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PyPI · pypi:pyrefly

pyrefly active

A fast type checker and language server for Python with powerful IDE features

The latest stable version of pyrefly is 1.4.1, published on 2026-11-05. Verified by Vigia on 2026-11-13.

Latest stable version1.4.1
Published2026-11-05 02:43:40 UTC
Installpip install --upgrade pyrefly
Requirespython >=3.8
License—
Advisories on latest versionnone known
Last verified2026-11-13 03:03:04 UTC
Sourcespypi.org

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Maintenance

Activityactive
Last stable release2026-11-05 02:43:40 UTC · 8 days ago
Stable releases in the last 12 months57
Published versions154

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

Version history

VersionPublished
1.4.12026-11-05 02:43:40 UTC
1.4.02026-10-15 16:53:43 UTC
1.3.22026-09-28 22:09:40 UTC
1.2.12026-09-18 00:01:34 UTC
1.3.12026-09-15 05:08:58 UTC
1.3.02026-09-11 00:41:11 UTC
1.2.02026-08-01 02:56:02 UTC
1.1.12026-06-18 23:45:13 UTC
1.1.02026-06-17 16:03:37 UTC
1.0.02026-05-12 20:12:20 UTC
0.64.12026-05-08 03:37:30 UTC
0.64.02026-05-06 17:28:19 UTC
0.63.12026-04-29 05:59:27 UTC
0.63.02026-04-27 21:44:05 UTC
0.62.02026-04-20 17:11:43 UTC
0.61.12026-04-17 18:47:06 UTC
0.61.02026-04-13 20:05:58 UTC
0.60.22026-04-10 17:59:13 UTC
0.60.12026-04-09 20:02:35 UTC
0.60.02026-04-06 19:57:00 UTC

Showing the 20 most recent of 140 versions. JSON

Version compatibility

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

RuntimeNewest compatible version
python 3.81.4.1
python 3.91.4.1
python 3.101.4.1
python 3.111.4.1
python 3.121.4.1
python 3.131.4.1

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Frequently asked questions

What is the latest version of pyrefly?

The latest stable version of pyrefly is 1.4.1, published on 2026-11-05. Verified by Vigia on 2026-11-13.

How do I install the latest version of pyrefly?

Run pip install --upgrade pyrefly. The latest stable version is 1.4.1 (verified 2026-11-13).

Is pyrefly deprecated?

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

Which Python version does pyrefly require?

pyrefly 1.4.1 declares this requirement: python >=3.8.

Does pyrefly 1.4.1 have known vulnerabilities?

No known advisories affect pyrefly 1.4.1 according to the data Vigia checks.

Is pyrefly still maintained?

pyrefly published 57 stable releases in the last 12 months; the most recent was 8 days ago. Activity: active.

Observed changes

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