1Changelog 2========= 3 42021.11.2 5--------- 6 7Released on November 19, 2021 8 9- Only run gpuCI bump script daily (:pr:`8404`) `Charles Blackmon-Luca`_ 10- Actually ignore index when asked in ``assert_eq`` (:pr:`8396`) `Gabe Joseph`_ 11- Ensure single-partition join ``divisions`` is ``tuple`` (:pr:`8389`) `Charles Blackmon-Luca`_ 12- Try to make divisions behavior clearer (:pr:`8379`) `Julia Signell`_ 13- Fix typo in ``set_index`` ``partition_size`` parameter description (:pr:`8384`) `FredericOdermatt`_ 14- Use ``blockwise`` in ``single_partition_join`` (:pr:`8341`) `Gabe Joseph`_ 15- Use more explicit keyword arguments (:pr:`8354`) `Boaz Mohar`_ 16- Fix ``.loc`` of DataFrame with nullable boolean ``dtype`` (:pr:`8368`) `Marco Rossi`_ 17- Parameterize shuffle implementation in tests (:pr:`8250`) `Ian Rose`_ 18- Remove some doc build warnings (:pr:`8369`) `Boaz Mohar`_ 19- Include properties in array API docs (:pr:`8356`) `Julia Signell`_ 20- Fix Zarr for upstream (:pr:`8367`) `Julia Signell`_ 21- Pin ``graphviz`` to avoid issue with windows and Python 3.7 (:pr:`8365`) `Julia Signell`_ 22- Import ``graphviz.Diagraph`` from top of module, not from ``dot`` (:pr:`8363`) `Julia Signell`_ 23 24 252021.11.1 26--------- 27 28Released on November 8, 2021 29 30Patch release to update ``distributed`` dependency to version ``2021.11.1``. 31 32 332021.11.0 34--------- 35 36Released on November 5, 2021 37 38- Fx ``required_extension`` behavior in ``read_parquet`` (:pr:`8351`) `Richard (Rick) Zamora`_ 39- Add ``align_dataframes`` to ``map_partitions`` to broadcast a dataframe passed as an arg (:pr:`6628`) `Julia Signell`_ 40- Better handling for arrays/series of keys in ``dask.dataframe.loc`` (:pr:`8254`) `Julia Signell`_ 41- Point users to Discourse (:pr:`8332`) `Ian Rose`_ 42- Add ``name_function`` option to ``to_parquet`` (:pr:`7682`) `Matthew Powers`_ 43- Get rid of ``environment-latest.yml`` and update to Python 3.9 (:pr:`8275`) `Julia Signell`_ 44- Require newer ``s3fs`` in CI (:pr:`8336`) `James Bourbeau`_ 45- Groupby Rolling (:pr:`8176`) `Julia Signell`_ 46- Add more ordering diagnostics to ``dask.visualize`` (:pr:`7992`) `Erik Welch`_ 47- Use ``HighLevelGraph`` optimizations for ``delayed`` (:pr:`8316`) `Ian Rose`_ 48- ``demo_tuples`` produces malformed ``HighLevelGraph`` (:pr:`8325`) `Guido Imperiale`_ 49- Dask calendar should show events in local time (:pr:`8312`) `Genevieve Buckley`_ 50- Fix flaky ``test_interrupt`` (:pr:`8314`) `Guido Imperiale`_ 51- Deprecate ``AxisError`` (:pr:`8305`) `Guido Imperiale`_ 52- Fix name of cuDF in extension documentation. (:pr:`8311`) `Vyas Ramasubramani`_ 53- Add single eq operator (=) to parquet filters (:pr:`8300`) `Ayush Dattagupta`_ 54- Improve support for Spark output in ``read_parquet`` (:pr:`8274`) `Richard (Rick) Zamora`_ 55- Add ``dask.ml`` module (:pr:`6384`) `Matthew Rocklin`_ 56- CI fixups (:pr:`8298`) `James Bourbeau`_ 57- Make slice errors match NumPy (:pr:`8248`) `Julia Signell`_ 58- Fix API docs misrendering with new sphinx theme (:pr:`8296`) `Julia Signell`_ 59- Replace ``block`` property with ``blockview`` for array-like operations