Update CHANGELOG.md

Author: gkjohnson

CHANGELOG.md

@@ -8,6 +8,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Fixed
 - Structural Metadata: Fixed case where accessor properties do not match the class definition.
 - Fix type definitions for LRUCache.
+- Implicit Subtree files being loaded with incorrect headers.
+
+### Added
+- QuantizedMeshPlugin: A plugin for loading quantized mesh files.
 
 ## [0.4.8] - 2025.04.07
 ### Fixed