langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- feat(fireworks): surface LangSmith gateway metadata on successful responses
- nomic: `NomicEmbeddings.embed_image` raises a bare `AssertionError` unless `vision_model` is set, and `vision_model` is rejected by type checkers
- fix(groq): filter invalid tool call blocks in v1 conversion
- core: `convert_to_openai_messages` raises `KeyError: 'type'` for any content block without a `type` key
- langchain-core: is_data_content_block recomputes the block types on every call, ~23ms per ChatOpenAI payload
- fix(openai): filter foreign reasoning from Responses input
- feat(callbacks): In-memory Zero-Trust Data Sanitization (ZTDS) callback (IETF draft-02)
- langchain-openai: OpenAI() defaults to gpt-3.5-turbo-instruct (shut down Sep 28) and ChatOpenAI() to gpt-3.5-turbo (shuts down Oct 23)
- fix(openai): normalize content-policy refusal errors
- ModelFallbackMiddleware strips cache_control when falling back to ChatAnthropicMantle
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