Update CHANGELOG

Author: hosmelq

CHANGELOG.md

@@ -5,12 +5,24 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased](https://github.com//plutolinks/loops-php/compare/v0.1.0...HEAD)
+## [Unreleased](https://github.com//plutolinks/loops-php/compare/v0.2.0...HEAD)
 
 ### Fixed
 
 - Fix EventSendResponse by [HelgeSverre](https://github.com/HelgeSverre) in [#2](https://github.com/plutolinks/loops-php/pull/2)
 
+## [v0.2.0](https://github.com//plutolinks/loops-php/compare/v0.1.0...v0.2.0) - 2024-05-18
+
+### What's Changed
+
+* Fix: ErrorException in EventSendResponse due to  Undefined array key "message" (add missing null coalesce operator) by [@HelgeSverre](https://github.com/HelgeSverre) in https://github.com/plutolinks/loops-php/pull/2
+
+### New Contributors
+
+* [@HelgeSverre](https://github.com/HelgeSverre) made their first contribution in https://github.com/plutolinks/loops-php/pull/2
+
+**Full Changelog**: https://github.com/plutolinks/loops-php/compare/v0.1.0...v0.2.0
+
 ## v0.1.0 - 2024-03-11
 
 Initial release.