Google ADK 2.0 Achieves Stability: Key Changes and Migration Guidance

What google-adk 2.0 Changes 1. The Workflow Runtime (The Big One) The biggest structural change in 2.0 is a new graph-based workflow execution engine. In 1.x, agent orchestration was largely LLM-driven — you defined tools and let the model decide when to use them. In 2.0, you can define deterministi