Update CHANGELOG.md

Author: gkjohnson

CHANGELOG.md

@@ -9,6 +9,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - `load-error` events when model, tile set, and API token requests fail to fetch or parse.
 - CanvasDOMOverlay: Add support for "ref".
 
+### Fixed
+- Improved the behavior of `loadProgress` so it "bounces" less during loading (other than cases with external tile sets).
+
 ## [0.4.3] - 2025.01.19
 ### Added
 - Updated types for EnvironmentControls and GlobeControls.