v0.10.2

The minor release includes a number of bug-fixes and enhancements, along with
one possibly backwards incompatible change (when applying NumPy ufunc methods to xarray objects).

For full details, see the release notes.

v0.10.1

The minor release includes a number of bug-fixes and backwards compatible enhancements. For full details, see the release notes.

v0.10.0

This is a major release that includes bug fixes, new features and a few
backwards incompatible changes. Highlights include:

• Indexing now supports broadcasting over dimensions, similar to NumPy's vectorized indexing (but better!).
• resample has a new groupby-like API like pandas.
• xarray.apply_ufunc facilitates wrapping and parallelizing functions written for NumPy arrays.
• Performance improvements, particularly for dask and open_mfdataset.

For more details, see the release notes: http://xarray.pydata.org/en/latest/whats-new.html

v0.10.0rc2

v0.10.0rc2

v0.10.0rc1

v0.10.0rc1

v0.9.6

This release includes a number of backwards compatible enhancements and bug fixes.

Enhancements

• New sortby() method to Dataset and DataArray that enable sorting along dimensions (GH967). See the docs for examples. By Chun-Wei Yuan and Kyle Heuton.
• Add .dt accessor to DataArrays for computing datetime-like properties for the values they contain, similar to pandas.Series (GH358). By Daniel Rothenberg.
• Renamed internal dask arrays created by open_dataset to match new dask conventions (GH1343). By Ryan Abernathey.
• as_variable() is now part of the public API (GH1303). By Benoit Bovy.
• align() now supports join='exact', which raises an error instead of aligning when indexes to be aligned are not equal. By Stephan Hoyer.
• New function open_rasterio() for opening raster files with the rasterio library. See the docs for details. By Joe Hamman, Nic Wayand and Fabien Maussion

Bug fixes

• Fix error from repeated indexing of datasets loaded from disk (GH1374). By Stephan Hoyer.
• Fix a bug where .isel_points wrongly assigns unselected coordinate to data_vars. By Keisuke Fujii.
• Tutorial datasets are now checked against a reference MD5 sum to confirm successful download (GH1392). By Matthew Gidden.
• DataArray.chunk() now accepts dask specific kwargs like Dataset.chunk() does. By Fabien Maussion.
• Support for engine='pydap' with recent releases of Pydap (3.2.2+), including on Python 3 (GH1174).

Documentation

• A new gallery allows to add interactive examples to the documentation. By Fabien Maussion.

Testing

• Fix test suite failure caused by changes to pandas.cut function (GH1386). By Ryan Abernathey.
• Enhanced tests suite by use of @network decorator, which is controlled via --run-network-tests command line argument to py.test (GH1393). By Matthew Gidden.

v0.9.5

Remove an inadvertently introduced print statement.

v0.9.3

Enhancements

• Add .persist() method to Datasets and DataArrays to enable persisting data in distributed memory (GH1344). By Matthew Rocklin.
• New expand_dims() method for DataArray and Dataset (GH1326). By Keisuke Fujii.

Bug fixes

• Fix .where() with drop=True when arguments do not have indexes (GH1350). This bug, introduced in v0.9, resulted in xarray producing incorrect results in some cases. By Stephan Hoyer.
• Fixed writing to file-like objects with to_netcdf() (GH1320). Stephan Hoyer.
• Fixed explicitly setting engine='scipy' with to_netcdf when not providing a path (GH1321). Stephan Hoyer.
• Fixed open_dataarray does not pass properly its parameters to open_dataset (GH1359). Stephan Hoyer.
• Ensure test suite works when runs from an installed version of xarray (GH1336). Use @pytest.mark.slow instead of a custom flag to mark slow tests. By Stephan Hoyer

v0.9.2

The minor release includes bug-fixes and backwards compatible enhancements.

Enhancements

• .rolling() on Dataset is now supported (GH859). By Keisuke Fujii.
• When bottleneck version 1.1 or later is installed, use bottleneck for rolling var, argmin, argmax, and rank computations. Also, rolling median now accepts a min_periods argument (GH1276). By Joe Hamman.
• When .plot() is called on a 2D DataArray and only one dimension is specified with x= or y=, the other dimension is now guessed (GH1291). By Vincent Noel.
• Added new method assign_attrs() to DataArray and Dataset, a chained-method compatible implementation of the dict.update method on attrs (GH1281). By Henry S. Harrison.
• Added new autoclose=True argument to open_mfdataset() to explicitly close opened files when not in use to prevent occurrence of an OS Error related to too many open files (GH1198). Note, the default is autoclose=False, which is consistent with previous xarray behavior. By Phillip J. Wolfram.
• The repr() of Dataset and DataArray attributes uses a similar format to coordinates and variables, with vertically aligned entries truncated to fit on a single line (GH1319). Hopefully this will stop people writing data.attrs = {} and discarding metadata in notebooks for the sake of cleaner output. The full metadata is still available as data.attrs. By Zac Hatfield-Dodds.
• Enhanced tests suite by use of @slow and @flaky decorators, which are controlled via --run-flaky and --skip-slow command line arguments to py.test (GH1336). By Stephan Hoyer and Phillip J. Wolfram.

Bug fixes

• Rolling operations now keep preserve original dimension order (GH1125). By Keisuke Fujii.
• Fixed sel with method='nearest' on Python 2.7 and 64-bit Windows (GH1140). Stephan Hoyer.
• Fixed where with drop='True' for empty masks (GH1341). By Stephan Hoyer and Phillip J. Wolfram.

v0.9.1

Renamed the "Unindexed dimensions" section in the Dataset and DataArray repr (added in v0.9.0) to "Dimensions without coordinates".