1.31.0 (2026-04-16)
Features
- Add "google-adk" user agent to Parameter Manager and Secret Manager clients (b8e8f6b)
- Add support for memories.ingest_events in VertexAiMemoryBankService (d69477f)
- Add Vertex AI Agent Engine Sandbox integration for computer use (7686848)
- Firestore support (1a9df8f)
- live: Add live_session_id to LlmResponse (bf84e2c)
Bug Fixes
- Bump minimum mcp version from 1.23.0 to 1.24.0 (494c360)
- cli: correct console URL path after adk deploy agent_engine (64ed1a6), closes #5336
- execute on_event_callback before append_event to persist plugin modifications (454188d), closes #3990
- make
_EvalMetricResultWithInvocation.expected_invocationOptionalfor conversation_scenario support (#5215) (a4c9387) - Pass in auth headers with header provider instead of connection params (e12b0af)
- populate required fields in FunctionDeclaration json_schema fallback (9b9faa4)
- Resolve BigQuery plugin issues with A2A transfers, spans, and metadata (9ca8c38)
- upgrade google-genai lower bound (8bc5728)
Code Refactoring
- live: Use
send_client_contentto send conversation history (67dc2eb) - live: Use
send_tool_responsefor function responses (70c5fc8)
Documentation
- update MCP Toolbox branding, binary version, and asset references (47fa7b7)