Core LangChain.js abstractions and schemas
Last release 8 days ago
20 Aug 2026
Ships on a steady schedule
a new release about every 2 weeks
Nearly every release is documented
notes for 59 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
3 years old
350 releases · first in 2023
Release timeline
350 releases since 2023Releases
- 0.1.257 Feb 2024
Nothing published for this version
- 0.1.25-rc.07 Feb 2024pre-release
Nothing published for this version
- 0.1.247 Feb 2024
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- 0.1.235 Feb 2024
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- 0.1.222 Feb 2024
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- 0.1.211 Feb 2024
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- 0.1.2031 Jan 2024
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- 0.1.20-rc.031 Jan 2024pre-release
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- 0.1.1930 Jan 2024
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- 0.1.1826 Jan 2024
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- 0.1.1719 Jan 2024
- 0.1.17-rc.019 Jan 2024pre-release
Nothing published for this version
- 0.1.1618 Jan 2024
Nothing published for this version
- 0.1.1517 Jan 2024
- 0.1.1416 Jan 2024
- 0.1.1315 Jan 2024
- 0.1.129 Jan 2024
Additional notes
Open source →Patch Changes
- #10704
f7e50fbThanks @afirstenberg! - Adds support for flex and priority pricing. Adds support for custom headers. Thanks to @Nico385412 and @pawel-twardziak for their insight and contributions.
- #10704
- 0.1.118 Jan 2024
- 0.1.11-rc.08 Jan 2024pre-release
Nothing published for this version
- 0.1.107 Jan 2024
Additional notes
Open source →Patch Changes
- #10550
9781bffThanks @muhammadosama984! - fix(google): alignmediaResolutionwith Gemini scalar values and supportdetailalias mapping (low/high/auto) for media prompts.
Additional notes
Open source →Patch Changes
- Updated dependencies [
9270c48]:- @langchain/[email protected]
- #10550
- 0.1.10-rc.27 Jan 2024pre-release
Nothing published for this version
- 0.1.10-rc.17 Jan 2024pre-release
Nothing published for this version
- 0.1.10-rc.07 Jan 2024pre-release
Nothing published for this version
- 0.1.96 Jan 2024
Additional notes
Open source →Patch Changes
- Updated dependencies [
5552999]:- @langchain/[email protected]
Additional notes
Open source →Patch Changes
- #10522
6e2d29eThanks @afirstenberg! - tests(@langchain/google): Lyria 3
- Updated dependencies [
- 0.1.9-rc.05 Jan 2024pre-release
Nothing published for this version
- 0.1.84 Jan 2024
Additional notes
Open source →Patch Changes
- Updated dependencies [
478652c,52e501b]:- @langchain/[email protected]
Additional notes
Open source →Patch Changes
-
#10471
8f15dd1Thanks @pawel-twardziak! - fix(@langchain/google): pass abort signal to fetch in non-streaming invoke- Added
signal: options.signalto theRequestconstructor in_generate's non-streaming branch, mirroring what_streamResponseChunksalready does
- Added
-
#10493
63b7268Thanks @afirstenberg! - Undo regression introduced in #10397 in legacy content processing path. Fixes issues with a false duplicate functionCall sent in response (#10474).
