v1.39.1

June 4, 2026

🛠️ Bug fixes

• Fixed a race condition in AbstractEndpointSelector where EndpointGroup.selectNow() could return null even when endpoints were available. #6786
  • This bug has been present since 1.35.0 and could cause xDS integrations to throw an EndpointSelectionTimeoutException on snapshot update.

🙇 Thank you

This release was possible thanks to the following contributors who shared their brilliant ideas and awesome pull requests: