v3.3.0

What's Changed

• Allow s3 testing in face of ambient AWS credentials by @chuckwondo in #3947
• ci: run all of xarray's tests in downstream workflow by @maxrjones in #3940
• chore(deps): bump the actions group across 1 directory with 12 updates by @dependabot[bot] in #3930
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3943
• chore(zarr-metadata): bump version to 0.1.1 by @d-v-b in #3949
• refactor: simplify internal chunk representation by @d-v-b in #3899
• Fix V3 time types by @chuckwondo in #3955
• chore: fix ability to run mypy via hatch by @chuckwondo in #3952
• Fix minor typos by @kabilar in #3957
• chore(deps): bump the actions group with 5 updates by @dependabot[bot] in #3951
• deprecate blosc enums by @d-v-b in #3963
• BUG: Fix empty Group nodes lacking a "consolidated_metadata" field by @TomAugspurger in #3967
• fix(zarr-metadata): model stored metadata more closely by @d-v-b in #3962
• fix: allow writing to 0-dimensional arrays with sharding by @NIK-TIGER-BILL in #3966
• chore(deps): bump the actions group with 2 updates by @dependabot[bot] in #3970
• chore: run mypy from developer environment by @d-v-b in #3972
• feat:get_ranges by @d-v-b in #3925
• chore: remove warning on fixed length utf32 by @d-v-b in #3979
• misc(zarr-metadata): typed constants and fixes by @d-v-b in #3978
• chore: cd workflow by @d-v-b in #3935
• perf: cache default ArraySpec for regular chunk grids by @d-v-b in #3908
• refactor(sharding): store chunks_per_shard explicitly in _ShardIndex by @d-v-b in #3975
• docs: update link to developer chat by @d-v-b in #3980
• feat(zarr-metadata): partial metadata types by @d-v-b in #3982
• chore(zarr-metadata): set up a changelog by @d-v-b in #3981
• Optimize partial shard reads by @aldenks in #3004
• Do not install CuPy on darwin by @chuckwondo in #3988
• chore(zarr-metadata): prepare for 0.2.0 release by @d-v-b in #3986
• Widen ChunksLike type alias by @chuckwondo in #3990
• fix: match v* when extracting a zarr version from git tags by @d-v-b in #3994
• feat: subchunk write order by @ilan-gold in #3826
• prune old string dtype class by @d-v-b in #3973
• fix: compare metadata objects by JSON form by @d-v-b in #3999
• Run doctests via pytest and fix broken doctests. by @chuckwondo in #4000
• fix(FsspecStore): close owned async filesystem on store.close() by @josh-ag2 in #4003
• chore(deps): bump the actions group across 1 directory with 8 updates by @dependabot[bot] in #4014
• fix: use hatch's default env so the uv installer is inherited by @lhoupert in #4023
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #4024
• docs: test more code snippets in docs by @d-v-b in #4018
• chore(deps-dev): bump uv from 0.11.14 to 0.11.15 in the uv group across 1 directory by @dependabot[bot] in #4019
• refactor: remove random subchunk ordering by @d-v-b in #4011
• fix: make xarray downstream tests work by @d-v-b in #4043
• test: add property tests for block and mask indexing by @maxrjones in #4054
