flask
PyPIactive
flask last released 3.1.3 on 2026-02-19. Its latest version requires Python >=3.9.
Facts
- Latest release
- 3.1.3, (8 months ago)
- First published
- (16 years ago)
- Releases in the last 12 months
- 1
- Median days between releases
- 181
- Median days between major versions
- 1,086
- Monthly downloads
- 200,523,256
- License
- BSD-3-Clause
- Repository
- github.com/pallets/flask
- Source
- pypi.org (checked 2026-10-19)
Major versions
4 major versions have been published.
| Major | First version | First released | Latest version | Latest released |
|---|---|---|---|---|
| 3 | 3.0.0 | 2023-09-30 | 3.1.3 | 2026-02-19 |
| 2 | 2.0.0rc1 | 2021-04-16 | 2.3.3 | 2023-08-21 |
| 1 | 1.0 | 2018-04-26 | 1.1.4 | 2021-05-14 |
| 0 | 0.1 | 2010-04-16 | 0.12.5 | 2020-02-10 |
Runtime requirements
The latest version of flask declares these runtime constraints.
| Runtime | Constraint | Minimum version | Since version | Since |
|---|---|---|---|---|
| Python | >=3.9 | 3.9 | 3.1.0 | 2024-11-13 |
Supported runtimes
The latest version of flask runs on 7 tracked runtime releases.
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