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 today
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9 versions withdrawn
withdrawn after publishing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

0.7.3524 Apr 2026
fix: patch 2 security alerts (high severity) by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2756
What's Changed

fix: patch 2 security alerts (high severity) by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2756

feat(python): add Hub agent/skill methods on Client and AsyncClient by @vishnu-ssuresh in https://github.com/langchain-ai/langsmith-sdk/pull/2746

feat(js): add agent/skill hub methods on Client with unit tests by @vishnu-ssuresh in https://github.com/langchain-ai/langsmith-sdk/pull/2747

fix(py): suppress Pydantic serialization warnings for ParsedBetaMessage in wrap_anthropic by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2783

release(py): 0.7.35 by @vishnu-ssuresh in https://github.com/langchain-ai/langsmith-sdk/pull/2785

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.34...v0.7.35
Open source →
0.7.3423 Apr 2026
feat(js): add hideMetadata support by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2720
What's Changed

feat(js): add hideMetadata support by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2720

chore(deps-dev): bump types-requests from 2.33.0.20260327 to 2.33.0.20260408 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2741

chore(deps-dev): bump @anthropic-ai/sdk from 0.89.0 to 0.90.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2731

chore(deps): bump authlib from 1.6.9 to 1.6.11 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2732

chore(deps): bump the py-minor-and-patch group across 1 directory with 13 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2752

chore(deps-dev): bump the js-minor-and-patch group across 1 directory with 10 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2753

chore(deps-dev): bump google-adk from 1.14.1 to 1.28.1 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2755

chore(deps-dev): bump langchain-openai from 1.1.12 to 1.1.14 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2730

chore(deps): bump websockets from 15.0.1 to 16.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2510

fix(js/sandbox): clone Response before consuming body in error handlers by @ramon-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2760

feat(js): Adds OpenAI Agents JS SDK wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2763

chore(python): remove templates, pools, and volumes by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2757

feat(python-sandbox): support snapshot_name and list filters by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2769

chore(js): remove templates, pools, and volumes from sandbox SDK by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2758

feat(js-sandbox): support snapshotName and list filters by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2770

fix(js): Update logged client string representations to hide API key by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2772

release(js): 0.5.22 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2774

ci(python): Use cassettes for Google integration tests by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2771

fix(python): Update Python async and sandbox client reprs by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2773

feat(py): Adds runtime overrides for updating internal methods by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2766

feat: add Context schemas for agent/skill/file hub repos by @vishnu-ssuresh in https://github.com/langchain-ai/langsmith-sdk/pull/2745

chore(js): Consolidate and cut down on integration tests by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2775

release(py): 0.7.34 by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2778

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.33...v0.7.34

0.7.3320 Apr 2026

chore(deps-dev): bump @anthropic-ai/sdk from 0.88.0 to 0.89.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2724

What's Changed

chore(deps-dev): bump @anthropic-ai/sdk from 0.88.0 to 0.89.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2724
python: pass OTEL config directly to exporter instead of setting env vars by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2726
chore(deps): bump mako from 1.3.10 to 1.3.11 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2729
fix(js): move jest retry config to runtime setup file by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2733
feat(sandbox): expose per-sandbox proxy_config in py + js clients by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2742
release(py,js): py 0.7.33, js 0.5.21 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2743

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.32...v0.7.33

Open source →

0.7.3215 Apr 2026

release(js): 0.5.19 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2715

What's Changed

release(js): 0.5.19 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2715
feat(python/sandbox): add snapshot API and start/stop lifecycle by @ramon-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2713
docs: add initial threat model for langsmith-sdk by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2669
feat(js/sandbox): add snapshot API and start/stop lifecycle by @ramon-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2717
chore(deps): bump python-multipart from 0.0.22 to 0.0.26 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2722
release(py,js): py 0.7.32, js 0.5.20 by @ramon-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2721

New Contributors

@ramon-langchain made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2713

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.31...v0.7.32

Open source →

0.7.3114 Apr 2026

chore(deps-dev): bump langchain-core from 1.2.23 to 1.2.28 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2692

What's Changed

chore(deps-dev): bump langchain-core from 1.2.23 to 1.2.28 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2692
chore(deps-dev): bump @anthropic-ai/sdk from 0.82.0 to 0.84.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2684
chore(deps): bump cryptography from 46.0.6 to 46.0.7 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2693
chore(deps-dev): bump @anthropic-ai/sdk from 0.84.0 to 0.85.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2700
feat(py): Tag OpenAI Agent Python SDK runs with ls_agent_type by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2699
feat(js): Adds ls_agent_type metadata to AI SDK runs by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2701
chore(deps-dev): bump types-tqdm from 4.67.3.20260303 to 4.67.3.20260408 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2710
chore(deps): bump pnpm/action-setup from 5 to 6 by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2705
chore(deps): bump the py-minor-and-patch group across 1 directory with 10 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2711
chore(deps-dev): bump @anthropic-ai/sdk from 0.85.0 to 0.86.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2702
chore(deps): bump actions/github-script from 8 to 9 by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2706
chore(deps-dev): bump the js-minor-and-patch group across 1 directory with 7 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2712
chore(deps-dev): bump types-psutil from 7.2.2.20260130 to 7.2.2.20260408 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2709
chore(deps-dev): bump rich from 14.3.3 to 15.0.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2708
feat: Filter kwargs from new token events by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2714
release(py): 0.7.31 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2716

