PyPI · pypi:kiwisolver

kiwisolver active

A fast implementation of the Cassowary constraint solver

The latest stable version of kiwisolver is 1.5.1, published on 2026-08-28. Verified by Vigia on 2026-11-13.

Latest stable version	1.5.1
Published	2026-08-28 10:24:43 UTC
Install	`pip install --upgrade kiwisolver`
Requires	`python >=3.10`
License	—
Advisories on latest version	none known
Last verified	2026-11-13 05:06:46 UTC
Sources	pypi.org

Maintenance

Activity	active
Last stable release	2026-08-28 10:24:43 UTC · 76 days ago
Stable releases in the last 12 months	2
Published versions	24

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

Version history

Version	Published
`1.5.1`	2026-08-28 10:24:43 UTC
`1.5.0`	2026-03-09 13:12:37 UTC
`1.4.9`	2025-08-10 21:25:35 UTC
`1.4.8`	2024-12-24 18:28:17 UTC
`1.4.7`	2024-09-04 09:03:44 UTC
`1.4.6`	2024-09-03 16:35:59 UTC
`1.4.5`	2023-08-24 09:28:18 UTC
`1.4.4`	2022-07-15 20:37:00 UTC
`1.4.3`	2022-06-13 12:34:00 UTC
`1.4.2`	2022-03-28 20:39:35 UTC
`1.4.1`	2022-03-27 16:07:59 UTC
`1.4.0`	2022-03-14 21:48:01 UTC
`1.3.2`	2021-08-27 08:15:45 UTC
`1.3.1`	2020-11-02 02:32:43 UTC
`1.3.0` withdrawn	2020-10-28 03:37:50 UTC
`1.2.0`	2020-04-01 22:12:59 UTC
`1.1.0`	2019-04-24 22:47:49 UTC
`1.0.1`	2017-10-24 15:48:35 UTC
`1.0.0`	2017-09-06 14:45:58 UTC
`0.1.3`	2014-07-12 18:07:28 UTC

Showing the 20 most recent of 23 versions. JSON

Version compatibility

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

Runtime	Newest compatible version
`python 3.8`	`1.4.7`
`python 3.9`	`1.4.7`
`python 3.10`	`1.5.1`
`python 3.11`	`1.5.1`
`python 3.12`	`1.5.1`
`python 3.13`	`1.5.1`

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Frequently asked questions

What is the latest version of kiwisolver?

The latest stable version of kiwisolver is 1.5.1, published on 2026-08-28. Verified by Vigia on 2026-11-13.

How do I install the latest version of kiwisolver?

Run pip install --upgrade kiwisolver. The latest stable version is 1.5.1 (verified 2026-11-13).

Is kiwisolver deprecated?

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

Which Python version does kiwisolver require?

kiwisolver 1.5.1 declares this requirement: python >=3.10.

Does kiwisolver 1.5.1 have known vulnerabilities?

No known advisories affect kiwisolver 1.5.1 according to the data Vigia checks.

Is kiwisolver still maintained?

kiwisolver published 2 stable releases in the last 12 months; the most recent was 76 days ago. Activity: active.

Observed changes

No changes observed yet since Vigia started tracking this package.

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