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PyPI · #1774 most downloaded on PyPI
An implementation of chunked, compressed, N-dimensional arrays for Python
Last release 18 days ago
15 Sep 2026
Ships fairly regularly
a new release about every 5 weeks
Nearly every release is documented
notes for 59 of the last 60 stable releases
8 versions withdrawn
withdrawn after publishing
11 years old
120 releases · first in 2015
Avoid deprecated product in numpy=1.25 by @jrbourbeau in https://github.com/zarr-developers/zarr-python/pull/1405
See release notes https://zarr.readthedocs.io/en/latest/release.html#release-2-15-0
meta_array by @madsbk in https://github.com/zarr-developers/zarr-python/pull/1131codecov by @jakirkham in https://github.com/zarr-developers/zarr-python/pull/1391product in numpy=1.25 by @jrbourbeau in https://github.com/zarr-developers/zarr-python/pull/1405normalize_fill_value for structured arrays by @alanhdu in https://github.com/zarr-developers/zarr-python/pull/1397open_array(): adding the meta_array argument by @madsbk in https://github.com/zarr-developers/zarr-python/pull/1396Full Changelog: https://github.com/zarr-developers/zarr-python/compare/v2.14.2...v2.15.0
One column per quarter.
See release notes https://zarr.readthedocs.io/en/latest/release.html#release-2-15-0
See release notes https://zarr.readthedocs.io/en/latest/release.html#release-2-15-0
See release notes https://zarr.readthedocs.io/en/latest/release.html#release-2-15-0
See release notes https://zarr.readthedocs.io/en/latest/release.html#release-2-15-0
meta_array by @madsbk in https://github.com/zarr-developers/zarr-python/pull/1131codecov by @jakirkham in https://github.com/zarr-developers/zarr-python/pull/1391Full Changelog: https://github.com/zarr-developers/zarr-python/compare/v2.14.2...v2.15.0a1
See release notes https://zarr.readthedocs.io/en/stable/release.html#release-2-14-2
See release notes https://zarr.readthedocs.io/en/stable/release.html#release-2-14-2
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See release notes https://zarr.readthedocs.io/en/stable/release.html#release-2-14-1
See release notes https://zarr.readthedocs.io/en/stable/release.html#release-2-14-0
See release notes https://zarr.readthedocs.io/en/stable/release.html#release-2-14-0
and the lovely new documentation theme at https://zarr.readthedocs.io/ !
See release notes https://zarr.readthedocs.io/en/stable/release.html#release-2-13-6
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See release notes https://zarr.readthedocs.io/en/stable/release.html#release-2-10-3.
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See release notes https://zarr.readthedocs.io/en/stable/release.html#release-2-10-1.
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See release notes https://zarr.readthedocs.io/en/stable/release.html#release-2-9-3.
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