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LangSmith

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May 15, 2026

LangSmith SDK

v0.8.5

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Client.close() releases sessions; multipart streaming now configurable

What's Changed

release(js): 0.7.0 by @ramon-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2890
fix(js): add alias for experimental/sandbox to appease broad peer dep range within deepagents by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2893
feat(js): allow disabling multipart streaming via env variable by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2900
feat(python): add Client.close() to release session [closes LSDK-183] by @open-swe[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2866
feat(sandbox): forward client default headers on exec WebSocket by @open-swe[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2899
release(js): 0.7.1 by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2902
release(py): 0.8.5 by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2903

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.8.4...v0.8.5

May 13, 2026

LangSmith SDK

v0.8.4

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Sandbox import renamed; experimental warnings removed

What's Changed

release(js): 0.6.3 by @vishnu-ssuresh in https://github.com/langchain-ai/langsmith-sdk/pull/2864
chore(deps): bump python-multipart from 0.0.26 to 0.0.27 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2859
chore(deps-dev): bump @anthropic-ai/sdk from 0.91.1 to 0.92.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2858
chore(deps): bump postcss from 8.5.8 to 8.5.14 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2857
chore(deps): bump hono from 4.12.15 to 4.12.18 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2860
chore(deps-dev): bump langchain-core from 1.3.2 to 1.3.3 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2867
chore(deps-dev): bump @anthropic-ai/sdk from 0.92.0 to 0.93.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2869
chore(deps): bump urllib3 from 2.6.3 to 2.7.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2873
chore(deps): bump the py-minor-and-patch group across 1 directory with 12 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2876
chore(deps-dev): bump the js-minor-and-patch group across 1 directory with 16 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2877
chore(deps): 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/2879
chore(deps): bump the npm_and_yarn group across 2 directories with 2 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2868
chore(deps-dev): bump @anthropic-ai/sdk from 0.93.0 to 0.94.0 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2878
sdk(js): rename experimental/sandbox -> sandbox (breaking) by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2885
sdk(py): drop sandbox alpha/experimental warnings by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2884
feat(sandbox): make snapshot optional and add TS options overload by @ramon-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2887
release(py): 0.8.4 by @ramon-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2889

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.8.3...v0.8.4

May 7, 2026

LangSmith SDK

v0.8.3

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What's Changed

fix(js): prevent sending [object Object] as span attribute when dealing with nested objects, send full langsmith.usage_metadata if present by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2845
release(js): bump to 0.6.2 by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2856
sdk(py): replace ttl_seconds with idle_ttl_seconds + delete_after_stop_seconds by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2853
sdk(js): replace ttlSeconds with idleTtlSeconds + deleteAfterStopSeconds by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2854
Fix push_agent URL owner for name-only identifiers by @vishnu-ssuresh in https://github.com/langchain-ai/langsmith-sdk/pull/2862
docs(langsmith): clarify trust boundaries when working with hub by @eyurtsev in https://github.com/langchain-ai/langsmith-sdk/pull/2861
release(py): 0.8.3 by @vishnu-ssuresh in https://github.com/langchain-ai/langsmith-sdk/pull/2863

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.8.2...v0.8.3

May 6, 2026

LangSmith SDK

v0.8.2

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What's Changed

Bump JS SDK version to 0.6.1 by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2847
fix: parse urllib3 version with packaging.Version by @justinwolfington in https://github.com/langchain-ai/langsmith-sdk/pull/2851
Bump Python SDK version to 0.8.2 by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2855

New Contributors

@justinwolfington made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2851

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.8.1...v0.8.2

May 5, 2026

LangSmith SDK

v0.8.1

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What's Changed

chore(js): remove experimental opencode integration by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2836
chore(deps-dev): bump google-adk from 1.10.0 to 1.28.1 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2823
chore(deps): bump postcss from 8.5.8 to 8.5.12 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2827
Add JS profile loading by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2834
Add Python profile loading by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2835
Extract JS profile auth service by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2846
Bump Python SDK version to 0.8.1 by @langchain-infra in https://github.com/langchain-ai/langsmith-sdk/pull/2848

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.8.0...v0.8.1

Apr 30, 2026

LangSmith SDK

v0.8.0

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What's Changed

feat(js,py): JS 0.6.0, Py 0.8.0 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2831
release(js): 0.6.0 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2832
release(py): 0.8.0 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2833

