Merge pull request #76 from PHPCompatibility/feature/changelog-release-2.0.0-alpha1

Changelog for version 2.0.0-alpha1

Author: jrfnl

CHANGELOG.md

@@ -4,6 +4,26 @@ All notable changes to this project will be documented in this file.
 
 This projects adheres to [Semantic Versioning](https://semver.org/) and [Keep a CHANGELOG](https://keepachangelog.com/).
 
+## [2.0.0-alpha1] - 2025-10-22
+
+* Added new `PHPCompatibilitySymfonyPolyfillPHP81` ruleset.
+* Added new `PHPCompatibilitySymfonyPolyfillPHP82` ruleset.
+* Added new `PHPCompatibilitySymfonyPolyfillPHP83` ruleset.
+* Added new `PHPCompatibilitySymfonyPolyfillPHP84` ruleset.
+* Added new `PHPCompatibilitySymfonyPolyfillPHP85` ruleset.
+* Composer: All PHPCompatibility dependencies have been updated to the recently released PHPCompatibility 10.0.0-alpha1 based versions.
+ Note: in select cases, this means that custom `<exclude>` rules in a project's `[.]phpcs.xml[.dist]` configuration file may needs to be updated.
+ Along the same lines, selective `// phpcs:ignore` comments used inline may need to be updated with the new sniff code(s).
+ For full information on these kind of changes, please refer to the [Upgrade guide for PHPCompatibility 10.0.0][phpcompat-wiki-upgrade-10].
+* The [Composer PHPCS plugin] will now be installed automatically to register PHPCompatibility and other external standards with PHP_CodeSniffer.
+ If you have a `require-dev` in place for this plugin in your own `composer.json`, it is strongly recommended to remove this to prevent conflicting version constraints.
+ If you previously used another Composer plugin, manually set the `installed_paths` configuration, or set the `installed_paths` in your `[.]phpcs.xml[.dist]` configuration file, it is recommended you remove this in favour of letting the [Composer PHPCS plugin] handle this.
+* Support for PHP 5.3 has been dropped. The new minimum supported PHP version is 5.4.
+* Support for PHP_CodeSniffer 4.0 has been added.
+* Support for PHP_CodeSniffer < 3.13.3 has been dropped.
+
+[phpcompat-wiki-upgrade-10]: https://github.com/PHPCompatibility/PHPCompatibility/wiki/Upgrading-to-PHPCompatibility-10.0
+
 ## [1.2.3] - 2025-10-18
 
 This is a maintenance release.
@@ -69,6 +89,7 @@ Initial release of PHPCompatibilitySymfony containing rulesets covering the `pol
 
 [Composer PHPCS plugin]: https://github.com/PHPCSStandards/composer-installer/
 
+[2.0.0-alpha1]: https://github.com/PHPCompatibility/PHPCompatibilitySymfony/compare/1.2.3...2.0.0-alpha1
 [1.2.3]: https://github.com/PHPCompatibility/PHPCompatibilitySymfony/compare/1.2.2...1.2.3
 [1.2.2]: https://github.com/PHPCompatibility/PHPCompatibilitySymfony/compare/1.2.1...1.2.2
 [1.2.1]: https://github.com/PHPCompatibility/PHPCompatibilitySymfony/compare/1.2.0...1.2.1