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Support zarr v3 - #387
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Support zarr v3#387
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alejoe91
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March 25, 2026 08:46
alejoe91
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Jul 31, 2026
alejoe91
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Jul 31, 2026
Co-authored-by: Alessio Buccino <alejoe9187@gmail.com>
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No zarr 3 release supports Python 3.10, so the test dependencies of this branch could not be installed there. The minimum Python version is now 3.11, in the package metadata, the test matrix, and the Read the Docs build. The test workflow set up Python 3.11 for every job, whatever the matrix said, so the jobs named for Python 3.10 and 3.14 both ran on 3.11. It now uses the matrix version. Saving a probe with zarr 2 installed raises an ImportError that says zarr 3 is required, in place of an AttributeError. A new test saves a probe in a zarr format 2 group and reads it back, since that is the format existing files are in. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Require Python 3.11 and zarr 3
chrishalcrow
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Oct 23, 2026
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Looks good. Played a bit saving v2 and v3 probes locally - v2 ones identical to main, v3 ones looks beautiful with their .jsons.
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Thanks @chrishalcrow |
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