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- Update to 2024.3.0
  ## New Features
  * Partial writes to existing chunks with region or append_dim
    will now raise an error (unless safe_chunks=False); previously
    an error would only be raised on new variables. (PR8459,
    GH8371, GH8882) By Maximilian Roos.
  * Grouped and resampling quantile calculations now use the
    vectorized algorithm in flox>=0.9.4 if present. By Deepak
    Cherian.
  * Do not broadcast in arithmetic operations when global option
    arithmetic_broadcast=False (GH6806, PR8784). By Etienne Schalk
    and Deepak Cherian.
  * Add the .oindex property to Explicitly Indexed Arrays for
    orthogonal indexing functionality. (GH8238, PR8750) By Anderson
    Banihirwe.
  * Add the .vindex property to Explicitly Indexed Arrays for
    vectorized indexing functionality. (GH8238, PR8780) By Anderson
    Banihirwe.
  * Expand use of .oindex and .vindex properties. (:pull: 8790) By
    Anderson Banihirwe and Deepak Cherian.
  * Allow creating xr.Coordinates objects with no indexes (PR8711)
    By Benoit Bovy and Tom Nicholas.
  * Enable plotting of datetime.dates. (GH8866, PR8873) By Sascha
    Hofmann.
  ## Breaking changes
  * Don’t allow overwriting index variables with to_zarr region
    writes. (GH8589, PR8876). By Deepak Cherian.
  ## Bug fixes
  * The default freq parameter in xr.date_range() and
    xr.cftime_range() is set to 'D' only if periods, start, or end

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- Add xarray-pr8797-tokenize.patch
  * gh#pydata/xarray#8797 fixes gh#pydata/xarray#8788

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- Skip Python 3.9. It requires pydap, which is not available any
  more.

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- Update to 2024.2.0
  * This release brings size information to the text repr, changes
    to the accepted frequency strings, and various bug fixes.
  ## New Features
  * Added a simple nbytes representation in DataArrays and Dataset
    repr. (GH8690, PR8702). By Etienne Schalk.
  * Allow negative frequency strings (e.g. "-1YE"). These strings
    are for example used in date_range(), and cftime_range()
    (PR8651). By Mathias Hauser.
  * Add NamedArray.expand_dims(), NamedArray.permute_dims() and
    NamedArray.broadcast_to() (PR8380) By Anderson Banihirwe.
  * Xarray now defers to flox’s heuristics to set the default
    method for groupby problems. This only applies to flox>=0.9. By
    Deepak Cherian.
  * All quantile methods (e.g. DataArray.quantile()) now use
    numbagg for the calculation of nanquantiles (i.e., skipna=True)
    if it is installed. This is currently limited to the linear
    interpolation method (method=’linear’). (GH7377, PR8684) By
    Marco Wolsza.
  ## Breaking changes
  * infer_freq() always returns the frequency strings as defined in
    pandas 2.2 (GH8612, PR8627). By Mathias Hauser.
  * Deprecations
  * The dt.weekday_name parameter wasn’t functional on modern
    pandas versions and has been removed. (GH8610, PR8664) By Sam
    Coleman.
  ## Bug fixes
  * Fixed a regression that prevented multi-index level coordinates
    being serialized after resetting or dropping the multi-index
    (GH8628, PR8672). By Benoit Bovy.

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- Disable ROS3 tests, because hdf5 library was built without ROS3 support.

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- remove obsolete patch file xarray-pr8139-pandas-fill_value.patch

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remove patch

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- update to version 2023.12.0:
 - This release brings new `hypothesis <https://hypothesis.works/>`_ strategies for testing, significantly faster rolling aggregations as well as:
``ffill`` and ``bfill`` with ``numbagg``, a new :py:meth:`Dataset.eval` method, and improvements to
 - reading and writing Zarr arrays (including a new ``"a-"`` mode).:
 - Thanks to our 16 contributors:
 - Anderson Banihirwe, Ben Mares, Carl Andersson, Deepak Cherian, Doug Latornell, Gregorio L. Trevisan, Illviljan, Jens Hedegaard Nielsen, Justus Magin, Mathias Hauser, Max Jones, Maximilian Roos, Michael Niklas, Patrick Hoefler, Ryan Abernathey, Tom Nicholas:
 - New Features:
  - Added hypothesis strategies for generating :py:class:`xarray.Variable` objects containing arbitrary data, useful for parametrizing downstream tests.
    Accessible under :py:mod:`testing.strategies`, and documented in a new page on testing in the User Guide.
    (:issue:`6911`, :pull:`8404`)
    By `Tom Nicholas <https://github.com/TomNicholas>`_.
  - :py:meth:`rolling` uses `numbagg <https://github.com/numbagg/numbagg>`_ for
    most of its computations by default. Numbagg is up to 5x faster than bottleneck
    where parallelization is possible. Where parallelization isn't possible — for
    example a 1D array — it's about the same speed as bottleneck, and 2-5x faster
    than pandas' default functions. (:pull:`8493`). numbagg is an optional
    dependency, so requires installing separately.
    By `Maximilian Roos <https://github.com/max-sixty>`_.
  - Use a concise format when plotting datetime arrays. (:pull:`8449`).
    By `Jimmy Westling <https://github.com/illviljan>`_.
  - Avoid overwriting unchanged existing coordinate variables when appending with :py:meth:`Dataset.to_zarr` by setting ``mode='a-'``.
    By `Ryan Abernathey <https://github.com/rabernat>`_ and `Deepak Cherian <https://github.com/dcherian>`_.
  - :py:meth:`~xarray.DataArray.rank` now operates on dask-backed arrays, assuming
    the core dim has exactly one chunk. (:pull:`8475`).
    By `Maximilian Roos <https://github.com/max-sixty>`_.
  - Add a :py:meth:`Dataset.eval` method, similar to the pandas' method of the
    same name. (:pull:`7163`). This is currently marked as experimental and
    doesn't yet support the ``numexpr`` engine.
  - :py:meth:`Dataset.drop_vars` & :py:meth:`DataArray.drop_vars` allow passing a
    callable, similar to :py:meth:`Dataset.where` & :py:meth:`Dataset.sortby` & others.

