Merge pull request MicrosoftDocs#2593 from MicrosoftDocs/master637407173324563219

Repo sync for protected CLA branch

Author: Colin Robertson

docs/overview/visual-cpp-language-conformance.md

@@ -1,7 +1,7 @@
 ---
 title: "Microsoft C++ language conformance table"
 description: "Table of Microsoft C++ conformance updates by Visual Studio version."
-ms.date: 08/06/2020
+ms.date: 11/10/2020
 ms.technology: "cpp-language"
 ms.assetid: 475da6e9-0d78-4b4e-bd23-f41c406c4efe
 author: "corob-msft"
@@ -86,11 +86,11 @@ For details on Visual Studio 2017 or Visual Studio 2019 MSVC conformance improve
 | &nbsp;&nbsp;[`P0588R1 Simplifying implicit lambda capture`](https://wg21.link/p0588r1) | VS 2019 16.4 <sup>[17](#note_17)</sup> |
 | &nbsp;&nbsp;[`P1771R1 [[nodiscard]] for constructors`](https://wg21.link/p1771r1) | VS 2019 16.4 <sup>[17](#note_17)</sup> |
 | &nbsp;&nbsp;[`P1825R0 Merged wording for P0527R1 and P1155R3, more implicit moves`](https://wg21.link/p1825r0) | VS 2019 16.4 <sup>[17](#note_17)</sup> |
-| &nbsp;&nbsp;[`P0929R2 Checking for abstract class types`](https://wg21.link/P0929R2) | No |
-| &nbsp;&nbsp;[`P0962R2 Relaxing the range-for loop customization point finding rules`](https://wg21.link/p0962r1) | No |
+| &nbsp;&nbsp;[`P0929R2 Checking for abstract class types`](https://wg21.link/P0929R2) | VS 2019 16.5 <sup>[17](#note_17)</sup> |
+| &nbsp;&nbsp;[`P0962R2 Relaxing the range-for loop customization point finding rules`](https://wg21.link/p0962r1) | VS 2019 16.5 <sup>[17](#note_17)</sup> |
 | &nbsp;&nbsp;[`P0859R0 CWG 1581: When are constexpr member functions defined`](https://wg21.link/p0859r0) | No |
-| &nbsp;&nbsp;[`P1009R2 Array size deduction in new-expressions`](https://wg21.link/P1009R2) | No |
-| &nbsp;&nbsp;[`P1286R2 Contra CWG DR1778`](https://wg21.link/P1286R2) | No |
+| &nbsp;&nbsp;[`P1009R2 Array size deduction in new-expressions`](https://wg21.link/P1009R2) | VS 2019 16.7 <sup>[17](#note_17)</sup> |
+| &nbsp;&nbsp;[`P1286R2 Contra CWG DR1778`](https://wg21.link/P1286R2) | VS 2019 16.8 <sup>[17](#note_17)</sup> |
 | __C++20 Core language features__ | __Supported__ |
 | &nbsp;&nbsp;[`P0704R1 Fixing const lvalue ref-qualified pointers to members`](https://wg21.link/p0704r1) | VS 2015 <sup>[14](#note_14)</sup> |
 | &nbsp;&nbsp;[`P1041R4 Make char16_t/char32_t string literals be UTF-16/32`](https://wg21.link/P1041R4) | VS 2015 <sup>[14](#note_14)</sup> |
@@ -131,6 +131,7 @@ For details on Visual Studio 2017 or Visual Studio 2019 MSVC conformance improve
 | &nbsp;&nbsp;[`P1907R1 Inconsistencies with non-type template parameters`](https://wg21.link/P1907R1) | VS 2019 16.6 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1971R0 US053: Mandate the return type for return_void and return_value to be void`](https://wg21.link/P1971R0) | VS 2019 16.6 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1971R0 US065: Apply Coroutines issue 24 from P0664R8`](https://wg21.link/P1971R0) | VS 2019 16.6 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1979R0 Resolution to US086`](https://wg21.link/P1979R0) | VS 2019 16.6 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P0388R4 Permit conversions to arrays of unknown bound`](https://wg21.link/P0388R4) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P0466R5 Layout-compatibility and Pointer-interconvertibility Traits`](https://wg21.link/P0466R5) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P0722R3 Efficient sized delete for variable sized classes`](https://wg21.link/P0722R3) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
@@ -148,35 +149,34 @@ For details on Visual Studio 2017 or Visual Studio 2019 MSVC conformance improve
 | &nbsp;&nbsp;[`P1969R0 CWG 2382: Array allocation overhead for non-allocating placement new`](https://wg21.link/p1969r0#2382) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1969R0 CWG 2441: Inline function parameters`](https://wg21.link/p1969r0#2441) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1971R0 US052: Non-executed return statements in coroutines`](https://wg21.link/P1971R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1972R0 US105: Check satisfaction of constraints for non-templates when forming pointer to function`](https://wg21.link/P1972R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1980R0 CA096: Declaration matching for non-dependent requires-clauses`](https://wg21.link/P1980R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P2082R1 Fixing CTAD for