update changelog

Author: enoodle

CHANGELOG.md

@@ -8,6 +8,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ### Fixed
 - kai-scheduler will not ignore pod spec.overhead field
+- Fixed wrong GPU memory unit conversion from node `nvidia.com/gpu.memory` labels
+- Fixed incorrect MIG GPU usage calculation leading to wrong scheduling decision
 
 ## [v0.4.12] - 2025-07-18