PyPI · #301 most downloaded on PyPI

langsmith

0.13.0114M 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
18 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9 versions withdrawn
withdrawn after publishing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
531 releases · first in 2023

Release timeline

531 releases since 2023

2023202420252026

20232026

One column per quarter.

Releases

0.4.512 Dec 2025
release(py): 0.4.51 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2170
What's Changed

release(py): 0.4.51 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2170

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.50...v0.4.51
Open source →
0.4.502 Dec 2025
feat(js): Adds reroot support for replicas by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2155
What's Changed

feat(js): Adds reroot support for replicas by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2155

release(js): 0.3.82 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2164

suppport custom header in python client by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2167

bump version by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2168

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.49...v0.4.50
Open source →

0.4.4926 Nov 2025

fix(js): add reporter support for Vitest 4.x by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2156

What's Changed

fix(js): add reporter support for Vitest 4.x by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2156
fix(js): Vendor p-retry to avoid import issues by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2159
fix(python): Add back uuid5 to replica remapping by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2160
test(python): Add unit test for replica remapping by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2161
release(python): 0.4.49 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2162

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.48...v0.4.49

Open source →

0.4.4826 Nov 2025

chore(python): rewrite docstrings removing sphinx by @mdrxy in https://github.com/langchain-ai/langsmith-sdk/pull/2149

What's Changed

chore(python): rewrite docstrings removing sphinx by @mdrxy in https://github.com/langchain-ai/langsmith-sdk/pull/2149
fix(py): Pass limit into list_runs by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2157
release(py): 0.4.48 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2158

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.47...v0.4.48

Open source →

0.4.4724 Nov 2025

fix(claude agent sdk): remove thread local storage by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2152

What's Changed

fix(claude agent sdk): remove thread local storage by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2152
bump(python): 0.4.47 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2153

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.46...v0.4.47

Open source →

0.4.4621 Nov 2025

Fix(python): Return wrapper for stream enter by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2143

What's Changed

Fix(python): Return wrapper for stream enter by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2143
chore: Remove uuid7 warnings from sdks by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2146
bump(py, js): bump versions by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2147

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.45...v0.4.46

Open source →

0.4.4520 Nov 2025

feat(python): Claude agent sdk subagent handling by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2125

What's Changed

feat(python): Claude agent sdk subagent handling by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2125
feat(python): Add bounded queue size to compressed tracing queue by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2141
Xin/js ci cd by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2139
release(py): 0.4.45 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2142

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.44...v0.4.45

Open source →

0.4.4420 Nov 2025

feat(js): Adds maximum queue size by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2132

What's Changed

feat(js): Adds maximum queue size by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2132
feat(js): Increase max retries by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2130
release(js): 0.3.80 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2133
fix(js): Adds more retryable statuses by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2135
fix(py): Add fallback for failed attachment downloads by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2136
release(py): 0.4.44 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2137

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.43...v0.4.44

Open source →

0.4.4315 Nov 2025

v2 API Changes by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2103

What's Changed

v2 API Changes by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2103
feat: wrap_gemini beta python by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2059
feat(py): add metadata helper by @bees in https://github.com/langchain-ai/langsmith-sdk/pull/2115

New Contributors

@bees made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2115

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.42...v0.4.43

Open source →

0.4.43rc014 Nov 2025pre-release

v2 API Changes by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2103

What's Changed

v2 API Changes by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2103
feat: wrap_gemini beta python by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2059

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.42...v0.4.43rc0

Open source →

0.4.429 Nov 2025

feat(py): add sdk methods for insights agent by @ads2280 in https://github.com/langchain-ai/langsmith-sdk/pull/2087

What's Changed

feat(py): add sdk methods for insights agent by @ads2280 in https://github.com/langchain-ai/langsmith-sdk/pull/2087
feat(js): Trace AI SDK experimental_output similarly to generate/streamObject by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2117
release(js): 0.3.79 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2118
fix(py): pairwise eval concurrency by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2114
release(py): 0.4.42 by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2119

