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langchain-ai/langchain

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langchain-ai/langchain

langchain-ai/langchain

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release notes

langchain-core==1.2.12

release notes

Published 2/12/2026

Safe upgrade

Release notes

Changes since langchain-core==1.2.11

release(core): 1.2.12 (#35192) fix(core): fix setting ChatGeneration.text (#35191)

Diff stats+1408/-1129

44 files

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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-core==1.2.12

release notes

Published 2/12/2026

Safe upgrade

Release notes

Changes since langchain-core==1.2.11

release(core): 1.2.12 (#35192) fix(core): fix setting ChatGeneration.text (#35191)

Diff stats+1408/-1129

44 files

Main areaslibstests

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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