Add changelog

Author: renaudhartert-db

NEXT_CHANGELOG.md

@@ -3,10 +3,12 @@
 ## Release v0.60.0
 
 ### New Features and Improvements
+
 * Added headers to HttpRequestResponse in OpenAI client.
 
 ### Bug Fixes
 
+- Correctly issue in OIDC implementation that prevented the use of the feature (see #994).
 - Fix a reported issue where `FilesExt` fails to retry if it receives certain status code from server.
 
 ### Documentation