New Contributors

@ads2280 made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2087

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.41...v0.4.42

Open source →

0.4.42rc010 Nov 2025pre-release

feat(py): add sdk methods for insights agent by @ads2280 in https://github.com/langchain-ai/langsmith-sdk/pull/2087

What's Changed

feat(py): add sdk methods for insights agent by @ads2280 in https://github.com/langchain-ai/langsmith-sdk/pull/2087
feat(js): Trace AI SDK experimental_output similarly to generate/streamObject by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2117
release(js): 0.3.79 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2118
fix(py): pairwise eval concurrency by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2114
release(py): 0.4.42 by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2119

New Contributors

@ads2280 made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2087

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.41...v0.4.42rc0

Open source →

0.4.414 Nov 2025

fix(python): reduce memory of pending traces by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2107

What's Changed

fix(python): reduce memory of pending traces by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2107
feat(js): Allow tracing steps in AI SDK wrappers, fix processOutputs type by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2106
fix(js): Avoid dropped runs if id: undefined is passed to traceable by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2109
release(js): 0.3.78 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2108
chore(python): bump patch version by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2110

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.40...v0.4.41

Open source →

0.4.404 Nov 2025

release(js): 0.3.77 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2101

What's Changed

release(js): 0.3.77 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2101
feat(python): Fix claude tool tracing by using hooks by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2102
feat(py,js): Trace responses.parse properly in OpenAI wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2105
release(py): 0.4.40 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2104

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.39...v0.4.40

Open source →

0.4.391 Nov 2025

feat(js): traceable types for processInputs and processOutputs by @zirkelc in https://github.com/langchain-ai/langsmith-sdk/pull/1593

What's Changed

feat(js): traceable types for processInputs and processOutputs by @zirkelc in https://github.com/langchain-ai/langsmith-sdk/pull/1593
release(js): 0.3.75 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2089
fix(js): Allow async process outputs for AI SDK generate methods by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2093
release(js): 0.3.76 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2095
feat(py,js): Adds ls_invocation_params to client wrappers by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2098
release(py): 0.4.39 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2100
release(js): 0.3.77 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2101

New Contributors

@zirkelc made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1593

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.38...v0.4.39

Open source →

0.4.39rc131 Oct 2025pre-release

feat(js): traceable types for processInputs and processOutputs by @zirkelc in https://github.com/langchain-ai/langsmith-sdk/pull/1593

What's Changed

feat(js): traceable types for processInputs and processOutputs by @zirkelc in https://github.com/langchain-ai/langsmith-sdk/pull/1593
release(js): 0.3.75 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2089
fix(js): Allow async process outputs for AI SDK generate methods by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2093
release(js): 0.3.76 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2095

New Contributors

@zirkelc made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1593

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.38...v0.4.39rc1

Open source →

0.4.39rc030 Oct 2025pre-release

feat(js): traceable types for processInputs and processOutputs by @zirkelc in https://github.com/langchain-ai/langsmith-sdk/pull/1593

What's Changed

feat(js): traceable types for processInputs and processOutputs by @zirkelc in https://github.com/langchain-ai/langsmith-sdk/pull/1593
release(js): 0.3.75 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2089
fix(js): Allow async process outputs for AI SDK generate methods by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2093
release(js): 0.3.76 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2095

New Contributors

@zirkelc made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1593

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.38...v0.4.39rc0

Open source →

0.4.3823 Oct 2025

feat: add batching to create_examples by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2047

What's Changed

feat: add batching to create_examples by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2047
fix(python): Correctly check distributed tracing headers by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2079
chore: update description to reflect new marketing names by @mdrxy in https://github.com/langchain-ai/langsmith-sdk/pull/2080
fix(python): Fix CI by bumping deps by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2081
fix(python): remove ciruclar import from openai agents sdk by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2086

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.37...v0.4.38

Open source →

0.4.3514 Oct 2025Deprecated

chore: deprecate select child_run_ids in list_runs by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2066

