PyPI · pypi:cython

Cython active

The Cython compiler for writing C extensions in the Python language.

The latest stable version of Cython is 3.3.1, published on 2026-11-01. Verified by Vigia on 2026-11-13.

Latest stable version	3.3.1
Published	2026-11-01 20:12:01 UTC
Install	`pip install --upgrade Cython`
Requires	`python >=3.9`
License	Apache-2.0
Advisories on latest version	none known
Last verified	2026-11-13 05:20:47 UTC
Sources	pypi.org

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Maintenance

Activity	active
Last stable release	2026-11-01 20:12:01 UTC · 11 days ago
Stable releases in the last 12 months	10
Published versions	158

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

Version history

Version	Published
`3.3.1`	2026-11-01 20:12:01 UTC
`3.3.0`	2026-08-22 05:16:36 UTC
`3.2.9`	2026-07-24 06:21:18 UTC
`3.2.8`	2026-06-30 07:41:55 UTC
`3.2.6`	2026-06-24 17:17:40 UTC
`3.2.5`	2026-05-23 19:34:05 UTC
`3.2.4`	2026-01-04 14:14:12 UTC
`3.1.8`	2026-01-03 18:30:22 UTC
`3.2.3`	2025-12-14 07:50:31 UTC
`3.2.2`	2025-11-30 12:48:18 UTC
`3.2.1`	2025-11-12 19:02:56 UTC
`3.1.7`	2025-11-12 16:46:27 UTC
`3.2.0`	2025-11-05 13:35:00 UTC
`3.1.6`	2025-10-23 12:38:16 UTC
`3.1.5`	2025-10-20 06:06:48 UTC
`3.1.4`	2025-09-16 07:20:29 UTC
`3.1.3`	2025-08-13 06:19:09 UTC
`3.1.2`	2025-06-09 07:08:44 UTC
`3.1.1`	2025-05-19 09:44:50 UTC
`3.1.0`	2025-05-08 20:25:31 UTC

Showing the 20 most recent of 143 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`	`3.2.9`
`python 3.9`	`3.3.1`
`python 3.10`	`3.3.1`
`python 3.11`	`3.3.1`
`python 3.12`	`3.3.1`
`python 3.13`	`3.3.1`

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Frequently asked questions

What is the latest version of Cython?

The latest stable version of Cython is 3.3.1, published on 2026-11-01. Verified by Vigia on 2026-11-13.

How do I install the latest version of Cython?

Run pip install --upgrade Cython. The latest stable version is 3.3.1 (verified 2026-11-13).

Is Cython deprecated?

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

Which Python version does Cython require?

Cython 3.3.1 declares this requirement: python >=3.9.

Does Cython 3.3.1 have known vulnerabilities?

No known advisories affect Cython 3.3.1 according to the data Vigia checks.

Is Cython still maintained?

Cython published 10 stable releases in the last 12 months; the most recent was 11 days ago. Activity: active.

Observed changes

Sun Nov 01 2026 20:13:49 GM +0000 (Coordinated Universal Time) — released 3.3.0 → 3.3.1

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