Update CHANGELOG.md

CHANGELOG.md

@@ -1,6 +1,20 @@
 # Release Notes
 
-## [Unreleased](https://github.com/laravel/laravel/compare/v9.0.0...9.x)
+## [Unreleased](https://github.com/laravel/laravel/compare/v9.0.1...9.x)
+
+## [v9.0.1](https://github.com/laravel/laravel/compare/v9.0.0...v9.0.1) - 2022-02-15
+
+### Changed
+
+- Improve typing on user factory by @axlon in https://github.com/laravel/laravel/pull/5806
+- Align min PHP version with docs by @u01jmg3 in https://github.com/laravel/laravel/pull/5807
+- Remove redundant `null`s by @felixdorn in https://github.com/laravel/laravel/pull/5811
+- Remove default commented namespace by @driesvints in https://github.com/laravel/laravel/pull/5816
+- Add underscore to prefix in database cache key by @m4tlch in https://github.com/laravel/laravel/pull/5817
+
+### Fixed
+
+- Fix lang alphabetical order by @shuvroroy in https://github.com/laravel/laravel/pull/5812
 
 ## [v9.0.0 (2022-02-08)](https://github.com/laravel/laravel/compare/v8.6.11...v9.0.0)