langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- bug: RePhraseQueryRetriever._aget_relevant_documents raises NotImplementedError
- ChatAnthropic.bind_tools mutates caller-provided tool_choice dict
- feat(openai): add ChatGPT OAuth-backed `ChatOpenAICodex` chat model
- anthropic: base64 file blocks with non-PDF text mime types fail with media_type validation error
- feat(partners): ContextOverflowError for Groq/Mistral + standard test coverage
- langchain-openrouter: ChatOpenRouter creates fresh httpx clients per instantiation (no default-client caching)
- feat(text-splitters): add SemanticCohesionSplitter with adaptive Max-Min cohesion threshold
- fix(core): preserve message classes in `Serializable` envelopes
- `Chroma.update_document()` fails when `Document` metadata is omitted
- feat(langchain): add fork_agent for spawning identical sub-agents
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- Python not yet supported