langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- SummarizationMiddleware deletes conversation history when the summary model returns an empty reply
- feat(langchain): Remove EOL'd Python 3.10 from langchain_v1
- fix(openrouter): fix ChatOpenRouter timeout unit conversion
- [text-splitters] Dead code in HTMLSemanticPreservingSplitter._process_links() + markdown links broken at chunk boundaries
- core: count_tokens_approximately crashes on plain callables in tools= despite docstring
- core: filter_messages(exclude_tool_calls=[...]) does not remove invalid_tool_calls
- core: `batch`/`abatch` are typed `list[Output]` even with `return_exceptions=True`
- RouterRunnable batch ignores return_exceptions=True for unknown routes
- core: mustache dotted name inside a section falls back to an outer scope and renders unrelated data
- core: truncated tool-call arguments are parsed leniently after the stream ends, producing a valid-looking tool call
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- Python not yet supported