langgraph
https://github.com/langchain-ai/langgraph
Python
Build resilient language agents as graphs.
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- Issues
- checkpoint: preserve recency semantics for checkpoint-only before cursors
- fix(prebuilt): tolerate absent NotRequired state fields in InjectedState
- fix(langgraph): avoid rewriting unchanged parent keys
- fix(sdk-py): add stream_resumable to thread_id:str stream() overloads
- Memory leak: _checkpointer_put_after_previous coroutine chains accumulate with default durability="async"
- Feature: Cryptographic action receipts (AAR) for provable agent execution
- test(checkpoint): add edge-case tests for InMemorySaver and JsonPlusSerializer
- test(langgraph): add edge-case tests for EphemeralValue, NamedBarrierValue, and LastValueAfterFinish channels
- test(langgraph): add unit tests for errors module
- feat(langgraph): add __repr__ methods to all channel classes for better debugging
- Docs
- Python not yet supported