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adk-python/CHANGELOG.md
Bart ad4226b3d8 Copybara import of the project: 
--
1ca16aba5b7b869afa8e0a0cddaea539acd737f5 by bart.lee(이철민)/kakao <bart.lee@kakaocorp.com>:

chore: Improves session update time validation message

Enhances the error message when a session's last update time is later than the storage update time.
This provides better readability by formatting the timestamps in the error message.

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/adk-python/pull/446 from kakao-bart-lee:main a2a0cff036429b61bd7cf1600fc4c2c0cf50089d
PiperOrigin-RevId: 754452381
2025-05-03 17:07:53 -07:00

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Changelog

0.4.0

⚠ BREAKING CHANGES

  • Set the max size of strings in database columns. MySQL mandates that all VARCHAR-type fields must specify their lengths.
  • Extract content encode/decode logic to a shared util, resolve issues with JSON serialization, and update key length for DB table to avoid key too long issue in mysql.
  • Enhance FunctionTool to verify if the model is providing all the mandatory arguments.

Features

  • Update ADK setup guide to improve onboarding experience.
  • feat: add ordering to recent events in database session service.
  • feat(llm_flows): support async before/after tool callbacks.
  • feat: Added --replay and --resume options to adk run cli. Check adk run --help for more details.
  • Created a new Integration Connector Tool (underlying of the ApplicationIntegrationToolSet) so that we do not force LLM to provide default value.

Bug Fixes

  • Don't send content with empty text to LLM.
  • Fix google search reading undefined for renderedContent.

Miscellaneous Chores

  • Docstring improvements, typo fixings, github action to enfore code styles on formatting and imports, etc.

0.3.0

⚠ BREAKING CHANGES

  • Auth: expose access_token and refresh_token at top level of auth credentials, instead of a dict (commit).

Features

  • Added support for running agents with MCPToolset easily on adk web.
  • Added custom_metadata field to LlmResponse, which can be used to tag LlmResponse via after_model_callback.
  • Added --session_db_url to adk deploy cloud_run option.
  • Many Dev UI improvements:
    • Better google search result rendering.
    • Show websocket close reason in Dev UI.
    • Better error message showing for audio/video.

Bug Fixes

  • Fixed MCP tool json schema parsing issue.
  • Fixed issues in DatabaseSessionService that leads to crash.
  • Fixed functions.py.
  • Fixed skip_summarization behavior in AgentTool.

Miscellaneous Chores

  • README.md improvements.
  • Various code improvements.
  • Various typo fixes.
  • Bump min version of google-genai to 1.11.0.

0.2.0

⚠ BREAKING CHANGES

  • Fix typo in method name in Event: has_trailing_code_exeuction_result --> has_trailing_code_execution_result.

Features

  • adk CLI:
    • Introduce adk create cli tool to help creating agents.
    • Adds --verbosity option to adk deploy cloud_run to show detailed cloud run deploy logging.
  • Improve the initialization error message for DatabaseSessionService.
  • Lazy loading for Google 1P tools to minimize the initial latency.
  • Support emitting state-change-only events from planners.
  • Lots of Dev UI updates, including:
    • Show planner thoughts and actions in the Dev UI.
    • Support MCP tools in Dev UI. (NOTE: agent.py interface is temp solution and is subject to change)
    • Auto-select the only app if only one app is available.
    • Show grounding links generated by Google Search Tool.
  • .env file is reloaded on every agent run.

Bug Fixes

  • LiteLlm: arg parsing error and python 3.9 compatibility.
  • DatabaseSessionService: adds the missing fields; fixes event with empty content not being persisted.
  • Google API Discovery response parsing issue.
  • load_memory_tool rendering issue in Dev UI.
  • Markdown text overflows in Dev UI.

Miscellaneous Chores

  • Adds unit tests in Github action.
  • Improves test coverage.
  • Various typo fixes.

0.1.0

Features

  • Initial release of the Agent Development Kit (ADK).
  • Multi-agent, agent-as-workflow, and custom agent support
  • Tool authentication support
  • Rich tool support, e.g. built-in tools, google-cloud tools, third-party tools, and MCP tools
  • Rich callback support
  • Built-in code execution capability
  • Asynchronous runtime and execution
  • Session, and memory support
  • Built-in evaluation support
  • Development UI that makes local development easy
  • Deploy to Google Cloud Run, Agent Engine
  • (Experimental) Live(Bidi) audio/video agent support and Compositional Function Calling(CFC) support