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.30...v0.7.31

Open source →

0.7.309 Apr 2026

feat(python): add service feature to sandbox by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2665

What's Changed

feat(python): add service feature to sandbox by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2665
fix(js): Fix prototype pollution bug in anonymizers by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2690
release(js): 0.5.18 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2691
chore(js/sandbox): suppress warning log by @hntrl in https://github.com/langchain-ai/langsmith-sdk/pull/2694
feat(js): Add metadata to Claude Agent SDK JS tracing by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2695
fix(py): Fix run tree memory leak by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2696
release(py): 0.7.30 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2698

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.29...v0.7.30

Open source →

0.7.299 Apr 2026

release(js): 0.5.17 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2681

What's Changed

release(js): 0.5.17 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2681
feat(py): Fix race condition around Claude Agent SDK instrumentation by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2685
release(py): 0.7.29 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2686

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.28...v0.7.29

Open source →

0.7.288 Apr 2026Deprecated

Fix(py): Add model_dump fallback to prevent .dict() deprecation warning by @dnguyenv in https://github.com/langchain-ai/langsmith-sdk/pull/2655

What's Changed

feat(py): Support subagent tracing in Claude Agents SDK, fix usage and duplicate messages by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2670
chore(deps-dev): bump the py-minor-and-patch group across 1 directory with 11 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2677
chore(deps-dev): bump the js-minor-and-patch group across 1 directory with 8 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2667
chore(deps): bump pnpm/action-setup from 4 to 5 by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2658
chore(py): Deflake test by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2680
feat(py,js): Allow dynamically setting custom client headers by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2678
chore(deps): bump google-cloud-aiplatform from 1.126.1 to 1.133.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2679
Fix(py): Add model_dump fallback to prevent .dict() deprecation warning by @dnguyenv in https://github.com/langchain-ai/langsmith-sdk/pull/2655
fix(py): Fix type checking by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2683
release(py): 0.7.28 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2682

New Contributors

@dnguyenv made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2655

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.27...v0.7.28

Open source →

0.7.278 Apr 2026

chore(js): Vendor Chalk and console-table-printer deps, pin others by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2664

What's Changed

chore(js): Vendor Chalk and console-table-printer deps, pin others by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2664
chore(deps-dev): bump vite from 6.4.1 to 6.4.2 in /js/internal/environment_tests/test-exports-vite in the npm_and_yarn group across 1 directory by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2666
feat(js): Add ls_integration metadata to AI SDK and Claude Agents SDK by @tanushree-sharma in https://github.com/langchain-ai/langsmith-sdk/pull/2668
fix: retry on 502/3/4 in get_prompt by @jdrogers940 in https://github.com/langchain-ai/langsmith-sdk/pull/2672
fix: add more retryable errors to the async client by @jdrogers940 in https://github.com/langchain-ai/langsmith-sdk/pull/2675
release(python): 0.7.27 by @jdrogers940 in https://github.com/langchain-ai/langsmith-sdk/pull/2676

New Contributors

@tanushree-sharma made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2668
@jdrogers940 made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2672

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.26...v0.7.27

Open source →

0.7.266 Apr 2026

chore(deps-dev): bump @anthropic-ai/sdk from 0.80.0 to 0.81.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2646

What's Changed

chore(deps-dev): bump @anthropic-ai/sdk from 0.80.0 to 0.81.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2646
feat(sdk): add list_project_issues method by @Palashio in https://github.com/langchain-ai/langsmith-sdk/pull/2654
chore: bump version to 0.7.26 by @Palashio in https://github.com/langchain-ai/langsmith-sdk/pull/2663

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.25...v0.7.26

Open source →

0.7.253 Apr 2026

fix: anthropic parse messages in js by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2644

What's Changed

fix: anthropic parse messages in js by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2644
chore: bump js by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2647
chore: remove index_dataset, similar_examples, and sync_indexed_dataset from clients by @open-swe[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2645
feat(py, js): add description to hub prompts sdk by @asrira428 in https://github.com/langchain-ai/langsmith-sdk/pull/2639
feat(otel): add set_metadata to OtelSpanProcessor for thread_id propagation by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2650
Bump version: 0.7.24 → 0.7.25 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2652

New Contributors

@asrira428 made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2639

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.24...v0.7.25

Open source →

0.7.241 Apr 2026

chore(deps): bump handlebars from 4.7.8 to 4.7.9 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2620

What's Changed

chore(deps): bump handlebars from 4.7.8 to 4.7.9 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2620
chore(deps): bump the py-minor-and-patch group across 1 directory with 20 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2629
chore(deps): bump pygments from 2.19.2 to 2.20.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2633
chore(deps-dev): bump the js-minor-and-patch group across 1 directory with 6 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2634
chore: Switch to pnpm, use minimumReleaseAge by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2635
chore: Adds exclude-newer to uv settings by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2638
fix: add wrapping for client.beta.messages.parse by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2642
chore: bump py version by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2643