• refactor: use backported sentinel type by @d-v-b in #4046
• chore(deps): bump aiohttp from 3.13.5 to 3.14.0 in the uv group across 1 directory by @dependabot[bot] in #4031
• Revert "fix: make xarray downstream tests work" by @d-v-b in #4047
• chore: indexing test cleanup by @d-v-b in #4001
• refactor/consolidated JSON IO routines by @d-v-b in #3998
• chore(deps): bump the actions group with 3 updates by @dependabot[bot] in #4058
• Modify custom dtype example to use only public API by @chuckwondo in #4052
• fix: copy attributes passed from the user to avoid mutation by @stibrew in #4060
• docs: add core-developer self-merge policy by @maxrjones in #4053
• fix![zarr-metadata]: define JSONValue type, and narrow object annotations to use JSONValue by @d-v-b in #4037
• perf: cache lexicographic chunk coords in sharding codec by @d-v-b in #4012
• deprecate more enums by @d-v-b in #3968
• fix: update OSPO action references to canonical org path by @zkoppert in #3856
• chore(deps): bump tornado from 6.5.5 to 6.5.6 in the uv group across 1 directory by @dependabot[bot] in #4062
• harden developer environment by @d-v-b in #4066
• chore(deps): bump codecov/codecov-action from 6.0.1 to 7.0.0 in the actions group by @dependabot[bot] in #4071
• chore(deps): bump the python-dependencies group with 14 updates by @dependabot[bot] in #4072
• chore(deps): bump tornado from 6.5.6 to 6.5.7 by @dependabot[bot] in #4067
• chore(deps): bump cryptography from 48.0.0 to 48.0.1 by @dependabot[bot] in #4070
• chore(deps): bump aiohttp from 3.14.0 to 3.14.1 by @dependabot[bot] in #4069
• Claude/storage codec bugfixes by @d-v-b in #4074
• chore(deps): bump bleach from 6.3.0 to 6.4.0 by @dependabot[bot] in #4081
• Control sharding codec read coalescing with ArrayConfig and runtime config options by @aldenks in #3987
• chore(deps-dev): bump the python-dependencies group across 1 directory with 2 updates by @dependabot[bot] in #4080
• allow roundtripping the BytesCodec by @keewis in #3417
• feat![zarr-metadata]: extensive top-level exports by @d-v-b in #4083
• zarr metadata 0.3.0 by @d-v-b in #4084
• Claude/py312 modernizations by @d-v-b in #4087
• chore(deps): bump CodSpeedHQ/action from 4.17.0 to 4.17.5 in the actions group by @dependabot[bot] in #4079
• chore: add rectilinear hypothesis block indexing tests by @maxrjones in #4075
• chore(deps): bump pydantic-settings from 2.14.1 to 2.14.2 by @dependabot[bot] in #4089
• chore: dependabot only updates direct dependencies by @d-v-b in #4090
• chore(deps): bump msgpack from 1.1.2 to 1.2.1 by @dependabot[bot] in #4088
• test: pytest cleanups / modernization by @d-v-b in #4093
• fix(testing): correct delete_dir prefix matching in stateful tests by @NIK-TIGER-BILL in #4002
• chore(deps): bump the actions group with 3 updates by @dependabot[bot] in #4097
• Remove struct unstable warning by @d-v-b in https://github.com/zarr-developers/z...

