Sourced from google-adk's releases.

v1.28.1

1.28.1 (2026-04-02)

Features

• live: support live for gemini-3.1-flash-live-preview model (ee69661)

Bug Fixes

• Disallow args on /builder and Add warning about Web UI usage to CLI help (f037f68)
• live: Buffer tool calls and emit them together upon turn completion (081adbd)

v1.28.0

1.28.0 (2026-03-26)

Features

• a2a: add lifespan parameter to to_a2a() (0f4c807), closes #4701
• Add a new extension for the new version of ADK-A2A integration (6f0dcb3)
• Add ability to run individual unit tests to unittests.sh (b3fcd8a)
• Add database_role property to SpannerToolSettings and use it in execute_sql to support fine grained access controls (360e0f7)
• Add index to events table and update dependencies (3153e6d), closes #4827
• Add MultiTurn Task success metric (9a75c06)
• Add MultiTurn Task trajectory and tool trajectory metrics (38bfb44)
• Add slack integration to ADK (6909a16)
• Add Spanner Admin Toolset (28618a8)
• Add SSE streaming support to conformance tests (c910961)
• Add support for Anthropic's thinking_blocks format in LiteLLM integration (fc45fa6), closes #4801
• Add support for timeout to UnsafeLocalCodeExecutor (71d26ef)
• auth: Integrate GCP IAM Connectors (Noop implementation) (78e5a90)
• bigquery: Migrate 1P BQ Toolset (08be442) (7aa1f52) (d112131) (166ff99)
• enable suppressing A2A experimental warnings (fdc2b43)
• Enhance AgentEngineSandboxCodeExecutor sample to automatically provision an Agent Engine if neither agent_engine_resource_name nor sandbox_resource_name is provided (6c34694)
• Extract and merge EventActions from A2A metadata (4b677e7), closes #3968
• mcp: add sampling callback support for MCP sessions (8f82697)
• Optional GCP project and credential for GCS access (2f90c1a)
• Support new embedding model in files retrieval (faafac9)

Bug Fixes

• add agent name validation to prevent arbitrary module imports (116f75d)
• add protection for arbitrary module imports (995cd1c), closes #4947
• Add read-only session support in DatabaseSessionService (f6ea58b), closes #4771
• Allow snake case for skill name (b157276)
• bigquery: use valid dataplex OAuth scope (4010716)
• Default to ClusterIP so GKE deployment isn't publicly exposed by default (f7359e3)

... (truncated)

Sourced from google-adk's changelog.

Changelog

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_invocation Optional for 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_content to send conversation history (67dc2eb)
• live: Use send_tool_response for function responses (70c5fc8)

Documentation

• update MCP Toolbox branding, binary version, and asset references (47fa7b7)

1.30.0 (2026-04-13)

Features

• Add Auth Provider support to agent registry (f2c68eb)
• Add Parameter Manager integration to ADK (b0715d7)
• Add support for Gemma 4 models in ADK (9d4ecbe), closes #5156
• allow users to include artifacts from artifact_service in A2A events using provided interceptor (e63d991)
• emit a TaskStatusUpdateEvent for ADK events with no output parts but with event.actions (dcc485b)
• Live avatar support in ADK (a64a8e4)
• live: expose live_session_resumption_update as Event in BaseLlmFlow (2626ad7), closes #4357
• Promote BigQuery tools to Stable (abcf14c)
• samples: add sample for skill activation via environment tools (2cbb523)

... (truncated)

• 0d48362 chore(release/candidate): release 1.28.1 (#5121)
• f037f68 fix: Disallow args on /builder and Add warning about Web UI usage to CLI help
• 081adbd fix(live): Buffer tool calls and emit them together upon turn completion
• ee69661 feat(live): support live for gemini-3.1-flash-live-preview model
• 4e05efb chore: update last-release-sha for next release
• c57d000 chore(release/candidate): release 1.28.0 (#5014)
• 5020954 fix: Update list_agents to only list directories, not validate agent definitions
• f7359e3 fix: Default to ClusterIP so GKE deployment isn't publicly exposed by default
• ab9ae0f ADK changes
• 08be442 feat(bigquery): Migrate 1P BQ Toolset
• Additional commits viewable in compare view