PyPI · pypi:mutmut

mutmut active

mutation testing for Python 3

The latest stable version of mutmut is 3.8.1, published on 2026-10-28. Verified by Vigia on 2026-11-13.

Latest stable version	3.8.1
Published	2026-10-28 07:54:36 UTC
Install	`pip install --upgrade mutmut`
Requires	`python >=3.10`
License	BSD-3-Clause
Advisories on latest version	none known
Last verified	2026-11-13 14:10:44 UTC
Sources	pypi.org

Maintenance

Activity	active
Last stable release	2026-10-28 07:54:36 UTC · 16 days ago
Stable releases in the last 12 months	6
Published versions	65

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

Version history

Version	Published
`3.8.1`	2026-10-28 07:54:36 UTC
`3.8.0`	2026-09-12 16:53:56 UTC
`3.7.0`	2026-07-31 10:52:58 UTC
`3.6.0`	2026-06-06 07:44:50 UTC
`3.5.0`	2026-02-22 18:46:41 UTC
`3.4.0`	2025-11-19 09:28:05 UTC
`3.3.1`	2025-07-30 08:40:49 UTC
`3.3.0`	2025-05-18 18:22:57 UTC
`3.2.3`	2025-01-14 02:20:51 UTC
`3.2.2`	2024-11-20 11:26:32 UTC
`3.2.1`	2024-11-13 07:27:42 UTC
`3.2.0`	2024-10-26 02:51:10 UTC
`3.1.0`	2024-10-22 04:26:10 UTC
`3.0.5`	2024-10-20 22:44:04 UTC
`3.0.4` withdrawn	2024-10-20 22:14:08 UTC
`3.0.3` withdrawn	2024-10-20 22:03:09 UTC
`3.0.2` withdrawn	2024-10-20 17:21:23 UTC
`3.0.1` withdrawn	2024-10-20 13:17:19 UTC
`3.0.0` withdrawn	2024-10-20 12:58:21 UTC
`2.5.1`	2024-08-15 13:55:23 UTC

Showing the 20 most recent of 65 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`	`3.3.1`
`python 3.9`	`3.3.1`
`python 3.10`	`3.8.1`
`python 3.11`	`3.8.1`
`python 3.12`	`3.8.1`
`python 3.13`	`3.8.1`

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Frequently asked questions

What is the latest version of mutmut?

The latest stable version of mutmut is 3.8.1, published on 2026-10-28. Verified by Vigia on 2026-11-13.

How do I install the latest version of mutmut?

Run pip install --upgrade mutmut. The latest stable version is 3.8.1 (verified 2026-11-13).

Is mutmut deprecated?

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

Which Python version does mutmut require?

mutmut 3.8.1 declares this requirement: python >=3.10.

Does mutmut 3.8.1 have known vulnerabilities?

No known advisories affect mutmut 3.8.1 according to the data Vigia checks.

Is mutmut still maintained?

mutmut published 6 stable releases in the last 12 months; the most recent was 16 days ago. Activity: active.

Observed changes

Wed Oct 28 2026 07:57:36 GM +0000 (Coordinated Universal Time) — released 3.8.0 → 3.8.1

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