Release 1.12.0

[seanzhou1023]

Features

[Agent Config] 🌟 NEW FEATURE: Support using config file (YAML) to author agents in addition to python code. See the documentation for details.

• [Agent Config] Support deploying config agent to Agent Engine in CLI (b3b7003)
• [Tools] Add a dedicated Bigtable toolset to provide an easier, integrated way to interact
  with Bigtable for building AI Agent applications(experimental feature) (a953807)
• [Tools] Support custom tool_name_prefix in auto-generated GoogleApiToolset (a2832d5) See oauth_calendar_agent as an example.
• [CLI] Add build_image option for adk deploy cloud_run CLI (c843503)
• [Services] Add setdefault method to the ADK State object (77ed1f5)

Bug Fixes

• Lazy load VertexAiCodeExecutor and ContainerCodeExecutor (018db79)
• Fix the path for agent card in A2A demo (fa64545)
• Fix the path for agent card in A2A demo (a117cf0)
• litellm-test due to breaking change in dep library of extension extra (004a0a0)
• Using base event's invocation id when merge multiple function response event (279e4fe)
• Avoid crash when there is no candidates_token_count, which is Optional (22f34e9)
• Fix the packaging version comparison logic in adk cli (a2b7909)
• Add Spanner admin scope to Spanner tool default Oauth scopes (b66054d)
• Fixes SequentialAgent.config_type type hint (8a9a271)
• Fixes the host in the ansi bracket of adk web (cd357bf)
• Add spanner tool name prefix (a27927d)

Improvements

• Support ADK_SUPPRESS_EXPERIMENTAL_FEATURE_WARNINGS as environment variable to suppress experimental warnings (4afc9b2)
• Uses pydantic Field for Agent configs, so that the generated AgentConfig.json json schema can carry field description (5b999ed)
• Update openai dependency version, based on correct OPENAI release (bb8ebd1)
• Add the missing license header for core_callback_config init file (f8fd6a4)
• Creates yaml_utils.py in utils to allow adk dump yaml in the same style (1fd58cb)
• Return explict None type for DELETE endpoints (f03f167)
• Add _config suffix to all yaml-based agent examples (43f302c)
• Rename run related method and request to align with the conventions (ecaa7b4)
• Update models in samples/ folder to be gemini 2.0+ (6c217ba)
• Remove the "one commit" requirement from the contributing guide (c32cb6e)
• Bump version to 1.11.0 (8005270)

Documentation

• Add contributing bigtable sample (fef5318)
• Fix core_callback example (ba6e85e)
• Adds a minimal sample to demo how to use Agent Config to create a multi-agent setup (1328e6e)

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This discussion was created from the release Release 1.12.0.