[Release] google/adk-python v2.0.0a3: v2.0.0a3

Google ADK Python v2.0.0a3 introduces major workflow orchestration capabilities with Workflow(BaseNode) graph implementation, supporting lazy scan deduplication, dynamic node resume, and nested workflow partial resume. The release enhances CLI and Web UI with workflow graph visualization featuring distinct icons and improved readability. Documentation improvements include development references for skills and observability architecture.

Key Points

• •Workflow(BaseNode) graph orchestration enables complex workflow management with visual representation
• •Lazy scan deduplication reduces redundant processing in workflow execution
• •Dynamic node resume capability allows workflows to recover from interruptions at specific nodes
• •Partial resume for nested workflows enables granular control over workflow restart points
• •State and artifact delta bundling optimizes event payload efficiency by only transmitting changes
• •Web UI workflow graph visualization with distinct icons and shapes improves developer experience
• •Active node rendering in event graph provides real-time workflow execution visibility
• •Development documentation includes adk-style, adk-git, and observability architecture references
• •Enhanced graph readability through visual distinction of node types and states

Workflow Diagram

Concepts