Python Provider 2.0.0b2 Changelog update (#37860)

* Update CHANGELOG.md

* Update CHANGELOG.md

Author: mrm9084

sdk/appconfiguration/azure-appconfiguration-provider/CHANGELOG.md

@@ -1,10 +1,17 @@
 # Release History
 
-## 2.0.0b2 (2024-09-12)
+## 2.0.0b2 (2024-10-11)
+
+### Feature Added
+
+* Added AllocationId to the feature flag telemetry metadata when the feature flag has telemetry enabled.
 
 ### Bugs Fixed
 
-* Fixing ETag to be "ETag" instead of "etag" in feature flag telemetry.
+* Fixed a number of cases where snake case was used instead of pascal case for feature flag telemetry.
+  * etag -> ETag
+  * feature_flag_reference -> FeatureFlagReference
+  * feature_flag_id -> FeatureFlagId
 
 ## 2.0.0b1 (2024-09-11)