What's Changed

chore: deprecate select child_run_ids in list_runs by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2066
chore(python): Skip /info calls when using OTEL-only tracing by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2069
fix(js): Fix token tracking for OpenAI Responses API wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2072
feat(python): OpenAI Agents Tracing Interoperability by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2070

New Contributors

@QuentinBrosse made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2066

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.34...v0.4.35

Open source →

0.4.35rc112 Oct 2025pre-releaseDeprecated

chore: deprecate select child_run_ids in list_runs by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2066

What's Changed

chore: deprecate select child_run_ids in list_runs by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2066

New Contributors

@QuentinBrosse made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2066

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.34...v0.4.35rc1

Open source →

0.4.349 Oct 2025

feat(js): Cache relevant env vars on client initialization for perf by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2061

What's Changed

feat(js): Cache relevant env vars on client initialization for perf by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2061
Format openai agents span outputs by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2065

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.33...v0.4.34

Open source →

0.4.337 Oct 2025

release(js): 0.3.72 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2053

What's Changed

release(js): 0.3.72 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2053
fix(python): Set llm OAI agent SDK spans to parent name for filtering by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2054
fix(py): return session feedback with experiment results by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2049
fix ugly rendering of 'omit' in UI due to incorrect strip by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2057
feat(py): Dedupe examples purely by dataset_id and input/output content rather than by test name by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2050
release(py): 0.4.33 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2060

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.32...v0.4.33

Open source →

0.4.323 Oct 2025

fix: docstring of get_expeirment_results by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2038

What's Changed

fix: docstring of get_expeirment_results by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2038
fix(js): Make JS client respect max ops size limit by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2041
chore(js): Remove log by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2042
Non-beta parse awareness in the OpenAI wrapper by @cr-klarna in https://github.com/langchain-ai/langsmith-sdk/pull/2012
fix(js): Copy object prototype when copying tools in AI SDK wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2051
release(py): 0.4.32 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2052
release(js): 0.3.72 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2053

New Contributors

@cr-klarna made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2012

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.31...v0.4.32

Open source →

0.4.3125 Sept 2025

fix(py): Inherit project name from parent for OpenAI agent wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2037

What's Changed

fix(py): Inherit project name from parent for OpenAI agent wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2037

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.30...v0.4.31

Open source →

0.4.2918 Sept 2025

fix(js): Fix output processing for AI SDK streamText by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2027

What's Changed

fix(js): Fix output processing for AI SDK streamText by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2027
release(js): 0.3.69 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2028
feat(py): new get_experiment_results() endpoint by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2021
version bump after new method 0.4.29 by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2031

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.28...v0.4.29

Open source →

0.4.2815 Sept 2025

Don't compress patches when manually configuring api_key by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2013

What's Changed

Don't compress patches when manually configuring api_key by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2013
feat(js): Backport new wrapper support to AI SDK 4 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2015
fix(py): include missing attributes in traces (extra, error, serialized) by @ng-plurai in https://github.com/langchain-ai/langsmith-sdk/pull/2017
fix: Store ended span to reserve parent span context by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2020

New Contributors

@ng-plurai made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2017

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.27...v0.4.28

Open source →

0.4.268 Sept 2025

fix(js): Fix retries for empty bodies by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2003

What's Changed

fix(js): Fix retries for empty bodies by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2003
chore[py]: test py3.13 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2004
feat: support pushing structured prompts back as they're pulled by @madams0013 in https://github.com/langchain-ai/langsmith-sdk/pull/1953
feat(python): Otel developer improvements by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2001

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.25...v0.4.26

Open source →

0.4.254 Sept 2025

fix: storage of already ended spans causes memory growth by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/1998

What's Changed

fix: storage of already ended spans causes memory growth by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/1998
release(py): 0.4.25 by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2000

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.24...v0.4.25

Open source →

0.4.244 Sept 2025Deprecated

chore(js): Deprecate very old AI SDK OTEL tracing by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1995

