Prepare release

Author: sebastianbergmann

ChangeLog-9.6.md

@@ -2,7 +2,7 @@
 
 All notable changes of the PHPUnit 9.6 release series are documented in this file using the [Keep a CHANGELOG](https://keepachangelog.com/) principles.
 
-## [9.6.4] - 2023-MM-DD
+## [9.6.4] - 2023-02-27
 
 ### Fixed
 
@@ -36,7 +36,7 @@ All notable changes of the PHPUnit 9.6 release series are documented in this fil
 * [#5064](https://github.com/sebastianbergmann/phpunit/issues/5064): Deprecate `PHPUnit\Framework\TestCase::getMockClass()`
 * [#5132](https://github.com/sebastianbergmann/phpunit/issues/5132): Deprecate `Test` suffix for abstract test case classes
 
-[9.6.4]: https://github.com/sebastianbergmann/phpunit/compare/9.6.3...9.6
+[9.6.4]: https://github.com/sebastianbergmann/phpunit/compare/9.6.3...9.6.4
 [9.6.3]: https://github.com/sebastianbergmann/phpunit/compare/9.6.2...9.6.3
 [9.6.2]: https://github.com/sebastianbergmann/phpunit/compare/9.6.1...9.6.2
 [9.6.1]: https://github.com/sebastianbergmann/phpunit/compare/9.6.0...9.6.1

src/Runner/Version.php

@@ -41,7 +41,7 @@ public static function id(): string
         }
 
         if (self::$version === '') {
-            self::$version = (new VersionId('9.6.3', dirname(__DIR__, 2)))->getVersion();
+            self::$version = (new VersionId('9.6.4', dirname(__DIR__, 2)))->getVersion();
         }
 
         return self::$version;