langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- merge_message_runs is O(n^2) in run length for list/content-block messages
- OpenSearchVectorSearch should support custom index settings during index creation
- fix(core)!: include multimodal blocks in `get_buffer_string` prefix format
- feat(langchain-core): forward document metadata to embedding implementations to enable multimodal providers
- Handle partials in pretty_repr()
- First-party Agent Skills support in langchain (without depending on deepagents)
- `HumanInTheLoopMiddleware`: Support regex/glob patterns in `interrupt_on` tool name keys
- HTMLSectionSplitter leaks #TITLE# metadata and raises KeyError when parent metadata has no Title
- fix(langchain): make `write_todos` calls tool-only to stop duplicated plan text
- `RootModel` unions fail to deserialize well-known schema objects that override `__init__`
- Docs
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