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.23...v0.7.24

Open source →

0.7.2331 Mar 2026

chore(deps): bump flatted from 3.3.3 to 3.4.2 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2600

What's Changed

chore(deps): bump flatted from 3.3.3 to 3.4.2 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2600
feat(js): Parse AI SDK reasoning blocks into standard content blocks by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2601
release(js): 0.5.12 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2602
feat(js): Add proper aggregation for AI SDK reasoning when streaming by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2606
release(js): 0.5.13 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2607
feat(python): add ttl feature for sandboxes by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2609
feat(js): fix tracing of subagents for newer versions of @anthropic/claude-agent-sdk, harden null checks by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2611
release(js): 0.5.14 by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2612
chore(deps): bump requests from 2.32.5 to 2.33.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2613
feat(js): add ttl feature for sandboxes by @christian-bromann in https://github.com/langchain-ai/langsmith-sdk/pull/2617
chore(deps): bump picomatch from 2.3.1 to 2.3.2 in /js/internal/environment_tests/test-exports-metro in the npm_and_yarn group across 1 directory by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2616
chore(deps-dev): bump the js-minor-and-patch group across 1 directory with 17 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2614
fix: include model field in wrap_gemini js traced inputs by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2608
release(js): 0.5.15 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2618
chore(deps-dev): bump langchain-core from 1.2.15 to 1.2.22 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2622
chore(deps): bump cryptography from 46.0.5 to 46.0.6 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2623
chore: support aws saas cluster by @joaquin-borggio-lc in https://github.com/langchain-ai/langsmith-sdk/pull/2628
feat(python): Support headers arg in sandbox client by @bracesproul in https://github.com/langchain-ai/langsmith-sdk/pull/2619
chore(python): Release 0.7.23 by @bracesproul in https://github.com/langchain-ai/langsmith-sdk/pull/2632

New Contributors

@christian-bromann made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2617
@joaquin-borggio-lc made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2628

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.22...v0.7.23

Open source →

0.7.2219 Mar 2026

chore: add experiment id by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2599

What's Changed

chore: add experiment id by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2599

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.21...v0.7.22

Open source →

0.7.2119 Mar 2026

fix(js): Fix AI SDK and Claude Agents SDK in non-Node envs by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2591

What's Changed

fix(js): Fix AI SDK and Claude Agents SDK in non-Node envs by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2591
release(js): 0.5.11 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2592
chore(deps-dev): bump dotenv from 16.4.7 to 17.3.1 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2507
chore(deps-dev): bump multipart from 1.3.0 to 1.3.1 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2566
chore(deps): bump authlib from 1.6.8 to 1.6.9 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2580
chore(deps): bump pyopenssl from 25.3.0 to 26.0.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2581
chore(deps): bump pyasn1 from 0.6.2 to 0.6.3 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2587
chore(deps): bump dorny/paths-filter from 3 to 4 by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2578
chore(deps): bump pyjwt from 2.10.1 to 2.12.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2594
fix: add debug logging to background thread shutdown and final flush by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2597
chore: bump python SDK version to 0.7.21 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2598

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.20...v0.7.21

Open source →

0.7.2018 Mar 2026

chore: apply auth headers for multipart compressed by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2589

What's Changed

chore: apply auth headers for multipart compressed by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2589

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.19...v0.7.20

Open source →

0.7.1917 Mar 2026

fix(python): fix flaky test_workspace_error_recovery_flow by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2583

What's Changed

fix(python): fix flaky test_workspace_error_recovery_flow by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2583
feat: set source: "sdk" on SDK-created datasets by @catherine-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2584
fix(python): add _on_ending to OtelSpanProcessor for opentelemetry-sdk 1.40.0 by @kevinbfrank in https://github.com/langchain-ai/langsmith-sdk/pull/2586
Bump version: 0.7.18 → 0.7.19 by @kevinbfrank in https://github.com/langchain-ai/langsmith-sdk/pull/2588

New Contributors

@kevinbfrank made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2586

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.18...v0.7.19

Open source →

0.7.1816 Mar 2026

fix: fix js missing tz gs by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2569

What's Changed

fix: fix js missing tz gs by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2569
chore: js version bump by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2570
fix(python): replace busy-wait in AsyncExperimentResults.anext by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2550
fix(python): propagate exceptions from AsyncExperimentResults._proces… by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2572
test(python): add AsyncExperimentResults edge case tests by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2573
fix(python): handle concurrent example creation in pytest-xdist by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2549
fix(python): propagate exceptions from ExperimentResults._process_data by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2574
Bump version: 0.7.17 → 0.7.18 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2582

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.17...v0.7.18

Open source →

0.7.1712 Mar 2026

fix(sandbox): prevent CommandHandle.kill() from hanging by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2557

What's Changed

fix(sandbox): prevent CommandHandle.kill() from hanging by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2557
feat(sandbox): add yamux multiplexing protocol by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2558
feat(sandbox): add TCP tunnel support by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2559
docs(sandbox): add TCP tunnel documentation by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2560
feat: add ws based exec to js sdk by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2540
feat(sandbox): add reconnection of tunnels by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2563
fix: catch missing tz info by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2567
Bump version: 0.7.16 → 0.7.17 by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2568

