Update CHANGELOG.md

Author: driesvints

CHANGELOG.md

@@ -1,6 +1,12 @@
 # Release Notes
 
-## [Unreleased](https://github.com/laravel/laravel/compare/v8.5.7...8.x)
+## [Unreleased](https://github.com/laravel/laravel/compare/v8.5.8...8.x)
+
+
+## [v8.5.8 (2021-01-12)](https://github.com/laravel/laravel/compare/v8.5.7...v8.5.8)
+
+### Fixed
+- Update `TrustProxies.php` ([#5514](https://github.com/laravel/laravel/pull/5514))
 
 
 ## [v8.5.7 (2021-01-05)](https://github.com/laravel/laravel/compare/v8.5.6...v8.5.7)