java.util.ArrayList<
-                        com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig>();
-                mutable_bitField0_ |= 0x00000008;
-              }
-              channels_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig.parser(),
-                      extensionRegistry));
-              break;
-            }
-          case 82:
-            {
-              if (!((mutable_bitField0_ & 0x00000010) != 0)) {
-                windowsVersionMaps_ =
-                    com.google.protobuf.MapField.newMapField(
-                        WindowsVersionMapsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000010;
-              }
-              com.google.protobuf.MapEntry<
-                      java.lang.String, com.google.container.v1beta1.WindowsVersions>
-                  windowsVersionMaps__ =
-                      input.readMessage(
-                          WindowsVersionMapsDefaultEntryHolder.defaultEntry.getParserForType(),
-                          extensionRegistry);
-              windowsVersionMaps_
-                  .getMutableMap()
-                  .put(windowsVersionMaps__.getKey(), windowsVersionMaps__.getValue());
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        validNodeVersions_ = validNodeVersions_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000002) != 0)) {
-        validImageTypes_ = validImageTypes_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000004) != 0)) {
-        validMasterVersions_ = validMasterVersions_.getUnmodifiableView();
-      }
-      if (((mutable_bitField0_ & 0x00000008) != 0)) {
-        channels_ = java.util.Collections.unmodifiableList(channels_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ServerConfig_descriptor;
@@ -438,92 +309,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private ReleaseChannelConfig(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      int mutable_bitField0_ = 0;
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 8:
-              {
-                int rawValue = input.readEnum();
-
-                channel_ = rawValue;
-                break;
-              }
-            case 18:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                defaultVersion_ = s;
-                break;
-              }
-            case 26:
-              {
-                if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                  availableVersions_ =
-                      new java.util.ArrayList<
-                          com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig
-                              .AvailableVersion>();
-                  mutable_bitField0_ |= 0x00000001;
-                }
-                availableVersions_.add(
-                    input.readMessage(
-                        com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig
-                            .AvailableVersion.parser(),
-                        extensionRegistry));
-                break;
-              }
-            case 34:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-                if (!((mutable_bitField0_ & 0x00000002) != 0)) {
-                  validVersions_ = new com.google.protobuf.LazyStringArrayList();
-                  mutable_bitField0_ |= 0x00000002;
-                }
-                validVersions_.add(s);
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        if (((mutable_bitField0_ & 0x00000001) != 0)) {
-          availableVersions_ = java.util.Collections.unmodifiableList(availableVersions_);
-        }
-        if (((mutable_bitField0_ & 0x00000002) != 0)) {
-          validVersions_ = validVersions_.getUnmodifiableView();
-        }
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_ServerConfig_ReleaseChannelConfig_descriptor;
@@ -632,60 +417,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
         return this.unknownFields;
       }
 
-      private AvailableVersion(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        this();
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
-        }
-        com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-            com.google.protobuf.UnknownFieldSet.newBuilder();
-        try {
-          boolean done = false;
-          while (!done) {
-            int tag = input.readTag();
-            switch (tag) {
-              case 0:
-                done = true;
-                break;
-              case 10:
-                {
-                  java.lang.String s = input.readStringRequireUtf8();
-
-                  version_ = s;
-                  break;
-                }
-              case 18:
-                {
-                  java.lang.String s = input.readStringRequireUtf8();
-
-                  reason_ = s;
-                  break;
-                }
-              default:
-                {
-                  if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                    done = true;
-                  }
-                  break;
-                }
-            }
-          }
-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          throw e.setUnfinishedMessage(this);
-        } catch (com.google.protobuf.UninitializedMessageException e) {
-          throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-        } catch (java.io.IOException e) {
-          throw new com.google.protobuf.InvalidProtocolBufferException(e)
-              .setUnfinishedMessage(this);
-        } finally {
-          this.unknownFields = unknownFields.build();
-          makeExtensionsImmutable();
-        }
-      }
-
       public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         return com.google.container.v1beta1.ClusterServiceProto
             .internal_static_google_container_v1beta1_ServerConfig_ReleaseChannelConfig_AvailableVersion_descriptor;
@@ -821,7 +552,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(reason_)) {
           com.google.protobuf.GeneratedMessageV3.writeString(output, 2, reason_);
         }
-        unknownFields.writeTo(output);
+        getUnknownFields().writeTo(output);
       }
 
       @java.lang.Override
@@ -836,7 +567,7 @@ public int getSerializedSize() {
         if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(reason_)) {
           size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, reason_);
         }
-        size += unknownFields.getSerializedSize();
+        size += getUnknownFields().getSerializedSize();
         memoizedSize = size;
         return size;
       }
@@ -856,7 +587,7 @@ public boolean equals(final java.lang.Object obj) {
 
         if (!getVersion().equals(other.getVersion())) return false;
         if (!getReason().equals(other.getReason())) return false;
-        if (!unknownFields.equals(other.unknownFields)) return false;
+        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
         return true;
       }
 
@@ -871,7 +602,7 @@ public int hashCode() {
         hash = (53 * hash) + getVersion().hashCode();
         hash = (37 * hash) + REASON_FIELD_NUMBER;
         hash = (53 * hash) + getReason().hashCode();
-        hash = (29 * hash) + unknownFields.hashCode();
+        hash = (29 * hash) + getUnknownFields().hashCode();
         memoizedHashCode = hash;
         return hash;
       }
@@ -1016,17 +747,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
 
         // Construct using
         // com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig.AvailableVersion.newBuilder()
-        private Builder() {
-          maybeForceBuilderInitialization();
-        }
+        private Builder() {}
 
         private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
           super(parent);
-          maybeForceBuilderInitialization();
-        }
-
-        private void maybeForceBuilderInitialization() {
-          if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
         }
 
         @java.lang.Override
@@ -1137,7 +861,7 @@ public Builder mergeFrom(
             reason_ = other.reason_;
             onChanged();
           }
-          this.mergeUnknownFields(other.unknownFields);
+          this.mergeUnknownFields(other.getUnknownFields());
           onChanged();
           return this;
         }
@@ -1152,20 +876,43 @@ public Builder mergeFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws java.io.IOException {
-          com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig.AvailableVersion
-              parsedMessage = null;
+          if (extensionRegistry == null) {
+            throw new java.lang.NullPointerException();
+          }
           try {
-            parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+            boolean done = false;
+            while (!done) {
+              int tag = input.readTag();
+              switch (tag) {
+                case 0:
+                  done = true;
+                  break;
+                case 10:
+                  {
+                    version_ = input.readStringRequireUtf8();
+
+                    break;
+                  } // case 10
+                case 18:
+                  {
+                    reason_ = input.readStringRequireUtf8();
+
+                    break;
+                  } // case 18
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
           } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-            parsedMessage =
-                (com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig.AvailableVersion)
-                    e.getUnfinishedMessage();
             throw e.unwrapIOException();
           } finally {
-            if (parsedMessage != null) {
-              mergeFrom(parsedMessage);
-            }
-          }
+            onChanged();
+          } // finally
           return this;
         }
 
@@ -1418,7 +1165,19 @@ public AvailableVersion parsePartialFrom(
                 com.google.protobuf.CodedInputStream input,
                 com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                 throws com.google.protobuf.InvalidProtocolBufferException {
-              return new AvailableVersion(input, extensionRegistry);
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
             }
           };
 
@@ -1715,7 +1474,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       for (int i = 0; i < validVersions_.size(); i++) {
         com.google.protobuf.GeneratedMessageV3.writeString(output, 4, validVersions_.getRaw(i));
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -1742,7 +1501,7 @@ public int getSerializedSize() {
         size += dataSize;
         size += 1 * getValidVersionsList().size();
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -1762,7 +1521,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getDefaultVersion().equals(other.getDefaultVersion())) return false;
       if (!getAvailableVersionsList().equals(other.getAvailableVersionsList())) return false;
       if (!getValidVersionsList().equals(other.getValidVersionsList())) return false;
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -1785,7 +1544,7 @@ public int hashCode() {
         hash = (37 * hash) + VALID_VERSIONS_FIELD_NUMBER;
         hash = (53 * hash) + getValidVersionsList().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -1917,19 +1676,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-          getAvailableVersionsFieldBuilder();
-        }
       }
 
       @java.lang.Override
@@ -1941,10 +1691,11 @@ public Builder clear() {
 
         if (availableVersionsBuilder_ == null) {
           availableVersions_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000001);
         } else {
+          availableVersions_ = null;
           availableVersionsBuilder_.clear();
         }
+        bitField0_ = (bitField0_ & ~0x00000001);
         validVersions_ = com.google.protobuf.LazyStringArrayList.EMPTY;
         bitField0_ = (bitField0_ & ~0x00000002);
         return this;
@@ -2090,7 +1841,7 @@ public Builder mergeFrom(
           }
           onChanged();
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -2105,19 +1856,66 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  channel_ = input.readEnum();
+
+                  break;
+                } // case 8
+              case 18:
+                {
+                  defaultVersion_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 18
+              case 26:
+                {
+                  com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig.AvailableVersion
+                      m =
+                          input.readMessage(
+                              com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig
+                                  .AvailableVersion.parser(),
+                              extensionRegistry);
+                  if (availableVersionsBuilder_ == null) {
+                    ensureAvailableVersionsIsMutable();
+                    availableVersions_.add(m);
+                  } else {
+                    availableVersionsBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 26
+              case 34:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+                  ensureValidVersionsIsMutable();
+                  validVersions_.add(s);
+                  break;
+                } // case 34
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -3010,7 +2808,19 @@ public ReleaseChannelConfig parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new ReleaseChannelConfig(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -3536,7 +3346,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         internalGetWindowsVersionMaps(),
         WindowsVersionMapsDefaultEntryHolder.defaultEntry,
         10);
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -3589,7 +3399,7 @@ public int getSerializedSize() {
                   .build();
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(10, windowsVersionMaps__);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -3613,7 +3423,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getChannelsList().equals(other.getChannelsList())) return false;
     if (!internalGetWindowsVersionMaps().equals(other.internalGetWindowsVersionMaps()))
       return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -3648,7 +3458,7 @@ public int hashCode() {
       hash = (37 * hash) + WINDOWS_VERSION_MAPS_FIELD_NUMBER;
       hash = (53 * hash) + internalGetWindowsVersionMaps().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -3797,19 +3607,10 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1beta1.ServerConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getChannelsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -3827,10 +3628,11 @@ public Builder clear() {
       bitField0_ = (bitField0_ & ~0x00000004);
       if (channelsBuilder_ == null) {
         channels_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000008);
       } else {
+        channels_ = null;
         channelsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000008);
       internalGetMutableWindowsVersionMaps().clear();
       return this;
     }
@@ -4003,7 +3805,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ServerConfig other) {
         }
       }
       internalGetMutableWindowsVersionMaps().mergeFrom(other.internalGetWindowsVersionMaps());
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -4018,17 +3820,91 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ServerConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                defaultClusterVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureValidNodeVersionsIsMutable();
+                validNodeVersions_.add(s);
+                break;
+              } // case 26
+            case 34:
+              {
+                defaultImageType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureValidImageTypesIsMutable();
+                validImageTypes_.add(s);
+                break;
+              } // case 42
+            case 50:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureValidMasterVersionsIsMutable();
+                validMasterVersions_.add(s);
+                break;
+              } // case 50
+            case 74:
+              {
+                com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig m =
+                    input.readMessage(
+                        com.google.container.v1beta1.ServerConfig.ReleaseChannelConfig.parser(),
+                        extensionRegistry);
+                if (channelsBuilder_ == null) {
+                  ensureChannelsIsMutable();
+                  channels_.add(m);
+                } else {
+                  channelsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 74
+            case 82:
+              {
+                com.google.protobuf.MapEntry<
+                        java.lang.String, com.google.container.v1beta1.WindowsVersions>
+                    windowsVersionMaps__ =
+                        input.readMessage(
+                            WindowsVersionMapsDefaultEntryHolder.defaultEntry.getParserForType(),
+                            extensionRegistry);
+                internalGetMutableWindowsVersionMaps()
+                    .getMutableMap()
+                    .put(windowsVersionMaps__.getKey(), windowsVersionMaps__.getValue());
+                break;
+              } // case 82
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ServerConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -5348,7 +5224,18 @@ public ServerConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ServerConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ServiceExternalIPsConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ServiceExternalIPsConfig.java
index 14e41d1c..fb710d4f 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ServiceExternalIPsConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ServiceExternalIPsConfig.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ServiceExternalIPsConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ServiceExternalIPsConfig_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.ServiceExternalIPsConfig) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -316,17 +272,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ServiceExternalIPsConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -415,7 +364,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ServiceExternalIPsConfig o
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -430,18 +379,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ServiceExternalIPsConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ServiceExternalIPsConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -529,7 +497,18 @@ public ServiceExternalIPsConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ServiceExternalIPsConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetAddonsConfigRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetAddonsConfigRequest.java
index d605467b..12f77c2e 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetAddonsConfigRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetAddonsConfigRequest.java
@@ -55,89 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetAddonsConfigRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1beta1.AddonsConfig.Builder subBuilder = null;
-              if (addonsConfig_ != null) {
-                subBuilder = addonsConfig_.toBuilder();
-              }
-              addonsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.AddonsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(addonsConfig_);
-                addonsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetAddonsConfigRequest_descriptor;
@@ -168,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2632
+   *     google/container/v1beta1/cluster_service.proto;l=2645
    * @return The projectId.
    */
   @java.lang.Override
@@ -197,7 +114,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2632
+   *     google/container/v1beta1/cluster_service.proto;l=2645
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -229,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2641
+   *     google/container/v1beta1/cluster_service.proto;l=2654
    * @return The zone.
    */
   @java.lang.Override
@@ -258,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2641
+   *     google/container/v1beta1/cluster_service.proto;l=2654
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -289,7 +206,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2648
+   *     google/container/v1beta1/cluster_service.proto;l=2661
    * @return The clusterId.
    */
   @java.lang.Override
@@ -317,7 +234,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2648
+   *     google/container/v1beta1/cluster_service.proto;l=2661
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -471,7 +388,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -495,7 +412,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -519,7 +436,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getAddonsConfig().equals(other.getAddonsConfig())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -542,7 +459,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -671,17 +588,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetAddonsConfigRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -806,7 +716,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetAddonsConfigRequest oth
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -821,18 +731,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetAddonsConfigRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getAddonsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SetAddonsConfigRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -850,7 +803,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2632
+     *     google/container/v1beta1/cluster_service.proto;l=2645
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -878,7 +831,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2632
+     *     google/container/v1beta1/cluster_service.proto;l=2645
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -906,7 +859,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2632
+     *     google/container/v1beta1/cluster_service.proto;l=2645
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -933,7 +886,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2632
+     *     google/container/v1beta1/cluster_service.proto;l=2645
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -956,7 +909,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2632
+     *     google/container/v1beta1/cluster_service.proto;l=2645
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -986,7 +939,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2641
+     *     google/container/v1beta1/cluster_service.proto;l=2654
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1014,7 +967,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2641
+     *     google/container/v1beta1/cluster_service.proto;l=2654
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1042,7 +995,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2641
+     *     google/container/v1beta1/cluster_service.proto;l=2654
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1069,7 +1022,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2641
+     *     google/container/v1beta1/cluster_service.proto;l=2654
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1092,7 +1045,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2641
+     *     google/container/v1beta1/cluster_service.proto;l=2654
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1121,7 +1074,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2648
+     *     google/container/v1beta1/cluster_service.proto;l=2661
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1148,7 +1101,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2648
+     *     google/container/v1beta1/cluster_service.proto;l=2661
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1175,7 +1128,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2648
+     *     google/container/v1beta1/cluster_service.proto;l=2661
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1201,7 +1154,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2648
+     *     google/container/v1beta1/cluster_service.proto;l=2661
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1223,7 +1176,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetAddonsConfigRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2648
+     *     google/container/v1beta1/cluster_service.proto;l=2661
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1595,7 +1548,18 @@ public SetAddonsConfigRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetAddonsConfigRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetAddonsConfigRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetAddonsConfigRequestOrBuilder.java
index ad767cab..786191ed 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetAddonsConfigRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetAddonsConfigRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2632
+   *     google/container/v1beta1/cluster_service.proto;l=2645
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2632
+   *     google/container/v1beta1/cluster_service.proto;l=2645
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2641
+   *     google/container/v1beta1/cluster_service.proto;l=2654
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2641
+   *     google/container/v1beta1/cluster_service.proto;l=2654
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2648
+   *     google/container/v1beta1/cluster_service.proto;l=2661
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetAddonsConfigRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetAddonsConfigRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2648
+   *     google/container/v1beta1/cluster_service.proto;l=2661
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLabelsRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLabelsRequest.java
index 0f413215..c1766c89 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLabelsRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLabelsRequest.java
@@ -58,98 +58,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetLabelsRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                resourceLabels_ =
-                    com.google.protobuf.MapField.newMapField(
-                        ResourceLabelsDefaultEntryHolder.defaultEntry);
-                mutable_bitField0_ |= 0x00000001;
-              }
-              com.google.protobuf.MapEntry resourceLabels__ =
-                  input.readMessage(
-                      ResourceLabelsDefaultEntryHolder.defaultEntry.getParserForType(),
-                      extensionRegistry);
-              resourceLabels_
-                  .getMutableMap()
-                  .put(resourceLabels__.getKey(), resourceLabels__.getValue());
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              labelFingerprint_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetLabelsRequest_descriptor;
@@ -191,7 +99,7 @@ protected com.google.protobuf.MapField internalGetMapField(int number) {
    * 
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3953
+   *     google/container/v1beta1/cluster_service.proto;l=3966
    * @return The projectId.
    */
   @java.lang.Override
@@ -220,7 +128,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3953
+   *     google/container/v1beta1/cluster_service.proto;l=3966
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -252,7 +160,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3962
+   *     google/container/v1beta1/cluster_service.proto;l=3975
    * @return The zone.
    */
   @java.lang.Override
@@ -281,7 +189,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3962
+   *     google/container/v1beta1/cluster_service.proto;l=3975
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -312,7 +220,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3969
+   *     google/container/v1beta1/cluster_service.proto;l=3982
    * @return The clusterId.
    */
   @java.lang.Override
@@ -340,7 +248,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3969
+   *     google/container/v1beta1/cluster_service.proto;l=3982
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -603,7 +511,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -637,7 +545,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -659,7 +567,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!internalGetResourceLabels().equals(other.internalGetResourceLabels())) return false;
     if (!getLabelFingerprint().equals(other.getLabelFingerprint())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -684,7 +592,7 @@ public int hashCode() {
     hash = (53 * hash) + getLabelFingerprint().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -835,17 +743,10 @@ protected com.google.protobuf.MapField internalGetMutableMapField(int number) {
     }
 