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.16...v0.7.17

Open source →

0.7.169 Mar 2026

fix: gemini wrapper inputs by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2532

What's Changed

fix: gemini wrapper inputs by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2532
fix: tool calls fix for anthropic wrapper by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2537
feat: auto populate trace id child runs by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2534
chore: bump js ver by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2548
chore: bump ver by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2547

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.15...v0.7.16

Open source →

0.7.159 Mar 2026

fix(js): use UUID v7 for evaluator run IDs and feedback IDs by @bwhiting2356 in https://github.com/langchain-ai/langsmith-sdk/pull/2536

What's Changed

fix(js): use UUID v7 for evaluator run IDs and feedback IDs by @bwhiting2356 in https://github.com/langchain-ai/langsmith-sdk/pull/2536
release(js): 0.5.8 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2538
fix: add async create support for sandboxes by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2539
fix(python): Fix pytest behavior with fixtures by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2543
release(py): Bump version: 0.7.14 → 0.7.15 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2544

New Contributors

@bwhiting2356 made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2536

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.14...v0.7.15

Open source →

0.7.146 Mar 2026

fix: sum Anthropic cache tokens into input_tokens for correct cost calculation by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull

What's Changed

fix: sum Anthropic cache tokens into input_tokens for correct cost calculation by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2519
chore(py): Bump version: 0.7.13 → 0.7.14 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2535

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.13...v0.7.14

Open source →

0.7.136 Mar 2026Security

fix: bump minimatch to resolve CVE-2026-27903 by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2502

What's Changed

fix: initialize otel exporter before background thread by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2526
fix: convert non primitive types to JSON strings by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2527
fix: missing await by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2528
fix: bump minimatch to resolve CVE-2026-27903 by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2502
feat(py): add experiment-level metadata to pytest integration by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2524
Bump version: 0.7.12 → 0.7.13 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2531

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.12...v0.7.13

Open source →

0.7.124 Mar 2026

fix: sample before transform in ingest by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2488

What's Changed

fix: sample before transform in ingest by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2488
chore: bump version by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2521

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.11...v0.7.12

Open source →

0.7.113 Mar 2026

add get insights reports with runs by @Palashio in https://github.com/langchain-ai/langsmith-sdk/pull/2517

What's Changed

add get insights reports with runs by @Palashio in https://github.com/langchain-ai/langsmith-sdk/pull/2517
bump version for insights sdk changes by @Palashio in https://github.com/langchain-ai/langsmith-sdk/pull/2520

New Contributors

@Palashio made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2517

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.10...v0.7.11

Open source →

0.7.103 Mar 2026Deprecated

fix: update deprecated model and re-record VCR cassettes by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2503

What's Changed

chore(deps-dev): bump the js-minor-and-patch group across 1 directory with 9 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2490
fix: update deprecated model and re-record VCR cassettes by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2503
chore(deps): bump minimatch from 3.1.2 to 3.1.5 in /js/internal/environment_tests/test-exports-metro in the npm_and_yarn group across 1 directory by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2489
fix: memory leak in _cached_attachment_args when tracing closures by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2515
Bump version: 0.7.9 → 0.7.10 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2516

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.9...v0.7.10

Open source →

0.7.927 Feb 2026

fix: catch blocksize typeError by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2499

What's Changed

fix: catch blocksize typeError by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2499
chore: bump py ver by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2501

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.8...v0.7.9

Open source →

0.7.827 Feb 2026

fix(ci): replace mistakenly pinned Node 22.4.1 with 22.x by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2477

What's Changed

fix(ci): replace mistakenly pinned Node 22.4.1 with 22.x by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2477
chore: bump GitHub workflow Node.js versions to 24.x by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2485
chore(deps): bump the py-minor-and-patch group across 1 directory with 15 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2475
chore(deps): bump rollup from 4.57.1 to 4.59.0 in /js/internal/environment_tests/test-exports-vite in the npm_and_yarn group across 1 directory by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2483
feat(sandbox): add retry mechanism for python client by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2486
chore(deps): bump rollup from 4.40.2 to 4.59.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2484
Description change for read_dataset_version by @catherine-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2487
feat(sandbox): async sandbox creation by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2493
docs: rm pytest beta docstring by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2496
fix(anthropic): Add usage_metadata to metadata by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2497
Bump version: 0.7.7 → 0.7.8 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2498

New Contributors

@catherine-langchain made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2487

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.7...v0.7.8

Open source →

0.7.725 Feb 2026

fix(js): subagent tool calls tracking for latest claude agent sdk by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2463

