v2023.10.0

Highlights

This release brings performance enhancements to reading Zarr datasets, the ability to use numbagg <https://github.com/numbagg/numbagg>_ for reductions, an expansion in API for rolling_exp, fixes two regressions with datetime decoding, and many other bugfixes and improvements. Groupby reductions will also use numbagg if flox>=0.8.1 and numbagg are both installed.

Thanks to our 13 contributors:
Anderson Banihirwe, Bart Schilperoort, Deepak Cherian, Illviljan, Kai Mühlbauer, Mathias Hauser, Maximilian Roos, Michael Niklas, Pieter Eendebak, Simon Høxbro Hansen, Spencer Clark, Tom White, olimcc

What's Changed

• [skip-ci] dev whats-new by @kmuehlbauer in #8232
• initial refactor for NamedArray by @andersy005 in #8075
• Bind T_DuckArray to NamedArray by @Illviljan in #8240
• Fix & normalize typing for chunks by @max-sixty in #8247
• Add type hints to maybe_promote in dtypes.py by @Illviljan in #8243
• Refine chunks=None handling by @max-sixty in #8249
• Add modules to check-untyped by @max-sixty in #8242
• update pytest config and un-xfail some tests by @mathause in #8246
• Accept lambda for other param by @max-sixty in #8256
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #8262
• Update type annotation for center argument of dataaray_plot methods by @eendebakpt in #8261
• Use strict type hinting for namedarray by @Illviljan in #8241
• Add xarray-regrid to ecosystem.rst by @BSchilperoort in #8270
• copy the dtypes module to the namedarray package. by @andersy005 in #8250
• Mandate kwargs on to_zarr by @max-sixty in #8257
• Don't raise rename warning if it is a no operation by @hoxbro in #8266
• Use duck array ops in more places by @tomwhite in #8267
• make more args kw only (except 'dim') by @mathause in #6403
• Allow a function in .sortby method by @max-sixty in #8273
• Fix datetime encoding precision loss regression for units requiring floating point values by @spencerkclark in #8272
• Remove if condition to trigger mypy by @Illviljan in #8280
• Improved typing of align & broadcast by @headtr1ck in #8234
• Add pyright type checker by @Illviljan in #8279
• Ask bug reporters to confirm they're using a recent version of xarray by @max-sixty in #8283
• Fix GroupBy import by @max-sixty in #8286
• Enable .rolling_exp to work on dask arrays by @max-sixty in #8284
• Rename reset_encoding to drop_encoding by @max-sixty in #8287
• mypy 1.6.0 passing by @max-sixty in #8296
• xfail flaky test by @max-sixty in #8299
• Remove real, imag, astype methods from NamedArray by @Illviljan in #8295
• Avoid redundant metadata reads in ZarrArrayWrapper by @olimcc in #8297
• Update labeler.yml to add NamedArray by @dcherian in #8305
• Add min_weight param to rolling_exp functions by @max-sixty in #8285
• Handle numpy missing the array api function astype by @Illviljan in #8315
• Reverse type checks for better type inheritance by @Illviljan in #8313
• Fix typing issues in tests by @Illviljan in #8312
• Remove a couple of trailing commas in tests by @max-sixty in #8321
• Remove redundant check in IndexVariable by @Illviljan in #8320
• Move Variable aggregations to NamedArray by @dcherian in #8304
• Refine curvefit doctest by @max-sixty in #8328
• Use shape and dtype as typevars in NamedArray by @Illviljan in #8294
• Enable numbagg for reductions by @dcherian in #8316
• Remove np.asarray in formatting.py by @dcherian in #8100
• fix regression in time-like check when decoding masked data by @kmuehlbauer in #8277
• Add docs to reindex_like re broadcasting by @max-sixty in #8327
• Add corr, cov, std & var to .rolling_exp by @max-sixty in #8307
• Request to adjust pyright config by @max-sixty in #8329
• Docs: Add syntax for registering backends in pyproject.toml by @ZedThree in #8331
• internal: Improve version handling for numbagg by @max-sixty in #8325
• Whats-new: 2023.10.0 by @dcherian in #8334

New Contributors

• @eendebakpt made their first contribution in #8261
• @BSchilperoort made their first contribution in #8270
• @hoxbro made their first contribution in #8266
• @olimcc made their first contribution in #8297

Full Changelog: v2023.09.0...v2023.10.0