on blocks (:pr:`8242`) `Davis Bennett`_ 60- Deprecate ``file_path`` and make it possible to save from within a notebook (:pr:`8283`) `Julia Signell`_ 61 62 632021.10.0 64--------- 65 66Released on October 22, 2021 67 68- ``da.store`` to create well-formed ``HighLevelGraph`` (:pr:`8261`) `Guido Imperiale`_ 69- CI: force nightly ``pyarrow`` in the upstream build (:pr:`8281`) `Joris Van den Bossche`_ 70- Remove ``chest`` (:pr:`8279`) `James Bourbeau`_ 71- Skip doctests if optional dependencies are not installed (:pr:`8258`) `Genevieve Buckley`_ 72- Update ``tmpdir`` and ``tmpfile`` context manager docstrings (:pr:`8270`) `Daniel Mesejo-León`_ 73- Unregister callbacks in doctests (:pr:`8276`) `James Bourbeau`_ 74- Fix typo in docs (:pr:`8277`) `JoranDox`_ 75- Stale label GitHub action (:pr:`8244`) `Genevieve Buckley`_ 76- Client-shutdown method appears twice (:pr:`8273`) `German Shiklov`_ 77- Add pre-commit to test requirements (:pr:`8257`) `Genevieve Buckley`_ 78- Refactor ``read_metadata`` in ``fastparquet`` engine (:pr:`8092`) `Richard (Rick) Zamora`_ 79- Support ``Path`` objects in ``from_zarr`` (:pr:`8266`) `Samuel Gaist`_ 80- Make nested redirects work (:pr:`8272`) `Julia Signell`_ 81- Set ``memory_usage`` to ``True`` if ``verbose`` is ``True`` in info (:pr:`8222`) `Kinshuk Dua`_ 82- Remove individual API doc pages from sphinx toctree (:pr:`8238`) `James Bourbeau`_ 83- Ignore whitespace in gufunc ``signature`` (:pr:`8267`) `James Bourbeau`_ 84- Add workflow to update gpuCI (:pr:`8215`) `Charles Blackmon-Luca`_ 85- ``DataFrame.head`` shouldn't warn when there's one partition (:pr:`8091`) `Pankaj Patil`_ 86- Ignore arrow doctests if ``pyarrow`` not installed (:pr:`8256`) `Genevieve Buckley`_ 87- Fix ``debugging.html`` redirect (:pr:`8251`) `James Bourbeau`_ 88- Fix null sorting for single partition dataframes (:pr:`8225`) `Charles Blackmon-Luca`_ 89- Fix ``setup.html`` redirect (:pr:`8249`) `Florian Jetter`_ 90- Run ``pyupgrade`` in CI (:pr:`8246`) `Guido Imperiale`_ 91- Fix label typo in upstream CI build (:pr:`8237`) `James Bourbeau`_ 92- Add support for "dependent" columns in DataFrame.assign (:pr:`8086`) `Suriya Senthilkumar`_ 93- add NumPy array of Dask keys to ``Array`` (:pr:`7922`) `Davis Bennett`_ 94- Remove unnecessary ``dask.multiprocessing`` import in docs (:pr:`8240`) `Ray Bell`_ 95- Adjust retrieving ``_max_workers`` from ``Executor`` (:pr:`8228`) `John A Kirkham`_ 96- Update function signatures in ``delayed`` best practices docs (:pr:`8231`) `Vũ Trung Đức`_ 97- Docs reoganization (:pr:`7984`) `Julia Signell`_ 98- Fix ``df.quantile`` on all missing data (:pr:`8129`) `Julia Signell`_ 99- Add ``tokenize.ensure-deterministic`` config option (:pr:`7413`) `Hristo Georgiev`_ 100- Use ``inclusive`` rather than ``closed`` with ``pandas>=1.4.0`` and ``pd.date_range`` (:pr:`8213`) `Julia Signell`_ 101- Add ``dask-gateway``, Coiled, and Saturn-Cloud to list of Dask setup tools (:pr:`7814`) `Kristopher Overholt`_ 102- Ensure existing futures get passed as deps when serializing ``HighLevelGraph`` layers (:pr:`8199`) `Jim Crist-Harif`_ 103- Make sure that the divisions of the