aggregates`](https://wg21.link/P2082R1) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P2085R0 Consistent defaulted comparisons`](https://wg21.link/P2085R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P2103R0 US033: Allow "import" inside linkage-specifications`](https://wg21.link/P2103R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P2107R0 US064: Copy semantics of coroutine parameters`](https://wg21.link/P2107R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P0912R5 Coroutines`](https://wg21.link/P0912R5) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1103R3 Modules`](https://wg21.link/P1103R3) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P0315R4 Allowing lambdas in unevaluated contexts`](https://wg21.link/P0315R4) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P0848R3 Conditionally trivial special member functions`](https://wg21.link/P0848R3) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P0960R3 Allow initializing aggregates from a parenthesized list of values`](https://wg21.link/P0960R3) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1766R1 Mitigating minor modules maladies`](https://wg21.link/P1766R1) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1811R0 Relaxing redefinition restrictions for re-exportation robustness`](https://wg21.link/P1811R0) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1874R1 Dynamic Initialization Order of Non-Local Variables in Modules`](https://wg21.link/P1874R1) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1975R0 Fixing the wording of parenthesized aggregate-initialization`](https://wg21.link/P1975R0) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P0641R2 const mismatch with defaulted copy constructor`](https://wg21.link/P0641R2) | Partial |
-| &nbsp;&nbsp;[`P0912R5 Coroutines`](https://wg21.link/P0912R5) | Partial |
-| &nbsp;&nbsp;[`P1103R3 Modules`](https://wg21.link/P1103R3) | Partial |
 | &nbsp;&nbsp;[`P1141R2 Yet another approach for constrained declarations`](https://wg21.link/P1141R2) | Partial |
-| &nbsp;&nbsp;[`P0315R4 Allowing lambdas in unevaluated contexts`](https://wg21.link/P0315R4) | No |
 | &nbsp;&nbsp;[`P0634R3 Down with typename!`](https://wg21.link/P0634R3) | No |
-| &nbsp;&nbsp;[`P0735R1 Interaction of memory_order_consume with release sequences`](https://wg21.link/P0735R1) | No |
 | &nbsp;&nbsp;[`P0784R7 More constexpr containers`](https://wg21.link/P0784R7) | No |
 | &nbsp;&nbsp;[`P0840R2 [[no_unique_address]] attribute`](https://wg21.link/P0840R2) | No |
-| &nbsp;&nbsp;[`P0848R3 Conditionally trivial special member functions`](https://wg21.link/P0848R3) | No |
-| &nbsp;&nbsp;[`P0960R3 Allow initializing aggregates from a parenthesized list of values`](https://wg21.link/P0960R3) | No |
 | &nbsp;&nbsp;[`P1064R0 Allowing virtual function calls in constant expressions`](https://wg21.link/P1064R0) | No |
 | &nbsp;&nbsp;[`P1073R3 Immediate functions`](https://wg21.link/P1073R3) | No |
 | &nbsp;&nbsp;[`P1143R2 constinit`](https://wg21.link/P1143R2) | No |
-| &nbsp;&nbsp;[`P1236R1 Signed integers are two's complement`](https://wg21.link/P1236R1) | N/A |
 | &nbsp;&nbsp;[`P1327R1 Allowing dynamic_cast, polymorphic typeid in constant expressions`](https://wg21.link/P1327R1) | No |
 | &nbsp;&nbsp;[`P1353R0 Missing feature-test macros`](https://wg21.link/P1353R0) | No |
 | &nbsp;&nbsp;[`P1668R1 Permitting unevaluated inline assembly in constexpr functions`](https://wg21.link/P1668R1) | No |
-| &nbsp;&nbsp;[`P1766R1 Mitigating minor modules maladies`](https://wg21.link/P1766R1) | No |
-| &nbsp;&nbsp;[`P1811R0 Relaxing redefinition restrictions for re-exportation robustness`](https://wg21.link/P1811R0) | No |
-| &nbsp;&nbsp;[`P1874R1 Dynamic Initialization Order of Non-Local Variables in Modules`](https://wg21.link/P1874R1) | No |
-| &nbsp;&nbsp;[`P1972R0 US105: Check satisfaction of constraints for non-templates when forming pointer to function`](https://wg21.link/P1972R0) | No |
-| &nbsp;&nbsp;[`P1975R0 Fixing the wording of parenthesized aggregate-initialization`](https://wg21.link/P1975R0) | No |
-| &nbsp;&nbsp;[`P1979R0 Resolution to US086`](https://wg21.link/P1979R0) | No |
-| &nbsp;&nbsp;[`P1980R0 CA096: Declaration matching for non-dependent requires-clauses`](https://wg21.link/P1980R0) | No |
+| &nbsp;&nbsp;[`P0735R1 Interaction of memory_order_consume with release sequences`](https://wg21.link/P0735R1) | N/A |
+| &nbsp;&nbsp;[`P1236R1 Signed integers are two's complement`](https://wg21.link/P1236R1) | N/A |
 
