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PyPI · pypi:zarr

zarr active

An implementation of chunked, compressed, N-dimensional arrays for Python

The latest stable version of zarr is 3.4.2, published on 2026-10-27. Verified by Vigia on 2026-11-13.

Latest stable version3.4.2
Published2026-10-27 15:31:08 UTC
Installpip install --upgrade zarr
Requirespython >=3.12
LicenseMIT
Advisories on latest versionnone known
Last verified2026-11-13 15:41:28 UTC
Sourcespypi.org

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Maintenance

Activityactive
Last stable release2026-10-27 15:31:08 UTC · 17 days ago
Stable releases in the last 12 months9
Published versions122

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

Version history

VersionPublished
3.4.22026-10-27 15:31:08 UTC
3.4.12026-10-08 17:14:23 UTC
3.4.02026-09-15 20:58:36 UTC
3.3.02026-07-30 16:35:08 UTC
3.2.12026-05-05 12:37:20 UTC
3.2.02026-04-30 22:18:01 UTC
3.1.62026-03-23 17:25:17 UTC
3.1.52025-11-21 14:05:59 UTC
3.1.42025-11-21 00:09:27 UTC
3.1.32025-09-18 19:32:40 UTC
3.1.22025-08-25 15:32:29 UTC
3.1.12025-07-30 11:51:34 UTC
3.1.02025-07-15 07:48:51 UTC
3.0.102025-07-03 17:29:25 UTC
3.0.92025-07-01 08:31:11 UTC
3.0.82025-05-19 14:18:58 UTC
3.0.7 withdrawn2025-04-21 13:43:23 UTC
2.18.72025-04-09 07:59:27 UTC
2.18.62025-04-08 12:45:15 UTC
2.18.52025-03-28 13:29:48 UTC

Showing the 20 most recent of 90 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 3.82.16.1
python 3.92.18.2
python 3.102.18.3
python 3.113.1.6
python 3.123.4.2
python 3.133.4.2

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Frequently asked questions

What is the latest version of zarr?

The latest stable version of zarr is 3.4.2, published on 2026-10-27. Verified by Vigia on 2026-11-13.

How do I install the latest version of zarr?

Run pip install --upgrade zarr. The latest stable version is 3.4.2 (verified 2026-11-13).

Is zarr deprecated?

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

Which Python version does zarr require?

zarr 3.4.2 declares this requirement: python >=3.12.

Does zarr 3.4.2 have known vulnerabilities?

No known advisories affect zarr 3.4.2 according to the data Vigia checks.

Is zarr still maintained?

zarr published 9 stable releases in the last 12 months; the most recent was 17 days ago. Activity: active.

Observed changes

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