PyPI · pypi:cattrs

cattrs active

Composable complex class support for attrs and dataclasses.

The latest stable version of cattrs is 26.2.1, published on 2026-09-26. Verified by Vigia on 2026-11-13.

Latest stable version	26.2.1
Published	2026-09-26 20:53:19 UTC
Install	`pip install --upgrade cattrs`
Requires	`python >=3.10`
License	MIT
Advisories on latest version	none known
Last verified	2026-11-13 19:08:16 UTC
Sources	pypi.org

Maintenance

Activity	active
Last stable release	2026-09-26 20:53:19 UTC · 47 days ago
Stable releases in the last 12 months	3
Published versions	44

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

Version history

Version	Published
`26.2.1`	2026-09-26 20:53:19 UTC
`26.2.0`	2026-09-06 20:31:56 UTC
`26.1.0`	2026-02-18 22:15:17 UTC
`25.3.0`	2025-10-07 12:26:06 UTC
`25.2.0`	2025-08-31 20:41:57 UTC
`25.1.1`	2025-06-04 20:27:13 UTC
`25.1.0`	2025-05-31 09:57:55 UTC
`24.1.3`	2025-03-25 15:00:58 UTC
`24.1.2`	2024-09-22 14:58:34 UTC
`24.1.1`	2024-09-11 12:08:19 UTC
`24.1.0`	2024-08-28 14:45:12 UTC
`23.2.3`	2023-11-30 22:19:19 UTC
`23.2.2`	2023-11-21 11:56:01 UTC
`23.2.1`	2023-11-18 00:29:55 UTC
`23.2.0` withdrawn	2023-11-17 16:55:50 UTC
`23.1.2`	2023-06-02 00:20:31 UTC
`23.1.1`	2023-05-30 21:16:17 UTC
`23.1.0` withdrawn	2023-05-30 15:47:15 UTC
`22.2.0`	2022-10-03 11:00:36 UTC
`22.1.0`	2022-04-03 18:23:02 UTC

Showing the 20 most recent of 41 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`	`24.1.3`
`python 3.9`	`25.3.0`
`python 3.10`	`26.2.1`
`python 3.11`	`26.2.1`
`python 3.12`	`26.2.1`
`python 3.13`	`26.2.1`

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Frequently asked questions

What is the latest version of cattrs?

The latest stable version of cattrs is 26.2.1, published on 2026-09-26. Verified by Vigia on 2026-11-13.

How do I install the latest version of cattrs?

Run pip install --upgrade cattrs. The latest stable version is 26.2.1 (verified 2026-11-13).

Is cattrs deprecated?

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

Which Python version does cattrs require?

cattrs 26.2.1 declares this requirement: python >=3.10.

Does cattrs 26.2.1 have known vulnerabilities?

No known advisories affect cattrs 26.2.1 according to the data Vigia checks.

Is cattrs still maintained?

cattrs published 3 stable releases in the last 12 months; the most recent was 47 days ago. Activity: active.

Observed changes

No changes observed yet since Vigia started tracking this package.

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