     // Construct using com.google.container.v1beta1.SetLabelsRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -967,7 +868,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetLabelsRequest other) {
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -982,17 +883,72 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetLabelsRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                com.google.protobuf.MapEntry resourceLabels__ =
+                    input.readMessage(
+                        ResourceLabelsDefaultEntryHolder.defaultEntry.getParserForType(),
+                        extensionRegistry);
+                internalGetMutableResourceLabels()
+                    .getMutableMap()
+                    .put(resourceLabels__.getKey(), resourceLabels__.getValue());
+                break;
+              } // case 34
+            case 42:
+              {
+                labelFingerprint_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.SetLabelsRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1012,7 +968,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3953
+     *     google/container/v1beta1/cluster_service.proto;l=3966
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -1040,7 +996,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3953
+     *     google/container/v1beta1/cluster_service.proto;l=3966
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -1068,7 +1024,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3953
+     *     google/container/v1beta1/cluster_service.proto;l=3966
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -1095,7 +1051,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3953
+     *     google/container/v1beta1/cluster_service.proto;l=3966
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1118,7 +1074,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3953
+     *     google/container/v1beta1/cluster_service.proto;l=3966
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1148,7 +1104,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3962
+     *     google/container/v1beta1/cluster_service.proto;l=3975
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1176,7 +1132,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3962
+     *     google/container/v1beta1/cluster_service.proto;l=3975
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1204,7 +1160,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3962
+     *     google/container/v1beta1/cluster_service.proto;l=3975
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1231,7 +1187,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3962
+     *     google/container/v1beta1/cluster_service.proto;l=3975
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1254,7 +1210,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3962
+     *     google/container/v1beta1/cluster_service.proto;l=3975
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1283,7 +1239,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3969
+     *     google/container/v1beta1/cluster_service.proto;l=3982
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1310,7 +1266,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3969
+     *     google/container/v1beta1/cluster_service.proto;l=3982
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1337,7 +1293,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3969
+     *     google/container/v1beta1/cluster_service.proto;l=3982
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1363,7 +1319,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3969
+     *     google/container/v1beta1/cluster_service.proto;l=3982
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1385,7 +1341,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLabelsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3969
+     *     google/container/v1beta1/cluster_service.proto;l=3982
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1850,7 +1806,18 @@ public SetLabelsRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetLabelsRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLabelsRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLabelsRequestOrBuilder.java
index 5f6fa1ee..76fa1932 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLabelsRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLabelsRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetLabelsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3953
+   *     google/container/v1beta1/cluster_service.proto;l=3966
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetLabelsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3953
+   *     google/container/v1beta1/cluster_service.proto;l=3966
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetLabelsRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3962
+   *     google/container/v1beta1/cluster_service.proto;l=3975
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetLabelsRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3962
+   *     google/container/v1beta1/cluster_service.proto;l=3975
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetLabelsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3969
+   *     google/container/v1beta1/cluster_service.proto;l=3982
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetLabelsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLabelsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3969
+   *     google/container/v1beta1/cluster_service.proto;l=3982
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLegacyAbacRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLegacyAbacRequest.java
index 00f77633..ee92fc5c 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLegacyAbacRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLegacyAbacRequest.java
@@ -56,78 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetLegacyAbacRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 32:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetLegacyAbacRequest_descriptor;
@@ -158,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3996
+   *     google/container/v1beta1/cluster_service.proto;l=4009
    * @return The projectId.
    */
   @java.lang.Override
@@ -187,7 +115,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3996
+   *     google/container/v1beta1/cluster_service.proto;l=4009
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -219,7 +147,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4005
+   *     google/container/v1beta1/cluster_service.proto;l=4018
    * @return The zone.
    */
   @java.lang.Override
@@ -248,7 +176,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4005
+   *     google/container/v1beta1/cluster_service.proto;l=4018
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -279,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4012
+   *     google/container/v1beta1/cluster_service.proto;l=4025
    * @return The clusterId.
    */
   @java.lang.Override
@@ -307,7 +235,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4012
+   *     google/container/v1beta1/cluster_service.proto;l=4025
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -422,7 +350,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -446,7 +374,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -467,7 +395,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (getEnabled() != other.getEnabled()) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -488,7 +416,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -618,17 +546,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetLegacyAbacRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -745,7 +666,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetLegacyAbacRequest other
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -760,18 +681,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetLegacyAbacRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 32:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 32
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SetLegacyAbacRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -789,7 +753,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3996
+     *     google/container/v1beta1/cluster_service.proto;l=4009
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -817,7 +781,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3996
+     *     google/container/v1beta1/cluster_service.proto;l=4009
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -845,7 +809,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3996
+     *     google/container/v1beta1/cluster_service.proto;l=4009
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -872,7 +836,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3996
+     *     google/container/v1beta1/cluster_service.proto;l=4009
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -895,7 +859,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3996
+     *     google/container/v1beta1/cluster_service.proto;l=4009
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -925,7 +889,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4005
+     *     google/container/v1beta1/cluster_service.proto;l=4018
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -953,7 +917,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4005
+     *     google/container/v1beta1/cluster_service.proto;l=4018
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -981,7 +945,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4005
+     *     google/container/v1beta1/cluster_service.proto;l=4018
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1008,7 +972,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4005
+     *     google/container/v1beta1/cluster_service.proto;l=4018
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1031,7 +995,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4005
+     *     google/container/v1beta1/cluster_service.proto;l=4018
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1060,7 +1024,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4012
+     *     google/container/v1beta1/cluster_service.proto;l=4025
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1087,7 +1051,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4012
+     *     google/container/v1beta1/cluster_service.proto;l=4025
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1114,7 +1078,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4012
+     *     google/container/v1beta1/cluster_service.proto;l=4025
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1140,7 +1104,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4012
+     *     google/container/v1beta1/cluster_service.proto;l=4025
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1162,7 +1126,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLegacyAbacRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4012
+     *     google/container/v1beta1/cluster_service.proto;l=4025
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1373,7 +1337,18 @@ public SetLegacyAbacRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetLegacyAbacRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLegacyAbacRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLegacyAbacRequestOrBuilder.java
index a4b1e123..8709ed4f 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLegacyAbacRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLegacyAbacRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3996
+   *     google/container/v1beta1/cluster_service.proto;l=4009
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3996
+   *     google/container/v1beta1/cluster_service.proto;l=4009
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4005
+   *     google/container/v1beta1/cluster_service.proto;l=4018
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4005
+   *     google/container/v1beta1/cluster_service.proto;l=4018
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4012
+   *     google/container/v1beta1/cluster_service.proto;l=4025
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetLegacyAbacRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLegacyAbacRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4012
+   *     google/container/v1beta1/cluster_service.proto;l=4025
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLocationsRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLocationsRequest.java
index a49d3bed..622edea3 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLocationsRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLocationsRequest.java
@@ -56,87 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetLocationsRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                locations_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              locations_.add(s);
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        locations_ = locations_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetLocationsRequest_descriptor;
@@ -167,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2667
+   *     google/container/v1beta1/cluster_service.proto;l=2680
    * @return The projectId.
    */
   @java.lang.Override
@@ -196,7 +115,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2667
+   *     google/container/v1beta1/cluster_service.proto;l=2680
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -228,7 +147,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2676
+   *     google/container/v1beta1/cluster_service.proto;l=2689
    * @return The zone.
    */
   @java.lang.Override
@@ -257,7 +176,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2676
+   *     google/container/v1beta1/cluster_service.proto;l=2689
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -288,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2683
+   *     google/container/v1beta1/cluster_service.proto;l=2696
    * @return The clusterId.
    */
   @java.lang.Override
@@ -316,7 +235,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2683
+   *     google/container/v1beta1/cluster_service.proto;l=2696
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -494,7 +413,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -523,7 +442,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -544,7 +463,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getLocationsList().equals(other.getLocationsList())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -567,7 +486,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -696,17 +615,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetLocationsRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -835,7 +747,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetLocationsRequest other)
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -850,17 +762,62 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetLocationsRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureLocationsIsMutable();
+                locations_.add(s);
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.SetLocationsRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -880,7 +837,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2667
+     *     google/container/v1beta1/cluster_service.proto;l=2680
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -908,7 +865,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2667
+     *     google/container/v1beta1/cluster_service.proto;l=2680
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -936,7 +893,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2667
+     *     google/container/v1beta1/cluster_service.proto;l=2680
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -963,7 +920,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2667
+     *     google/container/v1beta1/cluster_service.proto;l=2680
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -986,7 +943,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2667
+     *     google/container/v1beta1/cluster_service.proto;l=2680
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1016,7 +973,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2676
+     *     google/container/v1beta1/cluster_service.proto;l=2689
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1044,7 +1001,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2676
+     *     google/container/v1beta1/cluster_service.proto;l=2689
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1072,7 +1029,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2676
+     *     google/container/v1beta1/cluster_service.proto;l=2689
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1099,7 +1056,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2676
+     *     google/container/v1beta1/cluster_service.proto;l=2689
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1122,7 +1079,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2676
+     *     google/container/v1beta1/cluster_service.proto;l=2689
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1151,7 +1108,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2683
+     *     google/container/v1beta1/cluster_service.proto;l=2696
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1178,7 +1135,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2683
+     *     google/container/v1beta1/cluster_service.proto;l=2696
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1205,7 +1162,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2683
+     *     google/container/v1beta1/cluster_service.proto;l=2696
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1231,7 +1188,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2683
+     *     google/container/v1beta1/cluster_service.proto;l=2696
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1253,7 +1210,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLocationsRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2683
+     *     google/container/v1beta1/cluster_service.proto;l=2696
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1625,7 +1582,18 @@ public SetLocationsRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetLocationsRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLocationsRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLocationsRequestOrBuilder.java
index 79d89875..94d3b21e 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLocationsRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLocationsRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetLocationsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2667
+   *     google/container/v1beta1/cluster_service.proto;l=2680
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetLocationsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2667
+   *     google/container/v1beta1/cluster_service.proto;l=2680
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetLocationsRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2676
+   *     google/container/v1beta1/cluster_service.proto;l=2689
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetLocationsRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2676
+   *     google/container/v1beta1/cluster_service.proto;l=2689
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetLocationsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2683
+   *     google/container/v1beta1/cluster_service.proto;l=2696
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetLocationsRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLocationsRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2683
+   *     google/container/v1beta1/cluster_service.proto;l=2696
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLoggingServiceRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLoggingServiceRequest.java
index 3dff3770..328c1613 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLoggingServiceRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLoggingServiceRequest.java
@@ -56,80 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetLoggingServiceRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              loggingService_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetLoggingServiceRequest_descriptor;
@@ -160,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2544
+   *     google/container/v1beta1/cluster_service.proto;l=2557
    * @return The projectId.
    */
   @java.lang.Override
@@ -189,7 +115,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2544
+   *     google/container/v1beta1/cluster_service.proto;l=2557
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -221,7 +147,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2553
+   *     google/container/v1beta1/cluster_service.proto;l=2566
    * @return The zone.
    */
   @java.lang.Override
@@ -250,7 +176,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2553
+   *     google/container/v1beta1/cluster_service.proto;l=2566
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -281,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2560
+   *     google/container/v1beta1/cluster_service.proto;l=2573
    * @return The clusterId.
    */
   @java.lang.Override
@@ -309,7 +235,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2560
+   *     google/container/v1beta1/cluster_service.proto;l=2573
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -471,7 +397,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -495,7 +421,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -516,7 +442,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getLoggingService().equals(other.getLoggingService())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -537,7 +463,7 @@ public int hashCode() {
     hash = (53 * hash) + getLoggingService().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -667,17 +593,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetLoggingServiceRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -795,7 +714,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetLoggingServiceRequest o
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -810,18 +729,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetLoggingServiceRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                loggingService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SetLoggingServiceRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -839,7 +801,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2544
+     *     google/container/v1beta1/cluster_service.proto;l=2557
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -867,7 +829,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2544
+     *     google/container/v1beta1/cluster_service.proto;l=2557
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -895,7 +857,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2544
+     *     google/container/v1beta1/cluster_service.proto;l=2557
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -922,7 +884,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2544
+     *     google/container/v1beta1/cluster_service.proto;l=2557
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -945,7 +907,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2544
+     *     google/container/v1beta1/cluster_service.proto;l=2557
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -975,7 +937,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2553
+     *     google/container/v1beta1/cluster_service.proto;l=2566
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1003,7 +965,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2553
+     *     google/container/v1beta1/cluster_service.proto;l=2566
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1031,7 +993,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2553
+     *     google/container/v1beta1/cluster_service.proto;l=2566
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1058,7 +1020,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2553
+     *     google/container/v1beta1/cluster_service.proto;l=2566
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1081,7 +1043,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2553
+     *     google/container/v1beta1/cluster_service.proto;l=2566
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1110,7 +1072,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2560
+     *     google/container/v1beta1/cluster_service.proto;l=2573
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1137,7 +1099,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2560
+     *     google/container/v1beta1/cluster_service.proto;l=2573
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1164,7 +1126,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2560
+     *     google/container/v1beta1/cluster_service.proto;l=2573
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1190,7 +1152,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2560
+     *     google/container/v1beta1/cluster_service.proto;l=2573
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1212,7 +1174,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetLoggingServiceRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2560
+     *     google/container/v1beta1/cluster_service.proto;l=2573
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1517,7 +1479,18 @@ public SetLoggingServiceRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetLoggingServiceRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLoggingServiceRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLoggingServiceRequestOrBuilder.java
index e787c48e..e283ffc2 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLoggingServiceRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetLoggingServiceRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2544
+   *     google/container/v1beta1/cluster_service.proto;l=2557
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2544
+   *     google/container/v1beta1/cluster_service.proto;l=2557
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2553
+   *     google/container/v1beta1/cluster_service.proto;l=2566
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2553
+   *     google/container/v1beta1/cluster_service.proto;l=2566
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2560
+   *     google/container/v1beta1/cluster_service.proto;l=2573
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetLoggingServiceRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetLoggingServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2560
+   *     google/container/v1beta1/cluster_service.proto;l=2573
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMaintenancePolicyRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMaintenancePolicyRequest.java
index f983dd77..893a73ea 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMaintenancePolicyRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMaintenancePolicyRequest.java
@@ -55,89 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetMaintenancePolicyRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1beta1.MaintenancePolicy.Builder subBuilder = null;
-              if (maintenancePolicy_ != null) {
-                subBuilder = maintenancePolicy_.toBuilder();
-              }
-              maintenancePolicy_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MaintenancePolicy.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(maintenancePolicy_);
-                maintenancePolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetMaintenancePolicyRequest_descriptor;
@@ -445,7 +362,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -469,7 +386,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -493,7 +410,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getMaintenancePolicy().equals(other.getMaintenancePolicy())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -516,7 +433,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -646,17 +563,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetMaintenancePolicyRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -781,7 +691,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetMaintenancePolicyReques
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -796,18 +706,62 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetMaintenancePolicyRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(
+                    getMaintenancePolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SetMaintenancePolicyRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1505,7 +1459,18 @@ public SetMaintenancePolicyRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetMaintenancePolicyRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMasterAuthRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMasterAuthRequest.java
index 2180246d..372c16de 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMasterAuthRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMasterAuthRequest.java
@@ -56,96 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetMasterAuthRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 32:
-            {
-              int rawValue = input.readEnum();
-
-              action_ = rawValue;
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1beta1.MasterAuth.Builder subBuilder = null;
-              if (update_ != null) {
-                subBuilder = update_.toBuilder();
-              }
-              update_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MasterAuth.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(update_);
-                update_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetMasterAuthRequest_descriptor;
@@ -363,7 +273,7 @@ private Action(int value) {
    * 
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2768
+   *     google/container/v1beta1/cluster_service.proto;l=2781
    * @return The projectId.
    */
   @java.lang.Override
@@ -392,7 +302,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2768
+   *     google/container/v1beta1/cluster_service.proto;l=2781
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -424,7 +334,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2777
+   *     google/container/v1beta1/cluster_service.proto;l=2790
    * @return The zone.
    */
   @java.lang.Override
@@ -453,7 +363,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2777
+   *     google/container/v1beta1/cluster_service.proto;l=2790
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -484,7 +394,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2784
+   *     google/container/v1beta1/cluster_service.proto;l=2797
    * @return The clusterId.
    */
   @java.lang.Override
@@ -512,7 +422,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2784
+   *     google/container/v1beta1/cluster_service.proto;l=2797
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -706,7 +616,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -733,7 +643,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -758,7 +668,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getUpdate().equals(other.getUpdate())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -783,7 +693,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -912,17 +822,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetMasterAuthRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1053,7 +956,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetMasterAuthRequest other
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1068,18 +971,67 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetMasterAuthRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 32:
+              {
+                action_ = input.readEnum();
+
+                break;
+              } // case 32
+            case 42:
+              {
+                input.readMessage(getUpdateFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SetMasterAuthRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1097,7 +1049,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2768
+     *     google/container/v1beta1/cluster_service.proto;l=2781
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -1125,7 +1077,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2768
+     *     google/container/v1beta1/cluster_service.proto;l=2781
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -1153,7 +1105,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2768
+     *     google/container/v1beta1/cluster_service.proto;l=2781
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -1180,7 +1132,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2768
+     *     google/container/v1beta1/cluster_service.proto;l=2781
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1203,7 +1155,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2768
+     *     google/container/v1beta1/cluster_service.proto;l=2781
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1233,7 +1185,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2777
+     *     google/container/v1beta1/cluster_service.proto;l=2790
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1261,7 +1213,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2777
+     *     google/container/v1beta1/cluster_service.proto;l=2790
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1289,7 +1241,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2777
+     *     google/container/v1beta1/cluster_service.proto;l=2790
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1316,7 +1268,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2777
+     *     google/container/v1beta1/cluster_service.proto;l=2790
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1339,7 +1291,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2777
+     *     google/container/v1beta1/cluster_service.proto;l=2790
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1368,7 +1320,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2784
+     *     google/container/v1beta1/cluster_service.proto;l=2797
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1395,7 +1347,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2784
+     *     google/container/v1beta1/cluster_service.proto;l=2797
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1422,7 +1374,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2784
+     *     google/container/v1beta1/cluster_service.proto;l=2797
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1448,7 +1400,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2784
+     *     google/container/v1beta1/cluster_service.proto;l=2797
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1470,7 +1422,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMasterAuthRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2784
+     *     google/container/v1beta1/cluster_service.proto;l=2797
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1935,7 +1887,18 @@ public SetMasterAuthRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetMasterAuthRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMasterAuthRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMasterAuthRequestOrBuilder.java
index 4dd261fa..6eeeb031 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMasterAuthRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMasterAuthRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetMasterAuthRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2768
+   *     google/container/v1beta1/cluster_service.proto;l=2781
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetMasterAuthRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2768
+   *     google/container/v1beta1/cluster_service.proto;l=2781
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetMasterAuthRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2777
+   *     google/container/v1beta1/cluster_service.proto;l=2790
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetMasterAuthRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2777
+   *     google/container/v1beta1/cluster_service.proto;l=2790
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetMasterAuthRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2784
+   *     google/container/v1beta1/cluster_service.proto;l=2797
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetMasterAuthRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetMasterAuthRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2784
+   *     google/container/v1beta1/cluster_service.proto;l=2797
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMonitoringServiceRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMonitoringServiceRequest.java
index 8bddd74e..dea8df1b 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMonitoringServiceRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMonitoringServiceRequest.java
@@ -56,80 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetMonitoringServiceRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              monitoringService_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetMonitoringServiceRequest_descriptor;
@@ -160,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2588
+   *     google/container/v1beta1/cluster_service.proto;l=2601
    * @return The projectId.
    */
   @java.lang.Override
@@ -189,7 +115,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2588
+   *     google/container/v1beta1/cluster_service.proto;l=2601
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -221,7 +147,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2597
+   *     google/container/v1beta1/cluster_service.proto;l=2610
    * @return The zone.
    */
   @java.lang.Override
@@ -250,7 +176,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2597
+   *     google/container/v1beta1/cluster_service.proto;l=2610
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -281,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2604
+   *     google/container/v1beta1/cluster_service.proto;l=2617
    * @return The clusterId.
    */
   @java.lang.Override
@@ -309,7 +235,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2604
+   *     google/container/v1beta1/cluster_service.proto;l=2617
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -471,7 +397,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -495,7 +421,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -516,7 +442,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getMonitoringService().equals(other.getMonitoringService())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -537,7 +463,7 @@ public int hashCode() {
     hash = (53 * hash) + getMonitoringService().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -667,17 +593,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetMonitoringServiceRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -795,7 +714,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetMonitoringServiceReques
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -810,18 +729,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetMonitoringServiceRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                monitoringService_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SetMonitoringServiceRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -839,7 +801,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2588
+     *     See google/container/v1beta1/cluster_service.proto;l=2601
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -867,7 +829,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2588
+     *     See google/container/v1beta1/cluster_service.proto;l=2601
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -895,7 +857,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2588
+     *     See google/container/v1beta1/cluster_service.proto;l=2601
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -922,7 +884,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2588
+     *     See google/container/v1beta1/cluster_service.proto;l=2601
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -945,7 +907,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2588
+     *     See google/container/v1beta1/cluster_service.proto;l=2601
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -975,7 +937,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2597
+     *     google/container/v1beta1/cluster_service.proto;l=2610
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1003,7 +965,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2597
+     *     google/container/v1beta1/cluster_service.proto;l=2610
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1031,7 +993,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2597
+     *     google/container/v1beta1/cluster_service.proto;l=2610
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1058,7 +1020,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2597
+     *     google/container/v1beta1/cluster_service.proto;l=2610
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1081,7 +1043,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2597
+     *     google/container/v1beta1/cluster_service.proto;l=2610
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1110,7 +1072,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2604
+     *     See google/container/v1beta1/cluster_service.proto;l=2617
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1137,7 +1099,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2604
+     *     See google/container/v1beta1/cluster_service.proto;l=2617
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1164,7 +1126,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2604
+     *     See google/container/v1beta1/cluster_service.proto;l=2617
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1190,7 +1152,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2604
+     *     See google/container/v1beta1/cluster_service.proto;l=2617
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1212,7 +1174,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2604
+     *     See google/container/v1beta1/cluster_service.proto;l=2617
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1517,7 +1479,18 @@ public SetMonitoringServiceRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetMonitoringServiceRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMonitoringServiceRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMonitoringServiceRequestOrBuilder.java
index 41854a3b..cec89afd 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMonitoringServiceRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetMonitoringServiceRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2588
+   *     google/container/v1beta1/cluster_service.proto;l=2601
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2588
+   *     google/container/v1beta1/cluster_service.proto;l=2601
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2597
+   *     google/container/v1beta1/cluster_service.proto;l=2610
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2597
+   *     google/container/v1beta1/cluster_service.proto;l=2610
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2604
+   *     google/container/v1beta1/cluster_service.proto;l=2617
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetMonitoringServiceRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetMonitoringServiceRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2604
+   *     google/container/v1beta1/cluster_service.proto;l=2617
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNetworkPolicyRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNetworkPolicyRequest.java
index 810382f8..3fe37bf6 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNetworkPolicyRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNetworkPolicyRequest.java
@@ -55,89 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetNetworkPolicyRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1beta1.NetworkPolicy.Builder subBuilder = null;
-              if (networkPolicy_ != null) {
-                subBuilder = networkPolicy_.toBuilder();
-              }
-              networkPolicy_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NetworkPolicy.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(networkPolicy_);
-                networkPolicy_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetNetworkPolicyRequest_descriptor;
@@ -168,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4199
+   *     google/container/v1beta1/cluster_service.proto;l=4212
    * @return The projectId.
    */
   @java.lang.Override
@@ -197,7 +114,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4199
+   *     google/container/v1beta1/cluster_service.proto;l=4212
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -229,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4208
+   *     google/container/v1beta1/cluster_service.proto;l=4221
    * @return The zone.
    */
   @java.lang.Override
@@ -258,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4208
+   *     google/container/v1beta1/cluster_service.proto;l=4221
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -289,7 +206,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4215
+   *     google/container/v1beta1/cluster_service.proto;l=4228
    * @return The clusterId.
    */
   @java.lang.Override
@@ -317,7 +234,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4215
+   *     google/container/v1beta1/cluster_service.proto;l=4228
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -468,7 +385,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -492,7 +409,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -516,7 +433,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getNetworkPolicy().equals(other.getNetworkPolicy())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -539,7 +456,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -668,17 +585,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetNetworkPolicyRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -803,7 +713,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetNetworkPolicyRequest ot
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -818,18 +728,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetNetworkPolicyRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getNetworkPolicyFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SetNetworkPolicyRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -847,7 +800,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4199
+     *     google/container/v1beta1/cluster_service.proto;l=4212
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -875,7 +828,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4199
+     *     google/container/v1beta1/cluster_service.proto;l=4212
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -903,7 +856,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4199
+     *     google/container/v1beta1/cluster_service.proto;l=4212
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -930,7 +883,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4199
+     *     google/container/v1beta1/cluster_service.proto;l=4212
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -953,7 +906,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4199
+     *     google/container/v1beta1/cluster_service.proto;l=4212
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -983,7 +936,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4208
+     *     google/container/v1beta1/cluster_service.proto;l=4221
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1011,7 +964,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4208
+     *     google/container/v1beta1/cluster_service.proto;l=4221
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1039,7 +992,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4208
+     *     google/container/v1beta1/cluster_service.proto;l=4221
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1066,7 +1019,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4208
+     *     google/container/v1beta1/cluster_service.proto;l=4221
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1089,7 +1042,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4208
+     *     google/container/v1beta1/cluster_service.proto;l=4221
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1118,7 +1071,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4215
+     *     google/container/v1beta1/cluster_service.proto;l=4228
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1145,7 +1098,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4215
+     *     google/container/v1beta1/cluster_service.proto;l=4228
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1172,7 +1125,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4215
+     *     google/container/v1beta1/cluster_service.proto;l=4228
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1198,7 +1151,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4215
+     *     google/container/v1beta1/cluster_service.proto;l=4228
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1220,7 +1173,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4215
+     *     google/container/v1beta1/cluster_service.proto;l=4228
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1583,7 +1536,18 @@ public SetNetworkPolicyRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetNetworkPolicyRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNetworkPolicyRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNetworkPolicyRequestOrBuilder.java
index 306aca03..fbacd0e4 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNetworkPolicyRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNetworkPolicyRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4199
+   *     google/container/v1beta1/cluster_service.proto;l=4212
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4199
+   *     google/container/v1beta1/cluster_service.proto;l=4212
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4208
+   *     google/container/v1beta1/cluster_service.proto;l=4221
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4208
+   *     google/container/v1beta1/cluster_service.proto;l=4221
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4215
+   *     google/container/v1beta1/cluster_service.proto;l=4228
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetNetworkPolicyRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNetworkPolicyRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4215
+   *     google/container/v1beta1/cluster_service.proto;l=4228
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolAutoscalingRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolAutoscalingRequest.java
index d3221548..ee635e8d 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolAutoscalingRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolAutoscalingRequest.java
@@ -56,96 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetNodePoolAutoscalingRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1beta1.NodePoolAutoscaling.Builder subBuilder = null;
-              if (autoscaling_ != null) {
-                subBuilder = autoscaling_.toBuilder();
-              }
-              autoscaling_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePoolAutoscaling.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(autoscaling_);
-                autoscaling_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetNodePoolAutoscalingRequest_descriptor;
@@ -176,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.project_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2502
+   *     See google/container/v1beta1/cluster_service.proto;l=2515
    * @return The projectId.
    */
   @java.lang.Override
@@ -205,7 +115,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.project_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2502
+   *     See google/container/v1beta1/cluster_service.proto;l=2515
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -237,7 +147,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2511
+   *     google/container/v1beta1/cluster_service.proto;l=2524
    * @return The zone.
    */
   @java.lang.Override
@@ -266,7 +176,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2511
+   *     google/container/v1beta1/cluster_service.proto;l=2524
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -297,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.cluster_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2518
+   *     See google/container/v1beta1/cluster_service.proto;l=2531
    * @return The clusterId.
    */
   @java.lang.Override
@@ -325,7 +235,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.cluster_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2518
+   *     See google/container/v1beta1/cluster_service.proto;l=2531
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -356,7 +266,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2525
+   *     See google/container/v1beta1/cluster_service.proto;l=2538
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -384,7 +294,7 @@ public java.lang.String getNodePoolId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2525
+   *     See google/container/v1beta1/cluster_service.proto;l=2538
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -540,7 +450,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -567,7 +477,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -592,7 +502,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getAutoscaling().equals(other.getAutoscaling())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -617,7 +527,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -747,17 +657,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetNodePoolAutoscalingRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -889,7 +792,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetNodePoolAutoscalingRequ
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -904,18 +807,67 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetNodePoolAutoscalingRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                input.readMessage(getAutoscalingFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SetNodePoolAutoscalingRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -933,7 +885,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2502
+     *     See google/container/v1beta1/cluster_service.proto;l=2515
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -961,7 +913,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2502
+     *     See google/container/v1beta1/cluster_service.proto;l=2515
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -989,7 +941,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2502
+     *     See google/container/v1beta1/cluster_service.proto;l=2515
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -1016,7 +968,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2502
+     *     See google/container/v1beta1/cluster_service.proto;l=2515
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1039,7 +991,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2502
+     *     See google/container/v1beta1/cluster_service.proto;l=2515
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1069,7 +1021,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2511
+     *     google/container/v1beta1/cluster_service.proto;l=2524
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1097,7 +1049,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2511
+     *     google/container/v1beta1/cluster_service.proto;l=2524
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1125,7 +1077,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2511
+     *     google/container/v1beta1/cluster_service.proto;l=2524
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1152,7 +1104,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2511
+     *     google/container/v1beta1/cluster_service.proto;l=2524
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1175,7 +1127,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2511
+     *     google/container/v1beta1/cluster_service.proto;l=2524
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1204,7 +1156,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2518
+     *     See google/container/v1beta1/cluster_service.proto;l=2531
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1231,7 +1183,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2518
+     *     See google/container/v1beta1/cluster_service.proto;l=2531
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1258,7 +1210,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2518
+     *     See google/container/v1beta1/cluster_service.proto;l=2531
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1284,7 +1236,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2518
+     *     See google/container/v1beta1/cluster_service.proto;l=2531
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1306,7 +1258,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=2518
+     *     See google/container/v1beta1/cluster_service.proto;l=2531
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1335,7 +1287,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.node_pool_id is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=2525
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=2538
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1362,7 +1314,7 @@ public java.lang.String getNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.node_pool_id is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=2525
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=2538
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1389,7 +1341,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.node_pool_id is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=2525
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=2538
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1415,7 +1367,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.node_pool_id is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=2525
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=2538
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1437,7 +1389,7 @@ public Builder clearNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.node_pool_id is
-     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=2525
+     *     deprecated. See google/container/v1beta1/cluster_service.proto;l=2538
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1805,7 +1757,18 @@ public SetNodePoolAutoscalingRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetNodePoolAutoscalingRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolAutoscalingRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolAutoscalingRequestOrBuilder.java
index b6694ff9..f6ef66bd 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolAutoscalingRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolAutoscalingRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.project_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2502
+   *     See google/container/v1beta1/cluster_service.proto;l=2515
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.project_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2502
+   *     See google/container/v1beta1/cluster_service.proto;l=2515
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2511
+   *     google/container/v1beta1/cluster_service.proto;l=2524
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2511
+   *     google/container/v1beta1/cluster_service.proto;l=2524
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.cluster_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2518
+   *     See google/container/v1beta1/cluster_service.proto;l=2531
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.cluster_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2518
+   *     See google/container/v1beta1/cluster_service.proto;l=2531
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -144,7 +144,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2525
+   *     See google/container/v1beta1/cluster_service.proto;l=2538
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -161,7 +161,7 @@ public interface SetNodePoolAutoscalingRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolAutoscalingRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=2525
+   *     See google/container/v1beta1/cluster_service.proto;l=2538
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolManagementRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolManagementRequest.java
index cc94a7e9..0816b259 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolManagementRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolManagementRequest.java
@@ -57,96 +57,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetNodePoolManagementRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1beta1.NodeManagement.Builder subBuilder = null;
-              if (management_ != null) {
-                subBuilder = management_.toBuilder();
-              }
-              management_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeManagement.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(management_);
-                management_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetNodePoolManagementRequest_descriptor;
@@ -177,7 +87,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3637
+   *     google/container/v1beta1/cluster_service.proto;l=3650
    * @return The projectId.
    */
   @java.lang.Override
@@ -206,7 +116,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3637
+   *     google/container/v1beta1/cluster_service.proto;l=3650
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -238,7 +148,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3646
+   *     google/container/v1beta1/cluster_service.proto;l=3659
    * @return The zone.
    */
   @java.lang.Override
@@ -267,7 +177,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3646
+   *     google/container/v1beta1/cluster_service.proto;l=3659
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -298,7 +208,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3653
+   *     google/container/v1beta1/cluster_service.proto;l=3666
    * @return The clusterId.
    */
   @java.lang.Override
@@ -326,7 +236,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3653
+   *     google/container/v1beta1/cluster_service.proto;l=3666
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -357,7 +267,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3660
+   *     See google/container/v1beta1/cluster_service.proto;l=3673
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -385,7 +295,7 @@ public java.lang.String getNodePoolId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3660
+   *     See google/container/v1beta1/cluster_service.proto;l=3673
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -541,7 +451,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -568,7 +478,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -593,7 +503,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getManagement().equals(other.getManagement())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -618,7 +528,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -749,17 +659,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetNodePoolManagementRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -891,7 +794,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetNodePoolManagementReque
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -906,18 +809,67 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetNodePoolManagementRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                input.readMessage(getManagementFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SetNodePoolManagementRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -935,7 +887,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3637
+     *     See google/container/v1beta1/cluster_service.proto;l=3650
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -963,7 +915,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3637
+     *     See google/container/v1beta1/cluster_service.proto;l=3650
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -991,7 +943,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3637
+     *     See google/container/v1beta1/cluster_service.proto;l=3650
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -1018,7 +970,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3637
+     *     See google/container/v1beta1/cluster_service.proto;l=3650
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1041,7 +993,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.project_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3637
+     *     See google/container/v1beta1/cluster_service.proto;l=3650
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1071,7 +1023,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3646
+     *     google/container/v1beta1/cluster_service.proto;l=3659
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1099,7 +1051,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3646
+     *     google/container/v1beta1/cluster_service.proto;l=3659
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1127,7 +1079,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3646
+     *     google/container/v1beta1/cluster_service.proto;l=3659
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1154,7 +1106,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3646
+     *     google/container/v1beta1/cluster_service.proto;l=3659
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1177,7 +1129,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3646
+     *     google/container/v1beta1/cluster_service.proto;l=3659
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1206,7 +1158,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3653
+     *     See google/container/v1beta1/cluster_service.proto;l=3666
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1233,7 +1185,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3653
+     *     See google/container/v1beta1/cluster_service.proto;l=3666
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1260,7 +1212,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3653
+     *     See google/container/v1beta1/cluster_service.proto;l=3666
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1286,7 +1238,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3653
+     *     See google/container/v1beta1/cluster_service.proto;l=3666
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1308,7 +1260,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.cluster_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3653
+     *     See google/container/v1beta1/cluster_service.proto;l=3666
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1337,7 +1289,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.node_pool_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3660
+     *     See google/container/v1beta1/cluster_service.proto;l=3673
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1364,7 +1316,7 @@ public java.lang.String getNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.node_pool_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3660
+     *     See google/container/v1beta1/cluster_service.proto;l=3673
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1391,7 +1343,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.node_pool_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3660
+     *     See google/container/v1beta1/cluster_service.proto;l=3673
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1417,7 +1369,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.node_pool_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3660
+     *     See google/container/v1beta1/cluster_service.proto;l=3673
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1439,7 +1391,7 @@ public Builder clearNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.node_pool_id is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=3660
+     *     See google/container/v1beta1/cluster_service.proto;l=3673
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1807,7 +1759,18 @@ public SetNodePoolManagementRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetNodePoolManagementRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolManagementRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolManagementRequestOrBuilder.java
index 8e66cbdd..f761b881 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolManagementRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolManagementRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3637
+   *     google/container/v1beta1/cluster_service.proto;l=3650
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3637
+   *     google/container/v1beta1/cluster_service.proto;l=3650
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3646
+   *     google/container/v1beta1/cluster_service.proto;l=3659
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3646
+   *     google/container/v1beta1/cluster_service.proto;l=3659
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3653
+   *     google/container/v1beta1/cluster_service.proto;l=3666
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3653
+   *     google/container/v1beta1/cluster_service.proto;l=3666
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -144,7 +144,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3660
+   *     See google/container/v1beta1/cluster_service.proto;l=3673
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -161,7 +161,7 @@ public interface SetNodePoolManagementRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolManagementRequest.node_pool_id is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=3660
+   *     See google/container/v1beta1/cluster_service.proto;l=3673
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolSizeRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolSizeRequest.java
index cb82637a..9ce8641b 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolSizeRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolSizeRequest.java
@@ -56,85 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private SetNodePoolSizeRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 40:
-            {
-              nodeCount_ = input.readInt32();
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_SetNodePoolSizeRequest_descriptor;
@@ -165,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3679
+   *     google/container/v1beta1/cluster_service.proto;l=3692
    * @return The projectId.
    */
   @java.lang.Override
@@ -194,7 +115,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3679
+   *     google/container/v1beta1/cluster_service.proto;l=3692
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -226,7 +147,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3688
+   *     google/container/v1beta1/cluster_service.proto;l=3701
    * @return The zone.
    */
   @java.lang.Override
@@ -255,7 +176,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3688
+   *     google/container/v1beta1/cluster_service.proto;l=3701
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -286,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3695
+   *     google/container/v1beta1/cluster_service.proto;l=3708
    * @return The clusterId.
    */
   @java.lang.Override
@@ -314,7 +235,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3695
+   *     google/container/v1beta1/cluster_service.proto;l=3708
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -345,7 +266,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3702
+   *     google/container/v1beta1/cluster_service.proto;l=3715
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -373,7 +294,7 @@ public java.lang.String getNodePoolId() {
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3702
+   *     google/container/v1beta1/cluster_service.proto;l=3715
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -493,7 +414,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -520,7 +441,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -542,7 +463,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getNodePoolId().equals(other.getNodePoolId())) return false;
     if (getNodeCount() != other.getNodeCount()) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -565,7 +486,7 @@ public int hashCode() {
     hash = (53 * hash) + getNodeCount();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -694,17 +615,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.SetNodePoolSizeRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -828,7 +742,7 @@ public Builder mergeFrom(com.google.container.v1beta1.SetNodePoolSizeRequest oth
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -843,18 +757,67 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.SetNodePoolSizeRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 40:
+              {
+                nodeCount_ = input.readInt32();
+
+                break;
+              } // case 40
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.SetNodePoolSizeRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -872,7 +835,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3679
+     *     google/container/v1beta1/cluster_service.proto;l=3692
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -900,7 +863,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3679
+     *     google/container/v1beta1/cluster_service.proto;l=3692
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -928,7 +891,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3679
+     *     google/container/v1beta1/cluster_service.proto;l=3692
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -955,7 +918,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3679
+     *     google/container/v1beta1/cluster_service.proto;l=3692
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -978,7 +941,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3679
+     *     google/container/v1beta1/cluster_service.proto;l=3692
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -1008,7 +971,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3688
+     *     google/container/v1beta1/cluster_service.proto;l=3701
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1036,7 +999,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3688
+     *     google/container/v1beta1/cluster_service.proto;l=3701
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1064,7 +1027,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3688
+     *     google/container/v1beta1/cluster_service.proto;l=3701
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1091,7 +1054,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3688
+     *     google/container/v1beta1/cluster_service.proto;l=3701
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1114,7 +1077,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3688
+     *     google/container/v1beta1/cluster_service.proto;l=3701
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1143,7 +1106,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3695
+     *     google/container/v1beta1/cluster_service.proto;l=3708
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1170,7 +1133,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3695
+     *     google/container/v1beta1/cluster_service.proto;l=3708
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1197,7 +1160,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3695
+     *     google/container/v1beta1/cluster_service.proto;l=3708
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1223,7 +1186,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3695
+     *     google/container/v1beta1/cluster_service.proto;l=3708
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1245,7 +1208,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3695
+     *     google/container/v1beta1/cluster_service.proto;l=3708
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1274,7 +1237,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3702
+     *     google/container/v1beta1/cluster_service.proto;l=3715
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -1301,7 +1264,7 @@ public java.lang.String getNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3702
+     *     google/container/v1beta1/cluster_service.proto;l=3715
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -1328,7 +1291,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3702
+     *     google/container/v1beta1/cluster_service.proto;l=3715
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1354,7 +1317,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3702
+     *     google/container/v1beta1/cluster_service.proto;l=3715
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1376,7 +1339,7 @@ public Builder clearNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=3702
+     *     google/container/v1beta1/cluster_service.proto;l=3715
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -1592,7 +1555,18 @@ public SetNodePoolSizeRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new SetNodePoolSizeRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolSizeRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolSizeRequestOrBuilder.java
index f4fcf542..94f19def 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolSizeRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/SetNodePoolSizeRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3679
+   *     google/container/v1beta1/cluster_service.proto;l=3692
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3679
+   *     google/container/v1beta1/cluster_service.proto;l=3692
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3688
+   *     google/container/v1beta1/cluster_service.proto;l=3701
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3688
+   *     google/container/v1beta1/cluster_service.proto;l=3701
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3695
+   *     google/container/v1beta1/cluster_service.proto;l=3708
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3695
+   *     google/container/v1beta1/cluster_service.proto;l=3708
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -144,7 +144,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3702
+   *     google/container/v1beta1/cluster_service.proto;l=3715
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -161,7 +161,7 @@ public interface SetNodePoolSizeRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.SetNodePoolSizeRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=3702
+   *     google/container/v1beta1/cluster_service.proto;l=3715
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ShieldedInstanceConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ShieldedInstanceConfig.java
index d4086cf2..9892d1c3 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ShieldedInstanceConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ShieldedInstanceConfig.java
@@ -50,55 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ShieldedInstanceConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enableSecureBoot_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              enableIntegrityMonitoring_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ShieldedInstanceConfig_descriptor;
@@ -177,7 +128,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enableIntegrityMonitoring_ != false) {
       output.writeBool(2, enableIntegrityMonitoring_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -192,7 +143,7 @@ public int getSerializedSize() {
     if (enableIntegrityMonitoring_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(2, enableIntegrityMonitoring_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -210,7 +161,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (getEnableSecureBoot() != other.getEnableSecureBoot()) return false;
     if (getEnableIntegrityMonitoring() != other.getEnableIntegrityMonitoring()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -225,7 +176,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableSecureBoot());
     hash = (37 * hash) + ENABLE_INTEGRITY_MONITORING_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableIntegrityMonitoring());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -354,17 +305,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ShieldedInstanceConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -459,7 +403,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ShieldedInstanceConfig oth
       if (other.getEnableIntegrityMonitoring() != false) {
         setEnableIntegrityMonitoring(other.getEnableIntegrityMonitoring());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -474,18 +418,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ShieldedInstanceConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enableSecureBoot_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                enableIntegrityMonitoring_ = input.readBool();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.ShieldedInstanceConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -646,7 +615,18 @@ public ShieldedInstanceConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ShieldedInstanceConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ShieldedNodes.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ShieldedNodes.java
index af172e34..bdde06d5 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ShieldedNodes.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/ShieldedNodes.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private ShieldedNodes(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_ShieldedNodes_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -173,7 +129,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.ShieldedNodes) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -186,7 +142,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -315,17 +271,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.ShieldedNodes.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -413,7 +362,7 @@ public Builder mergeFrom(com.google.container.v1beta1.ShieldedNodes other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -428,17 +377,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.ShieldedNodes parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.ShieldedNodes) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -526,7 +495,18 @@ public ShieldedNodes parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new ShieldedNodes(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StartIPRotationRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StartIPRotationRequest.java
index f59acc70..c45a439d 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StartIPRotationRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StartIPRotationRequest.java
@@ -56,78 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private StartIPRotationRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 56:
-            {
-              rotateCredentials_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_StartIPRotationRequest_descriptor;
@@ -158,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4031
+   *     google/container/v1beta1/cluster_service.proto;l=4044
    * @return The projectId.
    */
   @java.lang.Override
@@ -187,7 +115,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4031
+   *     google/container/v1beta1/cluster_service.proto;l=4044
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -219,7 +147,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4040
+   *     google/container/v1beta1/cluster_service.proto;l=4053
    * @return The zone.
    */
   @java.lang.Override
@@ -248,7 +176,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4040
+   *     google/container/v1beta1/cluster_service.proto;l=4053
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -279,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4047
+   *     google/container/v1beta1/cluster_service.proto;l=4060
    * @return The clusterId.
    */
   @java.lang.Override
@@ -307,7 +235,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4047
+   *     google/container/v1beta1/cluster_service.proto;l=4060
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -422,7 +350,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (rotateCredentials_ != false) {
       output.writeBool(7, rotateCredentials_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -446,7 +374,7 @@ public int getSerializedSize() {
     if (rotateCredentials_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(7, rotateCredentials_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -467,7 +395,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getName().equals(other.getName())) return false;
     if (getRotateCredentials() != other.getRotateCredentials()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -488,7 +416,7 @@ public int hashCode() {
     hash = (53 * hash) + getName().hashCode();
     hash = (37 * hash) + ROTATE_CREDENTIALS_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getRotateCredentials());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -618,17 +546,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.StartIPRotationRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -745,7 +666,7 @@ public Builder mergeFrom(com.google.container.v1beta1.StartIPRotationRequest oth
       if (other.getRotateCredentials() != false) {
         setRotateCredentials(other.getRotateCredentials());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -760,18 +681,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.StartIPRotationRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 50:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 56:
+              {
+                rotateCredentials_ = input.readBool();
+
+                break;
+              } // case 56
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.StartIPRotationRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -789,7 +753,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4031
+     *     google/container/v1beta1/cluster_service.proto;l=4044
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -817,7 +781,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4031
+     *     google/container/v1beta1/cluster_service.proto;l=4044
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -845,7 +809,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4031
+     *     google/container/v1beta1/cluster_service.proto;l=4044
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -872,7 +836,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4031
+     *     google/container/v1beta1/cluster_service.proto;l=4044
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -895,7 +859,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4031
+     *     google/container/v1beta1/cluster_service.proto;l=4044
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -925,7 +889,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4040
+     *     google/container/v1beta1/cluster_service.proto;l=4053
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -953,7 +917,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4040
+     *     google/container/v1beta1/cluster_service.proto;l=4053
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -981,7 +945,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4040
+     *     google/container/v1beta1/cluster_service.proto;l=4053
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1008,7 +972,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4040
+     *     google/container/v1beta1/cluster_service.proto;l=4053
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1031,7 +995,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4040
+     *     google/container/v1beta1/cluster_service.proto;l=4053
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1060,7 +1024,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4047
+     *     google/container/v1beta1/cluster_service.proto;l=4060
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1087,7 +1051,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4047
+     *     google/container/v1beta1/cluster_service.proto;l=4060
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1114,7 +1078,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4047
+     *     google/container/v1beta1/cluster_service.proto;l=4060
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1140,7 +1104,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4047
+     *     google/container/v1beta1/cluster_service.proto;l=4060
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1162,7 +1126,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.StartIPRotationRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4047
+     *     google/container/v1beta1/cluster_service.proto;l=4060
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1373,7 +1337,18 @@ public StartIPRotationRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new StartIPRotationRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StartIPRotationRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StartIPRotationRequestOrBuilder.java
index 68dbcdd5..9d5d1afe 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StartIPRotationRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StartIPRotationRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface StartIPRotationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4031
+   *     google/container/v1beta1/cluster_service.proto;l=4044
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface StartIPRotationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4031
+   *     google/container/v1beta1/cluster_service.proto;l=4044
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface StartIPRotationRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4040
+   *     google/container/v1beta1/cluster_service.proto;l=4053
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface StartIPRotationRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4040
+   *     google/container/v1beta1/cluster_service.proto;l=4053
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface StartIPRotationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4047
+   *     google/container/v1beta1/cluster_service.proto;l=4060
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface StartIPRotationRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.StartIPRotationRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4047
+   *     google/container/v1beta1/cluster_service.proto;l=4060
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StatusCondition.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StatusCondition.java
index df05dd7d..5a2fa96e 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StatusCondition.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StatusCondition.java
@@ -55,66 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private StatusCondition(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              code_ = rawValue;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              message_ = s;
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              canonicalCode_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_StatusCondition_descriptor;
@@ -397,7 +337,7 @@ private Code(int value) {
    * .google.container.v1beta1.StatusCondition.Code code = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.StatusCondition.code is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4334
+   *     google/container/v1beta1/cluster_service.proto;l=4347
    * @return The enum numeric value on the wire for code.
    */
   @java.lang.Override
@@ -416,7 +356,7 @@ public int getCodeValue() {
    * .google.container.v1beta1.StatusCondition.Code code = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.StatusCondition.code is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4334
+   *     google/container/v1beta1/cluster_service.proto;l=4347
    * @return The code.
    */
   @java.lang.Override
@@ -535,7 +475,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (canonicalCode_ != com.google.rpc.Code.OK.getNumber()) {
       output.writeEnum(3, canonicalCode_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -553,7 +493,7 @@ public int getSerializedSize() {
     if (canonicalCode_ != com.google.rpc.Code.OK.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, canonicalCode_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -572,7 +512,7 @@ public boolean equals(final java.lang.Object obj) {
     if (code_ != other.code_) return false;
     if (!getMessage().equals(other.getMessage())) return false;
     if (canonicalCode_ != other.canonicalCode_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -589,7 +529,7 @@ public int hashCode() {
     hash = (53 * hash) + getMessage().hashCode();
     hash = (37 * hash) + CANONICAL_CODE_FIELD_NUMBER;
     hash = (53 * hash) + canonicalCode_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -719,17 +659,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.StatusCondition.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -830,7 +763,7 @@ public Builder mergeFrom(com.google.container.v1beta1.StatusCondition other) {
       if (other.canonicalCode_ != 0) {
         setCanonicalCodeValue(other.getCanonicalCodeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -845,17 +778,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.StatusCondition parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                code_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                message_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                canonicalCode_ = input.readEnum();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.StatusCondition) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -871,7 +836,7 @@ public Builder mergeFrom(
      * .google.container.v1beta1.StatusCondition.Code code = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.StatusCondition.code is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4334
+     *     google/container/v1beta1/cluster_service.proto;l=4347
      * @return The enum numeric value on the wire for code.
      */
     @java.lang.Override
@@ -890,7 +855,7 @@ public int getCodeValue() {
      * .google.container.v1beta1.StatusCondition.Code code = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.StatusCondition.code is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4334
+     *     google/container/v1beta1/cluster_service.proto;l=4347
      * @param value The enum numeric value on the wire for code to set.
      * @return This builder for chaining.
      */
@@ -912,7 +877,7 @@ public Builder setCodeValue(int value) {
      * .google.container.v1beta1.StatusCondition.Code code = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.StatusCondition.code is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4334
+     *     google/container/v1beta1/cluster_service.proto;l=4347
      * @return The code.
      */
     @java.lang.Override
@@ -936,7 +901,7 @@ public com.google.container.v1beta1.StatusCondition.Code getCode() {
      * .google.container.v1beta1.StatusCondition.Code code = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.StatusCondition.code is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4334
+     *     google/container/v1beta1/cluster_service.proto;l=4347
      * @param value The code to set.
      * @return This builder for chaining.
      */
@@ -961,7 +926,7 @@ public Builder setCode(com.google.container.v1beta1.StatusCondition.Code value)
      * .google.container.v1beta1.StatusCondition.Code code = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.StatusCondition.code is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4334
+     *     google/container/v1beta1/cluster_service.proto;l=4347
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1200,7 +1165,18 @@ public StatusCondition parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new StatusCondition(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StatusConditionOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StatusConditionOrBuilder.java
index 3a28b52f..a982749e 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StatusConditionOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/StatusConditionOrBuilder.java
@@ -34,7 +34,7 @@ public interface StatusConditionOrBuilder
    * .google.container.v1beta1.StatusCondition.Code code = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.StatusCondition.code is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4334
+   *     google/container/v1beta1/cluster_service.proto;l=4347
    * @return The enum numeric value on the wire for code.
    */
   @java.lang.Deprecated
@@ -50,7 +50,7 @@ public interface StatusConditionOrBuilder
    * .google.container.v1beta1.StatusCondition.Code code = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.StatusCondition.code is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4334
+   *     google/container/v1beta1/cluster_service.proto;l=4347
    * @return The code.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/TimeWindow.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/TimeWindow.java
index 5f8de04f..b6d2e7b2 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/TimeWindow.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/TimeWindow.java
@@ -50,95 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private TimeWindow(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.protobuf.Timestamp.Builder subBuilder = null;
-              if (startTime_ != null) {
-                subBuilder = startTime_.toBuilder();
-              }
-              startTime_ =
-                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(startTime_);
-                startTime_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 18:
-            {
-              com.google.protobuf.Timestamp.Builder subBuilder = null;
-              if (endTime_ != null) {
-                subBuilder = endTime_.toBuilder();
-              }
-              endTime_ =
-                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(endTime_);
-                endTime_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1beta1.MaintenanceExclusionOptions.Builder subBuilder = null;
-              if (optionsCase_ == 3) {
-                subBuilder =
-                    ((com.google.container.v1beta1.MaintenanceExclusionOptions) options_)
-                        .toBuilder();
-              }
-              options_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.MaintenanceExclusionOptions.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(
-                    (com.google.container.v1beta1.MaintenanceExclusionOptions) options_);
-                options_ = subBuilder.buildPartial();
-              }
-              optionsCase_ = 3;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_TimeWindow_descriptor;
@@ -374,7 +285,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (optionsCase_ == 3) {
       output.writeMessage(3, (com.google.container.v1beta1.MaintenanceExclusionOptions) options_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -394,7 +305,7 @@ public int getSerializedSize() {
           com.google.protobuf.CodedOutputStream.computeMessageSize(
               3, (com.google.container.v1beta1.MaintenanceExclusionOptions) options_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -426,7 +337,7 @@ public boolean equals(final java.lang.Object obj) {
       case 0:
       default:
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -453,7 +364,7 @@ public int hashCode() {
       case 0:
       default:
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -582,22 +493,18 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.TimeWindow.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
     public Builder clear() {
       super.clear();
+      if (maintenanceExclusionOptionsBuilder_ != null) {
+        maintenanceExclusionOptionsBuilder_.clear();
+      }
       if (startTimeBuilder_ == null) {
         startTime_ = null;
       } else {
@@ -723,7 +630,7 @@ public Builder mergeFrom(com.google.container.v1beta1.TimeWindow other) {
             break;
           }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -738,17 +645,50 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.TimeWindow parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getStartTimeFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(getEndTimeFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(
+                    getMaintenanceExclusionOptionsFieldBuilder().getBuilder(), extensionRegistry);
+                optionsCase_ = 3;
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.TimeWindow) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1408,7 +1348,18 @@ public TimeWindow parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new TimeWindow(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/TpuConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/TpuConfig.java
index ccbb6f67..fba03a11 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/TpuConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/TpuConfig.java
@@ -52,62 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private TpuConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          case 16:
-            {
-              useServiceNetworking_ = input.readBool();
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              ipv4CidrBlock_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_TpuConfig_descriptor;
@@ -231,7 +175,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(ipv4CidrBlock_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, ipv4CidrBlock_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -249,7 +193,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(ipv4CidrBlock_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, ipv4CidrBlock_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -267,7 +211,7 @@ public boolean equals(final java.lang.Object obj) {
     if (getEnabled() != other.getEnabled()) return false;
     if (getUseServiceNetworking() != other.getUseServiceNetworking()) return false;
     if (!getIpv4CidrBlock().equals(other.getIpv4CidrBlock())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -284,7 +228,7 @@ public int hashCode() {
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getUseServiceNetworking());
     hash = (37 * hash) + IPV4_CIDR_BLOCK_FIELD_NUMBER;
     hash = (53 * hash) + getIpv4CidrBlock().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -413,17 +357,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.TpuConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -524,7 +461,7 @@ public Builder mergeFrom(com.google.container.v1beta1.TpuConfig other) {
         ipv4CidrBlock_ = other.ipv4CidrBlock_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -539,17 +476,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.TpuConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                useServiceNetworking_ = input.readBool();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                ipv4CidrBlock_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.TpuConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -795,7 +764,18 @@ public TpuConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new TpuConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateClusterRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateClusterRequest.java
index 1842de2f..773de91a 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateClusterRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateClusterRequest.java
@@ -55,89 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UpdateClusterRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              com.google.container.v1beta1.ClusterUpdate.Builder subBuilder = null;
-              if (update_ != null) {
-                subBuilder = update_.toBuilder();
-              }
-              update_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ClusterUpdate.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(update_);
-                update_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_UpdateClusterRequest_descriptor;
@@ -168,7 +85,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2366
+   *     google/container/v1beta1/cluster_service.proto;l=2376
    * @return The projectId.
    */
   @java.lang.Override
@@ -197,7 +114,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2366
+   *     google/container/v1beta1/cluster_service.proto;l=2376
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -229,7 +146,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2375
+   *     google/container/v1beta1/cluster_service.proto;l=2385
    * @return The zone.
    */
   @java.lang.Override
@@ -258,7 +175,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2375
+   *     google/container/v1beta1/cluster_service.proto;l=2385
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -289,7 +206,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2382
+   *     google/container/v1beta1/cluster_service.proto;l=2392
    * @return The clusterId.
    */
   @java.lang.Override
@@ -317,7 +234,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2382
+   *     google/container/v1beta1/cluster_service.proto;l=2392
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -468,7 +385,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -492,7 +409,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -516,7 +433,7 @@ public boolean equals(final java.lang.Object obj) {
       if (!getUpdate().equals(other.getUpdate())) return false;
     }
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -539,7 +456,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -668,17 +585,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.UpdateClusterRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -803,7 +713,7 @@ public Builder mergeFrom(com.google.container.v1beta1.UpdateClusterRequest other
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -818,18 +728,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.UpdateClusterRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getUpdateFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 34
+            case 42:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.UpdateClusterRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -847,7 +800,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2366
+     *     google/container/v1beta1/cluster_service.proto;l=2376
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -875,7 +828,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2366
+     *     google/container/v1beta1/cluster_service.proto;l=2376
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -903,7 +856,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2366
+     *     google/container/v1beta1/cluster_service.proto;l=2376
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -930,7 +883,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2366
+     *     google/container/v1beta1/cluster_service.proto;l=2376
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -953,7 +906,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2366
+     *     google/container/v1beta1/cluster_service.proto;l=2376
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -983,7 +936,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2375
+     *     google/container/v1beta1/cluster_service.proto;l=2385
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -1011,7 +964,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2375
+     *     google/container/v1beta1/cluster_service.proto;l=2385
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1039,7 +992,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2375
+     *     google/container/v1beta1/cluster_service.proto;l=2385
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1066,7 +1019,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2375
+     *     google/container/v1beta1/cluster_service.proto;l=2385
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1089,7 +1042,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2375
+     *     google/container/v1beta1/cluster_service.proto;l=2385
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1118,7 +1071,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2382
+     *     google/container/v1beta1/cluster_service.proto;l=2392
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1145,7 +1098,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2382
+     *     google/container/v1beta1/cluster_service.proto;l=2392
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1172,7 +1125,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2382
+     *     google/container/v1beta1/cluster_service.proto;l=2392
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1198,7 +1151,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2382
+     *     google/container/v1beta1/cluster_service.proto;l=2392
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1220,7 +1173,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateClusterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2382
+     *     google/container/v1beta1/cluster_service.proto;l=2392
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1582,7 +1535,18 @@ public UpdateClusterRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UpdateClusterRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateClusterRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateClusterRequestOrBuilder.java
index 9e80bd9b..8506ea0d 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateClusterRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateClusterRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface UpdateClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2366
+   *     google/container/v1beta1/cluster_service.proto;l=2376
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface UpdateClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2366
+   *     google/container/v1beta1/cluster_service.proto;l=2376
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface UpdateClusterRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2375
+   *     google/container/v1beta1/cluster_service.proto;l=2385
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface UpdateClusterRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2375
+   *     google/container/v1beta1/cluster_service.proto;l=2385
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface UpdateClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2382
+   *     google/container/v1beta1/cluster_service.proto;l=2392
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface UpdateClusterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateClusterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2382
+   *     google/container/v1beta1/cluster_service.proto;l=2392
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateMasterRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateMasterRequest.java
index ad7113ed..a05abece 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateMasterRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateMasterRequest.java
@@ -56,80 +56,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UpdateMasterRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              masterVersion_ = s;
-              break;
-            }
-          case 58:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_UpdateMasterRequest_descriptor;
@@ -160,7 +86,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2707
+   *     google/container/v1beta1/cluster_service.proto;l=2720
    * @return The projectId.
    */
   @java.lang.Override
@@ -189,7 +115,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2707
+   *     google/container/v1beta1/cluster_service.proto;l=2720
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -221,7 +147,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2716
+   *     google/container/v1beta1/cluster_service.proto;l=2729
    * @return The zone.
    */
   @java.lang.Override
@@ -250,7 +176,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2716
+   *     google/container/v1beta1/cluster_service.proto;l=2729
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -281,7 +207,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2723
+   *     google/container/v1beta1/cluster_service.proto;l=2736
    * @return The clusterId.
    */
   @java.lang.Override
@@ -309,7 +235,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2723
+   *     google/container/v1beta1/cluster_service.proto;l=2736
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -469,7 +395,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 7, name_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -493,7 +419,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, name_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -514,7 +440,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getClusterId().equals(other.getClusterId())) return false;
     if (!getMasterVersion().equals(other.getMasterVersion())) return false;
     if (!getName().equals(other.getName())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -535,7 +461,7 @@ public int hashCode() {
     hash = (53 * hash) + getMasterVersion().hashCode();
     hash = (37 * hash) + NAME_FIELD_NUMBER;
     hash = (53 * hash) + getName().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -664,17 +590,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.UpdateMasterRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -792,7 +711,7 @@ public Builder mergeFrom(com.google.container.v1beta1.UpdateMasterRequest other)
         name_ = other.name_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -807,17 +726,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.UpdateMasterRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                masterVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 58:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 58
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.UpdateMasterRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -835,7 +798,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2707
+     *     google/container/v1beta1/cluster_service.proto;l=2720
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -863,7 +826,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2707
+     *     google/container/v1beta1/cluster_service.proto;l=2720
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -891,7 +854,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2707
+     *     google/container/v1beta1/cluster_service.proto;l=2720
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -918,7 +881,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2707
+     *     google/container/v1beta1/cluster_service.proto;l=2720
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -941,7 +904,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2707
+     *     google/container/v1beta1/cluster_service.proto;l=2720
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -971,7 +934,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2716
+     *     google/container/v1beta1/cluster_service.proto;l=2729
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -999,7 +962,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2716
+     *     google/container/v1beta1/cluster_service.proto;l=2729
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -1027,7 +990,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2716
+     *     google/container/v1beta1/cluster_service.proto;l=2729
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -1054,7 +1017,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2716
+     *     google/container/v1beta1/cluster_service.proto;l=2729
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1077,7 +1040,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2716
+     *     google/container/v1beta1/cluster_service.proto;l=2729
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -1106,7 +1069,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2723
+     *     google/container/v1beta1/cluster_service.proto;l=2736
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -1133,7 +1096,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2723
+     *     google/container/v1beta1/cluster_service.proto;l=2736
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -1160,7 +1123,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2723
+     *     google/container/v1beta1/cluster_service.proto;l=2736
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -1186,7 +1149,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2723
+     *     google/container/v1beta1/cluster_service.proto;l=2736
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1208,7 +1171,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateMasterRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2723
+     *     google/container/v1beta1/cluster_service.proto;l=2736
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -1508,7 +1471,18 @@ public UpdateMasterRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UpdateMasterRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateMasterRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateMasterRequestOrBuilder.java
index 15b97870..4303b499 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateMasterRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateMasterRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface UpdateMasterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2707
+   *     google/container/v1beta1/cluster_service.proto;l=2720
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface UpdateMasterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2707
+   *     google/container/v1beta1/cluster_service.proto;l=2720
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface UpdateMasterRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2716
+   *     google/container/v1beta1/cluster_service.proto;l=2729
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface UpdateMasterRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2716
+   *     google/container/v1beta1/cluster_service.proto;l=2729
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface UpdateMasterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2723
+   *     google/container/v1beta1/cluster_service.proto;l=2736
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface UpdateMasterRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateMasterRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2723
+   *     google/container/v1beta1/cluster_service.proto;l=2736
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateNodePoolRequest.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateNodePoolRequest.java
index 90f82c74..7a61f973 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateNodePoolRequest.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateNodePoolRequest.java
@@ -59,286 +59,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UpdateNodePoolRequest(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              projectId_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              zone_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              clusterId_ = s;
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodePoolId_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              nodeVersion_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              imageType_ = s;
-              break;
-            }
-          case 66:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              name_ = s;
-              break;
-            }
-          case 106:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                locations_ = new com.google.protobuf.LazyStringArrayList();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              locations_.add(s);
-              break;
-            }
-          case 114:
-            {
-              com.google.container.v1beta1.WorkloadMetadataConfig.Builder subBuilder = null;
-              if (workloadMetadataConfig_ != null) {
-                subBuilder = workloadMetadataConfig_.toBuilder();
-              }
-              workloadMetadataConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.WorkloadMetadataConfig.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(workloadMetadataConfig_);
-                workloadMetadataConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 122:
-            {
-              com.google.container.v1beta1.NodePool.UpgradeSettings.Builder subBuilder = null;
-              if (upgradeSettings_ != null) {
-                subBuilder = upgradeSettings_.toBuilder();
-              }
-              upgradeSettings_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodePool.UpgradeSettings.parser(),
-                      extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(upgradeSettings_);
-                upgradeSettings_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 130:
-            {
-              com.google.container.v1beta1.NetworkTags.Builder subBuilder = null;
-              if (tags_ != null) {
-                subBuilder = tags_.toBuilder();
-              }
-              tags_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NetworkTags.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(tags_);
-                tags_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 138:
-            {
-              com.google.container.v1beta1.NodeTaints.Builder subBuilder = null;
-              if (taints_ != null) {
-                subBuilder = taints_.toBuilder();
-              }
-              taints_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeTaints.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(taints_);
-                taints_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 146:
-            {
-              com.google.container.v1beta1.NodeLabels.Builder subBuilder = null;
-              if (labels_ != null) {
-                subBuilder = labels_.toBuilder();
-              }
-              labels_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeLabels.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(labels_);
-                labels_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 154:
-            {
-              com.google.container.v1beta1.LinuxNodeConfig.Builder subBuilder = null;
-              if (linuxNodeConfig_ != null) {
-                subBuilder = linuxNodeConfig_.toBuilder();
-              }
-              linuxNodeConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.LinuxNodeConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(linuxNodeConfig_);
-                linuxNodeConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 162:
-            {
-              com.google.container.v1beta1.NodeKubeletConfig.Builder subBuilder = null;
-              if (kubeletConfig_ != null) {
-                subBuilder = kubeletConfig_.toBuilder();
-              }
-              kubeletConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeKubeletConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(kubeletConfig_);
-                kubeletConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 170:
-            {
-              com.google.container.v1beta1.NodeNetworkConfig.Builder subBuilder = null;
-              if (nodeNetworkConfig_ != null) {
-                subBuilder = nodeNetworkConfig_.toBuilder();
-              }
-              nodeNetworkConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.NodeNetworkConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(nodeNetworkConfig_);
-                nodeNetworkConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 178:
-            {
-              com.google.container.v1beta1.GcfsConfig.Builder subBuilder = null;
-              if (gcfsConfig_ != null) {
-                subBuilder = gcfsConfig_.toBuilder();
-              }
-              gcfsConfig_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.GcfsConfig.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gcfsConfig_);
-                gcfsConfig_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 186:
-            {
-              com.google.container.v1beta1.ConfidentialNodes.Builder subBuilder = null;
-              if (confidentialNodes_ != null) {
-                subBuilder = confidentialNodes_.toBuilder();
-              }
-              confidentialNodes_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ConfidentialNodes.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(confidentialNodes_);
-                confidentialNodes_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 234:
-            {
-              com.google.container.v1beta1.VirtualNIC.Builder subBuilder = null;
-              if (gvnic_ != null) {
-                subBuilder = gvnic_.toBuilder();
-              }
-              gvnic_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.VirtualNIC.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(gvnic_);
-                gvnic_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        locations_ = locations_.getUnmodifiableView();
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_UpdateNodePoolRequest_descriptor;
@@ -369,7 +89,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2400
+   *     google/container/v1beta1/cluster_service.proto;l=2410
    * @return The projectId.
    */
   @java.lang.Override
@@ -398,7 +118,7 @@ public java.lang.String getProjectId() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2400
+   *     google/container/v1beta1/cluster_service.proto;l=2410
    * @return The bytes for projectId.
    */
   @java.lang.Override
@@ -430,7 +150,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2409
+   *     google/container/v1beta1/cluster_service.proto;l=2419
    * @return The zone.
    */
   @java.lang.Override
@@ -459,7 +179,7 @@ public java.lang.String getZone() {
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2409
+   *     google/container/v1beta1/cluster_service.proto;l=2419
    * @return The bytes for zone.
    */
   @java.lang.Override
@@ -490,7 +210,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2416
+   *     google/container/v1beta1/cluster_service.proto;l=2426
    * @return The clusterId.
    */
   @java.lang.Override
@@ -518,7 +238,7 @@ public java.lang.String getClusterId() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2416
+   *     google/container/v1beta1/cluster_service.proto;l=2426
    * @return The bytes for clusterId.
    */
   @java.lang.Override
@@ -549,7 +269,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2423
+   *     google/container/v1beta1/cluster_service.proto;l=2433
    * @return The nodePoolId.
    */
   @java.lang.Override
@@ -577,7 +297,7 @@ public java.lang.String getNodePoolId() {
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2423
+   *     google/container/v1beta1/cluster_service.proto;l=2433
    * @return The bytes for nodePoolId.
    */
   @java.lang.Override
@@ -1381,6 +1101,54 @@ public com.google.container.v1beta1.VirtualNICOrBuilder getGvnicOrBuilder() {
     return getGvnic();
   }
 
