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Building AI Agents with the Python Agent Development Kit (ADK) — 2026 Edition (v2)
The Python Agent Development Kit (ADK) 2.0 has been released with significant improvements aimed at simplifying the development and deployment of AI agents. Key features include upgraded core components for session isolation, improved dependency management, and support for both code-defined and YAML-configured agents. This update enables developers to create more complex workflows and integrated agent functionalities with lesser effort. There is a clear focus on enhancing user experience through better tools and documentation, indicating strong support for developers looking to leverage AI in their applications.
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Published 26 Jul 2026, 20:50 UTC4 min read
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Summary
TL;DR
- ADK 2.0 introduces a unified tool context for better session management.
- Support for both Python code-defined and YAML-configured agents.
- Enhanced tools for debugging and deployment via a built-in web UI.
- New asynchronous session adapters for various backend drivers.
- Comprehensive migration guide from ADK 1.x to 2.x to ease transition.
Interesting facts
- ADK 2.0 supports DAG execution models for advanced workflows.
- The framework is optimized for use with Gemini models on Google Cloud.
- Real-time agent execution traces can be inspected via the graphical chat UI.