v3.2.1

What's Changed

• feat:metadata package by @d-v-b in #3919
• fix: CastValue wrap validation bug by @d-v-b in #3938
• fix: use contextual arrayspec when validating / evolving codecs by @d-v-b in #3941
• fix: defer to fsspec for memory url scheme by @d-v-b in #3944
• release : 3.2.1 release notes by @d-v-b in #3942

Full Changelog: v3.2.0...v3.2.1

v3.2.0

What's Changed

• Rename the DimensionNames type to DimensionNamesLike. by @d-v-b in #3800
• docs: remove incorrect redirect by @maxrjones in #3801
• fix: handle special uint32 arrays on Windows correctly by @radoering in #3797
• add release trigger that takes a tag as input by @d-v-b in #3821
• Removes testpypi as a target for the workflow-dispatch-triggered release workflow. by @d-v-b in #3822
• perf: full shard write fast path by @slevang in #3793
• Revert the changes applied in #3821 + #3822 by @d-v-b in #3825
• Fix needs_release_notes.yml workflow by @d-v-b in #3824
• feat: return a useful value from CodecPipeline.read() by @d-v-b in #3828
• docs: fix the docstring for CodecPipeline.write by @d-v-b in #3836
• Improve layout of work in progress page by @dstansby in #3841
• perf: oindex optimization by @slevang in #3830
• chore: spec0 compat (python 3.14 compat, python 3.12 min) by @ilan-gold in #3564
• fix: remove numcodecs off-spec warning by @slevang in #3833
• DOC: remove result="ansi" causing empty code blocks in user guide by @nuglifeleoji in #3845
• chore: use coverage run instead of pytest --cov by @maxrjones in #3847
• DOC: document init_group removal in v3 migration guide by @nuglifeleoji in #3851
• perf/chunktransform by @d-v-b in #3722
• Fill missing chunks by @williamsnell in #3748
• fix: numpy default NaT handling by @ilan-gold in #3863
• DOC: document threading.max_workers config option by @nuglifeleoji in #3852
• chore: add zizmor to repo checks by @d-v-b in #3837
• fix: convert zarr Array to numpy before setitem async dispatch by @nuglifeleoji in #3857
• fix: auto-open ZipStore in list(), list_dir() and exists() by @nuglifeleoji in #3855
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3876
• chore: fix release workflow triggers by @maxrjones in #3794
• Revert "chore: update pre-commit hooks" by @maxrjones in #3877
• chore: fix typos by @DimitriPapadopoulos in #3844
• Update TEAM.md by @maxrjones in #3879
• chore: separate benchmarks into a distinct CI job by @maxrjones in #3873
• feat: add experimental support for rectilinear (variable-sized) chunks by @maxrjones in #3802
• chore: pin mkdocs<2 by @maxrjones in #3881
• chore: add a CI workflow that identifies unlinked types by @maxrjones in #3882
• chore: prefix registry variable names with a single underscore by @d-v-b in #3894
• chore: update failure conditions for docs workflow by @maxrjones in #3887
• fix: simplify and fix codspeed workflow by @d-v-b in #3895
• chore: remove deprecated convenience and creation modules by @d-v-b in #3900
• chore: remove .create methods from arrays by @d-v-b in #3903
• chore: clean up metadata tests by @d-v-b in #3897
• chore: expunge deprecated zarr_version parameter by @d-v-b in #3901
• TESTS: don't force rectilinear config true in the test by @ianhi in #3909
• chore: remove deprecated group methods by @d-v-b in #3902
• feat/memory store registry by @d-v-b in #3679
• Implement support for structured and struct zarr-extension defined dtypes by @BrianMichell in #3781
• fix: make upstream tests pass by @d-v-b in #3920
• docs: add experimental API policy to contributing guide by @nuglifeleoji in #3853
• fix: apply path normalization to fsspec store by @d-v-b in #3924
• Use f-strings by @DimitriPapadopoulos in #3928
• fix(storage): preserve leading slashes in FsspecStore.path by @d-v-b in #3926
• feat: add cast_value and scale_offset codecs by @d-v-b in #3874
• chore: automate more of the release process by @maxrjones in #3896
• chore/3.2.0 release notes by @d-v-b in #3927
• docs: build 3.2.0 release notes by @d-v-b in #3932

New Contributors

• @radoering made their first contribution in #3797
• @slevang made their first contribution in #3793
• @nuglifeleoji made their first contribution in #3845
• @williamsnell made their first contribution in #3748

