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langchain-ai / langchain Public

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🔧 CI

feat(langchain): support `SystemMessage` in `create_agent`'s `system_prompt` #49473

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

feat(langchain): support `SystemMessage` in `create_agent`'s `system_prompt` #49473

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Extended Tests (libs/langchain_v1, 3.10)

Extended Tests (libs/langchain_v1, 3.10)

succeeded Nov 24, 2025 in 28s

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