+  public static final int LOGGING_CONFIG_FIELD_NUMBER = 32;
+  private com.google.container.v1beta1.NodePoolLoggingConfig loggingConfig_;
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasLoggingConfig() {
+    return loggingConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+   *
+   * @return The loggingConfig.
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.NodePoolLoggingConfig getLoggingConfig() {
+    return loggingConfig_ == null
+        ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+        : loggingConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+   */
+  @java.lang.Override
+  public com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+    return getLoggingConfig();
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -1452,7 +1220,10 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (gvnic_ != null) {
       output.writeMessage(29, getGvnic());
     }
-    unknownFields.writeTo(output);
+    if (loggingConfig_ != null) {
+      output.writeMessage(32, getLoggingConfig());
+    }
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1524,7 +1295,10 @@ public int getSerializedSize() {
     if (gvnic_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(29, getGvnic());
     }
-    size += unknownFields.getSerializedSize();
+    if (loggingConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(32, getLoggingConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1592,7 +1366,11 @@ public boolean equals(final java.lang.Object obj) {
     if (hasGvnic()) {
       if (!getGvnic().equals(other.getGvnic())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (hasLoggingConfig() != other.hasLoggingConfig()) return false;
+    if (hasLoggingConfig()) {
+      if (!getLoggingConfig().equals(other.getLoggingConfig())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1665,7 +1443,11 @@ public int hashCode() {
       hash = (37 * hash) + GVNIC_FIELD_NUMBER;
       hash = (53 * hash) + getGvnic().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    if (hasLoggingConfig()) {
+      hash = (37 * hash) + LOGGING_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getLoggingConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1794,17 +1576,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.UpdateNodePoolRequest.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -1892,6 +1667,12 @@ public Builder clear() {
         gvnic_ = null;
         gvnicBuilder_ = null;
       }
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
       return this;
     }
 
