- Replaced gogo/protobuf with google.protobuf, causing breaking changes to generated code and requiring core/visibility schema upgrades.
- Introduced multiple new features such as system search attributes (ParentWorkflowId, ParentRunId), batch workflow reset by build ID, History task DLQ, approximate FIFO task queueing, global persistence rate limiting, and visibility prefi...
- Deprecated standard visibility and old config key names, renamed deadlock detector metrics, and updated documentation and Docker/Helm artifacts.