 ## Standard library features
 
@@ -243,48 +243,50 @@ A more detailed listing of Standard Library features and bug fixes by product ve
 | &nbsp;&nbsp;[`P0415R1 constexpr For <complex> (Again)`](https://wg21.link/p0415r1) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P0476R2 <bit> bit_cast`](https://wg21.link/P0476R2) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P0528R3 Atomic Compare-And-Exchange With Padding Bits`](https://wg21.link/P0528R3) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P0586R2 Integer comparison functions`](https://wg21.link/P0586R2) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P0674R1 make_shared() For Arrays`](https://wg21.link/p0674r1) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P0718R2 atomic<shared_ptr<T>>, atomic<weak_ptr<T>>`](https://wg21.link/p0718r2) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1023R0 constexpr For std::array Comparisons`](https://wg21.link/P1023R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1115R3 erase()/erase_if() Return size_type`](https://wg21.link/P1115R3) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1831R1 Deprecating volatile in the standard library`](https://wg21.link/P1831R1) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1871R1 Concept traits should be named after concepts`](https://wg21.link/P1831R1) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1956R1 <bit> has_single_bit(), bit_ceil(), bit_floor(), bit_width()`](https://wg21.link/P1956R1) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1964R2 Replacing boolean With boolean-testable`](https://wg21.link/P1964R2) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1976R2 Fixed-size span construction from dynamic range`](https://wg21.link/P1976R2) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P2091R0 Issues with range access CPOs`](https://wg21.link/P2091R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P2102R0 Make "implicit expression variations" more explicit`](https://wg21.link/P2102R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P2116R0 Remove tuple-like protocol support from fixed-extent span`](https://wg21.link/P2116R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
-| &nbsp;&nbsp;[`P0019R8 atomic_ref`](https://wg21.link/P0019R8) | No |
+| &nbsp;&nbsp;[`P0019R8 atomic_ref`](https://wg21.link/P0019R8) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P0528R3 Library support for atomic compare-and-exchange with padding bits`](https://wg21.link/P0528R3) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P0811R3 midpoint(), lerp()`](https://wg21.link/P0811R3) | Partial in VS 2019 16.3, complete in 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P0912R5 Library Support For Coroutines`](https://wg21.link/P0912R5) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1001R2 execution::unseq`](https://wg21.link/P1001R2) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1032R1 Miscellaneous constexpr`](https://wg21.link/P1032R1) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1065R2 constexpr INVOKE`](https://wg21.link/P1065R2) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1123R0 Editorial Guidance for merging P0019r8 and P0528r3`](https://wg21.link/P1123R0) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1135R6 The C++20 Synchronization Library`](https://wg21.link/P1135R6) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P1960R0 NB Comment Changes Reviewed by SG1`](https://wg21.link/P1960R0) | VS 2019 16.8 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P0053R7 <syncstream>`](https://wg21.link/p0053r7)<br/>&nbsp;&nbsp;[`P0753R2 osyncstream Manipulators`](https://wg21.link/p0753r2) | No |
 | &nbsp;&nbsp;[`P0339R6 polymorphic_allocator<>`](https://wg21.link/P0339R6) | No |
 | &nbsp;&nbsp;[`P0355R7 <chrono> Calendars And Time Zones`](https://wg21.link/p0355r7) | No |
 | &nbsp;&nbsp;[`P0408R7 Efficient access To basic_stringbuf's buffer`](https://wg21.link/p0408r7) | No |