@@ -1987,6 +1768,11 @@ public com.google.container.v1beta1.UpdateNodePoolRequest buildPartial() {
       } else {
         result.gvnic_ = gvnicBuilder_.build();
       }
+      if (loggingConfigBuilder_ == null) {
+        result.loggingConfig_ = loggingConfig_;
+      } else {
+        result.loggingConfig_ = loggingConfigBuilder_.build();
+      }
       onBuilt();
       return result;
     }
@@ -2108,7 +1894,10 @@ public Builder mergeFrom(com.google.container.v1beta1.UpdateNodePoolRequest othe
       if (other.hasGvnic()) {
         mergeGvnic(other.getGvnic());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      if (other.hasLoggingConfig()) {
+        mergeLoggingConfig(other.getLoggingConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -2123,18 +1912,155 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.UpdateNodePoolRequest parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                projectId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                zone_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                clusterId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                nodePoolId_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                nodeVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                imageType_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            case 66:
+              {
+                name_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 66
+            case 106:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureLocationsIsMutable();
+                locations_.add(s);
+                break;
+              } // case 106
+            case 114:
+              {
+                input.readMessage(
+                    getWorkloadMetadataConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 114
+            case 122:
+              {
+                input.readMessage(getUpgradeSettingsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 122
+            case 130:
+              {
+                input.readMessage(getTagsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 130
+            case 138:
+              {
+                input.readMessage(getTaintsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 138
+            case 146:
+              {
+                input.readMessage(getLabelsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 146
+            case 154:
+              {
+                input.readMessage(getLinuxNodeConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 154
+            case 162:
+              {
+                input.readMessage(getKubeletConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 162
+            case 170:
+              {
+                input.readMessage(
+                    getNodeNetworkConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 170
+            case 178:
+              {
+                input.readMessage(getGcfsConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 178
+            case 186:
+              {
+                input.readMessage(
+                    getConfidentialNodesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 186
+            case 234:
+              {
+                input.readMessage(getGvnicFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 234
+            case 258:
+              {
+                input.readMessage(getLoggingConfigFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 258
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.UpdateNodePoolRequest) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2154,7 +2080,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2400
+     *     google/container/v1beta1/cluster_service.proto;l=2410
      * @return The projectId.
      */
     @java.lang.Deprecated
@@ -2182,7 +2108,7 @@ public java.lang.String getProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2400
+     *     google/container/v1beta1/cluster_service.proto;l=2410
      * @return The bytes for projectId.
      */
     @java.lang.Deprecated
@@ -2210,7 +2136,7 @@ public com.google.protobuf.ByteString getProjectIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2400
+     *     google/container/v1beta1/cluster_service.proto;l=2410
      * @param value The projectId to set.
      * @return This builder for chaining.
      */
@@ -2237,7 +2163,7 @@ public Builder setProjectId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2400
+     *     google/container/v1beta1/cluster_service.proto;l=2410
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2260,7 +2186,7 @@ public Builder clearProjectId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.project_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2400
+     *     google/container/v1beta1/cluster_service.proto;l=2410
      * @param value The bytes for projectId to set.
      * @return This builder for chaining.
      */
@@ -2290,7 +2216,7 @@ public Builder setProjectIdBytes(com.google.protobuf.ByteString value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2409
+     *     google/container/v1beta1/cluster_service.proto;l=2419
      * @return The zone.
      */
     @java.lang.Deprecated
@@ -2318,7 +2244,7 @@ public java.lang.String getZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2409
+     *     google/container/v1beta1/cluster_service.proto;l=2419
      * @return The bytes for zone.
      */
     @java.lang.Deprecated
@@ -2346,7 +2272,7 @@ public com.google.protobuf.ByteString getZoneBytes() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2409
+     *     google/container/v1beta1/cluster_service.proto;l=2419
      * @param value The zone to set.
      * @return This builder for chaining.
      */
@@ -2373,7 +2299,7 @@ public Builder setZone(java.lang.String value) {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2409
+     *     google/container/v1beta1/cluster_service.proto;l=2419
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2396,7 +2322,7 @@ public Builder clearZone() {
      * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.zone is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2409
+     *     google/container/v1beta1/cluster_service.proto;l=2419
      * @param value The bytes for zone to set.
      * @return This builder for chaining.
      */
@@ -2425,7 +2351,7 @@ public Builder setZoneBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2416
+     *     google/container/v1beta1/cluster_service.proto;l=2426
      * @return The clusterId.
      */
     @java.lang.Deprecated
@@ -2452,7 +2378,7 @@ public java.lang.String getClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2416
+     *     google/container/v1beta1/cluster_service.proto;l=2426
      * @return The bytes for clusterId.
      */
     @java.lang.Deprecated
@@ -2479,7 +2405,7 @@ public com.google.protobuf.ByteString getClusterIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2416
+     *     google/container/v1beta1/cluster_service.proto;l=2426
      * @param value The clusterId to set.
      * @return This builder for chaining.
      */
@@ -2505,7 +2431,7 @@ public Builder setClusterId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2416
+     *     google/container/v1beta1/cluster_service.proto;l=2426
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2527,7 +2453,7 @@ public Builder clearClusterId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.cluster_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2416
+     *     google/container/v1beta1/cluster_service.proto;l=2426
      * @param value The bytes for clusterId to set.
      * @return This builder for chaining.
      */
@@ -2556,7 +2482,7 @@ public Builder setClusterIdBytes(com.google.protobuf.ByteString value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2423
+     *     google/container/v1beta1/cluster_service.proto;l=2433
      * @return The nodePoolId.
      */
     @java.lang.Deprecated
@@ -2583,7 +2509,7 @@ public java.lang.String getNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2423
+     *     google/container/v1beta1/cluster_service.proto;l=2433
      * @return The bytes for nodePoolId.
      */
     @java.lang.Deprecated
@@ -2610,7 +2536,7 @@ public com.google.protobuf.ByteString getNodePoolIdBytes() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2423
+     *     google/container/v1beta1/cluster_service.proto;l=2433
      * @param value The nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -2636,7 +2562,7 @@ public Builder setNodePoolId(java.lang.String value) {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2423
+     *     google/container/v1beta1/cluster_service.proto;l=2433
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -2658,7 +2584,7 @@ public Builder clearNodePoolId() {
      * 
      *
      * @deprecated google.container.v1beta1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=2423
+     *     google/container/v1beta1/cluster_service.proto;l=2433
      * @param value The bytes for nodePoolId to set.
      * @return This builder for chaining.
      */
@@ -5358,6 +5284,192 @@ public com.google.container.v1beta1.VirtualNICOrBuilder getGvnicOrBuilder() {
       return gvnicBuilder_;
     }
 
