langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- fix(core): prevent cross-type content block merging in `merge_lists`
- Non-dict tool arguments should be set invalid
- ModelRequest.override(messages=...) rejects list[BaseMessage] due to list invariance
- Proposal: Exporting verifiable runtime evidence bundles for agent runs
- Bug: `merge_dicts` raises TypeError for float values during streaming chunk aggregation
- GNAP: git-native durable task queue for LangChain agent pipelines
- Feature: TTL-based in-memory cache for non-serializable middleware state
- fix(core): shared mutable dict references in BaseLLM metadata_list construction
- Support Anthropic Claude automatic caching in ChatOpenRouter
- XAI: Make Responses endpoint default
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- Python not yet supported