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PyPI · pypi:flash-attn

flash-attn active

Flash Attention: Fast and Memory-Efficient Exact Attention

The latest stable version of flash-attn is 2.8.3.post2, published on 2026-10-14. Verified by Vigia on 2026-11-13.

Latest stable version2.8.3.post2
Published2026-10-14 01:37:12 UTC
Installpip install --upgrade flash-attn
Requirespython >=3.9
License—
Advisories on latest versionnone known
Last verified2026-11-13 07:59:57 UTC
Sourcespypi.org

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Maintenance

Activityactive
Last stable release2026-10-14 01:37:12 UTC · 30 days ago
Stable releases in the last 12 months2
Published versions77

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

Version history

VersionPublished
2.8.3.post22026-10-14 01:37:12 UTC
2.8.3.post12026-06-11 04:35:21 UTC
2.8.32025-08-15 08:28:12 UTC
2.8.22025-07-24 16:06:45 UTC
2.8.12025-07-10 05:16:39 UTC
2.8.0.post22025-06-15 01:39:32 UTC
2.7.4.post12025-01-30 06:39:51 UTC
2.7.32025-01-12 03:29:38 UTC
2.7.2.post12024-12-08 05:58:10 UTC
2.7.1.post42024-12-07 16:16:12 UTC
2.7.0.post22024-11-13 23:53:29 UTC
2.6.32024-07-25 23:45:52 UTC
2.6.22024-07-23 19:49:22 UTC
2.6.12024-07-13 02:00:02 UTC
2.6.0.post12024-07-11 20:31:36 UTC
2.5.9.post12024-05-27 05:19:16 UTC
2.5.82024-04-26 23:45:51 UTC
2.5.72024-04-08 17:40:33 UTC
2.5.62024-03-02 13:50:58 UTC
2.5.52024-02-22 05:34:27 UTC

Showing the 20 most recent of 77 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 3.82.7.0.post2
python 3.92.8.3.post2
python 3.102.8.3.post2
python 3.112.8.3.post2
python 3.122.8.3.post2
python 3.132.8.3.post2

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Frequently asked questions

What is the latest version of flash-attn?

The latest stable version of flash-attn is 2.8.3.post2, published on 2026-10-14. Verified by Vigia on 2026-11-13.

How do I install the latest version of flash-attn?

Run pip install --upgrade flash-attn. The latest stable version is 2.8.3.post2 (verified 2026-11-13).

Is flash-attn deprecated?

No. flash-attn is not marked as deprecated in the registry.

Which Python version does flash-attn require?

flash-attn 2.8.3.post2 declares this requirement: python >=3.9.

Does flash-attn 2.8.3.post2 have known vulnerabilities?

No known advisories affect flash-attn 2.8.3.post2 according to the data Vigia checks.

Is flash-attn still maintained?

flash-attn published 2 stable releases in the last 12 months; the most recent was 30 days ago. Activity: active.

Observed changes

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