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langchain-ai/langchain

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langchain-ai/langchain

langchain-ai/langchain

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langchain==1.2.6

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Published 1/16/2026

Safe upgrade

Release notes

Changes since langchain==1.2.5

release(langchain): 1.2.6 (#34781) fix(langchain): SummarizationMiddleware signature mismatch & config invocation (#34775)

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langchain-ai/langchain

The agent engineering platform

https://docs.langchain.com/langchain/

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Version langchain-core==1.2.26is out. See relase notes.

langchain==1.2.6

release notes

Published 1/16/2026

Safe upgrade

Release notes

Changes since langchain==1.2.5

release(langchain): 1.2.6 (#34781) fix(langchain): SummarizationMiddleware signature mismatch & config invocation (#34775)

langchain-ai/langchain

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langchain-ai/langchain

The agent engineering platform

https://docs.langchain.com/langchain/

agentsaiai-agentsanthropicchatgptdeepagentsenterpriseframeworkgeminigenerative-ailangchainlanggraphllmmultiagentopen-sourceopenaipydanticpythonrag

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