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LangSmith SDK 0.12.0

UpdateUnverifiedAdded Sep 24, 2026

- ci: enable CodSpeed flame graphs and pin the benchmarks to one CPU by Emil F (@emil-lc) in #3449 fix(py,js)!: make trace sampling deterministic by Emil F (@emil-lc) in #3183 fix(py): suppress import-untyped on the optional langsmith_pyo3 import by Quentin Brosse (@QuentinBrosse) in #3462 chore(py)!: swtich to httpx2 dependency while keeping httpx as a...

Topics: Developer tools

LangChain's release notes

More LangSmith releases

Every LangSmith release
DateRelease
Sep 1LangSmith SDK 0.12.1unverified
Update
Sep 5LangSmith SDK 0.12.2unverified
Update
Aug 27LangSmith SDK 0.11.2unverified
Update
Sep 9LangSmith SDK 0.12.4unverified
Update
Sep 9LangSmith SDK 0.12.3unverified
Update
Sep 15LangSmith SDK 0.12.5unverified
Update
Sep 16LangSmith SDK 0.12.6unverified
Update
Sep 18LangSmith SDK 0.13.0unverified
Update

Also shipped on Sep 1, 2026

LangChain in September 2026

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