@langchain/core
npmactive
@langchain/core last released 1.2.18 on 2026-10-15. Its latest version requires Node.js >=20.
Facts
- Latest release
- 1.2.18, (9 days ago)
- First published
- (2 years ago)
- Releases in the last 12 months
- 110
- Median days between releases
- 2
- Median days between major versions
- 695
- Monthly downloads
- 25,359,471
- License
- MIT
- Repository
- github.com/langchain-ai/langchainjs
- Source
- registry.npmjs.org (checked 2026-10-19)
Major versions
2 major versions have been published.
| Major | First version | First released | Latest version | Latest released |
|---|---|---|---|---|
| 1 | 1.0.0 | 2025-10-17 | 1.2.18 | 2026-10-15 |
| 0 | 0.0.0 | 2023-11-22 | 0.3.80 | 2025-12-23 |
Runtime requirements
The latest version of @langchain/core declares these runtime constraints.
| Runtime | Constraint | Minimum version | Since version | Since |
|---|---|---|---|---|
| Node.js | >=20 | 20.0.0 | 1.0.0 | 2025-10-17 |
Supported runtimes
The latest version of @langchain/core runs on 7 tracked runtime releases.
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