What's Changed

update SDK readme for org-scoped API keys by @keshivtandon in https://github.com/langchain-ai/langsmith-sdk/pull/1994
chore(js): Deprecate very old AI SDK OTEL tracing by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1995
feat(js,py): Add OpenAI service tier to input and output token details by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1967
release(js): 0.3.67 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1997
feat: add metadata into dataset pydantic schema by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/1943
fix(python): Set project name on run update for oai agent sdk by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1999

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.23...v0.4.24

Open source →

0.4.232 Sept 2025

fix(python): Correctly recognize attachment with stringified annotations by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/199

What's Changed

fix(python): Correctly recognize attachment with stringified annotations by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1990
release(py): 0.4.23 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1993

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.22...v0.4.23

Open source →

0.4.222 Sept 2025

fix(js): Allow passing partial args to distributed tracing run tree by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1989

What's Changed

fix(js): Allow passing partial args to distributed tracing run tree by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1989
feat(py,js): Add include stats param to listProjects by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1991
release(py): 0.4.22 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1992

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.21...v0.4.22

Open source →

0.4.2129 Aug 2025

release(js): 0.3.65 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1974

What's Changed

release(js): 0.3.65 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1974
fix(js): Fix wrapOpenAI finish_reason tracing by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1976
feat(py,js): Adds split parameter to test runners, metadata to Jestlike by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1977
fix(js): Remove validation of usage metadata params by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1980
fix(js): Only take metadata into account when updating in example if provided for Vitest runner by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1981
release(js): 0.3.66 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1982
ci(py): Add format job to Python CI by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1983
fix: memory leak risk from otel exporter persistance by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/1979
feat(py): Allow overriding max batch size parameter on client, fix for disabled run compression by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1985
release(py): 0.4.21 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1986

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.20...v0.4.21

Open source →

0.4.2028 Aug 2025

feat: update SDK for org-scoped keys by @keshivtandon in https://github.com/langchain-ai/langsmith-sdk/pull/1920

What's Changed

feat: update SDK for org-scoped keys by @keshivtandon in https://github.com/langchain-ai/langsmith-sdk/pull/1920
feat(pythong): allow nested openai agent tracing by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1971
fix(python): Avoid resetting operation.name to "chain" during update_run by @qnnn in https://github.com/langchain-ai/langsmith-sdk/pull/1861
fix(js): specify "Content-Type" for getRunStats to avoid parsing errors by @szedelenyi in https://github.com/langchain-ai/langsmith-sdk/pull/1598
feat(py): Add support system qwen to OTEL attributes by @dubin555 in https://github.com/langchain-ai/langsmith-sdk/pull/1717
feat(js): add datasetVersion parameter to listProjects by @tendev-eoghan in https://github.com/langchain-ai/langsmith-sdk/pull/1391
Pass multiple run ids to listFeedbacks correctly by @airhorns in https://github.com/langchain-ai/langsmith-sdk/pull/1465
feat(py): Fix list_projects typing, add dataset_version param by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1973
feat(js): Allow manually specifying ids for examples in Jestlike runners by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1972
feat(js): Add current repetition property to jestlike test wrapper by @tendev-liam in https://github.com/langchain-ai/langsmith-sdk/pull/1856
release(py): 0.4.20 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1975

New Contributors

@keshivtandon made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1920
@qnnn made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1861
@szedelenyi made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1598
@dubin555 made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1717
@airhorns made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1465

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.19...v0.4.20

Open source →

0.4.1927 Aug 2025

release(js): 0.3.64 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1964

What's Changed

release(js): 0.3.64 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1964
fix(py): Disable API key warnings if tracing is disabled by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1965
fix(python): Alleviate memory pressue from zstd flush by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1966

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.18...v0.4.19

Open source →

0.4.1826 Aug 2025

fix(py,js): Trace AzureOpenAI clients with proper provider for playground by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1961

What's Changed

fix(py,js): Trace AzureOpenAI clients with proper provider for playground by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1961
fix(js): Fix multipart tracing for Bun by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1960
release(py): 0.4.18 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1963

