v3.1.3

What's Changed

• Use atomic writes for new files in LocalStore by @shoyer in #3412
• Simplify local store tests by @shoyer in #3414
• Remove Store.set_partial_writes by @shoyer in #3413
• chore/unformatted exceptions by @d-v-b in #3403
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3423
• fix: ChunkCoords definition by @LDeakin in #3425
• specify default event loop for async tests by @d-v-b in #3424
• Ensure absolute paths work with consolidate metadata by @shoyer in #3428
• Fix creating groups with group() by @dstansby in #3431
• Raise more helpful errors in _dereference_path by @dstansby in #3392
• Pass read_only into LocalStore.open() by @shoyer in #3432
• Bump pypa/gh-action-pypi-publish from 1.12.4 to 1.13.0 in /.github/workflows in the github_actions group across 1 directory by @dependabot[bot] in #3434
• obstore delete_dir by @slowjazz in #3310
• Bump the actions group across 1 directory with 4 updates by @dependabot[bot] in #3439
• fix/shard iteration redux by @d-v-b in #3422
• feature(ci): updload nightly wheel to scientific python anaconda repo by @jhamman in #3449
• Document that copy() functions are not implemented by @dstansby in #3442
• allow int-like floats for int dtype fill values by @d-v-b in #3448
• Fix nightly-wheel tag by @jhamman in #3450
• chore/handle numcodecs codecs by @d-v-b in #3376
• Bump astral-sh/setup-uv from 6.6.1 to 6.7.0 in the actions group by @dependabot[bot] in #3455
• Raise helpful errors when opening a group with wrong node type. by @dstansby in #3444
• Minor fixes for zarr.codecs.numcodecs by @K-Meech in #3459
• docstring cleanup by @d-v-b in #3390
• Add CLI for converting v2 metadata to v3 by @K-Meech in #3257
• Add registry for chunk key encodings for extensibility by @RFLeijenaar in #3436
• fix:*-like creation routines take kwargs by @d-v-b in #2992
• Prevent creation of arrays/groups under a parent array by @K-Meech in #3407

New Contributors

• @RFLeijenaar made their first contribution in #3436

Full Changelog: v3.1.2...v3.1.3

v3.1.2

What's Changed

• Remove outdated v3 release announcement bullet from release notes by @nikkhilaaryan in #3235
• DOC: Remove Twitter icon in Zarr-Python by @star1327p in #3245
• Multiple imports for an import name by @DimitriPapadopoulos in #3234
• add unmerged changelog entry to release notes by @d-v-b in #3248
• add a section showing the parse_data_type function by @d-v-b in #3249
• make zdtype abstract methods raise notimplementederror by @d-v-b in #3251
• Provide pytest-plugin that registers a 'gpu' marker. by @TomAugspurger in #3258
• Update the link to CGGH non-profit organization by @star1327p in #3260
• Add numcodecs to downstream projects to check before release by @dstansby in #3262
• obstore implementations for .getsize and .getsize_prefix by @slowjazz in #3227
• remove warnings about vlen-utf8 and vlen-bytes codecs by @d-v-b in #3268
• Apply ruff/flake8-pytest-style rule PT012 by @DimitriPapadopoulos in #3267
• Fix order handling by @dstansby in #3112
• Use in and or instead of multipleif's by @DimitriPapadopoulos in #3266
• Apply ruff/flake8-pytest-style rule PT031 by @DimitriPapadopoulos in #3269
• Apply ruff/flake8-pytest-style rule PT030 by @DimitriPapadopoulos in #3270
• Improve migration guide for codecs by @dstansby in #3273
• improvements to parse_dtype by @d-v-b in #3264
• convert inf, -inf, nan to JSON by @d-v-b in #3280
• Give codecs docstrings by @dstansby in #3274
• PEP 639 compliance by @DimitriPapadopoulos in #3283
• Fix incorrect Group.nmembers for consolidated metadata by @csparker247 in #3287
• Bump copyright year in LICENSE file by @DimitriPapadopoulos in #3286
• Put back parse_data_type import by @dstansby in #3292
• Add script to check changelog entries by @dstansby in #3290
• Prevent lines containing ... being excluded from coverage by @K-Meech in #3298
• Add async oindex and vindex methods to AsyncArray by @TomNicholas in #3083
• Update CI & release checklist for release branch by @dstansby in #3312
• Ensure deterministic ordering of consolidated metadata by @lkluft in #3288
• Refactor make_store_path for clarity by @dstansby in #3308
• pin setuptools-scm to !=9.0.0 by @d-v-b in #3329
• DOC: update numpy versions in test case examples by @jo-mueller in #3331
• Fix test coverage by @dstansby in #3334
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3337
• refactor warnings by @d-v-b in #3098
• Fix typos by @DimitriPapadopoulos in #3346
• Write chunks with negative zero values and a zero fill value by @bojidar-bg in #3216
• The important metric is project coverage by @DimitriPapadopoulos in #3351
• Bump actions/download-artifact from 4 to 5 in the actions group by @dependabot[bot] in #3363
• use local imports in store ABC to avoid circular import issues by @d-v-b in #3372
• add numcodec protocol by @d-v-b in #3318
• ensure that we test examples with a fresh env by @d-v-b in #3371
• Update docs for user-facing create_array api on on Group. by @lhao03 in #3375
• Fix: respect write_empty_chunks when opening an existing array by @ianhi in #3378
• chore/remove chunk coords by @d-v-b in #3374
• docs: Update the link to sharding in the Zarr roadmap by @star1327p in #3380
• Relax obsolete constraints on setuptools-scm by @DimitriPapadopoulos in #3385
• Optimize getitem with empty chunks by @TomAugspurger in #3379
• chore/add missing tests by @d-v-b in #3353
• Fix typing in metadata tests by @dstansby in #3393
• Use PyPA well-known labels under project.urls by @DimitriPapadopoulos in #3386
• Added ArrayNotFoundError by @ruaridhg in #3367
• reraise the KeyError for unknown codecs with a more specific error class by @keewis in #3395
• fix chunk/shard iteration by @d-v-b in #3299
• Merge release notes from 3.1.1 by @dstansby in #3399
• Add default value to init_array config param. Update docstring. by @kgabor in #3391
• Prevent mode='r+' from creating new directories by @dstansby in #3307
• generate 3.1.2 release notes by @d-v-b in #3404

