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langchain-ai / langchain Public

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🔧 CI

feat(langchain): support `SystemMessage` in `create_agent`'s `system_… #49474

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feat(langchain): support `SystemMessage` in `create_agent`'s `system_…

feat(langchain): support `SystemMessage` in `create_agent`'s `system_… #49474

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Usage Workflow file

test-pydantic (libs/langchain_v1, 2.9.0, 3.12) / Pydantic ~=2.9.0

test-pydantic (libs/langchain_v1, 2.9.0, 3.12) / Pydantic ~=2.9.0

succeeded Nov 24, 2025 in 30s

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