 | &nbsp;&nbsp;[`P0466R5 Library support for layout-compatibility and pointer-interconvertibility traits`](https://wg21.link/p0466r5) | No |
 | &nbsp;&nbsp;[`P0475R1 Guaranteed Copy Elision For Piecewise Construction`](https://wg21.link/P0475R1) | No |
-| &nbsp;&nbsp;[`P0528R3 Library support for atomic compare-and-exchange with padding bits`](https://wg21.link/P0528R3) | No |
-| &nbsp;&nbsp;[`P0551R3 Thou Shalt Not Specialize std Function Templates!`](https://wg21.link/P0551R3) | No |
-| &nbsp;&nbsp;[`P0586R2 Integer comparison functions`](https://wg21.link/P0586R2) | No |
 | &nbsp;&nbsp;[`P0591R4 Utility Functions For Uses-Allocator Construction`](https://wg21.link/P0591R4) | No |
 | &nbsp;&nbsp;[`P0608R3 Improving variant's Converting Constructor/Assignment`](https://wg21.link/P0608R3) | No |
 | &nbsp;&nbsp;[`P0645R10 <format> Text Formatting`](https://wg21.link/p0645r10) | No |
 | &nbsp;&nbsp;[`P0660R10 <stop_token> and jthread`](https://wg21.link/p0660r10) | No |
 | &nbsp;&nbsp;[`P0768R1 Library Support For The Spaceship Comparison Operator <=>`](https://wg21.link/p0768r1) | Partial in VS 2019 16.0 <sup>[20](#note_20)</sup> |
-| &nbsp;&nbsp;[`P0784R7 Library support for more constexpr containers`](https://wg21.link/P0784R7) | No |
-| &nbsp;&nbsp;[`P0811R3 midpoint(), lerp()`](https://wg21.link/P0811R3) | Partial in VS 2019 16.3 <sup>[20](#note_20)</sup> |
-| &nbsp;&nbsp;[`P0896R4 <ranges>`](https://wg21.link/P0896R4) | No |
-| &nbsp;&nbsp;[`P0912R5 Library Support For Coroutines`](https://wg21.link/P0912R5) | No |
+| &nbsp;&nbsp;[`P0784R7 Library support for more constexpr containers`](https://wg21.link/P0784R7) | Partial in VS 2019 16.7 <sup>[20](#note_20)</sup> |
+| &nbsp;&nbsp;[`P0896R4 <ranges>`](https://wg21.link/P0896R4) | Partial in VS 2019 16.8 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P0980R1 constexpr std::string`](https://wg21.link/P0980R1) | No |
-| &nbsp;&nbsp;[`P1001R2 execution::unseq`](https://wg21.link/P1001R2) | No |
 | &nbsp;&nbsp;[`P1004R2 constexpr std::vector`](https://wg21.link/P1004R2) | No |
 | &nbsp;&nbsp;[`P1007R3 assume_aligned()`](https://wg21.link/P1007R3) | No |
 | &nbsp;&nbsp;[`P1020R1 Smart Pointer Creation With Default Initialization`](https://wg21.link/P1020R1) | No |
-| &nbsp;&nbsp;[`P1032R1 Miscellaneous constexpr`](https://wg21.link/P1032R1) | No |
-| &nbsp;&nbsp;[`P1065R2 constexpr INVOKE`](https://wg21.link/P1065R2) | No |
-| &nbsp;&nbsp;[`P1135R6 The C++20 Synchronization Library`](https://wg21.link/P1135R6) | No |
 | &nbsp;&nbsp;[`P1208R6 <source_location>`](https://wg21.link/P1208R6) | No |
 | &nbsp;&nbsp;[`P1285R0 Improving Completeness Requirements For Type Traits`](https://wg21.link/P1285R0) | No |
 | &nbsp;&nbsp;[`P1502R1 Standard Library Header Units`](https://wg21.link/P1502R1) | No |
-| &nbsp;&nbsp;[`P1614R2 Adding Spaceship <=> To The Library`](https://wg21.link/P1614R2) | No |
+| &nbsp;&nbsp;[`P1614R2 Adding Spaceship <=> To The Library`](https://wg21.link/P1614R2) | Partial in VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &nbsp;&nbsp;[`P1771R1 Library support for [[nodiscard]] for constructors`](https://wg21.link/P1771R1) | No |
 | __C++17 Standard library features__ | __Supported__ |
 | &nbsp;&nbsp;[`LWG 2221 Formatted output operator for nullptr`](https://cplusplus.github.io/LWG/issue2221) | VS 2019 16.1 |
@@ -417,7 +419,8 @@ __VS 2019 16.3__ indicates features that are supported in Visual Studio 2019 ver
 __VS 2019 16.4__ indicates features that are supported in Visual Studio 2019 version 16.4.\
 __VS 2019 16.5__ indicates features that are supported in Visual Studio 2019 version 16.5.\
 __VS 2019 16.6__ indicates features that are supported in Visual Studio 2019 version 16.6.\
-__VS 2019 16.7__ indicates features that are supported in Visual Studio 2019 version 16.7.
+__VS 2019 16.7__ indicates features that are supported in Visual Studio 2019 version 16.7.\
+__VS 2019 16.8__ indicates features that are supported in Visual Studio 2019 version 16.8.
 
 ### Notes