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.17...v0.4.18

Open source →

0.4.1726 Aug 2025

fix(js): Allow null to be passed as a first arg to traceable by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1959

What's Changed

fix(js): Allow null to be passed as a first arg to traceable by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1959
fix: move otel check to client init time to avoid timing issue by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/1958

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.16...v0.4.17

Open source →

0.4.1622 Aug 2025

fix(py): adjust traceable reduce_fn type to allow returning str by @xl0 in https://github.com/langchain-ai/langsmith-sdk/pull/1950

What's Changed

fix(py): adjust traceable reduce_fn type to allow returning str by @xl0 in https://github.com/langchain-ai/langsmith-sdk/pull/1950
fix(js): Fix retry issues by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1947
fix(js): Turn down default max batch size by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1954
release(js): 0.3.63 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1955
fix(python): Correctly set multipart operatios in replica mode by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1956

New Contributors

@xl0 made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1950

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.15...v0.4.16

Open source →

0.4.1520 Aug 2025

feat(js): Allow async processOutputs methods for traceables by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1928

What's Changed

feat(js): Allow async processOutputs methods for traceables by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1928
fix(py): Pass 'project_name' to _get_parent_run method by @yakir-nevona in https://github.com/langchain-ai/langsmith-sdk/pull/1927
feat(js): Adds time to first token for new AI SDK wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1930
fix(js): Only inherit specific properties for child runs in AI SDK wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1931
fix(js): Copy tool def instead of mutating by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1937
feat(js): Improve tracing for multimodal AI SDK runs by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1938
feat(js): Trace AI SDK request/response fields in LLM response by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1939
chore(py): correct references to langchain-core and hyperlink by @mdrxy in https://github.com/langchain-ai/langsmith-sdk/pull/1936
feat(python): Pass api config through background thread by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1940
fix(js): Avoid double wrapping AI SDK tool functions if already wrapped by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1942
fix(js): Fix typing for AI SDK stream methods by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1941
feat(js): Allow passing runtime LangSmith config to AI SDK wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1944
feat(js): Compress multipart batches before sending, avoid sending inputs in patch if not necessary by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1945
feat(py): Adds process_buffered_run_ops method to Python SDK by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1932

New Contributors

@yakir-nevona made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1927
@mdrxy made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1936

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.14...v0.4.15

Open source →

0.4.1412 Aug 2025

fix(js): Revert legacy AI SDK dotted order changes by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1907

What's Changed

fix(js): Revert legacy AI SDK dotted order changes by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1907
fix(js): Revert "feat(js): Adds dotted order to traced OTEL spans (#1876)" by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1909
release(js): 0.3.53 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1910
chore: Replace ts-expect-error directives with casts by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1913
fix(js): Use start time from dotted order as canonical for legacy AI SDK exporter by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1912
feat(js): Allow use of new AI SDK processor with old exporter by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1914
release(js): 0.3.55 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1915
fix(js): Allow direct wrapping of Jest/vitest methods, fix module resolution by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1919
chore(python): Cleanup replica setting by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1921
perf(python, js): Pop all allowed oob keys by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1923
chore(python): fix tests by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1925
feat(js): Non-OTEL version of AI SDK tracing by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1926
fix(py): attachments url construction by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/1929

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.13...v0.4.14

Open source →

0.4.136 Aug 2025

Fix OpenAI Agents SDK wrapper token count extraction by @siviter-t in https://github.com/langchain-ai/langsmith-sdk/pull/1906

What's Changed

Fix OpenAI Agents SDK wrapper token count extraction by @siviter-t in https://github.com/langchain-ai/langsmith-sdk/pull/1906
fix(python): legacy replicas conversion by @lc-arjun in https://github.com/langchain-ai/langsmith-sdk/pull/1908

New Contributors

@siviter-t made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1906

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.12...v0.4.13

Open source →

0.4.126 Aug 2025

fix(ci): Allow 429s for markdown link checks in CI by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1895

