v2023.06.0

This release adds features to curvefit, improves the performance of concatenation, and fixes various bugs.

Thank to our 13 contributors to this release:
Anderson Banihirwe, Deepak Cherian, Illviljan, Juniper Tyree, Justus Magin, Martin Fleischmann,
Mattia Almansi, mgunyho, Negin Sobhani, Rutger van Haasteren, Tom Nicholas, Tom White.

What's Changed

• Array API fixes for astype by @TomNicholas in #7847
• Add type hints to test_dtypes by @Illviljan in #7858
• Bump codecov/codecov-action from 3.1.3 to 3.1.4 by @dependabot in #7859
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #7864
• Upload nightly wheels to scientific-python-nightly-wheels by @martinfleis in #7865
• adapt the pint + dask test to the newest version of pint by @keewis in #7855
• Avoid explicit loop when updating OrderedSet by @Illviljan in #7857
• Improve to_dask_dataframe performance by @Illviljan in #7844
• Changed duck typing exception to: (ImportError, AttributeError) by @vhaasteren in #7874
• defer to numpy for the expected result by @keewis in #7875
• add numba to the py3.11 environment by @keewis in #7867
• deprecate the cdms2 conversion methods by @keewis in #7876
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #7882
• Implement multidimensional initial guess and bounds for curvefit by @mgunyho in #7821
• move to setup-micromamba by @keewis in #7878
• Improve concat performance by @Illviljan in #7824
• retire the TestPyPI workflow by @keewis in #7889
• Fix .groupby(multi index level) by @dcherian in #7830
• don't use CacheFileManager.__del__ on interpreter shutdown by @keewis in #7880
• fix polyfit changing the original object by @malmans2 in #7900
• Fix flaky doctest for curvefit by @mgunyho in #7893
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #7912
• Ensure dtype of reindex result matches dtype of the original DataArray by @andersy005 in #7917
• Add errors option to curvefit by @mgunyho in #7891
• CF encoding should preserve vlen dtype for empty arrays by @tomwhite in #7862
• use trusted publishers instead of a API token by @keewis in #7899
• Add cfgrib,ipywidgets to doc env by @dcherian in #7888
• Update calendar for developers meeting by @shoyer in #7933
• Fix regression with grouper object on an IndexVariable by @mwtoews in #7920
• Release summary for v2023.06.0 by @TomNicholas in #7934
• Fix check for chunk_store in zarr backend by @juntyr in #7923
• fixing rolling_window issue with cupy by @negin513 in #7938

New Contributors

• @martinfleis made their first contribution in #7865
• @vhaasteren made their first contribution in #7874
• @juntyr made their first contribution in #7923
• @negin513 made their first contribution in #7938

Full Changelog: v2023.05.0...v2023.06.0