- Upgrade required schema versions for MySQL, PostgreSQL, and Cassandra with a new Schema Upgrade Tool and note that v1.16 is the last Alpine‑based Docker image (future releases need Docker >=20.10).
- Add OperatorService with experimental DeleteNamespace API, new TERMINATE_IF_RUNNING workflowIdReusePolicy, request‑cancel reason field, expanded NonRetryableErrorTypes, heartbeat details on activity failures, and new ListHistoryTasks and...
- Multiple bug fixes and enhancements: activity local dispatch optimization, added TLS RemoteClusters config, SKIP_DB_CREATE env var, new visibility and task metrics, and numerous stability fixes across persistence, replication, and task p...