single partition merge is left (:pr:`8162`) `Julia Signell`_ 104- Refactor ``read_metadata`` in ``pyarrow`` parquet engines (:pr:`8072`) `Richard (Rick) Zamora`_ 105- Support negative ``drop_axis`` in ``map_blocks`` and ``map_overlap`` (:pr:`8192`) `Gregory R. Lee`_ 106- Fix upstream tests (:pr:`8205`) `Julia Signell`_ 107- Add support for scalar item assignment by Series (:pr:`8195`) `Charles Blackmon-Luca`_ 108- Add some basic examples to doc strings on ``dask.bag`` ``all``, ``any``, ``count`` methods (:pr:`7630`) `Nathan Danielsen`_ 109- Don't have upstream report depend on commit message (:pr:`8202`) `James Bourbeau`_ 110- Ensure upstream CI cron job runs (:pr:`8200`) `James Bourbeau`_ 111- Use ``pytest.param`` to properly label param-specific GPU tests (:pr:`8197`) `Charles Blackmon-Luca`_ 112- Add ``test_set_index`` to tests ran on gpuCI (:pr:`8198`) `Charles Blackmon-Luca`_ 113- Suppress ``tmpfile`` OSError (:pr:`8191`) `James Bourbeau`_ 114- Use ``s.isna`` instead of ``pd.isna(s)`` in ``set_partitions_pre`` (fix cudf CI) (:pr:`8193`) `Charles Blackmon-Luca`_ 115- Open an issue for ``test-upstream`` failures (:pr:`8067`) `Wallace Reis`_ 116- Fix ``to_parquet`` bug in call to ``pyarrow.parquet.read_metadata`` (:pr:`8186`) `Richard (Rick) Zamora`_ 117- Add handling for null values in ``sort_values`` (:pr:`8167`) `Charles Blackmon-Luca`_ 118- Bump ``RAPIDS_VER`` for gpuCI (:pr:`8184`) `Charles Blackmon-Luca`_ 119- Dispatch walks MRO for lazily registered handlers (:pr:`8185`) `Jim Crist-Harif`_ 120- Configure SSHCluster instructions (:pr:`8181`) `Ray Bell`_ 121- Preserve ``HighLevelGraphs`` in ``DataFrame.from_delayed`` (:pr:`8174`) `Gabe Joseph`_ 122- Deprecate ``inplace`` argument for Dask series renaming (:pr:`8136`) `Marcel Coetzee`_ 123- Fix rolling for compatibility with ``pandas > 1.3.0`` (:pr:`8150`) `Julia Signell`_ 124- Raise error when ``setitem`` on unknown chunks (:pr:`8166`) `Julia Signell`_ 125- Include divisions when doing ``Index.to_series`` (:pr:`8165`) `Julia Signell`_ 126 127 1282021.09.1 129--------- 130 131Released on September 21, 2021 132 133- Fix ``groupby`` for future pandas (:pr:`8151`) `Julia Signell`_ 134- Remove warning filters in tests that are no longer needed (:pr:`8155`) `Julia Signell`_ 135- Add link to diagnostic visualize function in local diagnostic docs (:pr:`8157`) `David Hoese`_ 136- Add ``datetime_is_numeric`` to ``dataframe.describe`` (:pr:`7719`) `Julia Signell`_ 137- Remove references to ``pd.Int64Index`` in anticipation of deprecation (:pr:`8144`) `Julia Signell`_ 138- Use ``loc`` if needed for series ``__get_item__`` (:pr:`7953`) `Julia Signell`_ 139- Specifically ignore warnings on mean for empty slices (:pr:`8125`) `Julia Signell`_ 140- Skip ``groupby`` ``nunique`` test for pandas >= 1.3.3 (:pr:`8142`) `Julia Signell`_ 141- Implement ``ascending`` arg for ``sort_values`` (:pr:`8130`) `Charles Blackmon-Luca`_ 142- Replace ``operator.getitem`` (:pr:`8015`) `Naty Clementi`_ 143- Deprecate ``zero_broadcast_dimensions`` and ``homogeneous_deepmap`` (:pr:`8134`) `SnkSynthesis`_ 144- Add error if ``drop_index`` is negative (:pr:`8064`) `neel iyer`_ 145- Allow ``scheduler`` to be an ``Executor`` (:pr:`8112`) `John A Kirkham`_ 146- Handle ``asarray``/``asanyarray`` cases where ``like`` is a ``dask.Array`` (:pr:`8128`) `Peter Andreas Entschev`_ 147- Fix ``index_col`` duplication if ``index_col`` is type ``str`` (:pr:`7661`) `McToel`_ 148- Add ``dtype`` and ``order`` to ``asarray`` and ``asanyarray`` definitions (:pr:`8106`) `Julia Signell`_ 149- Deprecate ``dask.dataframe.Series.