Full Changelog: v3.1.6...v3.2.0

v3.2.0rc1

What's Changed

• Rename the DimensionNames type to DimensionNamesLike. by @d-v-b in #3800
• docs: remove incorrect redirect by @maxrjones in #3801
• fix: handle special uint32 arrays on Windows correctly by @radoering in #3797
• add release trigger that takes a tag as input by @d-v-b in #3821
• Removes testpypi as a target for the workflow-dispatch-triggered release workflow. by @d-v-b in #3822
• perf: full shard write fast path by @slevang in #3793
• Revert the changes applied in #3821 + #3822 by @d-v-b in #3825
• Fix needs_release_notes.yml workflow by @d-v-b in #3824
• feat: return a useful value from CodecPipeline.read() by @d-v-b in #3828
• docs: fix the docstring for CodecPipeline.write by @d-v-b in #3836
• Improve layout of work in progress page by @dstansby in #3841
• perf: oindex optimization by @slevang in #3830
• chore: spec0 compat (python 3.14 compat, python 3.12 min) by @ilan-gold in #3564
• fix: remove numcodecs off-spec warning by @slevang in #3833
• DOC: remove result="ansi" causing empty code blocks in user guide by @nuglifeleoji in #3845
• chore: use coverage run instead of pytest --cov by @maxrjones in #3847
• DOC: document init_group removal in v3 migration guide by @nuglifeleoji in #3851
• perf/chunktransform by @d-v-b in #3722
• Fill missing chunks by @williamsnell in #3748
• fix: numpy default NaT handling by @ilan-gold in #3863
• DOC: document threading.max_workers config option by @nuglifeleoji in #3852
• chore: add zizmor to repo checks by @d-v-b in #3837
• fix: convert zarr Array to numpy before setitem async dispatch by @nuglifeleoji in #3857
• fix: auto-open ZipStore in list(), list_dir() and exists() by @nuglifeleoji in #3855
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3876
• chore: fix release workflow triggers by @maxrjones in #3794
• Revert "chore: update pre-commit hooks" by @maxrjones in #3877
• chore: fix typos by @DimitriPapadopoulos in #3844
• Update TEAM.md by @maxrjones in #3879
• chore: separate benchmarks into a distinct CI job by @maxrjones in #3873
• feat: add experimental support for rectilinear (variable-sized) chunks by @maxrjones in #3802
• chore: pin mkdocs<2 by @maxrjones in #3881
• chore: add a CI workflow that identifies unlinked types by @maxrjones in #3882
• chore: prefix registry variable names with a single underscore by @d-v-b in #3894
• chore: update failure conditions for docs workflow by @maxrjones in #3887
• fix: simplify and fix codspeed workflow by @d-v-b in #3895
• chore: remove deprecated convenience and creation modules by @d-v-b in #3900
• chore: remove .create methods from arrays by @d-v-b in #3903
• chore: clean up metadata tests by @d-v-b in #3897
• chore: expunge deprecated zarr_version parameter by @d-v-b in #3901
• TESTS: don't force rectilinear config true in the test by @ianhi in #3909
• chore: remove deprecated group methods by @d-v-b in #3902
• feat/memory store registry by @d-v-b in #3679
• Implement support for structured and struct zarr-extension defined dtypes by @BrianMichell in #3781
• fix: make upstream tests pass by @d-v-b in #3920
• docs: add experimental API policy to contributing guide by @nuglifeleoji in #3853
• fix: apply path normalization to fsspec store by @d-v-b in #3924
• Use f-strings by @DimitriPapadopoulos in #3928
• fix(storage): preserve leading slashes in FsspecStore.path by @d-v-b in #3926
• feat: add cast_value and scale_offset codecs by @d-v-b in #3874
• chore: automate more of the release process by @maxrjones in #3896
• chore/3.2.0 release notes by @d-v-b in #3927
• docs: build 3.2.0 release notes by @d-v-b in #3932

New Contributors

• @radoering made their first contribution in #3797
• @slevang made their first contribution in #3793
• @nuglifeleoji made their first contribution in #3845
• @williamsnell made their first contribution in #3748