What's Changed

fix(js): subagent tool calls tracking for latest claude agent sdk by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2463
release(js): 0.5.5 by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2464
fix(js): Respect traceRawHttp for tracing streaming AI SDK calls by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2466
release(js): 0.5.6 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2467
feat(python): add WebSocket transport for sandbox commands by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2443
test(python): add tests for WebSocket transport layer by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2445
feat(python): use WebSocket transport by default with HTTP fallback by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2446
feat(python): add CommandHandle for streaming, kill, stdin, and reconnect by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2450
test(python): add tests for CommandHandle and sandbox streaming integration by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2448
docs(python): document sandbox streaming, kill, stdin, and reconnect by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2449
chore(deps): bump google-cloud-aiplatform from 1.126.1 to 1.133.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2465
fix(js): Fix list commits endpoint for private prompts by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2479
feat: persist failed trace payloads to disk for later replay by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2476
feat: add native thread querying support by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2455
feat: add raw response parsing for responses api to openai wrapper by @victorm-lc in https://github.com/langchain-ai/langsmith-sdk/pull/2480
fix: add integration and version num by @samecrowder in https://github.com/langchain-ai/langsmith-sdk/pull/2481
release(py): 0.5.7 by @samecrowder in https://github.com/langchain-ai/langsmith-sdk/pull/2482

New Contributors

@samecrowder made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2481

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.6...v0.7.7

Open source →

0.7.621 Feb 2026

feat(python): add sandbox exception types and client plumbing by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2442

What's Changed

feat(python): add sandbox exception types and client plumbing by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2442
fix(py, claude agent sdk): Correctly parent spans in asyncio context by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2457
perf(py): Improve retry logic for tracing ops by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2459
feat(py, claude agent sdk): Add wrapping for PostToolUseFailure hook by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2460
chore(claude agent sdk): rm debug logs by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2461
release(py): 0.7.6 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2462

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.5...v0.7.6

Open source →

0.7.519 Feb 2026

chore(deps): bump chalk from 4.1.2 to 5.6.2 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2416

What's Changed

chore(deps): bump chalk from 4.1.2 to 5.6.2 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2416
chore(deps-dev): bump @jest/reporters from 29.7.0 to 30.2.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2417
chore(deps): bump the py-minor-and-patch group across 1 directory with 16 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2440
chore(deps-dev): bump pandas-stubs from 2.3.3.251219 to 2.3.3.260113 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2404
chore(deps-dev): bump the js-minor-and-patch group across 1 directory with 10 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2433
make zstandard optional by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2453
fix(py/adk): fix multi-agent tracing by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2451
release(py): 0.7.5 by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2456

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.4...v0.7.5

Open source →

0.7.418 Feb 2026

fix(google-adk): add wrapt dependency by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2436

What's Changed

fix(google-adk): add wrapt dependency by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2436
chore: lock dependencies by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2439
release(py): 0.7.4 by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2441

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.3...v0.7.4

Open source →

0.7.313 Feb 2026

fix: propagate tracingEnabled to nested traceables by @hntrl in https://github.com/langchain-ai/langsmith-sdk/pull/2427

What's Changed

fix: propagate tracingEnabled to nested traceables by @hntrl in https://github.com/langchain-ai/langsmith-sdk/pull/2427
chore(python): openai agents: delay span start for spans without inputs on start event by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2424
release(py): 0.7.3 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2428

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.2...v0.7.3

Open source →

0.7.213 Feb 2026

release(js): 0.5.1 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2389

What's Changed

release(js): 0.5.1 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2389
fix(js): Remove @internal by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2391
release(js): 0.5.2 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2392
chore(deps-dev): bump openai from 5.8.2 to 6.18.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2378
chore(deps-dev): bump cross-env from 7.0.3 to 10.1.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2379
chore(deps-dev): bump the js-minor-and-patch group in /js with 4 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2376
chore(deps-dev): bump node-fetch from 2.7.0 to 3.3.2 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2380
Google ADK LangSmith tracing enhancements by @j-broekhuizen in https://github.com/langchain-ai/langsmith-sdk/pull/2394
chore: update dependabot.yml to comply with posture checks by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2393
chore(deps): bump cryptography from 46.0.3 to 46.0.5 in /python in the uv group across 1 directory by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2397
chore(deps-dev): bump the js-minor-and-patch group in /js with 6 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2398
chore(deps-dev): bump eslint-config-prettier from 8.10.0 to 10.1.8 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2399
chore(deps): bump packaging from 25.0 to 26.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2403
chore(deps-dev): bump pytest from 8.4.2 to 9.0.2 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2405
chore(deps): bump the py-minor-and-patch group across 1 directory with 20 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2406
fix(js): Log Vitest/Jest outputs even if test throws an error by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2408
fix(js): Remove async by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2409
release(js): 0.5.3 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2410
fix: ignoring p-queue dep by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2414
feat(js): add feedback config CRUD and annotation queue rubric items (closes LSPE-67) by @bentanny in https://github.com/langchain-ai/langsmith-sdk/pull/2420
fix(js): Add on_start handler for traceable, use in evaluate by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2421
release(js): 0.5.4 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2422
feat(python): add feedback config CRUD and annotation queue rubric items (closes LSPE-67) by @bentanny in https://github.com/langchain-ai/langsmith-sdk/pull/2419
feat(python): add exceptions_to_handle to @traceable by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2423
release(py): 0.7.2 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2426

New Contributors

@j-broekhuizen made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2394
@bentanny made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2420

