google-adk 2.7.0 · model-declared capabilities + media tools

Models report their own tool/schema support instead of ADK guessing from the model id. Tools can return images and other media on Gemini, Anthropic, LiteLLM, Apigee, and OCI. History keeps thought signatures and parallel function results. Breaking: pyarrow left the gcp extra — BigQuery analytics needs google-adk[bigquery-analytics].⁶

Relevant to: ADK agents that pair output schemas with tools, or return media from tools