Full Changelog: v3.1.6...v3.2.0rc1

v3.1.6

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

What's Changed

• Bump the actions group with 2 updates by @dependabot[bot] in #3600
• fix: clearer description of array.target_shard_size_bytes by @ilan-gold in #3599
• chore/pin pytest asyncio by @d-v-b in #3606
• fix tests for stand-alone example scripts by @d-v-b in #3605
• fix: auto-chunking when auto-sharding 1MiB number by @ilan-gold in #3603
• Some minor linter \ type-hint fixes for my own sanity by @xaviernogueira in #3623
• remove pytest pin by @d-v-b in #3619
• use the result of the broadcasted array to check the contents by @hmaarrfk in #3629
• docs: Correct grammar issues in a/an usage by @star1327p in #3634
• Bump the actions group across 1 directory with 5 updates by @dependabot[bot] in #3630
• ci: align pre-commit Python with tooling config by @ramanbansal1 in #3633
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3610
• adjust docstrings for _iter_shard methods / functions by @melonora in #3615
• Add experimental section to the API docs by @maxrjones in #3642
• Add instructions to contributing guide about executable docs by @maxrjones in #3645
• Fix deprecation of setting shape on a numpy array in 2.5+ by @mscheltienne in #3648
• Bump astral-sh/setup-uv from 7.1.6 to 7.2.0 in the actions group by @dependabot[bot] in #3646
• Set copy=False in reshape operation by @mscheltienne in #3649
• Bump mimimum supported version of numpy by @dstansby in #3636
• add benchmarks using pytest-benchmark and codspeed by @d-v-b in #3562
• Simplify testing of different numpy versions by @dstansby in #3654
• Clean up test extra dependencies by @dstansby in #3656
• docs: Correct some typos in documentation by @star1327p in #3661
• Bump actions/checkout from 5 to 6 in the actions group by @dependabot[bot] in #3659
• chore/use prek by @d-v-b in #3658
• Add benchmarks for sharded + local store indexing by @aldenks in #3663
• Add methods for getting bytes + json to store abc by @d-v-b in #3638
• Bump astral-sh/setup-uv from 5 to 7 in the actions group by @dependabot[bot] in #3669
• only run codspeed benchmarks on PRs labelled 'benchmark' by @d-v-b in #3673
• Improve the usability of array runtime config by @d-v-b in #3668
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3689
• Fix HTML syntax errors in README.md table by @DimitriPapadopoulos in #3694
• Fix grammar, typos, and clarity issues in documentation by @DimitriPapadopoulos in #3693
• fix: raise error when encountering nullable string dtype by @flying-sheep in #3695
• lift async array methods to stand-alone functions by @d-v-b in #3676
• don't use depdendabot for the support/v2 branch by @d-v-b in #3701
• Support with read only in wrappers by @BorisTheBrave in #3700
• perf:improve performance of morton order iter by @d-v-b in #3705
• allow numpy ints in shapelike by @d-v-b in #3706
• 🐛 Fix obstore listdir method using _relativize_path by @antoinegaston in #3657
• perf:remove isinstance check by @d-v-b in #3704
• Skip chunk coordinate enumeration in resize when array is only growing (#3650) by @jakenotjay in #3702
• perf:Add additional sharding benchmarks by @mkitti in #3712
• perf: Optimize Morton order with hypercube and vectorization by @mkitti in #3708
• fix/nested shard reads by @d-v-b in #3655
• perf: Vectorize get_chunk_slice for faster sharded writes by @mkitti in #3713
• TEST: fix group selection for delete by @ianhi in #3707
• Add non-power-of-2 shapes for Morton coding to benchmarks by @mkitti in #3717
• perf: Fix near-miss penalty in _morton_order with hybrid ceiling+argsort strategy by @mkitti in #3718
• chore/update hatch + use dependency groups by @d-v-b in #3728
• perf: add sync methods to codecs by @d-v-b in #3721
• fix: implement separate cache for byte-range-requests by @d-v-b in #3710
• chore: update ruff and fix new ruff issues by @DimitriPapadopoulos in #3739
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3738
• Use the prek GitHub Action by @DimitriPapadopoulos in #3745
• Limit privilege escalation and token theft in workflows by @DimitriPapadopoulos in #3742
• chore: no need to check reST files by @DimitriPapadopoulos in #3743
• chore: Pre-commit hook for multi-character lstrip/rstrip by @maxrjones in #3756
• docs: use dark text color on light mode search bar by @maxrjones in #3760
• docs: add example of creating uncompressed arrays (#3464) by @abishop1990 in #3752
• fix: BaseFloat._check_scalar rejects invalid string values (#3586) by @abishop1990 in #3762
• docs: fix docstring for Array.cdata_shape by @maxrjones in #3768
• fix: apply drop_axes squeeze in partial decode path for sharding (#3691) by @abishop1990 in #3763
• docs: add favicon by @maxrjones in #3775
• fix: validate that dask-style chunks have regular shapes by @maxrjones in #3779
• docs: add glossary by @maxrjones in #3767
• docs: fix search color by @maxrjones in #3777
• perf/store sync by @d-v-b in #3725
• Remove rich as required for tree() by @ianhi in #3778
• chore: less frequent codspeed runs by @maxrjones in #3784
• Add missing slash character to towncrier issue format by @d-v-b in #3788
• doc: add ai use policy to contributing guide by @jhamman in #3769
• chore/towncrier header by @d-v-b in #3789
• chore: Use OIDC for publishing by @maxrjones in #3791
• chore/3.1.6 release notes by @d-v-b in #3790

