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Bump zarr from 2.18.4 to 3.1.5 #474

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Bump zarr from 2.18.4 to 3.1.5 #474

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Bumps zarr from 2.18.4 to 3.1.5.

Release notes

Sourced from zarr's releases.

v3.1.5

What's Changed

Full Changelog: zarr-developers/zarr-python@v3.1.4...v3.1.5

v3.1.4

See release notes at https://zarr.readthedocs.io/en/stable/release-notes.html

What's Changed

... (truncated)

Changelog

Sourced from zarr's changelog.

zarr 3.1.5 (2025-11-21)

Bugfixes

  • Fix formatting errors in the release notes section of the docs. (#3594)

3.1.4 (2025-11-20)

Features

  • The Array class can now also be parametrized in the same manner as the AsyncArray class, allowing Zarr format v2 and v3 Arrays to be distinguished. New types have been added to zarr.types to help with this. (#3304)
  • Adds zarr.experimental.cache_store.CacheStore, a Store that implements caching by combining two other Store instances. See the docs page for more information about this feature. (#3366)
  • Adds a zarr.experimental module for unstable user-facing features. (#3490)
  • Add a array.target_shard_size_bytes to [zarr.config][] to allow users to set a maximum number of bytes per-shard when shards="auto" in, for example, [zarr.create_array][]. (#3547)
  • Make async_array on the [zarr.Array][] class public (_async_array will remain untouched, but its stability is not guaranteed). (#3556)

Bugfixes

  • Fix a bug that prevented PCodec from being properly resolved when loading arrays using that compressor. (#3483)
  • Fixed a bug that prevented Zarr Python from opening Zarr V3 array metadata documents that contained extra keys with permissible values (dicts with a "must_understand" key set to "false"). (#3530)
  • Fixed a bug where the "consolidated_metadata" key was written to metadata documents even when consolidated metadata was not used, resulting in invalid metadata documents. (#3535)
  • Improve write performance to large shards by up to 10x. (#3560)

Improved Documentation

  • Use mkdocs-material for Zarr-Python documentation (#3118)
  • Document different values of StoreLike with examples in the user guide. (#3303)
  • Reorganize the top-level examples directory to give each example its own sub-directory. Adds content to the docs for each example. (#3502)
  • Updated 3.0 Migration Guide to include function signature change to zarr.Array.resize function. (#3536)

Misc

zarr 3.1.3 (2025-09-18)

Features

  • Add a command-line interface to migrate v2 Zarr metadata to v3. Corresponding functions are also provided under zarr.metadata. (#1798)
  • Add obstore implementation of delete_dir. (#3310)
  • Adds a registry for chunk key encodings for extensibility. This allows users to implement a custom ChunkKeyEncoding, which can be registered via register_chunk_key_encoding or as an entry point under zarr.chunk_key_encoding. (#3436)
  • Trying to open a group at a path where an array already exists now raises a helpful error. (#3444)

Bugfixes

... (truncated)

Commits

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@dependabot
Bump zarr from 2.18.4 to 3.1.5
7d93d45 
Bumps [zarr](https://github.com/zarr-developers/zarr-python) from 2.18.4 to 3.1.5.
- [Release notes](https://github.com/zarr-developers/zarr-python/releases)
- [Changelog](https://github.com/zarr-developers/zarr-python/blob/main/docs/release-notes.md)
- [Commits](zarr-developers/zarr-python@v2.18.4...v3.1.5)

---
updated-dependencies:
- dependency-name: zarr
  dependency-version: 3.1.5
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file python Pull requests that update Python code labels Jan 5, 2026
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