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.1...v0.7.2

Open source →

0.7.110 Feb 2026

release(js): 0.5.0 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2381

What's Changed

release(js): 0.5.0 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2381
fix(ci): Convert JS release workflow to use OIDC by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2383
feat(js): run evaluations as examples complete by @bees in https://github.com/langchain-ai/langsmith-sdk/pull/2349
fix(js): Restore default concurrency behavior for JS eval runner by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2385
fix(js,py): Adds backcompat for old prompt cache API by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2386
fix(js): Add system message visibility to Anthropic wrapper traces by @veeceey in https://github.com/langchain-ai/langsmith-sdk/pull/2375
release(py): 0.7.1 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2388

New Contributors

@veeceey made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2375

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.0...v0.7.1

Open source →

0.7.09 Feb 2026Security

fix(deps): resolve glob CLI command injection (CVE-2025-64756) by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2368

What's Changed

chore(deps): bump form-data from 4.0.3 to 4.0.5 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2282
chore(deps-dev): bump langchain from 0.3.29 to 0.3.37 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2283
chore(deps): bump vite from 6.3.5 to 6.4.1 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2284
chore:deps by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2356
chore(deps): bump python-multipart from 0.0.21 to 0.0.22 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2351
chore(deps): bump protobuf from 6.33.2 to 6.33.5 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2352
chore(deps): bump pyasn1 from 0.6.1 to 0.6.2 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2353
chore(deps-dev): bump esbuild from 0.20.2 to 0.25.0 in /js/internal/environment_tests/test-exports-esbuild in the npm_and_yarn group across 1 directory by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2354
chore(deps): bump jws from 4.0.0 to 4.0.1 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2355
chore(deps): bump actions/setup-node from 3 to 6 by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2357
chore(deps): bump actions/github-script from 6 to 8 by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2358
chore(deps): bump actions/checkout from 2 to 6 by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2359
chore(deps): bump astral-sh/setup-uv from 6 to 7 by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2360
chore(deps): bump actions/cache from 4 to 5 by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2361
chore(deps-dev): bump ty from 0.0.10 to 0.0.15 in /python in the py-minor-and-patch group by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2362
chore(deps): update httpx requirement from <0.28.0,>=0.23.0 to >=0.23.0,<0.29.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2363
chore(deps-dev): bump eslint-plugin-prettier from 4.2.1 to 4.2.5 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2366
chore(deps-dev): bump babel-jest from 29.7.0 to 30.2.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2365
chore: adding workflow perms by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2367
fix: esbuild CVE dependabot 78 by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2369
fix(deps): resolve glob CLI command injection (CVE-2025-64756) by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2368
fix(deps): resolve js-yaml prototype pollution vulnerability by @jkennedyvz in https://github.com/langchain-ai/langsmith-sdk/pull/2370
chore(deps): bump the js-minor-and-patch group in /js with 20 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2364
chore: rm unused fn by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2346
feat(py,js): Use global singleton for prompt cache, enable by default by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2371
chore: Support jwt auth in replicas by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2293
release(py): 0.7.0 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2382

New Contributors

@jkennedyvz made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2356

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.6.9...v0.7.0

Open source →

0.6.95 Feb 2026

feat: add pre-commit by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2339

What's Changed

feat: add pre-commit by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2339
fix(sandbox): endpoint for python async by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2340
feat(sandbox): add js lib by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2335
prevent claude agent sdk double wrapping by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2344
don't set parent context on span start by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2343
Bump version: 0.6.8 → 0.6.9 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2347

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.6.8...v0.6.9

Open source →

0.6.82 Feb 2026

feat(python): Non-otel google adk wrapper by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2330

What's Changed

feat(python): Non-otel google adk wrapper by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2330
chore: add chat_name and completions_name optional parameter by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2332
Bump version: 0.6.7 → 0.6.8 by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2334

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.6.7...v0.6.8

Open source →

0.6.731 Jan 2026

export google gen ai wrapper by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2316

What's Changed

export google gen ai wrapper by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2316
bump js sdk (0.4.11) by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2318
feat(js,python): Use xxhash for deterministic UUID7 for replicas by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2315
pass metadata on feedback creation by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2317
fix(python): fix upsert param in create_project by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2322
feat(py,js): Allow prepopulating invocation params in passed metadata for client wrappers by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2320
release(js): 0.4.12 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2326
release(py): 0.6.7 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2327

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.6.6...v0.6.7

Open source →

0.6.627 Jan 2026

release: js 0.4.10 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2312

What's Changed

release: js 0.4.10 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2312
fix(sandbox): default endpoint by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2313
feat(py): Allow setting background tracing threads as daemons by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2310
release(py): 0.6.6 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2314

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.6.5...v0.6.6

Open source →

0.6.526 Jan 2026

beta wrap_gemini ts wrapper by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2121