__contains__`` (:pr:`7914`) `Julia Signell`_ 150- Fix edge case with ``like``-arrays in ``_wrapped_qr`` (:pr:`8122`) `Peter Andreas Entschev`_ 151- Deprecate ``boundary_slice`` kwarg: ``kind`` for pandas compat (:pr:`8037`) `Julia Signell`_ 152 153 1542021.09.0 155--------- 156 157Released on September 3, 2021 158 159- Fewer open files (:pr:`7303`) `Julia Signell`_ 160- Add ``FileNotFound`` to expected http errors (:pr:`8109`) `Martin Durant`_ 161- Add ``DataFrame.sort_values`` to API docs (:pr:`8107`) `Benjamin Zaitlen`_ 162- Change to ``dask.order``: be more eager at times (:pr:`7929`) `Erik Welch`_ 163- Add pytest color to CI (:pr:`8090`) `James Bourbeau`_ 164- FIX: ``make_people`` works with ``processes`` scheduler (:pr:`8103`) `Dahn`_ 165- Adds ``deep`` param to Dataframe copy method and restrict it to ``False`` (:pr:`8068`) `João Paulo Lacerda`_ 166- Fix typo in configuration docs (:pr:`8104`) `Robert Hales`_ 167- Update formatting in ``DataFrame.query`` docstring (:pr:`8100`) `James Bourbeau`_ 168- Un-xfail ``sparse`` tests for 0.13.0 release (:pr:`8102`) `James Bourbeau`_ 169- Add axes property to DataFrame and Series (:pr:`8069`) `Jordan Jensen`_ 170- Add CuPy support in ``da.unique`` (values only) (:pr:`8021`) `Peter Andreas Entschev`_ 171- Unit tests for ``sparse.zeros_like`` (xfailed) (:pr:`8093`) `Guido Imperiale`_ 172- Add explicit ``like`` kwarg support to array creation functions (:pr:`8054`) `Peter Andreas Entschev`_ 173- Separate Array and DataFrame mindeps builds (:pr:`8079`) `James Bourbeau`_ 174- Fork out ``percentile_dispatch`` to ``dask.array`` (:pr:`8083`) `GALI PREM SAGAR`_ 175- Ensure ``filepath`` exists in ``to_parquet`` (:pr:`8057`) `James Bourbeau`_ 176- Update scheduler plugin usage in ``test_scheduler_highlevel_graph_unpack_import`` (:pr:`8080`) `James Bourbeau`_ 177- Add ``DataFrame.shuffle`` to API docs (:pr:`8076`) `Martin Fleischmann`_ 178- Order requirements alphabetically (:pr:`8073`) `John A Kirkham`_ 179 180 1812021.08.1 182--------- 183 184Released on August 20, 2021 185 186- Add ``ignore_metadata_file`` option to ``read_parquet`` (``pyarrow-dataset`` and ``fastparquet`` support only) (:pr:`8034`) `Richard (Rick) Zamora`_ 187- Add reference to ``pytest-xdist`` in dev docs (:pr:`8066`) `Julia Signell`_ 188- Include ``tz`` in meta from ``to_datetime`` (:pr:`8000`) `Julia Signell`_ 189- CI Infra Docs (:pr:`7985`) `Benjamin Zaitlen`_ 190- Include invalid DataFrame key in ``assert_eq`` check (:pr:`8061`) `James Bourbeau`_ 191- Use ``__class__`` when creating DataFrames (:pr:`8053`) `Mads R. B. Kristensen`_ 192- Use development version of ``distributed`` in gpuCI build (:pr:`7976`) `James Bourbeau`_ 