New Contributors

• @nikkhilaaryan made their first contribution in #3235
• @star1327p made their first contribution in #3245
• @slowjazz made their first contribution in #3227
• @csparker247 made their first contribution in #3287
• @K-Meech made their first contribution in #3298
• @TomNicholas made their first contribution in #3083
• @lkluft made their first contribution in #3288
• @jo-mueller made their first contribution in #3331
• @bojidar-bg made their first contribution in #3216
• @lhao03 made their first contribution in #3375
• @ruaridhg made their first contribution in #3367
• @keewis made their first contribution in #3395
• @kgabor made their first contribution in #3391

Full Changelog: v3.1.0...v3.1.2

v3.1.1

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

What's Changed

• Remove outdated v3 release announcement bullet from release notes by @nikkhilaaryan in #3235
• DOC: Remove Twitter icon in Zarr-Python by @star1327p in #3245
• Multiple imports for an import name by @DimitriPapadopoulos in #3234
• add unmerged changelog entry to release notes by @d-v-b in #3248
• add a section showing the parse_data_type function by @d-v-b in #3249
• make zdtype abstract methods raise notimplementederror by @d-v-b in #3251
• Provide pytest-plugin that registers a 'gpu' marker. by @TomAugspurger in #3258
• Update the link to CGGH non-profit organization by @star1327p in #3260
• Add numcodecs to downstream projects to check before release by @dstansby in #3262
• obstore implementations for .getsize and .getsize_prefix by @slowjazz in #3227
• remove warnings about vlen-utf8 and vlen-bytes codecs by @d-v-b in #3268
• Apply ruff/flake8-pytest-style rule PT012 by @DimitriPapadopoulos in #3267
• Fix order handling by @dstansby in #3112
• Use in and or instead of multipleif's by @DimitriPapadopoulos in #3266
• Apply ruff/flake8-pytest-style rule PT031 by @DimitriPapadopoulos in #3269
• Apply ruff/flake8-pytest-style rule PT030 by @DimitriPapadopoulos in #3270
• Improve migration guide for codecs by @dstansby in #3273
• improvements to parse_dtype by @d-v-b in #3264
• convert inf, -inf, nan to JSON by @d-v-b in #3280
• Give codecs docstrings by @dstansby in #3274
• PEP 639 compliance by @DimitriPapadopoulos in #3283
• Fix incorrect Group.nmembers for consolidated metadata by @csparker247 in #3287
• Bump copyright year in LICENSE file by @DimitriPapadopoulos in #3286
• Put back parse_data_type import by @dstansby in #3292
• Add script to check changelog entries by @dstansby in #3290
• Prevent lines containing ... being excluded from coverage by @K-Meech in #3298

New Contributors

• @nikkhilaaryan made their first contribution in #3235
• @star1327p made their first contribution in #3245
• @slowjazz made their first contribution in #3227
• @csparker247 made their first contribution in #3287
• @K-Meech made their first contribution in #3298

