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langchain-ai/langchain

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langchain-ai/langchain

langchain-ai/langchain

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langchain-core==1.2.19

release notes

Published 3/13/2026

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Changes since langchain-core==1.2.18

release(core): 1.2.19 (#35832) chore(core): move BaseCrossEncoder to langchain-core (#35809) chore: bump tornado from 6.5.2 to 6.5.5 in /libs/core (#35775)

Diff stats+2781/-253

49 files

Main areaslibs.github/workflowstestsciconfig

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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==1.2.19

release notes

Published 3/13/2026

Release notes

Changes since langchain-core==1.2.18

release(core): 1.2.19 (#35832) chore(core): move BaseCrossEncoder to langchain-core (#35809) chore: bump tornado from 6.5.2 to 6.5.5 in /libs/core (#35775)

Diff stats+2781/-253

49 files

Main areaslibs.github/workflowstestsciconfig

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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