Update CHANGELOG.md

Author: gkjohnson

CHANGELOG.md

@@ -23,6 +23,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Fixed
 - Controls: Fixed case where pointer state may not have been reset correctly.
+- ImageOverlayPlugin: "enableTileSplitting" now works with "ADDITIVE" tiles.
+- EnforceNonZeroErrorPlugin: adjusted error is now based on the first parent with geometric error encountered.
 
 ## [0.4.18] - 2025.11.14
 ### Added