- update to version 2023.02.0:
 - This release brings a major upgrade to :py:func:`xarray.concat`, many bug fixes,:
 - and a bump in supported dependency versions. Thanks to our 11 contributors:
 - Aron Gergely, Deepak Cherian, Illviljan, James Bourbeau, Joe Hamman,:
 - Justus Magin, Hauke Schulz, Kai Mühlbauer, Ken Mankoff, Spencer Clark, Tom Nicholas.:
 - Breaking changes:
  - Support for ``python 3.8`` has been dropped and the minimum versions of some
    dependencies were changed (:pull:`7461`):
    ===================== =========  ========
     Package                    Old      New
    ===================== =========  ========
     python                     3.8      3.9
     numpy                     1.20     1.21
     pandas                     1.3      1.4
     dask                   2021.11   2022.1
     distributed            2021.11   2022.1
     h5netcdf                  0.11     0.13
     lxml                       4.6      4.7
     numba                      5.4      5.5
    ===================== =========  ========
 - Deprecations:
  - Following pandas, the `closed` parameters of :py:func:`cftime_range` and
    :py:func:`date_range` are deprecated in favor of the `inclusive` parameters,
    and will be removed in a future version of xarray (:issue:`6985`:,
    :pull:`7373`).
 - Bug fixes:
  - :py:func:`xarray.concat` can now concatenate variables present in some datasets but
    not others (:issue:`508`, :pull:`7400`).
  - Handle ``keep_attrs`` option in binary operators of :py:meth:`Dataset` (:issue:`7390`, :pull:`7391`).
  - Improve error message when using dask in :py:func:`apply_ufunc` with ``output_sizes`` not supplied. (:pull:`7509`)
  - :py:func:`xarray.Dataset.to_zarr` now drops variable encodings that have been added by xarray during reading
    a dataset. (:issue:`7129`, :pull:`7500`).
 - Documentation:
  - Mention the `flox package <https://flox.readthedocs.io>`_ in GroupBy documentation and docstrings.
- update to version 2023.01.0:
 - This release includes a number of bug fixes. Thanks to the 14 contributors to this release:
 - Aron Gergely, Benoit Bovy, Deepak Cherian, Ian Carroll, Illviljan, Joe Hamman, Justus Magin, Mark Harfouche,:
 - Matthew Roeschke, Paige Martin, Pierre, Sam Levang, Tom White,  stefank0.:
 - Breaking changes:
  - :py:meth:`CFTimeIndex.get_loc` has removed the ``method`` and ``tolerance`` keyword arguments.
    Use ``.get_indexer([key], method=..., tolerance=...)`` instead (:pull:`7361`).
 - Bug fixes:
  - Avoid in-memory broadcasting when converting to a dask dataframe
    using ``.to_dask_dataframe.`` (:issue:`6811`, :pull:`7472`).
  - Accessing the property ``.nbytes`` of a DataArray, or Variable no longer
    accidentally triggers loading the variable into memory.
  - Allow numpy-only objects in :py:func:`where` when ``keep_attrs=True`` (:issue:`7362`, :pull:`7364`).
  - add a ``keep_attrs`` parameter to :py:meth:`Dataset.pad`, :py:meth:`DataArray.pad`,
    and :py:meth:`Variable.pad` (:pull:`7267`).
  - Fixed performance regression in alignment between indexed and non-indexed objects
    of the same shape (:pull:`7382`).
  - Preserve original dtype on accessing MultiIndex levels (:issue:`7250`,
    :pull:`7393`).
 - Internal Changes:
  - Add the pre-commit hook `absolufy-imports` to convert relative xarray imports to
    absolute imports (:pull:`7204`, :pull:`7370`).

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