Prepare release

Author: sebastianbergmann

ChangeLog-12.0.md

@@ -2,7 +2,7 @@
 
 All notable changes of the PHPUnit 12.0 release series are documented in this file using the [Keep a CHANGELOG](https://keepachangelog.com/) principles.
 
-## [12.0.9] - 2025-MM-DD
+## [12.0.9] - 2025-03-19
 
 ### Fixed
 
@@ -110,7 +110,7 @@ All notable changes of the PHPUnit 12.0 release series are documented in this fi
 * [#5801](https://github.com/sebastianbergmann/phpunit/issues/5801): Support for targeting traits with `#[CoversClass]` and `#[UsesClass]` attributes
 * [#5978](https://github.com/sebastianbergmann/phpunit/issues/5978): Support for PHP 8.2
 
-[12.0.9]: https://github.com/sebastianbergmann/phpunit/compare/12.0.8...12.0
+[12.0.9]: https://github.com/sebastianbergmann/phpunit/compare/12.0.8...12.0.9
 [12.0.8]: https://github.com/sebastianbergmann/phpunit/compare/12.0.7...12.0.8
 [12.0.7]: https://github.com/sebastianbergmann/phpunit/compare/12.0.6...12.0.7
 [12.0.6]: https://github.com/sebastianbergmann/phpunit/compare/12.0.5...12.0.6

src/Runner/Version.php

@@ -34,7 +34,7 @@ public static function id(): string
         }
 
         if (self::$version === '') {
-            self::$version = (new VersionId('12.0.8', dirname(__DIR__, 2)))->asString();
+            self::$version = (new VersionId('12.0.9', dirname(__DIR__, 2)))->asString();
         }
 
         return self::$version;