- Introduced Worker Versioning Upgrade on Continue as New (Public Preview) allowing pinned workflows to auto‑upgrade to the target worker deployment version
- Added system protection caches and VersioningOverride handling to improve version drainage and reduce GetTaskQueueUserData lookups
- Fixed multiple bugs (backlog count metric, task rescheduling during AutoUpgrade, archived workflow retrieval, fairTaskReader race) and applied critical security patches to gRPC, OpenTelemetry SDK, Go runtime, and Alpine zlib