Prepare 0.3.0 release

CHANGELOG.md

@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.3.0] - 2024-07-29
 ### Added
 - Compatibility with FCM HTTP v1 API.
 
@@ -34,6 +36,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) a
 ### Added
 - First release
 
-[Unreleased]: https://github.com/erickskrauch/fcm/compare/0.2.1...HEAD
+[Unreleased]: https://github.com/erickskrauch/fcm/compare/0.3.0...HEAD
+[0.3.0]: https://github.com/elyby/php-code-style/compare/0.2.1...0.3.0
 [0.2.1]: https://github.com/elyby/php-code-style/compare/0.2.0...0.2.1
 [0.2.0]: https://github.com/elyby/php-code-style/compare/0.1.0...0.2.0