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.38...v0.8.0

Apr 29, 2026

LangSmith SDK

v0.7.38

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What's Changed

feat(js): add tracing of opencode by @dqbd in https://github.com/langchain-ai/langsmith-sdk/pull/2776
chore(js): Remove types/uuid by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2814
docs(sandbox): document default idle TTL of 10 minutes by @DanielKneipp in https://github.com/langchain-ai/langsmith-sdk/pull/2788
ci(py): Bump pytest timeout to 2m by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2815
chore(deps-dev): bump the js-minor-and-patch group across 1 directory with 4 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2803
chore(deps): update sphinx-autobuild requirement from >=2024 to >=2024.10.3 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2809
chore(deps): update myst-nb requirement from >=1.1.1 to >=1.4.0 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2810
chore(deps-dev): bump types-pyyaml from 6.0.12.20250915 to 6.0.12.20260408 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2812
chore(deps-dev): bump @langchain/openai from 0.5.18 to 0.6.17 in /js by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2806
chore(deps): bump the py-minor-and-patch group across 1 directory with 18 updates by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2808
feat(py): Adds strands OTEL exporter by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2817
chore(js): Switch to oxfmt and oxlint by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2819
fix(py): fix RunTree ValidationError when inputs or outputs is a Pydantic BaseModel by @QuentinBrosse in https://github.com/langchain-ai/langsmith-sdk/pull/2820
chore: add apac support by @joaquin-borggio-lc in https://github.com/langchain-ai/langsmith-sdk/pull/2821
fix(js): Pull Claude Agent SDK subagent runs from transcript, add tool span for subagents, merge message blocks by id by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2816
release(js): 0.5.26 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2824
release(py): 0.7.38 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2825

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.37...v0.7.38

Apr 26, 2026

LangSmith SDK

v0.7.37

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What's Changed

perf(js): Offload serialize to worker thread at flush time by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2781
release(js): 0.5.24 by @emil-lc in https://github.com/langchain-ai/langsmith-sdk/pull/2790
chore(js): Fix perf test flagging by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2792
feat(js,python): Adds hub model config and provider to schemas by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2793
fix(js): minor test improvements by @christian-bromann in https://github.com/langchain-ai/langsmith-sdk/pull/2429
fix(js): Include auth headers on info requests by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2800
release(js): 0.5.25 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2801
fix(python): flush both tracing_queue and compressed_traces in flush() by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2796
chore(deps): bump postcss from 8.5.8 to 8.5.10 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/2791
chore(deps-dev): bump google-adk from 1.10.0 to 1.28.1 in /python by @dependabot[bot] in https://github.com/langchain-ai/langsmith-sdk/pull/2794
fix(python): flush pending traces during Client.cleanup() by @angus-langchain in https://github.com/langchain-ai/langsmith-sdk/pull/2799
fix(py): Fix concurrency for multiple Claude Agent SDK sessions by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2795
release(py): 0.7.37 by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2802

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.36...v0.7.37

Apr 24, 2026

LangSmith SDK

v0.7.36

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What's Changed

fix(js): honor numRepetitions when data is an Example[] by @hinthornw in https://github.com/langchain-ai/langsmith-sdk/pull/2779
docs: add CONTRIBUTING.md covering Python + JS release flow by @vishnu-ssuresh in https://github.com/langchain-ai/langsmith-sdk/pull/2787
perf(js): Use estimator instead of serialization in hot path by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2780
release(js): 0.5.23 by @vishnu-ssuresh in https://github.com/langchain-ai/langsmith-sdk/pull/2786
fix(js): Vendor UUID to satisfy security warning and keep CJS support by @jacoblee93 in https://github.com/langchain-ai/langsmith-sdk/pull/2784
feat(py, js): per-replica client arg to support runtime destination overrides by @emil-lc in https://github.com/langchain-ai/langsmith-sdk/pull/2759
release(py): 0.7.36 by @emil-lc in https://github.com/langchain-ai/langsmith-sdk/pull/2789

New Contributors

@emil-lc made their first contribution in https://github.com/langchain-ai/langsmith-sdk/pull/2759

Full Changelog: https://github.com/langchain-ai/langsmith-sdk/compare/v0.7.35...v0.7.36

LangSmith SDK

v0.7.35

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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

Apr 23, 2026

LangSmith SDK

v0.7.34

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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

Apr 20, 2026

LangSmith SDK

v0.7.33

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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

Apr 15, 2026

LangSmith SDK

v0.7.32

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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

Apr 14, 2026

LangSmith SDK

v0.7.31

↗

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

Apr 9, 2026

LangSmith SDK

v0.7.30

↗

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

LangSmith SDK

v0.7.29

↗

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

Apr 8, 2026

LangSmith SDK

v0.7.28

↗

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

LangSmith SDK

v0.7.27

↗

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

Apr 6, 2026

LangSmith SDK

v0.7.26

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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

Apr 3, 2026

LangSmith SDK

v0.7.25

↗

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

Sources