New Contributors

• @xaviernogueira made their first contribution in #3623
• @hmaarrfk made their first contribution in #3629
• @ramanbansal1 made their first contribution in #3633
• @melonora made their first contribution in #3615
• @mscheltienne made their first contribution in #3648
• @flying-sheep made their first contribution in #3695
• @BorisTheBrave made their first contribution in https://github.com/zarr-...

v3.1.5

What's Changed

• 3.1.4, not pi by @d-v-b in #3594
• 3.1.5 release notes by @d-v-b in #3598

Full Changelog: 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

• 3.1.3 release notes (#3472) by @d-v-b in #3474
• Add sharding to multiprocessing test by @ziw-liu in #3475
• Use mkdocs-material for Zarr-Python documentation by @maxrjones in #3118
• Changelog entry for docs change by @maxrjones in #3476
• chore: update pre-commit hooks by @DimitriPapadopoulos in #3481
• Customize color theme for docs by @maxrjones in #3477
• Document StoreLike values in user guide by @K-Meech in #3480
• Include shard/chunk shapes in size mismatch error by @dstansby in #3485
• fix pcodec resolution failure by @d-v-b in #3483
• Fix string integer parsing by @ianhi in #3489
• add experimental module by @d-v-b in #3490
• CacheStore containing source store and cache store by @ruaridhg in #3366
• Make ObjectStore a generic class by @dstansby in #3486
• Fix typing in store tests by @dstansby in #3394
• chore/doctests by @d-v-b in #3500
• docs/examples by @d-v-b in #3502
• Imported name is not used anywhere in the module by @DimitriPapadopoulos in #3300
• chore(crc32c): replace crc32c with google-crc32c dependency by @jhamman in #3515
• feature: update default config setting for async.concurrency from 10->64 by @jhamman in #3526
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3509
• Document changes to async.concurrency defaults and performance considerations. by @jhamman in #3528
• Bump the actions group with 2 updates by @dependabot[bot] in #3507
• don't serialize consolidated metadata if it's None by @d-v-b in #3535
• DOC: a array -> an array by @star1327p in #3537
• Fix: allow "bytes" as an alias for "variable_length_bytes" by @d-v-b in #3532
• fix: accept extra fields in array metadata by @d-v-b in #3530
• fsspec path handling by @fjansson in #3343
• Doc update by @christine-e-smit in #3539
• Fix 404 page by @maxrjones in #3543
• fix invalid blosc defaults by @d-v-b in #3545
• Bump the actions group with 3 updates by @dependabot[bot] in #3549
• fix for failing numcodecs.zarr3 codecs by @terraputix in #3326
• fix/simpler blosc tuning by @d-v-b in #3553
• remove dead code by @d-v-b in #3555
• optimize shard writing by @nbren12 in #3561
• chore: make tests faster by @d-v-b in #3533
• chore: update pre-commit hooks by @pre-commit-ci[bot] in #3566
• Improve compatibility between old sphinx and new mkdocs setup by @maxrjones in #3544
• Add an issue template for feature requests by @dstansby in #3572
• DOC: Correct typos in zarr-python documentation by @star1327p in #3579
• Update MemoryStore.get signature to match other stores by @keller-mark in #3581
• concurrency limit 64 -> 10 by @d-v-b in #3578
• feat: bounded size auto sharding via zarr.config by @ilan-gold in #3574
• feat: make async_array public by @ilan-gold in #3556
• Improve store section in migration guide by @dstansby in #3552
• Parametrize Array with v2/v3 metadata by @dstansby in #3304
• Reduce number of documentation redirects needed by @maxrjones in #3584
• update imports in docs by @d-v-b in #3591
• 3.1.4 release notes by @d-v-b in #3540

New Contributors

• @fjansson made their first contribution in #3343
• @terraputix made their first contribution in #3326
• @nbren12 made their first contribution in #3561
• @keller-mark made their first contribution in #3581

Full Changelog: v3.1.3...v3.1.4

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