- Updated dependencies [
- 0.1.73 Jan 2024
Additional notes
Open source →Patch Changes
- Updated dependencies [
af9bbd3]:- @langchain/[email protected]
Additional notes
Open source →Patch Changes
-
#10343
a1062b7Thanks @pawel-twardziak! - fix: merge consecutive same-role Gemini content blocks -
#10313
bc4cd65Thanks @pawel-twardziak! - fix(langchain-google): parse JSON error bodies from non-JSON content types -
#10397
955ef6bThanks @pawel-twardziak! - fix(google): fix v1 converter dropping tool_calls, text-plain and file blocks -
#10402
9099f53Thanks @pawel-twardziak! - fix(google): use dynamic ls_provider based on platform instead of hardcoded "google" -
#10415
d7d0bc7Thanks @pawel-twardziak! - fix(genai): round-trip thinking content blocks in multi-turn convos -
#10407
c2960feThanks @fahe1em1! - lazy-load jose in CJS auth helpers -
#10292
e4193f8Thanks @afirstenberg! - fixes for Vertex function calls -
#10400
a870750Thanks @afirstenberg! - support role name for function response in Vertex
- Updated dependencies [
- 0.1.630 Dec 2023
Additional notes
Open source →Patch Changes
- Updated dependencies [
aacbe87]:- @langchain/[email protected]
Additional notes
Open source →Patch Changes
-
#10300
a26dc7dThanks @MaxwellCalkin! - resolve functionResponse.name from tool_calls in legacy converter -
#10314
418a3fcThanks @pawel-twardziak! - add getLsParams for LangSmith tracing metadata -
#10267
b68f083Thanks @afirstenberg! - feat(@langchain/google) Test Gemini 3.1 Flash-Lite
- Updated dependencies [
- 0.1.529 Dec 2023
Release notes2 sources agree
Open source →Patch Changes
- Updated dependencies [
3999fab,fce9ab4]:- @langchain/[email protected]
Additional notes
Open source →Patch Changes
-
#10872
a640079Thanks @hntrl! - chore(deps): remove redundant @types/uuid declarationsRemove
@types/uuidfrom package manifests that rely on@langchain/core/utils/uuidor do not require uuid type stubs directly, and refresh the lockfile entries accordingly. -
Updated dependencies [
a640079]:- @langchain/[email protected]
Additional notes
Open source →Patch Changes
-
#10215
a68d354Thanks @colifran! - feat(openrouter): implement standard schema support for structured output -
Updated dependencies [
3682a8d]:- @langchain/[email protected]
- Updated dependencies [
- 0.1.421 Dec 2023
Release notes2 sources agree
Open source →Patch Changes
- Updated dependencies [
229a7ad,36fb0ef]:- @langchain/[email protected]
- Updated dependencies [
- 0.1.320 Dec 2023
Release notes
Open source →Patch Changes
- Updated dependencies [
d3e0809,71e53f1]:- @langchain/[email protected]
- @langchain/[email protected]
- Updated dependencies [
- 0.1.217 Dec 2023
Release notes2 sources agree
Open source →Patch Changes
- Updated dependencies [
2301260]:- @langchain/[email protected]
- Updated dependencies [
- 0.1.2-rc.017 Dec 2023pre-release
Nothing published for this version
- 0.1.113 Dec 2023
Release notes2 sources agree
Open source →Patch Changes
- Updated dependencies [
6b8ef6c]:- @langchain/[email protected]
Additional notes
Open source →Patch Changes
- #10721
20f27dfThanks @peterzaccha! - fix(langchain-ibm): handle API errors in streaming responses
- Updated dependencies [
- 0.1.012 Dec 2023
Release notes
Open source →Minor Changes
- #10593
0fb6fa4Thanks @christian-bromann! - feat(together-ai): migrate Together AI into provider package
Patch Changes
- Updated dependencies [
d6bf4fc]:- @langchain/[email protected]
Additional notes
Open source →Minor Changes
- #10592
ca0a41dThanks @christian-bromann! - feat: add @langchain/pgvector standalone package
Additional notes
Open source →Minor Changes
- #10591
d7a98cdThanks @christian-bromann! - feat: add @langchain/perplexity standalone provider package
Additional notes
Open source →Minor Changes
- #10590
ed8cda6Thanks @christian-bromann! - feat: scaffold @langchain/neo4j provider package
Patch Changes
- Updated dependencies [
d7a98cd,884c2d3,0fb6fa4,d3d0922]:- @langchain/[email protected]
- @langchain/[email protected]
Additional notes
Open source →Minor Changes
- #10589
ba03669Thanks @christian-bromann! - feat: add @langchain/ibm package - IBM watsonx.ai integration
Patch Changes
- Updated dependencies [
d3d0922]:- @langchain/[email protected]
Additional notes
Open source →Minor Changes
- #10594
884c2d3Thanks @christian-bromann! - feat(fireworks): extract standalone provider package
Patch Changes
- Updated dependencies [
d6bf4fc]:- @langchain/[email protected]
- #10593
- 0.0.1111 Dec 2023
Nothing published for this version
- 0.0.11-rc.211 Dec 2023pre-release
Nothing published for this version
- 0.0.11-rc.17 Dec 2023pre-release
Nothing published for this version
- 0.0.11-rc.07 Dec 2023pre-release
Nothing published for this version
- 0.0.107 Dec 2023
Nothing published for this version
- 0.0.96 Dec 2023
Nothing published for this version
- 0.0.84 Dec 2023
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- 0.0.74 Dec 2023
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- 0.0.62 Dec 2023
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- 0.0.52 Dec 2023
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- 0.0.41 Dec 2023
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- 0.0.31 Dec 2023
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- 0.0.228 Nov 2023
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- 0.0.123 Nov 2023
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- 0.0.022 Nov 2023
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