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LangChain/LangChain.js/langchain@1.4.2

langchain@1.4.2

May 21, 2026LangChain.jsView original ↗2 fixes

Patch Changes

#10900 6bbddca Thanks @christian-bromann! - fix(langchain): unwrap tool message outputs in agent streams
#10706 4ecb660 Thanks @JadenKim-dev! - fix(langchain): set name on todoListMiddleware ToolMessages

Fetched May 22, 2026