less
npmactive
less last released 4.9.1 on 2026-09-02. Its latest version requires Node.js >=18.
Facts
- Latest release
- 4.9.1, (1 month ago)
- First published
- (15 years ago)
- Releases in the last 12 months
- 30
- Median days between releases
- 3
- Median days between major versions
- 1,190
- Monthly downloads
- 47,336,482
- License
- Apache-2.0
- Repository
- github.com/less/less.js
- Homepage
- lesscss.org
- Source
- registry.npmjs.org (checked 2026-10-19)
Major versions
4 major versions have been published.
| Major | First version | First released | Latest version | Latest released |
|---|---|---|---|---|
| 4 | 4.0.0 | 2020-12-18 | 4.9.1 | 2026-09-02 |
| 3 | 3.0.0 | 2018-02-11 | 3.13.1 | 2020-12-18 |
| 2 | 2.0.0 | 2014-11-09 | 2.7.3 | 2017-10-24 |
| 1 | 1.0.10 | 2011-01-23 | 1.7.5 | 2014-09-03 |
Runtime requirements
The latest version of less declares these runtime constraints.
| Runtime | Constraint | Minimum version | Since version | Since |
|---|---|---|---|---|
| Node.js | >=18 | 18.0.0 | 4.6.0 | 2026-03-10 |
Supported runtimes
The latest version of less runs on 9 tracked runtime releases.
| Runtime | Cycle | Released | End of life | LTS |
|---|---|---|---|---|
| Node.js | 26 | 2026-05-05 | 2029-04-30 | yes |
| Node.js | 25 | 2025-10-15 | 2026-06-01 | |
| Node.js | 24 | 2025-05-06 | 2028-04-30 | yes |
| Node.js | 23 | 2024-10-16 | 2025-06-01 | |
| Node.js | 22 | 2024-04-24 | 2027-04-30 | yes |
| Node.js | 21 | 2023-10-17 | 2024-06-01 | |
| Node.js | 20 | 2023-04-18 | 2026-04-30 | yes |
| Node.js | 19 | 2022-10-18 | 2023-06-01 | |
| Node.js | 18 | 2022-04-19 | 2025-04-30 | yes |
Keelbench tracks end-of-life dates for 469 products, updated daily. Check your repositories against these dates with Deps.