Update changelog

Author: CloudFlo2312

CHANGELOG.md

@@ -5,6 +5,8 @@ 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).
 
 ## [Unreleased]
+
+## [v3.5.9-3] - 2022-02-10
 ### Fixed
 - XML-Parser Expat (CVE-2022-23852) security issue