+    private com.google.container.v1beta1.NodePoolLoggingConfig loggingConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1beta1.NodePoolLoggingConfig,
+            com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>
+        loggingConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+     *
+     * @return Whether the loggingConfig field is set.
+     */
+    public boolean hasLoggingConfig() {
+      return loggingConfigBuilder_ != null || loggingConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+     *
+     * @return The loggingConfig.
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfig getLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        return loggingConfig_ == null
+            ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      } else {
+        return loggingConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public Builder setLoggingConfig(com.google.container.v1beta1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        loggingConfig_ = value;
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public Builder setLoggingConfig(
+        com.google.container.v1beta1.NodePoolLoggingConfig.Builder builderForValue) {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = builderForValue.build();
+        onChanged();
+      } else {
+        loggingConfigBuilder_.setMessage(builderForValue.build());
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public Builder mergeLoggingConfig(com.google.container.v1beta1.NodePoolLoggingConfig value) {
+      if (loggingConfigBuilder_ == null) {
+        if (loggingConfig_ != null) {
+          loggingConfig_ =
+              com.google.container.v1beta1.NodePoolLoggingConfig.newBuilder(loggingConfig_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          loggingConfig_ = value;
+        }
+        onChanged();
+      } else {
+        loggingConfigBuilder_.mergeFrom(value);
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public Builder clearLoggingConfig() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfig_ = null;
+        onChanged();
+      } else {
+        loggingConfig_ = null;
+        loggingConfigBuilder_ = null;
+      }
+
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfig.Builder getLoggingConfigBuilder() {
+
+      onChanged();
+      return getLoggingConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+     */
+    public com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder() {
+      if (loggingConfigBuilder_ != null) {
+        return loggingConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return loggingConfig_ == null
+            ? com.google.container.v1beta1.NodePoolLoggingConfig.getDefaultInstance()
+            : loggingConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Logging configuration.
+     * 

