Add changes to changelog

Author: James Walker

CHANGELOG.md

@@ -4,6 +4,13 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [4.0.2] - 2025-06-04
+
+### Fixed
+
+- Fixed version number not matching release, incremented new version number for hotfix.
+
 ## [4.0.1] - 2025-04-30
 
 ### Added