Summary

The release adds automatic Python-worker flags, synchronous try-read/write helpers and fixes for Pyodide dynamic library loading. It also improves hibernating WebSocket write serialisation and actor-fetch retries, while expanding test coverage for streams and queuing strategies.

Why it matters

These runtime changes affect correctness under suspension, retry and cross-language execution—the conditions that often separate a demo from a durable edge service. The release is relevant to teams using Workers as a full-stack or agent backend.

Sources