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Monthly issue metrics report

Status: Open.

#4111 In zarr-developers/zarr-python;

· github-actions opened on Jul 1, 2026

zarr-metadata: add unions of metadata objects for core + extensions

enhancementNew features or improvementsNew features or improvements

zarr-metadataSpecific to the zarr-metadata sub-packageSpecific to the zarr-metadata sub-package

Status: Open.

#4095 In zarr-developers/zarr-python;

· d-v-b opened on Jun 22, 2026

test_multiprocessing[fork] fails on Python 3.15

bugPotential issues with the zarr-python libraryPotential issues with the zarr-python library

Status: Open.

#4086 In zarr-developers/zarr-python;

· QuLogic opened on Jun 22, 2026

Numpy-compatible typevars in array classes?

types

Status: Open.

#4061 In zarr-developers/zarr-python;

· sneakers-the-rat opened on Jun 11, 2026

[docs] very basic zarr tutorial -- "zarr for absolute beginners"

documentationImprovements to the documentationImprovements to the documentation

Status: Open.

#4056 In zarr-developers/zarr-python;

· d-v-b opened on Jun 10, 2026

Public API for determining if an array is sharded

enhancementNew features or improvementsNew features or improvements

Status: Open.

#4036 In zarr-developers/zarr-python;

· maxrjones opened on Jun 4, 2026

Public API for determining chunk grid type

enhancementNew features or improvementsNew features or improvements

Status: Open.

#4035 In zarr-developers/zarr-python;

· maxrjones opened on Jun 4, 2026

ObjectStore.list_dir("g") raises ValueError when an object keyed "g/" exists

bugPotential issues with the zarr-python libraryPotential issues with the zarr-python library

Status: Open.

#4032 In zarr-developers/zarr-python;

· blinkybool opened on Jun 4, 2026

VerboseModule cannot be pickled

bugPotential issues with the zarr-python libraryPotential issues with the zarr-python library

Status: Open.

#4029 In zarr-developers/zarr-python;

· vladidobro opened on Jun 3, 2026

fold AsyncArray methods into Array

refactorChanges to the internalsChanges to the internals

Status: Open.

#4027 In zarr-developers/zarr-python;

· d-v-b opened on Jun 3, 2026

Move rectilinear chunk grid from experimental to stable

choreMaintenance workMaintenance work

enhancementNew features or improvementsNew features or improvements

Status: Open.

#4025 In zarr-developers/zarr-python;

· maxrjones opened on Jun 2, 2026

Monthly issue metrics report

choreMaintenance workMaintenance work

Status: Open.

#4021 In zarr-developers/zarr-python;

· github-actions opened on Jun 1, 2026