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release notes for the pre-release #6676

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merged 8 commits into from
Jun 9, 2022
Merged

release notes for the pre-release #6676

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156f08f
add a section for the release candidate
keewis Jun 8, 2022
e49b5dc
add the known regressions
keewis Jun 8, 2022
d264b93
add a small summary of the most notable changes.
keewis Jun 8, 2022
1bb718e
pynio
keewis Jun 8, 2022
ff911af
Merge branch 'main' into rc-notes
keewis Jun 8, 2022
d853268
rephrase [skip-ci]
keewis Jun 8, 2022
67b3a15
whats-new.rst fixes [skip-ci]
keewis Jun 9, 2022
e555258
rephrase and remove the mention of `numpy-groupies`
keewis Jun 9, 2022
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40 changes: 24 additions & 16 deletions doc/whats-new.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -14,19 +14,27 @@ What's New

np.random.seed(123456)

.. _whats-new.2022.03.1:
.. _whats-new.2022.06.0rc0:

v2022.03.1 (unreleased)
-----------------------
v2022.06.0rc0 (unreleased)
--------------------------

This pre-release brings a number of bug fixes and improvements, most notably a major internal
refactor of the indexing functionality and the `flox`_ in ``groupby`` operations. It also stops
testing support for the abandoned PyNIO.

Known Regressions
-----------------
- `reset_coords(drop=True)` does not create indexes (:issue:`6607`)

New Features
~~~~~~~~~~~~

- The `zarr` backend is now able to read NCZarr.
By `Mattia Almansi <https://github.com/malmans2>`_.
- Add a weighted ``quantile`` method to :py:class:`~core.weighted.DatasetWeighted` and
:py:class:`~core.weighted.DataArrayWeighted` (:pull:`6059`). By
`Christian Jauvin <https://github.com/cjauvin>`_ and `David Huard <https://github.com/huard>`_.
:py:class:`~core.weighted.DataArrayWeighted` (:pull:`6059`).
By `Christian Jauvin <https://github.com/cjauvin>`_ and `David Huard <https://github.com/huard>`_.
- Add a ``create_index=True`` parameter to :py:meth:`Dataset.stack` and
:py:meth:`DataArray.stack` so that the creation of multi-indexes is optional
(:pull:`5692`).
Expand All @@ -41,8 +49,8 @@ New Features
- Allow passing chunks in ``**kwargs`` form to :py:meth:`Dataset.chunk`, :py:meth:`DataArray.chunk`, and
:py:meth:`Variable.chunk`. (:pull:`6471`)
By `Tom Nicholas <https://github.com/TomNicholas>`_.
- Expose `inline_array` kwarg from `dask.array.from_array` in :py:func:`open_dataset`, :py:meth:`Dataset.chunk`,
:py:meth:`DataArray.chunk`, and :py:meth:`Variable.chunk`. (:pull:`6471`)
- Expose the ``inline_array`` kwarg from :py:func:`dask.array.from_array` in :py:func:`open_dataset`,
:py:meth:`Dataset.chunk`, :py:meth:`DataArray.chunk`, and :py:meth:`Variable.chunk`. (:pull:`6471`)
By `Tom Nicholas <https://github.com/TomNicholas>`_.
- :py:meth:`xr.polyval` now supports :py:class:`Dataset` and :py:class:`DataArray` args of any shape,
is faster and requires less memory. (:pull:`6548`)
Expand Down Expand Up @@ -108,7 +116,8 @@ Bug fixes
coordinates. See the corresponding pull-request on GitHub for more details. (:pull:`5692`).
By `Benoît Bovy <https://github.com/benbovy>`_.
- Fixed "unhashable type" error trying to read NetCDF file with variable having its 'units'
attribute not ``str`` (e.g. ``numpy.ndarray``) (:issue:`6368`). By `Oleh Khoma <https://github.com/okhoma>`_.
attribute not ``str`` (e.g. ``numpy.ndarray``) (:issue:`6368`).
By `Oleh Khoma <https://github.com/okhoma>`_.
- Omit warning about specified dask chunks separating chunks on disk when the
underlying array is empty (e.g., because of an empty dimension) (:issue:`6401`).
By `Joseph K Aicher <https://github.com/jaicher>`_.
Expand All @@ -124,18 +133,18 @@ Bug fixes
- Allow passing both ``other`` and ``drop=True`` arguments to ``xr.DataArray.where``
and ``xr.Dataset.where`` (:pull:`6466`, :pull:`6467`).
By `Michael Delgado <https://github.com/delgadom>`_.
- Ensure dtype encoding attributes are not added or modified on variables that
contain datetime-like values prior to being passed to
:py:func:`xarray.conventions.decode_cf_variable` (:issue:`6453`,
:pull:`6489`). By `Spencer Clark <https://github.com/spencerkclark>`_.
- Ensure dtype encoding attributes are not added or modified on variables that contain datetime-like
values prior to being passed to :py:func:`xarray.conventions.decode_cf_variable` (:issue:`6453`,
:pull:`6489`).
By `Spencer Clark <https://github.com/spencerkclark>`_.
- Dark themes are now properly detected in Furo-themed Sphinx documents (:issue:`6500`, :pull:`6501`).
By `Kevin Paul <https://github.com/kmpaul>`_.
- :py:meth:`isel` with `drop=True` works as intended with scalar :py:class:`DataArray` indexers.
(:issue:`6554`, :pull:`6579`)
By `Michael Niklas <https://github.com/headtr1ck>`_.
- Fixed silent overflow issue when decoding times encoded with 32-bit and below
unsigned integer data types (:issue:`6589`, :pull:`6598`). By `Spencer Clark
<https://github.com/spencerkclark>`_.
unsigned integer data types (:issue:`6589`, :pull:`6598`).
By `Spencer Clark <https://github.com/spencerkclark>`_.

Documentation
~~~~~~~~~~~~~
Expand All @@ -157,8 +166,7 @@ Performance
- Substantially improved GroupBy operations using `flox <https://flox.readthedocs.io/en/latest/>`_.
This is auto-enabled when ``flox`` is installed. Use ``xr.set_options(use_flox=False)`` to use
the old algorithm. (:issue:`4473`, :issue:`4498`, :issue:`659`, :issue:`2237`, :pull:`271`).
By `Deepak Cherian <https://github.com/dcherian>`_,`Anderson Banihirwe <https://github.com/andersy005>`_,
`Jimmy Westling <https://github.com/illviljan>`_.
By `Deepak Cherian <https://github.com/dcherian>`_, `Anderson Banihirwe <https://github.com/andersy005>`_, `Jimmy Westling <https://github.com/illviljan>`_.

Internal Changes
~~~~~~~~~~~~~~~~
Expand Down