What's Changed

beta wrap_gemini ts wrapper by @EugeneJinXin in https://github.com/langchain-ai/langsmith-sdk/pull/2121
chore: rm rust lib by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2290
feat: add support for tracing Claude Agent SDK JS by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2271
feat(js): track latest generator input in claude agent sdk by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2298
feat(js): respect disable run compression by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2270
bump js 0.4.8 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2304
Handle streaming inputs in claude agent sdk by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2300
feat(js): refactor of Claude Agent SDK wrapper by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2306
feat: add sandbox sdk by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2303
chore: add as_of to create and update examples response by @GowriH-1 in https://github.com/langchain-ai/langsmith-sdk/pull/2308
release: py 0.6.5 by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2311

New Contributors

@DanielKneipp made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2303
@GowriH-1 made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2308

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.6.4...v0.6.5

Open source →

0.6.415 Jan 2026

docs: fix some docstrings by @mdrxy in https://github.com/langchain-ai/langsmith-sdk/pull/2269

What's Changed

docs: fix some docstrings by @mdrxy in https://github.com/langchain-ai/langsmith-sdk/pull/2269
chore: set config in traceable by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2275
chore: consolidate workflow files by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2276
chore: dynamic versioning by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2278
release(python) 0.6.2 by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2277
chore(deps-dev): bump @langchain/core from 0.3.72 to 0.3.80 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2280
fix: simplify baggage header serialization by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2286
bump sdk versions by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2287
fix(js): remove explicit message type from convertMessageToTracedFormat by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2288
fix(js): add defensive null checks in AsyncCaller error handler by @hntrl in https://github.com/langchain-ai/langsmith-sdk/pull/2285
Fix: Add with_raw_response support to OpenAI & Anthropic wrapper by @victorm-lc in https://github.com/langchain-ai/langsmith-sdk/pull/2134
chore: Fix release check by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2289
Bump version: 0.6.3 → 0.6.4 by @ericdong-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2292

New Contributors

@hntrl made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2285
@victorm-lc made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2134
@ericdong-langchain made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2292

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.6.1...v0.6.4

Open source →

0.6.314 Jan 2026

Nothing published for this version

0.6.28 Jan 2026

Nothing published for this version

0.6.16 Jan 2026

ci: test more bundlers by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2263

What's Changed

ci: test more bundlers by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2263
feat(python sdk): Add support for setting commit tags when pushing a prompt by @bees in https://github.com/langchain-ai/langsmith-sdk/pull/2265
feat: Pass in Cache, rename by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2264
chore: bump sdk by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2268

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.6.0...v0.6.1

Open source →

0.6.02 Jan 2026

chore(js): bump JS to 0.4.3 by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2253

What's Changed

chore(js): bump JS to 0.4.3 by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2253
Revert "feat: add js prompt caching" by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2258
Revert "feat: Replace UUID5 with deterministic UUID7 for replicas" by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2257
release(js): bump to 0.4.4 by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2259
feat: add prompt cache back and setup environment tests by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2260
feat(python): Bump pydantic to v2 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2248

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.5.2...v0.6.0

Open source →

0.6.0rc030 Dec 2025pre-release

feat(js): Add support for tracing AI SDK 6 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2237

What's Changed

feat(js): Add support for tracing AI SDK 6 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2237
fix(js): Remove default Jestlike timeout by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2243
feat(js): Add support for tracing tool loop agent by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2244
feat: Replace UUID5 with deterministic UUID7 for replicas by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2249
feat: add prompt caching to python sdk by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2246
feat: add js prompt caching by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2251
fix(claude): correctly parse llm and tool inputs in claude agent sdk by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2255
bump(python): 0.5.2 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2256

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.5.1...v0.6.0rc0

Open source →

0.5.230 Dec 2025

feat(js): Add support for tracing AI SDK 6 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2237

What's Changed

feat(js): Add support for tracing AI SDK 6 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2237
fix(js): Remove default Jestlike timeout by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2243
feat(js): Add support for tracing tool loop agent by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2244
feat: Replace UUID5 with deterministic UUID7 for replicas by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2249
feat: add prompt caching to python sdk by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2246
feat: add js prompt caching by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2251
fix(claude): correctly parse llm and tool inputs in claude agent sdk by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2255
bump(python): 0.5.2 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2256

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.5.1...v0.5.2

Open source →

0.5.124 Dec 2025

feat(openai): Add use responses API to OpenAI wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2218

What's Changed

feat(openai): Add use responses API to OpenAI wrapper by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2218
chore(py): Fix Python integration tests by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2219
feat(js): Add invocation param tracing for OpenAI responses wrapper in JS by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2220
Ignore empty string by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2225
remove duplicate patch from claude agent sdk by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2189
fix(js): Fix JS Memory Leak clean child_runs by @amodelaweb in https://github.com/langchain-ai/langsmith-sdk/pull/2228
fix(js): Make traced async iterators call finally on success by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2230
release(js): 0.4.1 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2231
fix(js): Avoid waiting for child runs to complete if parent throws an error by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2232
release(js): 0.4.2 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2233
fix(js): Remove unnecessary promise skip on error by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2234
Fix timestamp ordering violation in RunTree.create_child by @loganrosen in https://github.com/langchain-ai/langsmith-sdk/pull/2240
fix(python): pull prompt for newer langchain_core by @eyurtsev in https://github.com/langchain-ai/langsmith-sdk/pull/2239

New Contributors

@amodelaweb made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2228
@loganrosen made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2240

