docs: update changelog and bump version

Author: lindyhopchris

Diff for: CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file. This projec
 
 ## Unreleased
 
+## [5.0.0] - 2025-02-24
+
+### Added
+
+- New 5.x chapters replicated from 4.x.
+- Reference Laravel 11 and 12 support in 5.x docs.
+- Added details on _Gate Responses_ to the authorization chapter.
+
 ## [4.1.1] - 2024-10-26
 
 ### Fixed