[Release] google/adk-python v1.39.0: v1.39.0

Google ADK Python v1.39.0 introduces session resumption handling for live sessions and audio stream end support for realtime input. Key bug fixes address background tool task cleanup when live agent runs end and validation of session initialization events. This release enhances session management and real-time audio processing capabilities for AI agent development.

Key Points

• •Live sessions now use RunConfig.session_resumption.handle for improved session management and resumption
• •Added audio_stream_end support for realtime input processing, enabling proper stream termination handling
• •Background tool tasks are now properly stopped when a live agent run ends, preventing resource leaks
• •Session initialization events (v1) are now validated to ensure data integrity and proper session setup
• •Release focuses on stability improvements for live agent sessions and real-time audio interactions
• •Session resumption feature enables better continuity in long-running agent interactions

Workflow Diagram

Concepts