Add changelog entry

Signed-off-by: Paul Van Eck <[email protected]>

sdk/identity/azure-identity/CHANGELOG.md

@@ -4,8 +4,13 @@
 
 ### Features Added
 
+- Continuous Access Evaluation (CAE) is now configurable per-request by setting the `enable_cae` keyword argument to `True` in `get_token`. This applies to user credentials and service principal credentials.  ([#30777](https://github.com/Azure/azure-sdk-for-python/pull/30777))
+
 ### Breaking Changes
 
+- CP1 client capabilities for CAE is no longer always-on by default for user credentials. This capability will now be configured as-needed in each `get_token` request by each SDK.  ([#30777](https://github.com/Azure/azure-sdk-for-python/pull/30777))
+- Since CAE is no longer always enabled for user-credentials, the `AZURE_IDENTITY_DISABLE_CP1` environment variable is no longer supported.
+
 ### Bugs Fixed
 
 ### Other Changes