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npm · npm:langchain

langchain active

Typescript bindings for langchain

The latest stable version of langchain is 1.6.5, published on 2026-11-11. Verified by Vigia on 2026-11-12.

Latest stable version1.6.5
Published2026-11-11 22:05:13 UTC
Installnpm install langchain@latest
Requires (engines){"node":">=20"}
Peer dependencies@langchain/core ^1.4.0
Dist-tagsrc: 1.5.11-rc.0 dev: 1.5.1-dev-1781824996270 next: 1.0.0-alpha.9 alpha: 1.0.0-alpha.9 latest: 1.6.5 tag-for-publishing-older-releases: 0.2.20
LicenseMIT
Advisories on latest versionnone known
Last verified2026-11-12 20:17:54 UTC
Sourcesapi.deps.dev, registry.npmjs.org, registry.npmjs.org

Maintenance

Activityactive
Last stable release2026-11-10 18:43:06 UTC · 2 days ago
Stable releases in the last 12 months87
Published versions478

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

VersionPublished
1.6.42026-11-10 18:43:06 UTC
1.6.32026-11-07 04:27:12 UTC
1.6.22026-11-05 20:24:21 UTC
1.6.12026-11-03 06:23:11 UTC
1.6.02026-10-28 00:55:53 UTC
1.5.202026-10-27 01:38:52 UTC
1.5.192026-10-22 11:26:50 UTC
1.5.182026-10-16 00:07:39 UTC
1.5.172026-10-15 21:47:08 UTC
1.5.162026-10-08 13:45:45 UTC
1.5.152026-10-01 01:17:31 UTC
1.5.142026-09-27 06:12:48 UTC
1.5.122026-09-22 00:01:40 UTC
1.5.112026-09-09 20:43:09 UTC
1.5.102026-08-20 01:18:36 UTC
1.5.92026-08-14 16:41:02 UTC
1.5.82026-08-13 16:49:34 UTC
1.5.72026-08-13 07:16:27 UTC
1.5.62026-08-12 21:26:10 UTC
1.5.52026-08-05 22:02:05 UTC

Showing the 20 most recent of 398 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

RuntimeNewest compatible version
node 160.0.42
node 180.3.37
node 201.6.4
node 221.6.4
node 241.6.4

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Frequently asked questions

What is the latest version of langchain?

The latest stable version of langchain is 1.6.5, published on 2026-11-11. Verified by Vigia on 2026-11-12.

How do I install the latest version of langchain?

Run npm install langchain@latest. The latest stable version is 1.6.5 (verified 2026-11-12).

Is langchain deprecated?

No. langchain is not marked as deprecated in the registry.

Which Node.js version does langchain require?

langchain 1.6.5 declares this requirement: {"node":">=20"}.

Does langchain 1.6.5 have known vulnerabilities?

No known advisories affect langchain 1.6.5 according to the data Vigia checks.

Is langchain still maintained?

langchain published 87 stable releases in the last 12 months; the most recent was 2 days ago. Activity: active.

Observed changes

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