Google ADK Python v1.39.1

Google ADK Python releases published Google ADK Python v1.39.1. This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: 1.39.1 (https://github.com/google/adk-python/compare/v1.39.0...v1.39.1) (2026-08-27) Bug Fixes a2a: Port event action allowlist, agent card description source and resume flattening to v1 ( 6801 (https://github.com/google/adk-python/issues/6801)) ( 1f898a6 (https://github.com/google/adk-python/commit/1f898a6f3ac6baad482e32d8c7c09e293e129c68)) artifacts: Port app-scoped file artifact storage and layout-derived payload paths to v1 ( 6795 (https://github.com/google/adk-python/issues/6795)) ( 0ae2bff (https://github.com/google/adk-python/commit/0ae2bffdd2628af6c8643bc4fd40c2f49f0c6bd4)) artifacts: Port artifact reference scoping and path-segment validation to v1 ( 6794 (https://github.com/google/adk-python/issues/6794)) ( efc5bb8 (https://github.com/google/adk-python/commit/efc5bb858ec4bb94192e37ee28d006493709cec1)) cli: check the Host header on every local API server request (v1) ( 6789…

• Review the official Google ADK Python releases release notes before upgrading.
• Check compatibility, migration, and security notes against your current agent stack.
• Run focused regression tests before production rollout.