+     *
+     * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.container.v1beta1.NodePoolLoggingConfig,
+            com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+            com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>
+        getLoggingConfigFieldBuilder() {
+      if (loggingConfigBuilder_ == null) {
+        loggingConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.container.v1beta1.NodePoolLoggingConfig,
+                com.google.container.v1beta1.NodePoolLoggingConfig.Builder,
+                com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder>(
+                getLoggingConfig(), getParentForChildren(), isClean());
+        loggingConfig_ = null;
+      }
+      return loggingConfigBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
@@ -5390,7 +5502,18 @@ public UpdateNodePoolRequest parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UpdateNodePoolRequest(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateNodePoolRequestOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateNodePoolRequestOrBuilder.java
index 2516e4e7..81f4f8f7 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateNodePoolRequestOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpdateNodePoolRequestOrBuilder.java
@@ -36,7 +36,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2400
+   *     google/container/v1beta1/cluster_service.proto;l=2410
    * @return The projectId.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.project_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2400
+   *     google/container/v1beta1/cluster_service.proto;l=2410
    * @return The bytes for projectId.
    */
   @java.lang.Deprecated
@@ -73,7 +73,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2409
+   *     google/container/v1beta1/cluster_service.proto;l=2419
    * @return The zone.
    */
   @java.lang.Deprecated
@@ -91,7 +91,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * string zone = 2 [deprecated = true, (.google.api.field_behavior) = REQUIRED];
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.zone is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2409
+   *     google/container/v1beta1/cluster_service.proto;l=2419
    * @return The bytes for zone.
    */
   @java.lang.Deprecated
@@ -109,7 +109,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2416
+   *     google/container/v1beta1/cluster_service.proto;l=2426
    * @return The clusterId.
    */
   @java.lang.Deprecated
@@ -126,7 +126,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.cluster_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2416
+   *     google/container/v1beta1/cluster_service.proto;l=2426
    * @return The bytes for clusterId.
    */
   @java.lang.Deprecated
@@ -144,7 +144,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2423
+   *     google/container/v1beta1/cluster_service.proto;l=2433
    * @return The nodePoolId.
    */
   @java.lang.Deprecated
@@ -161,7 +161,7 @@ public interface UpdateNodePoolRequestOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.UpdateNodePoolRequest.node_pool_id is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=2423
+   *     google/container/v1beta1/cluster_service.proto;l=2433
    * @return The bytes for nodePoolId.
    */
   @java.lang.Deprecated
@@ -734,4 +734,39 @@ public interface UpdateNodePoolRequestOrBuilder
    * .google.container.v1beta1.VirtualNIC gvnic = 29;
    */
   com.google.container.v1beta1.VirtualNICOrBuilder getGvnicOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+   *
+   * @return Whether the loggingConfig field is set.
+   */
+  boolean hasLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+   *
+   * @return The loggingConfig.
+   */
+  com.google.container.v1beta1.NodePoolLoggingConfig getLoggingConfig();
+  /**
+   *
+   *
+   * 
+   * Logging configuration.
+   * 

+   *
+   * .google.container.v1beta1.NodePoolLoggingConfig logging_config = 32;
+   */
+  com.google.container.v1beta1.NodePoolLoggingConfigOrBuilder getLoggingConfigOrBuilder();
 }
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpgradeAvailableEvent.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpgradeAvailableEvent.java
index e96719c5..640eafbf 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpgradeAvailableEvent.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpgradeAvailableEvent.java
@@ -55,98 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UpgradeAvailableEvent(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              version_ = s;
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              resourceType_ = rawValue;
-              break;
-            }
-          case 26:
-            {
-              com.google.container.v1beta1.ReleaseChannel.Builder subBuilder = null;
-              if (releaseChannel_ != null) {
-                subBuilder = releaseChannel_.toBuilder();
-              }
-              releaseChannel_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.ReleaseChannel.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(releaseChannel_);
-                releaseChannel_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              resource_ = s;
-              break;
-            }
-          case 42:
-            {
-              com.google.container.v1beta1.WindowsVersions.Builder subBuilder = null;
-              if (windowsVersions_ != null) {
-                subBuilder = windowsVersions_.toBuilder();
-              }
-              windowsVersions_ =
-                  input.readMessage(
-                      com.google.container.v1beta1.WindowsVersions.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(windowsVersions_);
-                windowsVersions_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_UpgradeAvailableEvent_descriptor;
@@ -428,7 +336,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (windowsVersions_ != null) {
       output.writeMessage(5, getWindowsVersions());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -454,7 +362,7 @@ public int getSerializedSize() {
     if (windowsVersions_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getWindowsVersions());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -481,7 +389,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasWindowsVersions()) {
       if (!getWindowsVersions().equals(other.getWindowsVersions())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -506,7 +414,7 @@ public int hashCode() {
       hash = (37 * hash) + WINDOWS_VERSIONS_FIELD_NUMBER;
       hash = (53 * hash) + getWindowsVersions().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -636,17 +544,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.UpgradeAvailableEvent.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -777,7 +678,7 @@ public Builder mergeFrom(com.google.container.v1beta1.UpgradeAvailableEvent othe
       if (other.hasWindowsVersions()) {
         mergeWindowsVersions(other.getWindowsVersions());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -792,18 +693,61 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.UpgradeAvailableEvent parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                version_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 16:
+              {
+                resourceType_ = input.readEnum();
+
+                break;
+              } // case 16
+            case 26:
+              {
+                input.readMessage(getReleaseChannelFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 34:
+              {
+                resource_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                input.readMessage(getWindowsVersionsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.UpgradeAvailableEvent) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1530,7 +1474,18 @@ public UpgradeAvailableEvent parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UpgradeAvailableEvent(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpgradeEvent.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpgradeEvent.java
index 1993884f..ec33f537 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpgradeEvent.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UpgradeEvent.java
@@ -57,95 +57,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UpgradeEvent(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              resourceType_ = rawValue;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              operation_ = s;
-              break;
-            }
-          case 26:
-            {
-              com.google.protobuf.Timestamp.Builder subBuilder = null;
-              if (operationStartTime_ != null) {
-                subBuilder = operationStartTime_.toBuilder();
-              }
-              operationStartTime_ =
-                  input.readMessage(com.google.protobuf.Timestamp.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(operationStartTime_);
-                operationStartTime_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          case 34:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              currentVersion_ = s;
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              targetVersion_ = s;
-              break;
-            }
-          case 50:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              resource_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_UpgradeEvent_descriptor;
@@ -477,7 +388,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resource_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 6, resource_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -506,7 +417,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(resource_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(6, resource_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -531,7 +442,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getCurrentVersion().equals(other.getCurrentVersion())) return false;
     if (!getTargetVersion().equals(other.getTargetVersion())) return false;
     if (!getResource().equals(other.getResource())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -556,7 +467,7 @@ public int hashCode() {
     hash = (53 * hash) + getTargetVersion().hashCode();
     hash = (37 * hash) + RESOURCE_FIELD_NUMBER;
     hash = (53 * hash) + getResource().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -686,17 +597,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.UpgradeEvent.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -826,7 +730,7 @@ public Builder mergeFrom(com.google.container.v1beta1.UpgradeEvent other) {
         resource_ = other.resource_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -841,17 +745,68 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.UpgradeEvent parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                resourceType_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 18:
+              {
+                operation_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(
+                    getOperationStartTimeFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 26
+            case 34:
+              {
+                currentVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 34
+            case 42:
+              {
+                targetVersion_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            case 50:
+              {
+                resource_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 50
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.UpgradeEvent) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1594,7 +1549,18 @@ public UpgradeEvent parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UpgradeEvent(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UsableSubnetwork.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UsableSubnetwork.java
index 1296a087..6dd934bd 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UsableSubnetwork.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UsableSubnetwork.java
@@ -57,91 +57,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UsableSubnetwork(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              subnetwork_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              network_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              ipCidrRange_ = s;
-              break;
-            }
-          case 34:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                secondaryIpRanges_ =
-                    new java.util.ArrayList<
-                        com.google.container.v1beta1.UsableSubnetworkSecondaryRange>();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              secondaryIpRanges_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.UsableSubnetworkSecondaryRange.parser(),
-                      extensionRegistry));
-              break;
-            }
-          case 42:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              statusMessage_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        secondaryIpRanges_ = java.util.Collections.unmodifiableList(secondaryIpRanges_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_UsableSubnetwork_descriptor;
@@ -476,7 +391,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(statusMessage_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 5, statusMessage_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -501,7 +416,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(statusMessage_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, statusMessage_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -522,7 +437,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getIpCidrRange().equals(other.getIpCidrRange())) return false;
     if (!getSecondaryIpRangesList().equals(other.getSecondaryIpRangesList())) return false;
     if (!getStatusMessage().equals(other.getStatusMessage())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -545,7 +460,7 @@ public int hashCode() {
     }
     hash = (37 * hash) + STATUS_MESSAGE_FIELD_NUMBER;
     hash = (53 * hash) + getStatusMessage().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -675,19 +590,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.UsableSubnetwork.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getSecondaryIpRangesFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -701,10 +607,11 @@ public Builder clear() {
 
