Update CHANGELOG.md

Author: orweller

CHANGELOG.md

@@ -7,6 +7,12 @@ 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).
 
+## [4.0.0] - 2024-09-11
+
+### Changed
+
+1. Update ActiveSupport Version to support Rails 7. (IN-2109)
+
 ## [3.0.1] - 2024-09-09
 
 ### Changed