Update CHANGELOG.md

Author: zHaytam

CHANGELOG.md

@@ -12,6 +12,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Support for .NET 9 (thanks to @[PanayiotisTheodosiou](https://github.com/PanayiotisTheodosiou))
 - `registerDefaultBehaviors` argument to `BlazorDiagram` constructor, it's `true` by default and can be disabled if you want to control what behaviors are added and their order.
 
+### Changed
+
+- Make `DiagramCanvas` await un-subscription to resizes subscription (thanks to @[toluwtglobal](https://github.com/toluwtglobal))
+
 ### Fixed
 
 - Exception thrown when `node.Visible` was `false` from the creation and the library was trying to observe its resizes when the element won't exist (fixes #476).