       if (secondaryIpRangesBuilder_ == null) {
         secondaryIpRanges_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        secondaryIpRanges_ = null;
         secondaryIpRangesBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       statusMessage_ = "";
 
       return this;
@@ -840,7 +747,7 @@ public Builder mergeFrom(com.google.container.v1beta1.UsableSubnetwork other) {
         statusMessage_ = other.statusMessage_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -855,17 +762,69 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.UsableSubnetwork parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                subnetwork_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                network_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                ipCidrRange_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            case 34:
+              {
+                com.google.container.v1beta1.UsableSubnetworkSecondaryRange m =
+                    input.readMessage(
+                        com.google.container.v1beta1.UsableSubnetworkSecondaryRange.parser(),
+                        extensionRegistry);
+                if (secondaryIpRangesBuilder_ == null) {
+                  ensureSecondaryIpRangesIsMutable();
+                  secondaryIpRanges_.add(m);
+                } else {
+                  secondaryIpRangesBuilder_.addMessage(m);
+                }
+                break;
+              } // case 34
+            case 42:
+              {
+                statusMessage_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 42
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.UsableSubnetwork) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1759,7 +1718,18 @@ public UsableSubnetwork parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UsableSubnetwork(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UsableSubnetworkSecondaryRange.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UsableSubnetworkSecondaryRange.java
index 7651efe7..b2ac95d0 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UsableSubnetworkSecondaryRange.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/UsableSubnetworkSecondaryRange.java
@@ -55,66 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private UsableSubnetworkSecondaryRange(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              rangeName_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              ipCidrRange_ = s;
-              break;
-            }
-          case 24:
-            {
-              int rawValue = input.readEnum();
-
-              status_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_UsableSubnetworkSecondaryRange_descriptor;
@@ -503,7 +443,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         != com.google.container.v1beta1.UsableSubnetworkSecondaryRange.Status.UNKNOWN.getNumber()) {
       output.writeEnum(3, status_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -522,7 +462,7 @@ public int getSerializedSize() {
         != com.google.container.v1beta1.UsableSubnetworkSecondaryRange.Status.UNKNOWN.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, status_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -541,7 +481,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getRangeName().equals(other.getRangeName())) return false;
     if (!getIpCidrRange().equals(other.getIpCidrRange())) return false;
     if (status_ != other.status_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -558,7 +498,7 @@ public int hashCode() {
     hash = (53 * hash) + getIpCidrRange().hashCode();
     hash = (37 * hash) + STATUS_FIELD_NUMBER;
     hash = (53 * hash) + status_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -688,17 +628,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.UsableSubnetworkSecondaryRange.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -801,7 +734,7 @@ public Builder mergeFrom(com.google.container.v1beta1.UsableSubnetworkSecondaryR
       if (other.status_ != 0) {
         setStatusValue(other.getStatusValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -816,18 +749,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.UsableSubnetworkSecondaryRange parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                rangeName_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                ipCidrRange_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 24:
+              {
+                status_ = input.readEnum();
+
+                break;
+              } // case 24
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.UsableSubnetworkSecondaryRange) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -1174,7 +1138,18 @@ public UsableSubnetworkSecondaryRange parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new UsableSubnetworkSecondaryRange(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/VerticalPodAutoscaling.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/VerticalPodAutoscaling.java
index 98fa51c6..6252b0dc 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/VerticalPodAutoscaling.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/VerticalPodAutoscaling.java
@@ -52,50 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private VerticalPodAutoscaling(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_VerticalPodAutoscaling_descriptor;
@@ -146,7 +102,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -158,7 +114,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -175,7 +131,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.VerticalPodAutoscaling) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -188,7 +144,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -319,17 +275,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.VerticalPodAutoscaling.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -418,7 +367,7 @@ public Builder mergeFrom(com.google.container.v1beta1.VerticalPodAutoscaling oth
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -433,18 +382,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.VerticalPodAutoscaling parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.VerticalPodAutoscaling) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -532,7 +500,18 @@ public VerticalPodAutoscaling parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new VerticalPodAutoscaling(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/VirtualNIC.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/VirtualNIC.java
index 0470ed93..e19f4cc4 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/VirtualNIC.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/VirtualNIC.java
@@ -50,50 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private VirtualNIC(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              enabled_ = input.readBool();
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_VirtualNIC_descriptor;
@@ -144,7 +100,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enabled_ != false) {
       output.writeBool(1, enabled_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -156,7 +112,7 @@ public int getSerializedSize() {
     if (enabled_ != false) {
       size += com.google.protobuf.CodedOutputStream.computeBoolSize(1, enabled_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -172,7 +128,7 @@ public boolean equals(final java.lang.Object obj) {
     com.google.container.v1beta1.VirtualNIC other = (com.google.container.v1beta1.VirtualNIC) obj;
 
     if (getEnabled() != other.getEnabled()) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -185,7 +141,7 @@ public int hashCode() {
     hash = (19 * hash) + getDescriptor().hashCode();
     hash = (37 * hash) + ENABLED_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnabled());
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -314,17 +270,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.VirtualNIC.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -412,7 +361,7 @@ public Builder mergeFrom(com.google.container.v1beta1.VirtualNIC other) {
       if (other.getEnabled() != false) {
         setEnabled(other.getEnabled());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -427,17 +376,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.VirtualNIC parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                enabled_ = input.readBool();
+
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.VirtualNIC) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -525,7 +494,18 @@ public VirtualNIC parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new VirtualNIC(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WindowsVersions.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WindowsVersions.java
index 73d5e64d..f88d46d8 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WindowsVersions.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WindowsVersions.java
@@ -52,63 +52,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private WindowsVersions(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              if (!((mutable_bitField0_ & 0x00000001) != 0)) {
-                windowsVersions_ =
-                    new java.util.ArrayList<
-                        com.google.container.v1beta1.WindowsVersions.WindowsVersion>();
-                mutable_bitField0_ |= 0x00000001;
-              }
-              windowsVersions_.add(
-                  input.readMessage(
-                      com.google.container.v1beta1.WindowsVersions.WindowsVersion.parser(),
-                      extensionRegistry));
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      if (((mutable_bitField0_ & 0x00000001) != 0)) {
-        windowsVersions_ = java.util.Collections.unmodifiableList(windowsVersions_);
-      }
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_WindowsVersions_descriptor;
@@ -249,74 +192,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
       return this.unknownFields;
     }
 
-    private WindowsVersion(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws com.google.protobuf.InvalidProtocolBufferException {
-      this();
-      if (extensionRegistry == null) {
-        throw new java.lang.NullPointerException();
-      }
-      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-          com.google.protobuf.UnknownFieldSet.newBuilder();
-      try {
-        boolean done = false;
-        while (!done) {
-          int tag = input.readTag();
-          switch (tag) {
-            case 0:
-              done = true;
-              break;
-            case 10:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                imageType_ = s;
-                break;
-              }
-            case 18:
-              {
-                java.lang.String s = input.readStringRequireUtf8();
-
-                osVersion_ = s;
-                break;
-              }
-            case 26:
-              {
-                com.google.type.Date.Builder subBuilder = null;
-                if (supportEndDate_ != null) {
-                  subBuilder = supportEndDate_.toBuilder();
-                }
-                supportEndDate_ =
-                    input.readMessage(com.google.type.Date.parser(), extensionRegistry);
-                if (subBuilder != null) {
-                  subBuilder.mergeFrom(supportEndDate_);
-                  supportEndDate_ = subBuilder.buildPartial();
-                }
-
-                break;
-              }
-            default:
-              {
-                if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                  done = true;
-                }
-                break;
-              }
-          }
-        }
-      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        throw e.setUnfinishedMessage(this);
-      } catch (com.google.protobuf.UninitializedMessageException e) {
-        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-      } catch (java.io.IOException e) {
-        throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-      } finally {
-        this.unknownFields = unknownFields.build();
-        makeExtensionsImmutable();
-      }
-    }
-
     public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       return com.google.container.v1beta1.ClusterServiceProto
           .internal_static_google_container_v1beta1_WindowsVersions_WindowsVersion_descriptor;
@@ -499,7 +374,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (supportEndDate_ != null) {
         output.writeMessage(3, getSupportEndDate());
       }
-      unknownFields.writeTo(output);
+      getUnknownFields().writeTo(output);
     }
 
     @java.lang.Override
@@ -517,7 +392,7 @@ public int getSerializedSize() {
       if (supportEndDate_ != null) {
         size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getSupportEndDate());
       }
-      size += unknownFields.getSerializedSize();
+      size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
     }
@@ -539,7 +414,7 @@ public boolean equals(final java.lang.Object obj) {
       if (hasSupportEndDate()) {
         if (!getSupportEndDate().equals(other.getSupportEndDate())) return false;
       }
-      if (!unknownFields.equals(other.unknownFields)) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
 
@@ -558,7 +433,7 @@ public int hashCode() {
         hash = (37 * hash) + SUPPORT_END_DATE_FIELD_NUMBER;
         hash = (53 * hash) + getSupportEndDate().hashCode();
       }
-      hash = (29 * hash) + unknownFields.hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
@@ -690,17 +565,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
       }
 
       // Construct using com.google.container.v1beta1.WindowsVersions.WindowsVersion.newBuilder()
-      private Builder() {
-        maybeForceBuilderInitialization();
-      }
+      private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         super(parent);
-        maybeForceBuilderInitialization();
-      }
-
-      private void maybeForceBuilderInitialization() {
-        if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
       }
 
       @java.lang.Override
@@ -815,7 +683,7 @@ public Builder mergeFrom(com.google.container.v1beta1.WindowsVersions.WindowsVer
         if (other.hasSupportEndDate()) {
           mergeSupportEndDate(other.getSupportEndDate());
         }
-        this.mergeUnknownFields(other.unknownFields);
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
@@ -830,19 +698,50 @@ public Builder mergeFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
-        com.google.container.v1beta1.WindowsVersions.WindowsVersion parsedMessage = null;
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
         try {
-          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  imageType_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 10
+              case 18:
+                {
+                  osVersion_ = input.readStringRequireUtf8();
+
+                  break;
+                } // case 18
+              case 26:
+                {
+                  input.readMessage(
+                      getSupportEndDateFieldBuilder().getBuilder(), extensionRegistry);
+
+                  break;
+                } // case 26
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
         } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          parsedMessage =
-              (com.google.container.v1beta1.WindowsVersions.WindowsVersion)
-                  e.getUnfinishedMessage();
           throw e.unwrapIOException();
         } finally {
-          if (parsedMessage != null) {
-            mergeFrom(parsedMessage);
-          }
-        }
+          onChanged();
+        } // finally
         return this;
       }
 
@@ -1271,7 +1170,19 @@ public WindowsVersion parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
-            return new WindowsVersion(input, extensionRegistry);
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
           }
         };
 
@@ -1385,7 +1296,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < windowsVersions_.size(); i++) {
       output.writeMessage(1, windowsVersions_.get(i));
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -1397,7 +1308,7 @@ public int getSerializedSize() {
     for (int i = 0; i < windowsVersions_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, windowsVersions_.get(i));
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -1414,7 +1325,7 @@ public boolean equals(final java.lang.Object obj) {
         (com.google.container.v1beta1.WindowsVersions) obj;
 
     if (!getWindowsVersionsList().equals(other.getWindowsVersionsList())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -1429,7 +1340,7 @@ public int hashCode() {
       hash = (37 * hash) + WINDOWS_VERSIONS_FIELD_NUMBER;
       hash = (53 * hash) + getWindowsVersionsList().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -1558,19 +1469,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.WindowsVersions.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
-        getWindowsVersionsFieldBuilder();
-      }
     }
 
     @java.lang.Override
@@ -1578,10 +1480,11 @@ public Builder clear() {
       super.clear();
       if (windowsVersionsBuilder_ == null) {
         windowsVersions_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000001);
       } else {
+        windowsVersions_ = null;
         windowsVersionsBuilder_.clear();
       }
+      bitField0_ = (bitField0_ & ~0x00000001);
       return this;
     }
 
@@ -1695,7 +1598,7 @@ public Builder mergeFrom(com.google.container.v1beta1.WindowsVersions other) {
           }
         }
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -1710,17 +1613,45 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.WindowsVersions parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                com.google.container.v1beta1.WindowsVersions.WindowsVersion m =
+                    input.readMessage(
+                        com.google.container.v1beta1.WindowsVersions.WindowsVersion.parser(),
+                        extensionRegistry);
+                if (windowsVersionsBuilder_ == null) {
+                  ensureWindowsVersionsIsMutable();
+                  windowsVersions_.add(m);
+                } else {
+                  windowsVersionsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.WindowsVersions) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -2147,7 +2078,18 @@ public WindowsVersions parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new WindowsVersions(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadALTSConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadALTSConfig.java
index e06c02c1..6a1cab54 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadALTSConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadALTSConfig.java
@@ -50,60 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private WorkloadALTSConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.protobuf.BoolValue.Builder subBuilder = null;
-              if (enableAlts_ != null) {
-                subBuilder = enableAlts_.toBuilder();
-              }
-              enableAlts_ =
-                  input.readMessage(com.google.protobuf.BoolValue.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(enableAlts_);
-                enableAlts_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_WorkloadALTSConfig_descriptor;
@@ -194,7 +140,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enableAlts_ != null) {
       output.writeMessage(1, getEnableAlts());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -206,7 +152,7 @@ public int getSerializedSize() {
     if (enableAlts_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getEnableAlts());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -226,7 +172,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasEnableAlts()) {
       if (!getEnableAlts().equals(other.getEnableAlts())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -241,7 +187,7 @@ public int hashCode() {
       hash = (37 * hash) + ENABLE_ALTS_FIELD_NUMBER;
       hash = (53 * hash) + getEnableAlts().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -370,17 +316,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.WorkloadALTSConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -477,7 +416,7 @@ public Builder mergeFrom(com.google.container.v1beta1.WorkloadALTSConfig other)
       if (other.hasEnableAlts()) {
         mergeEnableAlts(other.getEnableAlts());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -492,17 +431,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.WorkloadALTSConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getEnableAltsFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.WorkloadALTSConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -757,7 +716,18 @@ public WorkloadALTSConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new WorkloadALTSConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadCertificates.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadCertificates.java
index b358c00d..5d35d209 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadCertificates.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadCertificates.java
@@ -50,60 +50,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private WorkloadCertificates(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              com.google.protobuf.BoolValue.Builder subBuilder = null;
-              if (enableCertificates_ != null) {
-                subBuilder = enableCertificates_.toBuilder();
-              }
-              enableCertificates_ =
-                  input.readMessage(com.google.protobuf.BoolValue.parser(), extensionRegistry);
-              if (subBuilder != null) {
-                subBuilder.mergeFrom(enableCertificates_);
-                enableCertificates_ = subBuilder.buildPartial();
-              }
-
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_WorkloadCertificates_descriptor;
@@ -202,7 +148,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (enableCertificates_ != null) {
       output.writeMessage(1, getEnableCertificates());
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -214,7 +160,7 @@ public int getSerializedSize() {
     if (enableCertificates_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getEnableCertificates());
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -234,7 +180,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasEnableCertificates()) {
       if (!getEnableCertificates().equals(other.getEnableCertificates())) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -249,7 +195,7 @@ public int hashCode() {
       hash = (37 * hash) + ENABLE_CERTIFICATES_FIELD_NUMBER;
       hash = (53 * hash) + getEnableCertificates().hashCode();
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -378,17 +324,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.WorkloadCertificates.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -485,7 +424,7 @@ public Builder mergeFrom(com.google.container.v1beta1.WorkloadCertificates other
       if (other.hasEnableCertificates()) {
         mergeEnableCertificates(other.getEnableCertificates());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -500,18 +439,38 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.WorkloadCertificates parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getEnableCertificatesFieldBuilder().getBuilder(), extensionRegistry);
+
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.WorkloadCertificates) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -786,7 +745,18 @@ public WorkloadCertificates parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new WorkloadCertificates(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadConfig.java
index 8ddebca1..1496b3a5 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadConfig.java
@@ -53,53 +53,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private WorkloadConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    int mutable_bitField0_ = 0;
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-              bitField0_ |= 0x00000001;
-              auditMode_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_WorkloadConfig_descriptor;
@@ -393,7 +346,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (((bitField0_ & 0x00000001) != 0)) {
       output.writeEnum(1, auditMode_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -405,7 +358,7 @@ public int getSerializedSize() {
     if (((bitField0_ & 0x00000001) != 0)) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(1, auditMode_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -425,7 +378,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasAuditMode()) {
       if (auditMode_ != other.auditMode_) return false;
     }
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -440,7 +393,7 @@ public int hashCode() {
       hash = (37 * hash) + AUDIT_MODE_FIELD_NUMBER;
       hash = (53 * hash) + auditMode_;
     }
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -570,17 +523,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.WorkloadConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -674,7 +620,7 @@ public Builder mergeFrom(com.google.container.v1beta1.WorkloadConfig other) {
       if (other.hasAuditMode()) {
         setAuditMode(other.getAuditMode());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -689,17 +635,37 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.WorkloadConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                auditMode_ = input.readEnum();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 8
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage = (com.google.container.v1beta1.WorkloadConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -845,7 +811,18 @@ public WorkloadConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new WorkloadConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadIdentityConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadIdentityConfig.java
index 867c5d68..f95b6884 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadIdentityConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadIdentityConfig.java
@@ -55,66 +55,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private WorkloadIdentityConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 10:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              identityNamespace_ = s;
-              break;
-            }
-          case 18:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              workloadPool_ = s;
-              break;
-            }
-          case 26:
-            {
-              java.lang.String s = input.readStringRequireUtf8();
-
-              identityProvider_ = s;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_WorkloadIdentityConfig_descriptor;
@@ -142,7 +82,7 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
    * string identity_namespace = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.WorkloadIdentityConfig.identity_namespace is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=4564
+   *     See google/container/v1beta1/cluster_service.proto;l=4577
    * @return The identityNamespace.
    */
   @java.lang.Override
@@ -168,7 +108,7 @@ public java.lang.String getIdentityNamespace() {
    * string identity_namespace = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.WorkloadIdentityConfig.identity_namespace is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=4564
+   *     See google/container/v1beta1/cluster_service.proto;l=4577
    * @return The bytes for identityNamespace.
    */
   @java.lang.Override
@@ -306,7 +246,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(identityProvider_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 3, identityProvider_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -324,7 +264,7 @@ public int getSerializedSize() {
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(identityProvider_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, identityProvider_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -343,7 +283,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getIdentityNamespace().equals(other.getIdentityNamespace())) return false;
     if (!getWorkloadPool().equals(other.getWorkloadPool())) return false;
     if (!getIdentityProvider().equals(other.getIdentityProvider())) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -360,7 +300,7 @@ public int hashCode() {
     hash = (53 * hash) + getWorkloadPool().hashCode();
     hash = (37 * hash) + IDENTITY_PROVIDER_FIELD_NUMBER;
     hash = (53 * hash) + getIdentityProvider().hashCode();
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -490,17 +430,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.WorkloadIdentityConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -604,7 +537,7 @@ public Builder mergeFrom(com.google.container.v1beta1.WorkloadIdentityConfig oth
         identityProvider_ = other.identityProvider_;
         onChanged();
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -619,18 +552,49 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.WorkloadIdentityConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                identityNamespace_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 10
+            case 18:
+              {
+                workloadPool_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 18
+            case 26:
+              {
+                identityProvider_ = input.readStringRequireUtf8();
+
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.WorkloadIdentityConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -645,7 +609,7 @@ public Builder mergeFrom(
      * string identity_namespace = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.WorkloadIdentityConfig.identity_namespace is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=4564
+     *     See google/container/v1beta1/cluster_service.proto;l=4577
      * @return The identityNamespace.
      */
     @java.lang.Deprecated
@@ -670,7 +634,7 @@ public java.lang.String getIdentityNamespace() {
      * string identity_namespace = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.WorkloadIdentityConfig.identity_namespace is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=4564
+     *     See google/container/v1beta1/cluster_service.proto;l=4577
      * @return The bytes for identityNamespace.
      */
     @java.lang.Deprecated
@@ -695,7 +659,7 @@ public com.google.protobuf.ByteString getIdentityNamespaceBytes() {
      * string identity_namespace = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.WorkloadIdentityConfig.identity_namespace is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=4564
+     *     See google/container/v1beta1/cluster_service.proto;l=4577
      * @param value The identityNamespace to set.
      * @return This builder for chaining.
      */
@@ -719,7 +683,7 @@ public Builder setIdentityNamespace(java.lang.String value) {
      * string identity_namespace = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.WorkloadIdentityConfig.identity_namespace is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=4564
+     *     See google/container/v1beta1/cluster_service.proto;l=4577
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -739,7 +703,7 @@ public Builder clearIdentityNamespace() {
      * string identity_namespace = 1 [deprecated = true];
      *
      * @deprecated google.container.v1beta1.WorkloadIdentityConfig.identity_namespace is deprecated.
-     *     See google/container/v1beta1/cluster_service.proto;l=4564
+     *     See google/container/v1beta1/cluster_service.proto;l=4577
      * @param value The bytes for identityNamespace to set.
      * @return This builder for chaining.
      */
@@ -999,7 +963,18 @@ public WorkloadIdentityConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new WorkloadIdentityConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadIdentityConfigOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadIdentityConfigOrBuilder.java
index be628ff0..5cc970a8 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadIdentityConfigOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadIdentityConfigOrBuilder.java
@@ -33,7 +33,7 @@ public interface WorkloadIdentityConfigOrBuilder
    * string identity_namespace = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.WorkloadIdentityConfig.identity_namespace is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=4564
+   *     See google/container/v1beta1/cluster_service.proto;l=4577
    * @return The identityNamespace.
    */
   @java.lang.Deprecated
@@ -48,7 +48,7 @@ public interface WorkloadIdentityConfigOrBuilder
    * string identity_namespace = 1 [deprecated = true];
    *
    * @deprecated google.container.v1beta1.WorkloadIdentityConfig.identity_namespace is deprecated.
-   *     See google/container/v1beta1/cluster_service.proto;l=4564
+   *     See google/container/v1beta1/cluster_service.proto;l=4577
    * @return The bytes for identityNamespace.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadMetadataConfig.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadMetadataConfig.java
index 591bdc9d..70b1fa43 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadMetadataConfig.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadMetadataConfig.java
@@ -54,59 +54,6 @@ public final com.google.protobuf.UnknownFieldSet getUnknownFields() {
     return this.unknownFields;
   }
 
