langchain-ai/langchain - langchain-ai/langchain

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langchain-ai/langchain latest releaselangchain-core==1.2.26

Safe upgrade Released 4 days ago

Changes since langchain-core==1.2.25

release(core): 1.2.26 (#36511) fix(core): add init validator and serialization mappings for Bedrock models (#34510) feat(core): add ChatBaseten to serializable mapping (#36510)

Diff stats+676-7433 filesMain areastestslibs.github/workflowsci

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chore(core): remove stale blockbuster allowlist for deleted context module (#36168)

5ffece5 2 weeks ago by @mdrxy

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chore(model-profiles): refresh model profile data (#36152)

936b0a6 2 weeks ago by @langchain-model-profile-bot[bot]

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fix(openai): support phase parameter (#36161)

900f8a3 2 weeks ago by @ccurme

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ci: add maintainer override to require-issue-link workflow (#36147)

64a848a 2 weeks ago by @mdrxy

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fix(openai): preserve namespace field in streaming function_call chunks (#36108)

7d05cfb 3 weeks ago by @jackjin1997

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#35244external

@iorlas 2/15/2026

@wrap_model_call: async functions fail type checking (missing async Protocol overload)

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#36414feature request openai external

@starcloud530 1 week ago

To support BytePlus's video functionality, implement lenient validation for the input.type field in OpenAI responses by checking if input.type == input_video to ensure compatibility with BytePlus.

1 comments

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#35931external

@shivamtiwari3 2 weeks ago

fix(core): ToolRuntime (@tool decorator) raises Pydantic ValidationError due to _DirectlyInjectedToolArg not filtered from inferred schema

2 comments

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#35900external

@roli-lpci 2 weeks ago

fix(core): shared mutable dict references in BaseLLM metadata_list construction

7 comments

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#35518core langchain feature request external

@mavdol 3/10/2026

Add Capsule to safely run untrusted code using WebAssembly sandboxes

7 comments

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#35628documentationcoreexternalsize: XSmissing-issue-link

@qinqining 3 weeks ago

docs(core): clarify supported formats for multimodal inputs in ModelProfile

0 reviews2 comments

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README

langchain-ai/langchain latest releaselangchain-core==1.2.26

Safe upgrade Released 4 days ago

Changes since langchain-core==1.2.25

release(core): 1.2.26 (#36511) fix(core): add init validator and serialization mappings for Bedrock models (#34510) feat(core): add ChatBaseten to serializable mapping (#36510)