Full Changelog: v3.1.0...v3.1.1

v3.1.0

See release notes in the Zarr documentation

What's Changed

• refactor v3 data types by @d-v-b in #2874
• Fix URL to contributing guide by @lukasbindreiter in #3141
• Public API for buffer objects by @TomAugspurger in #2876
• Add GroupNotFound error to API docs by @dstansby in #3149
• Get rid of old notebooks by @DimitriPapadopoulos in #2897
• Fix typing in test_v2 by @dstansby in #3143
• Clean up after getting rid of notebooks by @DimitriPapadopoulos in #3152
• Appending to dictionary following its definition by @DimitriPapadopoulos in #3159
• Apply ruff/flake8-pyi preview rule PYI059 by @DimitriPapadopoulos in #3154
• Disable codecov PR annotations by @maxrjones in #3166
• Update pre-commit hooks + mypy fixes by @dstansby in #3133
• Create read only copy if needed when opening a store path by @maxrjones in #3156
• Suppress FileNotFoundError when deleting keys in the obstore adapter by @lukasbindreiter in #3140
• string dtype fixes by @d-v-b in #3170
• Fix/windows int32 issue by @d-v-b in #3151
• fix: restore fill_value=None for zarr_format=2 by @ianhi in #3198
• Add NDBuffer.empty by @TomAugspurger in #3191
• document dtype extension by @d-v-b in #3157
• fix typo in warning by @d-v-b in #3206
• export more JSON types by @d-v-b in #3202
• Fix mypy 1.16 errors by @DimitriPapadopoulos in #3158
• Remove duplicate codecov configuration by @maxrjones in #3211
• Add human readable size for No. bytes stored to info_complete by @jsignell in #3190
• Update pre-commit ruff legacy alias by @DimitriPapadopoulos in #3214
• Add a release checklist issue template by @maxrjones in #3210
• Update documentation of remote store by @bevilacqc in #3212
• Make create_array signatures consistent by @d-v-b in #2819
• Cleanups to implementation of create() by @dstansby in #3111
• Remove redundant release note by @dstansby in #3223
• Warnings messages dictionary syntax fix by @MosGeo in #3231
• remove chunk encoding from config by @d-v-b in #3228
• Bump min numpy version by @dstansby in #3226
• Fix type of v2 compressors by @dstansby in #3232
• Update stateful/property tests. by @dcherian in #3161
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3213
• feat: add from_array_metadata_and_store to CodecPipeline by @LDeakin in #3233
• CI: update actions location by @bsipocz in #3237
• update 2819 release note by @d-v-b in #3230
• update release note for dtype refactor by @d-v-b in #3229
• remove usage of the _deprecate_positional_args decorator, and tests for its behavior by @d-v-b in #3225
• fix type hints for hypothesis test by @d-v-b in #3240
• fix obstore type hints by @d-v-b in #3242
• don't test self-deletion in stateful tests by @d-v-b in #3243
• 3.1.0 release notes by @d-v-b in #3241

New Contributors

• @lukasbindreiter made their first contribution in #3141
• @jsignell made their first contribution in #3190
• @bevilacqc made their first contribution in #3212
• @MosGeo made their first contribution in #3231
• @bsipocz made their first contribution in #3237

Full Changelog: v3.0.10...v3.1.0

v3.0.10

What's Changed

• Remove breaking check about auto_mkdir for FSSpecStore by @maxrjones in #3193
• Add missing import for AsyncFileSystemWrapper for _make_async in _fsspec.py by @tasansal in #3195

Full Changelog: v3.0.9...v3.0.10

v3.0.9

What's Changed

• (chore): release notes cleanup by @ilan-gold in #3074
• Implement Store.move by @brokkoli71 in #3021
• Error on invalid store mode by @dstansby in #3068
• (feat): use np.zeros for buffer creation with fill_value=0 by @ilan-gold in #3082
• add fill_value output to info by @d-v-b in #3081
• issues: add pep-723 to issue template by @ianhi in #3087
• Fix typing in test_codecs by @dstansby in #3095
• ruff rules: TCH → TC by @DimitriPapadopoulos in #3032
• Test using latest numpy by @dstansby in #3064
• remove insertion of vlen-string codec for v2 metadata creation by @d-v-b in #3100
• Add a GroupNotFoundError by @dstansby in #3066
• Use automatic chunking in array creation routines by @dstansby in #3103
• Ignore stale children when reconsolidating metadata by @TomAugspurger in #2980
• Add pytest pin by @dstansby in #3113
• remove fsspec from upstream tests by @d-v-b in #3116
• Fix release note links by @dstansby in #3106
• Use context manager for temporary directories in store tests by @maxrjones in #3110
• Multiple imports for an import name by @DimitriPapadopoulos in #3033
• Improvements to the release guide by @dstansby in #3070
• Multiple imports for an import name by @DimitriPapadopoulos in #3120
• Unused import by @DimitriPapadopoulos in #3121
• Fix zarr.save for given path and multiple args arrays by @brokkoli71 in #3127
• Fix infinite reload loop on latest release notes page by @dstansby in #3129
• Allow Stores to opt out of consolidated metadata. by @paraseba in #3119
• Fix zarr.open default for argument mode when store is read_only by @brokkoli71 in #3128
• Port more stateful test actions from icechunk by @dcherian in #3130
• Support async FSMap objects in zarr.open by @maxrjones in #2774
• Backport PR #3149 on branch 3.0.9 (Add GroupNotFound error to API docs) by @meeseeksmachine in #3179
• Backport PR #3140 on branch 3.0.9 (Suppress FileNotFoundError when deleting keys in the obstore adapter) by @meeseeksmachine in #3180
• Backport PR #3138 on branch 3.0.9 (Add with_read_only() convenience method to store) by @meeseeksmachine in #3181
• Backport PR #3156 on branch 3.0.9 (Create read only copy if needed when opening a store path) by @d-v-b in #3182
• 3.0.9 release notes by @d-v-b in #3183

