PyPI · #301 most downloaded on PyPI

langsmith

0.14.0114M downloads/molangchain-ai/langsmith-sdk ↗New releases in your daily digest, changelog included.

Client library to connect to the LangSmith Observability and Evaluation Platform.

Last release 2 days ago
21 Sep 2026
Ships on a steady schedule
a new release about every 9 days
Nearly every release is documented
notes for 60 of the last 60 stable releases
9 versions withdrawn
withdrawn after publishing
3 years old
532 releases · first in 2023

Release timeline

532 releases since 2023

2023202420252026

20232026

One column per quarter.

Releases

0.1.11912 Sept 2024
fix(js): Fix overzealous circular reference detection by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/998
What's Changed

fix(js): Fix overzealous circular reference detection by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/998

[Python] Dynamic async evaluator for langchain off-the-shelf by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/1001

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.118...v0.1.119
Open source →
0.1.11811 Sept 2024
feat(js): Allow overriding fetch implementation used by LangSmith by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/989
What's Changed

feat(js): Allow overriding fetch implementation used by LangSmith by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/989

fix(js): Adds fix for circular references in inputs and outputs by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/985

chore(js): Release 0.1.53 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/990

Pydocs by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/991

Stop masking project creation errors by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/992

[Python:fix] In aevaluate, ensure thread to submit feedback remains open by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/995

[Python] 0.1.119 by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/996

0.1.118 by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/997

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.117...v0.1.118

0.1.1179 Sept 2024

[Py] Lazy client initialization in run tree by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/983

What's Changed

[Py] Lazy client initialization in run tree by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/983
Add arg in create_example by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/987

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.116...v0.1.117

Open source →

0.1.1166 Sept 2024

Exclude non-prompt|llm manifests by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/980

What's Changed

Exclude non-prompt|llm manifests by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/980

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.115...v0.1.116

Open source →

0.1.116rc15 Sept 2024pre-release

Nothing published for this version

0.1.1155 Sept 2024

[Python] Evals: submit feedback in thread by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/977

What's Changed

[Python] Evals: submit feedback in thread by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/977
feat: few shot example filtering in js by @jakerachleff in https://github.com/langchain-ai/langsmith-sdk/pull/975
Rm thread for blocking eval by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/979

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.114...v0.1.115

Open source →

0.1.115rc15 Sept 2024pre-release

Nothing published for this version

0.1.115rc05 Sept 2024pre-release

Nothing published for this version

0.1.1145 Sept 2024

feat: metadata filters for few shot by @jakerachleff in https://github.com/langchain-ai/langsmith-sdk/pull/974

What's Changed

feat: metadata filters for few shot by @jakerachleff in https://github.com/langchain-ai/langsmith-sdk/pull/974

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.113...v0.1.114

Open source →

0.1.1134 Sept 2024

[Python] Log content-length during connection errors by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/972

What's Changed

[Python] Log content-length during connection errors by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/972

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.112...v0.1.113

Open source →

0.1.1124 Sept 2024

[Python] Cache env var check by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/971

What's Changed

[Python] Cache env var check by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/971

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.111...v0.1.112

Open source →

0.1.1114 Sept 2024

Ensure if null by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/969

What's Changed

Ensure if null by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/969
Raise exception for empty response from dynamic evaluator by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/959

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.110...v0.1.111

Open source →

0.1.1103 Sept 2024

[Python] Async create feedback from token by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/960

What's Changed

[Python] Async create feedback from token by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/960

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.109...v0.1.110

Open source →

0.1.1093 Sept 2024

Filter child runs where trace has been filtered by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/964

What's Changed

Filter child runs where trace has been filtered by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/964

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.108...v0.1.109

Open source →

0.1.10831 Aug 2024

Filter Root (not children) by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/961

What's Changed

Filter Root (not children) by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/961

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.107...v0.1.108

Open source →

0.1.108rc029 Aug 2024pre-release

Nothing published for this version

0.1.10729 Aug 2024

Optimize CPU-bound Task Execution by Replacing Thread Lock with Producer-Consumer Pattern by @adham-elarabawy in https://github.com/langchain-ai/langs

What's Changed

Optimize CPU-bound Task Execution by Replacing Thread Lock with Producer-Consumer Pattern by @adham-elarabawy in https://github.com/langchain-ai/langsmith-sdk/pull/957
[Python] 0.1.107 Release queue for experiment results by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/958

New Contributors

@adham-elarabawy made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/957

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.106...v0.1.107

Open source →

0.1.10627 Aug 2024

[JS] Fix summary evaluator result logging by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/955

What's Changed

[JS] Fix summary evaluator result logging by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/955
[Py] Warn if api key not provided by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/956

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.1.105...v0.1.106

Open source →

0.1.10527 Aug 2024

Nothing published for this version

0.1.10423 Aug 2024

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0.1.10322 Aug 2024

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0.1.10222 Aug 2024

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0.1.10121 Aug 2024

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0.1.10020 Aug 2024withdrawn: Run name updates were added before names were inferred in creating a run tree from langchain code, making nested langchain code all have a 'parent' name.

Nothing published for this version

0.1.9911 Aug 2024

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0.1.99rc16 Aug 2024pre-release

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0.1.986 Aug 2024

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0.1.976 Aug 2024

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0.1.962 Aug 2024

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0.1.9531 Jul 2024

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0.1.9430 Jul 2024

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0.1.9320 Jul 2024

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0.1.9218 Jul 2024

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0.1.9118 Jul 2024

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0.1.9017 Jul 2024

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0.1.8917 Jul 2024

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0.1.8817 Jul 2024

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0.1.8716 Jul 2024

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0.1.8616 Jul 2024

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0.1.8510 Jul 2024

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0.1.848 Jul 2024

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0.1.832 Jul 2024

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0.1.8224 Jun 2024

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0.1.8119 Jun 2024

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0.1.8018 Jun 2024

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0.1.7918 Jun 2024

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0.1.7817 Jun 2024

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0.1.7712 Jun 2024

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0.1.7611 Jun 2024

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0.1.756 Jun 2024

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0.1.746 Jun 2024

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0.1.735 Jun 2024

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0.1.725 Jun 2024

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0.1.714 Jun 2024

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0.1.704 Jun 2024

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0.1.694 Jun 2024

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0.1.683 Jun 2024

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0.1.6731 May 2024

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0.1.6631 May 2024

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0.1.6530 May 2024withdrawn: When streaming llm tokens, since RunTree events default to null, LangChain core will raise an error

Nothing published for this version

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