Update ChangeLog

Author: sebastianbergmann

ChangeLog.md

@@ -2,6 +2,12 @@
 
 All notable changes are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
 
+## [9.2.21] - 2022-MM-DD
+
+### Changed
+
+* [#964](https://github.com/sebastianbergmann/php-code-coverage/pull/964): Changed how executable lines are identified
+
 ## [9.2.20] - 2022-12-13
 
 ### Fixed
@@ -439,6 +445,7 @@ All notable changes are documented in this file using the [Keep a CHANGELOG](htt
 
 * This component is no longer supported on PHP 7.1
 
+[9.2.21]: https://github.com/sebastianbergmann/php-code-coverage/compare/9.2.20...9.2
 [9.2.20]: https://github.com/sebastianbergmann/php-code-coverage/compare/9.2.19...9.2.20
 [9.2.19]: https://github.com/sebastianbergmann/php-code-coverage/compare/9.2.18...9.2.19
 [9.2.18]: https://github.com/sebastianbergmann/php-code-coverage/compare/9.2.17...9.2.18