sdk-python

:boom: Breaking Changes

💥 Experimental standalone activity support in https://github.com/temporalio/sdk-python/pull/1307

• activity.Info modified to make workflow_id, workflow_namespace, workflow_run_id, and workflow_type optional
  • 💥 SLIGHT BREAKING CHANGE for those manually expecting non-None fields or manually creating the info for tests
• `converter.BaseWorkflowSeriali...

Highlights

• Deployment-based Worker Versioning APIs are in General Availability.
• Environment Configuration is in General Availability.

What's Changed

• Adds basedpyright support to poe lint by @tconley1428 in https://github.com/temporalio/sdk-python/pull/1240
• Remove stdlib_module_names test that is no longer relevant by @VegetarianOrc in https://github.com/temporalio/sdk-python...

PyPI

Bug Fixes

• Dynamic handlers now support typing.Sequence and collections.abc.Sequence for their third argument.
• Add compatibility with OpenAI Agents SDK 0.6.4.

Specific Changes

2025-12-19 - 772050e - Add backward compatibility for dynamic handler signatures (#1258) 2025-12-19 - f0bd341 - Ope...

PyPI

TLS Automatically Enabled When API Key Provided

When creating a Client, specifying the api_key option will now automatically enable TLS. Users that wish to use an API Key without TLS enabled must explicitly pass tls=False when creating their client. See Client.connect f...

PyPI

Worker Heartbeating (Public Preview)

This release adds a new feature called Worker Heartbeating. This feature spins up a single nexus-only worker per Client/Namespace/Task Queue in the background and periodically sends some basic metrics over to server for all of the workers registered on the same Client/Namespace/Task Queue.

Server version...