New Contributors

• @paraseba made their first contribution in #3119
• @meeseeksmachine made their first contribution in #3179

Full Changelog: v3.0.8...v3.0.9

zarr-python 3.0.8

What's Changed

• More consistent store docstrings by @dstansby in #2976
• Improve array and group docstrings by @dstansby in #2975
• 3.0.7 release notes by @d-v-b in #3008
• [v2] Remove print statement from structured dtype metadata parsing by @tasansal in #3007
• hypothesis: Don't generate node name: 'zarr.json' by @dcherian in #3020
• (fix): structured dtype fill value consolidated metadata by @ilan-gold in #3015
• Fix specifying memory order in v2 arrays by @dstansby in #2951
• simplify NDBuffer.as_scalar by @d-v-b in #3027
• Use a dictionary comprehension instead by @DimitriPapadopoulos in #3029
• Pin minimum s3fs (to fix tests) by @dstansby in #3041
• Fix some mypy errors by @dstansby in #3044
• Add more unit tests for GPU buffer by @maxrjones in #2978
• Fix typing errors in testing.stateful by @dstansby in #3045
• (fix): use typesize on Blosc codec by @ilan-gold in #2962
• fix/unbreak chunks initialized by @d-v-b in #2862
• Fix typing in a bunch of store tests by @dstansby in #3052
• Allow no compressor for v2 arrays by @dstansby in #3039
• Avoid memory copy in obstore write by @tomwhite in #2972
• Replace redundant list comprehension with generator by @DimitriPapadopoulos in #3040
• Additional testing for AsyncArray, Array by @brokkoli71 in #3049
• Update pre-commit hooks by @dstansby in #3058
• Don't compress data in hypothesis store testing by @dstansby in #3063
• feat: add print_debug_info function by @ianhi in #2913
• Fix overwrite modes by @dstansby in #3062
• Changelog for 3.0.8 by @dstansby in #3071

Full Changelog: v3.0.7...v3.0.8

v3.0.7

What's Changed

• Modify the link in README.md from V2 to V3 docs by @arkdong in #2915
• update version policy to use effver by @d-v-b in #2910
• obstore-based Store implementation by @kylebarron in #1661
• Avoid memory copy in local store write by @tomwhite in #2944
• Fix fill_value serialization issues by @moradology in #2802
• Clean up warning filters in tests by @dstansby in #2714
• Return scalar when accessing zero dimensional array by @brokkoli71 in #2718
• zarr.array from from an existing zarr.Array by @brokkoli71 in #2622
• Fix hatch matrix setup for minimal and optional dependencies by @maxrjones in #2872
• updated migration documention to say that '.' syntax is no longer all… by @christine-e-smit in #2997
• Fix nan encoding in consolidated metadata by @mpiannucci in #2996
• Use unsigned bytes to back Buffer by @QuLogic in #2738
• fix: Special-case suffix requests in obstore backend to support Azure by @kylebarron in #2994

New Contributors

• @arkdong made their first contribution in #2915
• @kylebarron made their first contribution in #1661
• @christine-e-smit made their first contribution in #2997
• @mpiannucci made their first contribution in #2996

Full Changelog: v3.0.6...v3.0.7

v2.18.7

What's Changed

• Add a test with up to date dependencies & fix zarr-python v2 by @dstansby in #2973

Full Changelog: v2.18.6...v2.18.7

v2.18.6

What's Changed

• Bump actions/setup-python from 5.4.0 to 5.5.0 in the actions group by @dependabot in #2940
• Bump pytest-cov from 6.0.0 to 6.1.1 in the requirements group by @dependabot in #2960
• Pin numcodecs to < 0.16 to fix v2 by @dstansby in #2965
• Add a changelog for 2.18.6 by @dstansby in #2970

Full Changelog: v2.18.5...v2.18.6