-  private WorkloadMetadataConfig(
-      com.google.protobuf.CodedInputStream input,
-      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-      throws com.google.protobuf.InvalidProtocolBufferException {
-    this();
-    if (extensionRegistry == null) {
-      throw new java.lang.NullPointerException();
-    }
-    com.google.protobuf.UnknownFieldSet.Builder unknownFields =
-        com.google.protobuf.UnknownFieldSet.newBuilder();
-    try {
-      boolean done = false;
-      while (!done) {
-        int tag = input.readTag();
-        switch (tag) {
-          case 0:
-            done = true;
-            break;
-          case 8:
-            {
-              int rawValue = input.readEnum();
-
-              nodeMetadata_ = rawValue;
-              break;
-            }
-          case 16:
-            {
-              int rawValue = input.readEnum();
-
-              mode_ = rawValue;
-              break;
-            }
-          default:
-            {
-              if (!parseUnknownField(input, unknownFields, extensionRegistry, tag)) {
-                done = true;
-              }
-              break;
-            }
-        }
-      }
-    } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-      throw e.setUnfinishedMessage(this);
-    } catch (com.google.protobuf.UninitializedMessageException e) {
-      throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
-    } catch (java.io.IOException e) {
-      throw new com.google.protobuf.InvalidProtocolBufferException(e).setUnfinishedMessage(this);
-    } finally {
-      this.unknownFields = unknownFields.build();
-      makeExtensionsImmutable();
-    }
-  }
-
   public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     return com.google.container.v1beta1.ClusterServiceProto
         .internal_static_google_container_v1beta1_WorkloadMetadataConfig_descriptor;
@@ -507,7 +454,7 @@ private Mode(int value) {
    * 
    *
    * @deprecated google.container.v1beta1.WorkloadMetadataConfig.node_metadata is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4187
+   *     google/container/v1beta1/cluster_service.proto;l=4200
    * @return The enum numeric value on the wire for nodeMetadata.
    */
   @java.lang.Override
@@ -528,7 +475,7 @@ public int getNodeMetadataValue() {
    * 
    *
    * @deprecated google.container.v1beta1.WorkloadMetadataConfig.node_metadata is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4187
+   *     google/container/v1beta1/cluster_service.proto;l=4200
    * @return The nodeMetadata.
    */
   @java.lang.Override
@@ -605,7 +552,7 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         != com.google.container.v1beta1.WorkloadMetadataConfig.Mode.MODE_UNSPECIFIED.getNumber()) {
       output.writeEnum(2, mode_);
     }
-    unknownFields.writeTo(output);
+    getUnknownFields().writeTo(output);
   }
 
   @java.lang.Override
@@ -623,7 +570,7 @@ public int getSerializedSize() {
         != com.google.container.v1beta1.WorkloadMetadataConfig.Mode.MODE_UNSPECIFIED.getNumber()) {
       size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, mode_);
     }
-    size += unknownFields.getSerializedSize();
+    size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
   }
@@ -641,7 +588,7 @@ public boolean equals(final java.lang.Object obj) {
 
     if (nodeMetadata_ != other.nodeMetadata_) return false;
     if (mode_ != other.mode_) return false;
-    if (!unknownFields.equals(other.unknownFields)) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
 
@@ -656,7 +603,7 @@ public int hashCode() {
     hash = (53 * hash) + nodeMetadata_;
     hash = (37 * hash) + MODE_FIELD_NUMBER;
     hash = (53 * hash) + mode_;
-    hash = (29 * hash) + unknownFields.hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
   }
@@ -786,17 +733,10 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
     }
 
     // Construct using com.google.container.v1beta1.WorkloadMetadataConfig.newBuilder()
-    private Builder() {
-      maybeForceBuilderInitialization();
-    }
+    private Builder() {}
 
     private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       super(parent);
-      maybeForceBuilderInitialization();
-    }
-
-    private void maybeForceBuilderInitialization() {
-      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {}
     }
 
     @java.lang.Override
@@ -891,7 +831,7 @@ public Builder mergeFrom(com.google.container.v1beta1.WorkloadMetadataConfig oth
       if (other.mode_ != 0) {
         setModeValue(other.getModeValue());
       }
-      this.mergeUnknownFields(other.unknownFields);
+      this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
     }
@@ -906,18 +846,43 @@ public Builder mergeFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
-      com.google.container.v1beta1.WorkloadMetadataConfig parsedMessage = null;
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
       try {
-        parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                nodeMetadata_ = input.readEnum();
+
+                break;
+              } // case 8
+            case 16:
+              {
+                mode_ = input.readEnum();
+
+                break;
+              } // case 16
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-        parsedMessage =
-            (com.google.container.v1beta1.WorkloadMetadataConfig) e.getUnfinishedMessage();
         throw e.unwrapIOException();
       } finally {
-        if (parsedMessage != null) {
-          mergeFrom(parsedMessage);
-        }
-      }
+        onChanged();
+      } // finally
       return this;
     }
 
@@ -935,7 +900,7 @@ public Builder mergeFrom(
      * 
      *
      * @deprecated google.container.v1beta1.WorkloadMetadataConfig.node_metadata is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4187
+     *     google/container/v1beta1/cluster_service.proto;l=4200
      * @return The enum numeric value on the wire for nodeMetadata.
      */
     @java.lang.Override
@@ -956,7 +921,7 @@ public int getNodeMetadataValue() {
      * 
      *
      * @deprecated google.container.v1beta1.WorkloadMetadataConfig.node_metadata is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4187
+     *     google/container/v1beta1/cluster_service.proto;l=4200
      * @param value The enum numeric value on the wire for nodeMetadata to set.
      * @return This builder for chaining.
      */
@@ -980,7 +945,7 @@ public Builder setNodeMetadataValue(int value) {
      * 
      *
      * @deprecated google.container.v1beta1.WorkloadMetadataConfig.node_metadata is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4187
+     *     google/container/v1beta1/cluster_service.proto;l=4200
      * @return The nodeMetadata.
      */
     @java.lang.Override
@@ -1006,7 +971,7 @@ public com.google.container.v1beta1.WorkloadMetadataConfig.NodeMetadata getNodeM
      * 
      *
      * @deprecated google.container.v1beta1.WorkloadMetadataConfig.node_metadata is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4187
+     *     google/container/v1beta1/cluster_service.proto;l=4200
      * @param value The nodeMetadata to set.
      * @return This builder for chaining.
      */
@@ -1034,7 +999,7 @@ public Builder setNodeMetadata(
      * 
      *
      * @deprecated google.container.v1beta1.WorkloadMetadataConfig.node_metadata is deprecated. See
-     *     google/container/v1beta1/cluster_service.proto;l=4187
+     *     google/container/v1beta1/cluster_service.proto;l=4200
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -1175,7 +1140,18 @@ public WorkloadMetadataConfig parsePartialFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
-          return new WorkloadMetadataConfig(input, extensionRegistry);
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
         }
       };
 
diff --git a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadMetadataConfigOrBuilder.java b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadMetadataConfigOrBuilder.java
index 5cfebcc0..8d637d2c 100644
--- a/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadMetadataConfigOrBuilder.java
+++ b/proto-google-cloud-container-v1beta1/src/main/java/com/google/container/v1beta1/WorkloadMetadataConfigOrBuilder.java
@@ -36,7 +36,7 @@ public interface WorkloadMetadataConfigOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.WorkloadMetadataConfig.node_metadata is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4187
+   *     google/container/v1beta1/cluster_service.proto;l=4200
    * @return The enum numeric value on the wire for nodeMetadata.
    */
   @java.lang.Deprecated
@@ -54,7 +54,7 @@ public interface WorkloadMetadataConfigOrBuilder
    * 
    *
    * @deprecated google.container.v1beta1.WorkloadMetadataConfig.node_metadata is deprecated. See
-   *     google/container/v1beta1/cluster_service.proto;l=4187
+   *     google/container/v1beta1/cluster_service.proto;l=4200
    * @return The nodeMetadata.
    */
   @java.lang.Deprecated
diff --git a/proto-google-cloud-container-v1beta1/src/main/proto/google/container/v1beta1/cluster_service.proto b/proto-google-cloud-container-v1beta1/src/main/proto/google/container/v1beta1/cluster_service.proto
index 78854c0c..0c53fdee 100644
--- a/proto-google-cloud-container-v1beta1/src/main/proto/google/container/v1beta1/cluster_service.proto
+++ b/proto-google-cloud-container-v1beta1/src/main/proto/google/container/v1beta1/cluster_service.proto
@@ -702,7 +702,7 @@ message NodeConfig {
   // `minCpuPlatform: "Intel Haswell"` or
   // `minCpuPlatform: "Intel Sandy Bridge"`. For more
   // information, read [how to specify min CPU
-  // platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+  // platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
   string min_cpu_platform = 13;
 
   // The workload metadata configuration for this node.
@@ -752,6 +752,9 @@ message NodeConfig {
   // Confidential nodes config.
   // All the nodes in the node pool will be Confidential VM once enabled.
   ConfidentialNodes confidential_nodes = 35;
+
+  // Logging configuration.
+  NodePoolLoggingConfig logging_config = 38;
 }
 
 // Specifies options for controlling advanced machine features.
@@ -903,8 +906,9 @@ message ReservationAffinity {
   Type consume_reservation_type = 1;
 
   // Corresponds to the label key of a reservation resource. To target a
-  // SPECIFIC_RESERVATION by name, specify "googleapis.com/reservation-name" as
-  // the key and specify the name of your reservation as its value.
+  // SPECIFIC_RESERVATION by name, specify
+  // "compute.googleapis.com/reservation-name" as the key and specify the name
+  // of your reservation as its value.
   string key = 2;
 
   // Corresponds to the label value(s) of reservation resource(s).
@@ -1923,6 +1927,9 @@ message NodePoolDefaults {
 message NodeConfigDefaults {
   // GCFS (Google Container File System, also known as Riptide) options.
   GcfsConfig gcfs_config = 1;
+
+  // Logging configuration for node pools.
+  NodePoolLoggingConfig logging_config = 3;
 }
 
 // node pool configs that apply to all auto-provisioned node pools
@@ -2123,6 +2130,9 @@ message ClusterUpdate {
 
   // Enable/Disable Protect API features for the cluster.
   optional ProtectConfig desired_protect_config = 112;
+
+  // The desired node pool logging configuration defaults for the cluster.
+  NodePoolLoggingConfig desired_node_pool_logging_config = 116;
 }
 
 // This operation resource represents operations that may have happened or are
@@ -2493,6 +2503,9 @@ message UpdateNodePoolRequest {
 
   // Enable or disable gvnic on the node pool.
   VirtualNIC gvnic = 29;
+
+  // Logging configuration.
+  NodePoolLoggingConfig logging_config = 32;
 }
 
 // SetNodePoolAutoscalingRequest sets the autoscaler settings of a node pool.
@@ -3848,7 +3861,7 @@ message AutoprovisioningNodePoolDefaults {
   // minCpuPlatform: Intel Haswell or
   // minCpuPlatform: Intel Sandy Bridge. For more
   // information, read [how to specify min CPU
-  // platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform)
+  // platform](https://cloud.google.com/compute/docs/instances/specify-min-cpu-platform).
   // This field is deprecated, min_cpu_platform should be specified using
   // https://cloud.google.com/requested-min-cpu-platform label selector on the
   // pod.
@@ -5039,6 +5052,30 @@ message MonitoringConfig {
   ManagedPrometheusConfig managed_prometheus_config = 2;
 }
 
+// NodePoolLoggingConfig specifies logging configuration for nodepools.
+message NodePoolLoggingConfig {
+  // Logging variant configuration.
+  LoggingVariantConfig variant_config = 1;
+}
+
+// LoggingVariantConfig specifies the behaviour of the logging component.
+message LoggingVariantConfig {
+  // Logging component variants.
+  enum Variant {
+    // Default value. This shouldn't be used.
+    VARIANT_UNSPECIFIED = 0;
+
+    // default logging variant.
+    DEFAULT = 1;
+
+    // maximum logging throughput variant.
+    MAX_THROUGHPUT = 2;
+  }
+
+  // Logging variant deployed on nodes.
+  Variant variant = 1;
+}
+
 // MonitoringComponentConfig is cluster monitoring component configuration.
 message MonitoringComponentConfig {
   // GKE components exposing metrics
diff --git a/renovate.json b/renovate.json
index f3801fd5..9cf5dbc1 100644
--- a/renovate.json
+++ b/renovate.json
@@ -10,6 +10,7 @@
     ":maintainLockFilesDisabled",
     ":autodetectPinVersions"
   ],
+  "ignorePaths": [".kokoro/requirements.txt"],
   "packageRules": [
     {
       "packagePatterns": [
diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index 7ac63e01..b5255c67 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -29,7 +29,7 @@
     
       com.google.cloud
       google-cloud-container
-      2.5.1
+      2.5.2
     
     
 
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 13a502ca..45a0ae7d 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -28,7 +28,7 @@
     
       com.google.cloud
       google-cloud-container
-      2.5.1
+      2.5.2
     
 
     
diff --git a/versions.txt b/versions.txt
index 63eefcc6..973c367f 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,8 +1,8 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-container:2.5.2:2.5.2
-grpc-google-cloud-container-v1:2.5.2:2.5.2
-grpc-google-cloud-container-v1beta1:2.5.2:2.5.2
-proto-google-cloud-container-v1:2.5.2:2.5.2
-proto-google-cloud-container-v1beta1:2.5.2:2.5.2
+google-cloud-container:2.6.0:2.6.0
+grpc-google-cloud-container-v1:2.6.0:2.6.0
+grpc-google-cloud-container-v1beta1:2.6.0:2.6.0
+proto-google-cloud-container-v1:2.6.0:2.6.0
+proto-google-cloud-container-v1beta1:2.6.0:2.6.0