pydata/xarray v2026.01.0 on GitHub

What's Changed

new release section by @keewis in #10985
Address pandas-related upstream errors in #10973 by @spencerkclark in #10988
make error message more clear by @d-v-b in #10994
Change behavior of keep_attrs in xr.where when x is a scalar by @jsignell in #10997
Backend fastpath by @slevang in #10937
Switch from sphinx-llms-txt => sphinx-llm by @jacobtomlinson in #11003
Unpin array api strict by @JJFlorian in #10983
Fix RTD builds by restricting test-nightly platforms by @max-sixty in #11021
add drop_existing kwarg to set_xindex by @ianhi in #11008
fix paths in readme by @JJFlorian in #11032
Automatically create xindex by @ianhi in #11029
FIX: assert_identical now considers xindexes + improve RangeIndex equals by @ianhi in #11035
fix: where for cupy.array by @hoxbro in #11026
Ensure SeasonResampler preserves datetime resolution by @spencerkclark in #11049
Address upstream failures revealed in #11043 by @spencerkclark in #11050
re-enable the minimum versions ci by @keewis in #11027
Fix indexing bugs in CoordinateTransformIndex by @dcherian in #10980
DOC: Correct grammatical errors such as 'a xarray' -> 'an xarray' by @star1327p in #11058
documenting how xarray.dot() interacts with coordinates by @dhruvak001 in #10958
Remove special mapping of auto to {} in open_zarr by @jsignell in #11010
fix group by > 1 group, then map by @joshua-gould in #11005
Add cross-links for apply_ufunc in top-level API documentation by @Sakshee-D in #11063
Make parallel documentation builds threadsafe by @jacobtomlinson in #11009
bug fix combined-lock-locked issue #10843 by @samay2504 in #11022
Fix mypy errors with newer pandas-stubs by @max-sixty in #11066
Bump the minimum version of h5netcdf to 1.4.0 in accordance with nep29 by @hmaarrfk in #11068
chore(pixi): fix solvability on windows by @lucascolley in #11084
Add an arithmetic_compat option to xr.set_options by @mjwillson in #10943
Improve HTML reprs by @shoyer in #10816
use a pixi-build-python version compatible with the newest pixi by @keewis in #11090
Dataset.eval works with >2 dims by @max-sixty in #11064
create a development environment by @keewis in #10995
Better ordering of coords in repr by @jsignell in #11091
DOC: Correct more typos in xarray documentation by @star1327p in #11092
rolling window doc update by @barronh in #11094
Coerce pd.StringDtype to np.dtypes.StringDType by @jsignell in #11102
MAINT: Update pixi pin to v0.63.2 by @VeckoTheGecko in #11106
DOCS: Update contributing instructions with note on pixi version by @VeckoTheGecko in #11108
Use StringDType when reading from zarr string variables by @jsignell in #11097
Optimize CFMaskScale decoder. by @dcherian in #11105
Ensure netcdf4 is locked while closing by @dschwoerer in #10788
Prep for new combine kwargs: improve combine docstrings, tidy up tests by @jsignell in #11080
Improve error message when scipy is missing for NDPointIndex by @Sakshee-D in #11085
Update whats-new for v2026.01.0 release by @dcherian in #11109

New Contributors

@JJFlorian made their first contribution in #10983
@joshua-gould made their first contribution in #11005
@Sakshee-D made their first contribution in #11063
@samay2504 made their first contribution in #11022
@lucascolley made their first contribution in #11084

Full Changelog: v2025.12.0...v2026.01.0