What's Changed

fix(ci): Allow 429s for markdown link checks in CI by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1895
feat(py): add Run.latency by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/1745
fix(js): Ensure dotted order and start time is always greater than parent start time for legacy AI SDK exporter by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1903
chore(python): Remove langsmith dotted order attribute from otel integration by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1904

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.11...v0.4.12

Open source →

0.4.115 Aug 2025

chore: Run ruff by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1894

What's Changed

chore: Run ruff by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1894
Adopt pagination to list_shared_examples to ensure all data returned by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/1893
feat(python, js): Support tracing to multiple orgs/workspaces by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1899

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.10...v0.4.11

Open source →

0.4.101 Aug 2025

feat(python): Add replica endpoints support to Python SDK by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1877

What's Changed

feat(python): Add replica endpoints support to Python SDK by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1877
feat(python): Add distributed tracing with sliced traces for child projects by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1884
feat(py): return feedback notes in get_test_results by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/1873
chore: Convert dev workflow to uv by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1885
chore(py): Format lockfile by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1887
fix(python): Remove upper bound for OpenAI agents by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1883
fix(py): Make replica tests properly restore env vars to reduce flakiness by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1888
fix(py): Missed test causing flakes by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1889
fix(py): Reset env causing unit test flake by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1890
Remove black dependency and update lock file by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/1892
feat(py): Adds new cached_hosts parameter to vcrpy caching by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1878
fix(py): Remove monkeypatching and ensure env var cache is cleared by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1891
release(py): 0.4.10 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1896

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.9...v0.4.10

Open source →

0.4.931 Jul 2025

feat(js): Update AI SDK tracing for v5 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1863

What's Changed

feat(js): Update AI SDK tracing for v5 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1863
feat: Configure by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/1859
fix (js): include env var metadata in patch by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/1867
release(js): 0.3.48 by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/1868
feat(js): Respect LANGSMITH_OTEL_ENABLED env var, allow skipping global context manager setup, skip non-traceable spans by default by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1870
feat(js): Adds dotted order to traced OTEL spans by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1876
chore(python): deflake ci by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1872
fix(js): Respect Anthropic 1h caching usage for AI SDK 5 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1879
patch(python, js): Fix sampling logic for patch runs by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1881

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.8...v0.4.9

Open source →

0.4.818 Jul 2025

fix(python): Fix update_examples improperly overriding inputs/outputs for multipart endpoint by @jacoblee93 in https://github.com/langchain-ai/langsmi

What's Changed

fix(python): Fix update_examples improperly overriding inputs/outputs for multipart endpoint by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1860

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.7...v0.4.8

Open source →

0.4.717 Jul 2025

fix(js): Make readDataset throw if empty string is passed by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1853

What's Changed

fix(js): Make readDataset throw if empty string is passed by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1853
fix(js): Fallback to parent run id if parent run is not present in run trees loaded from LangChain by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1854
Safer module check by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/1857

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.6...v0.4.7

Open source →

0.4.615 Jul 2025

If stream fails, fallback to buffered body request by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1845

What's Changed

If stream fails, fallback to buffered body request by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1845
fix(js): Fix replica updates by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1848
feat(js): Support feedback attribution for OTEL evaluations by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1847
fix(js): Propagate microseconds added in dotted order conversion to run tree start time by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1849
fix(js): Respect project names set at runtime for OTEL exported traces by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1850
feat(python): Add repetitions support to pytest, rename in JS by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1852

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.5...v0.4.6

Open source →

0.4.510 Jul 2025

feat(js): Add OTEL support by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1814

