update changelog

Author: mikeebowen

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [1.5.4] - 2024-01-25
+
+### Fixed
+
+- Updated OOXMLValidator to RollForward with dotnet versions. (#24)
+
 ## [1.5.3] - 2024-01-23
 
 ### Updated