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- Update to 2023.8.0
  * This release brings changes to minimum dependencies, allows
    reading of datasets where a dimension name is associated with a
    multidimensional variable (e.g. finite volume ocean model
    output), and introduces a new xarray.Coordinates object.
  ## Announcements
  * The xarray.Variable class is being refactored out to a new
    project title 'namedarray'. See the design doc for more
    details. Reach out to us on this discussion topic if you have
    any thoughts.
  ## What's Changed
  * Use variable name in all exceptions raised in as_variable by
    @ZedThree in #7995
  * Allow opening datasets with nD dimenson coordinate variables.
    by @dcherian in #7989
  * join together duplicate entries in the text repr by @keewis in
    #7225
  * Expose "Coordinates" as part of Xarray's public API by @benbovy
    in #7368
  * Update interpolate_na in dataset.py by @ilgast in #7974
  * Add HDF5 Section to read/write docs page by @rwegener2 in #8012
  * Add examples to docstrings by @harshitha1201 in #7937
  * (chore) min versions bump by @jhamman in #8022
  * Automatically chunk other in GroupBy binary ops. by @dcherian
    in #7684
  * change cumproduct to cumprod by @quantsnus in #8031
  * Reduce pre-commit update frequency to monthly from weekly. by
    @dcherian in #8033
  * sort when encoding coordinates for deterministic outputs by
    @itcarroll in #8034
  * Zarr : Allow setting write_empty_chunks by @RKuttruff in #8016
  * Count documentation by @Articoking in #8057
  * unpin numpy by @keewis in #8061
- Release 2023.7.0
  * This release brings improvements to the documentation on
    wrapping numpy-like arrays, improved docstrings, and bug fixes.
  ## What's Changed
  * Allow cubed arrays to be passed to flox groupby by @TomNicholas
    in #7941
  * Duck array documentation improvements by @TomNicholas in #7911
  * Docstring examples by @harshitha1201 in #7881
  * Chunked array docs by @TomNicholas in #7951
  * ensure no forward slashes in names for HDF5-based backends by
    @kmuehlbauer in #7953
  * Move absolute path finder from open_mfdataset to own function
    by @Illviljan in #7968
  * Skip broken tests on Python 3.11 and Windows by @Illviljan in
    #7972
  * Examples added to docstrings by @harshitha1201 in #7936
  * Fix typo in zarr.py by @johmathe in #7983
  * Improve explanation in example "Working with Multidimensional
    Coordinates" by @yvonnefroehlich in #7984
  * Remove hue_style from plot1d docstring by @Illviljan in #7925
- Release 2023.06.0
  * This release adds features to curvefit, improves the
    performance of concatenation, and fixes various bugs.
  ## What's Changed
  * Array API fixes for astype by @TomNicholas in #7847
  * Add type hints to test_dtypes by @Illviljan in #7858
  * 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
  * deprecate the cdms2 conversion methods by @keewis in #7876
  * Implement multidimensional initial guess and bounds for
    curvefit by @mgunyho in #7821
  * Improve concat performance by @Illviljan in #7824
  * 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
  * 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
  * Fix regression with grouper object on an IndexVariable by
    @mwtoews in #7920
  * Fix check for chunk_store in zarr backend by @juntyr in #7923
  * fixing rolling_window issue with cupy by @negin513 in #7938
- Add xarray-pr8139-pandas-fill_value.patch gh#pydata/xarray#8125,
  gh#pydata/xarray#8139

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- update to 2023.05.0:
  * This release adds some new methods and operators, updates our
    deprecation policy for python versions, fixes some bugs with
    groupby, and introduces experimental support for alternative
    chunked parallel array computation backends via a new plugin
    system!
  * Docstrings examples for string methods
  * Fix groupby_bins when labels are specified
  * Fix binning by unsorted array
  * This release includes support for pandas v2, allows
    refreshing of backend engines in a session, and removes
    deprecated backends for ``rasterio`` and ``cfgrib``.

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- 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`)

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