What's Changed

feat(js): Add OTEL support by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1814
feat(js): Export passed AI SDK metadata as LangSmith metadata by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1819
Reduce zstd compression level to 1 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1820
feat(js): Add transform span method to exporter, allow setting run name by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1821
fix(js): Use context placeholder to preserve LangChain context variables even if tracing is disabled by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1822
fix(js): Fix types and add responses and completions.parse support for wrapOpenAI by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1823
release(js): 0.3.38 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1824
fix(js): Fix AI SDK token counting issues for legacy exporter by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1825
feat(js): Make traced AI SDK runs respect provider metadata by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1826
feat(js): Add reference_example_id attribute to OTEL runs by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1836
[open-swe] fix: improve serialization of Maps and complex objects in traces by @open-swe[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/1835
release(js): 0.3.41 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1837
fix(js): Add endpoint shim to example upload by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1839
Add runs endpoints env to replicas by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/1830
release(js): 0.3.42 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1842
feat(python): Populate example metadata in pytest, prefix experiment runs with ls_example by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1840

New Contributors

@open-swe[bot] made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1835

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.4...v0.4.5

Open source →

0.4.327 Jun 2025

feat(js): Allow suppressing circular JSON warnings by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1815

What's Changed

feat(js): Allow suppressing circular JSON warnings by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1815
fix(py): loosen pydantic dep by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/1816

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.2...v0.4.3

Open source →

0.4.225 Jun 2025

Add agent instructions for Python SDK by @nfcampos in https://github.com/langchain-ai/langsmith-sdk/pull/1776

What's Changed

Add agent instructions for Python SDK by @nfcampos in https://github.com/langchain-ai/langsmith-sdk/pull/1776
Fix some issues w running codex in this repo by @nfcampos in https://github.com/langchain-ai/langsmith-sdk/pull/1777
Fix race for cached client initialization by @nfcampos in https://github.com/langchain-ai/langsmith-sdk/pull/1778
Handle missing attachment files gracefully by @nfcampos in https://github.com/langchain-ai/langsmith-sdk/pull/1782
fix(js): Fix JSDom check for Node 22 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1784
Cache request settings for Client by @nfcampos in https://github.com/langchain-ai/langsmith-sdk/pull/1787
chore: auto-label issues with 'sdk' label by @madams0013 in https://github.com/langchain-ai/langsmith-sdk/pull/1791
Store only the first new_token event by @nfcampos in https://github.com/langchain-ai/langsmith-sdk/pull/1779
fix(js): Pass events through on run create by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1794
fix(js): Avoid overwriting runtime if already set by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1795
feat(js): Add replica support for JS by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1796
release(js): 0.3.32 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1797
add util for getting project name from env var by @lc-arjun in https://github.com/langchain-ai/langsmith-sdk/pull/1801
patch[python]: Only set replica updates on patch by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1798
feat[python]: Trace to multiple projects with distributed tracing by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1804
feat[python]: Enable OpenTelemetry trace context propagation by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1805
chore(deps): bump protobuf from 5.29.4 to 5.29.5 in /python by @dependabot in https://github.com/langchain-ai/langsmith-sdk/pull/1807
feat(py): add evaluate(..., error_handling="ignore") by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/1774

New Contributors

@lc-arjun made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1801

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.1...v0.4.2

Open source →

0.4.010 Jun 2025

feat: OTEL_ENABLED mode sends to both otel and ls, while allowing otel only through OTEL_ONLY var by @EugeneJinXin in https://github.com/langchain-ai/

What's Changed

feat: OTEL_ENABLED mode sends to both otel and ls, while allowing otel only through OTEL_ONLY var by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/1762

New Contributors

@EugeneJinXin made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1762

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.3.45...v0.4.0

Open source →

0.3.455 Jun 2025

release(js): 0.3.30 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/1766

What's Changed

release(js): 0.3.30 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/1766
fix(py): Fix URL construction in attachment downloading by @anceschia in https://github.com/langchain-ai/langsmith-sdk/pull/1759
feat[python]: enable tracing to multiple projects by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/1770

New Contributors

@anceschia made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/1759

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.3.44...v0.3.45

Open source →

0.3.442 Jun 2025

feat(python,js): Add run tree method for setting usage by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1746

What's Changed

feat(python,js): Add run tree method for setting usage by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/1746
release(py): 0.3.44 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/1765

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.3.43...v0.3.44

Open source →