5.1.3 additional changelog updates

Author: DanF-ApexSystems

com.playeveryware.eos/CHANGELOG.md

@@ -2,10 +2,11 @@
 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).
 
-## [5.1.3] - 2026-01-09
+## [5.1.3] - 2026-01-13
 
 ### Fixed
 - Fix: UINativeLibVersion.cs compile error
+- Fix: RTC initialization error in the Unity editor on Mac.
 
 ## [5.1.2] - 2025-11-25