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.5.0...v0.5.1

Open source →

0.5.016 Dec 2025

feat(py,js): Python 0.5, JS 0.4 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2182

What's Changed

feat(py,js): Python 0.5, JS 0.4 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2182
js: Ensures parent traceables always finish after children in https://github.com/langchain-ai/langsmith-sdk/pull/2094
py: Make evaluator target function traces only trace inputs instead of nested inputs outputs reference_outputs (BREAKING) in https://github.com/langchain-ai/langsmith-sdk/pull/2074
py,js: Change default ingest to multipart instead of single run (BREAKING) in https://github.com/langchain-ai/langsmith-sdk/pull/2206
js: Omit raw HTTP info when tracing AI SDK runs (BREAKING) in https://github.com/langchain-ai/langsmith-sdk/pull/2207
py,js: Remove legacy evaluators (BREAKING) in https://github.com/langchain-ai/langsmith-sdk/pull/2144
js: Remove legacy AI SDK exporter and wrapAIModel (BREAKING) in https://github.com/langchain-ai/langsmith-sdk/pull/2210
js: Make traceables that receive iterables as inputs use a single POST instead of the typical POST + PATCH flow in https://github.com/langchain-ai/langsmith-sdk/pull/2209
release(js): 0.4.0 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2216
release(py): 0.5.0 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2217

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.60...v0.5.0

Open source →

0.4.6016 Dec 2025

feat(js): Wrap additional OpenAI methods in wrapOpenAI by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2198

What's Changed

feat(js): Wrap additional OpenAI methods in wrapOpenAI by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2198
fix(js): Fix traceable typing for async iterables and runnable config by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2199
release(js): 0.3.86 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2202
fix(py): add missing imports during TYPE_CHECKING by @mkaoudis in https://github.com/langchain-ai/langsmith-sdk/pull/2201
fix(js): Use one generic param for async iterable in traceable types by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2203
release(js): 0.3.87 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2204
feat: automatically infer attachments by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2200
fix(openai agents sdk): Merge invocation params into run extra by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2214
bump(py): 0.4.60 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2215

New Contributors

@mkaoudis made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2201

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.59...v0.4.60

Open source →

0.4.5911 Dec 2025

feat(py,js): Add prop to omit traced runtime info by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2195

What's Changed

feat(py,js): Add prop to omit traced runtime info by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2195
release(js): 0.3.85 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2196
release(py): 0.4.59 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2197

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.58...v0.4.59

Open source →

0.4.5810 Dec 2025

feat(py,js): Add batch example deletion method, hard delete for Python by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2190

What's Changed

feat(py,js): Add batch example deletion method, hard delete for Python by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2190
release(js): 0.3.84 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2191
release(py): 0.4.58 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2192

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.57...v0.4.58

Open source →

0.4.579 Dec 2025

Revert "fix(claude agent sdk): remove thread local storage" by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2185

What's Changed

Revert "fix(claude agent sdk): remove thread local storage" by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2185
feat(js): wrapAnthropic by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2183
release(js): 0.3.83 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2186
release(py): 0.4.57 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2187

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.56...v0.4.57

Open source →

0.4.566 Dec 2025

chore(python): load child runs with dotted_order mismatches by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2179

What's Changed

chore(python): load child runs with dotted_order mismatches by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2179

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.55...v0.4.56

Open source →

0.4.555 Dec 2025

feat(py): Add background callback error hook by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2176

What's Changed

feat(py): Add background callback error hook by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2176
release(py): 0.4.55 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2177

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.54...v0.4.55

Open source →

0.4.545 Dec 2025

chore(insights): add insights agent youtube notebook by @ads2280 in https://github.com/langchain-ai/langsmith-sdk/pull/2145

What's Changed

chore(insights): add insights agent youtube notebook by @ads2280 in https://github.com/langchain-ai/langsmith-sdk/pull/2145
feat(py): track evaluator method by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2116
fix(claude agent sdk): Correctly parent tool llm runs by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2173
bump(python): 0.4.54 by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2175

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.53...v0.4.54

Open source →

0.4.54rc04 Dec 2025pre-release

chore(insights): add insights agent youtube notebook by @ads2280 in https://github.com/langchain-ai/langsmith-sdk/pull/2145

What's Changed

chore(insights): add insights agent youtube notebook by @ads2280 in https://github.com/langchain-ai/langsmith-sdk/pull/2145
feat(py): track evaluator method by @baskaryan in https://github.com/langchain-ai/langsmith-sdk/pull/2116

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.53...v0.4.54rc0

Open source →

0.4.533 Dec 2025

feat: Use uuid-utils by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2166

What's Changed

feat: Use uuid-utils by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2166

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.52...v0.4.53

Open source →

0.4.522 Dec 2025

feat(python): add CRUD methods for feedback formulas by @bees in https://github.com/langchain-ai/langsmith-sdk/pull/2163

What's Changed

feat(python): add CRUD methods for feedback formulas by @bees in https://github.com/langchain-ai/langsmith-sdk/pull/2163
release(py): 0.4.52 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2171

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.4.51...v0.4.52

Open source →

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