Update CHANGELOG.md

Author: driesvints

CHANGELOG.md

@@ -1,6 +1,15 @@
 # Release Notes
 
-## [Unreleased](https://github.com/laravel/envoy/compare/v2.7.2...2.x)
+## [Unreleased](https://github.com/laravel/envoy/compare/v2.8.0...2.x)
+
+
+## [v2.8.0 (2022-01-12)](https://github.com/laravel/envoy/compare/v2.7.2...v2.8.0)
+
+### Changed
+- Laravel 9 Support ([#239](https://github.com/laravel/envoy/pull/239))
+
+### Fixed
+- Fix PHP 8.1 warnings ([#238](https://github.com/laravel/envoy/pull/238))
 
 
 ## [v2.7.2 (2021-11-09)](https://github.com/laravel/envoy/compare/v2.7.1...v2.7.2)