193- Ignore whitespace when gufunc ``signature`` (:pr:`8049`) `James Bourbeau`_ 194- Move pandas import and percentile dispatch refactor (:pr:`8055`) `GALI PREM SAGAR`_ 195- Add colors to represent high level layer types (:pr:`7974`) `Freyam Mehta`_ 196- Upstream instance fix (:pr:`8060`) `Jacob Tomlinson`_ 197- Add ``dask.widgets`` and migrate HTML reprs to ``jinja2`` (:pr:`8019`) `Jacob Tomlinson`_ 198- Remove ``wrap_func_like_safe``, not required with NumPy >= 1.17 (:pr:`8052`) `Peter Andreas Entschev`_ 199- Fix threaded scheduler memory backpressure regression (:pr:`8040`) `David Hoese`_ 200- Add percentile dispatch (:pr:`8029`) `GALI PREM SAGAR`_ 201- Use a publicly documented attribute ``obj`` in ``groupby`` rather than private ``_selected_obj`` (:pr:`8038`) `GALI PREM SAGAR`_ 202- Specify module to ``import rechunk`` from (:pr:`8039`) `Illviljan`_ 203- Use ``dict`` to store data for {nan,}arg{min,max} in certain cases (:pr:`8014`) `Peter Andreas Entschev`_ 204- Fix ``blocksize`` description formatting in ``read_pandas`` (:pr:`8047`) `Louis Maddox`_ 205- Fix "point" -> "pointers" typo in docs (:pr:`8043`) `David Chudzicki`_ 206 207 2082021.08.0 209--------- 210 211Released on August 13, 2021 212 213- Fix ``to_orc`` delayed compute behavior (:pr:`8035`) `Richard (Rick) Zamora`_ 214- Don't convert to low-level task graph in ``compute_as_if_collection`` (:pr:`7969`) `James Bourbeau`_ 215- Fix multifile read for hdf (:pr:`8033`) `Julia Signell`_ 216- Resolve warning in ``distributed`` tests (:pr:`8025`) `James Bourbeau`_ 217- Update ``to_orc`` collection name (:pr:`8024`) `James Bourbeau`_ 218- Resolve ``skipfooter`` problem (:pr:`7855`) `Ross`_ 219- Raise ``NotImplementedError`` for non-indexable arg passed to ``to_datetime`` (:pr:`7989`) `Doug Davis`_ 220- Ensure we error on warnings from ``distributed`` (:pr:`8002`) `James Bourbeau`_ 221- Added ``dict`` format in ``to_bag`` accessories of DataFrame (:pr:`7932`) `gurunath`_ 222- Delayed docs indirect dependencies (:pr:`8016`) `aa1371`_ 223- Add tooltips to graphviz high-level graphs (:pr:`7973`) `Freyam Mehta`_ 224- Close 2021 User Survey (:pr:`8007`) `Julia Signell`_ 225- Reorganize CuPy tests into multiple files (:pr:`8013`) `Peter Andreas Entschev`_ 226- Refactor and Expand Dask-Dataframe ORC API (:pr:`7756`) `Richard (Rick) Zamora`_ 227- Don't enforce columns if ``enforce=False`` (:pr:`7916`) `Julia Signell`_ 228- Fix ``map_overlap`` trimming behavior when ``drop_axis`` is not ``None`` (:pr:`7894`) `Gregory R. Lee`_ 229- Mark gpuCI CuPy test as flaky (:pr:`7994`) `Peter Andreas Entschev`_ 230- Avoid using ``Delayed`` in ``to_csv`` and ``to_parquet`` (:pr:`7968`) `Matthew Rocklin`_ 231- Removed redundant ``check_dtypes`` (:pr:`7952`) `gurunath`_ 232- Use ``pytest.warns`` instead of raises for checking parquet engine deprecation (:pr:`7993`) `Joris Van den Bossche`_ 233- Bump ``RAPIDS_VER`` in gpuCI to 21.10 (:pr:`7991`) `Charles Blackmon-Luca`_ 234- Add back ``pyarrow-legacy`` test coverage for ``pyarrow>=5`` (:pr:`7988`) `Richard (Rick) Zamora`_ 235- Allow ``pyarrow>=5`` in ``to_parquet`` and ``read_parquet`` (:pr:`7967`) `Richard (Rick) Zamora`_ 236- Skip CuPy tests requiring NEP-35 when NumPy < 1.20 is available (:pr:`7982`) `Peter Andreas Entschev`_ 237- Add ``tail`` and ``head`` to ``SeriesGroupby`` (:pr:`7935`) `Daniel Mesejo-León`_ 238- Update Zoom link for monthly meeting (:pr:`7979`) `James Bourbeau`_ 239- Add gpuCI build script (:pr:`7966`) `Charles Blackmon-Luca`_ 240- Deprecate ``daily_stock`` utility (:pr:`7949`) `James Bourbeau`_ 241- Add ``distributed.nanny`` to configuration reference docs (:pr:`7955`) `James Bourbeau`_ 242- Require NumPy 1.18+ & Pandas 1.0+ (:pr:`7939`) `John A Kirkham`_ 243 244 2452021.07.2 246--------- 247 248Released on July 30, 2021 249 250.. note:: 251 252 This is the last release with support for NumPy 1.17 and pandas 0.25. 253 Beginning with the next release, NumPy 1.18 and pandas 1.0 will be the minimum 254 supported versions. 255 256- Add ``dask.array`` SVG to the HTML Repr (:pr:`7886`) `Freyam Mehta`_ 257- Avoid use of ``Delayed`` in ``to_parquet`` (:pr:`7958`) `Matthew Rocklin`_ 258- Temporarily pin ``pyarrow<5`` in CI (:pr:`7960`) `James Bourbeau`_ 259- Add deprecation warning for top-level ``ucx`` and ``rmm`` config values (:pr:`7956`) `James Bourbeau`_ 260- Remove skips from doctests (4 of 6) (:pr:`7865`) `Zhengnan Zhao`_ 261- Remove skips from doctests (5 of 6) (:pr:`7864`) `Zhengnan Zhao`_ 262- Adds missing prepend/append functionality to ``da.diff`` (:pr:`7946`) `Peter Andreas Entschev`_ 263- Change graphviz font family to sans (:pr:`7931`) `Freyam Mehta`_ 264- Fix read-csv name - when path is different, use different name for task (:pr:`7942`) `Julia Signell`_ 265- Update configuration reference for ``ucx`` and ``rmm`` changes (:pr:`7943`) `James Bourbeau`_ 266- Add meta support to ``__setitem__`` (:pr:`7940`) `Peter Andreas Entschev`_ 267- NEP-35 support for ``slice_with_int_dask_array`` (:pr:`7927`) `Peter Andreas Entschev`_ 268- Unpin fastparquet in CI (:pr:`7928`) `James Bourbeau`_ 269- Remove skips from doctests (3 of 6) (:pr:`7872`) `Zhengnan Zhao`_ 270 271 2722021.07.1 273--------- 274 275Released on July 23, 2021 276 277- Make array ``assert_eq`` check dtype (:pr:`7903`) `Julia Signell`_ 278- Remove skips from doctests (6 of 6) (:pr:`7863`) `Zhengnan Zhao`_ 279- Remove experimental feature warning from actors docs (:pr:`7925`) `Matthew Rocklin`_ 280- Remove skips from doctests (2 of 6) (:pr:`7873`) `Zhengnan Zhao`_ 281- Separate out Array and Bag API (:pr:`7917`) `Julia Signell`_ 282- Implement lazy ``Array.__iter__`` (:pr:`7905`) `Julia Signell`_ 283- Clean up places where we inadvertently iterate over arrays (:pr:`7913`) `Julia Signell`_ 284- Add ``numeric_only`` kwarg to DataFrame reductions (:pr:`7831`) `Julia Signell`_ 285- Add pytest marker for GPU tests (:pr:`7876`) `Charles Blackmon-Luca`_ 286- Add support for ``histogram2d`` in ``dask.array`` (:pr:`7827`) `Doug Davis`_ 287- Remove skips from doctests (1 of 6) (:pr:`7874`) `Zhengnan Zhao`_ 288- Add node size scaling to the Graphviz output for the high level graphs (:pr:`7869`) `Freyam Mehta`_ 289- Update old Bokeh links (:pr:`7915`) `Bryan Van de Ven`_ 290- Temporarily pin ``fastparquet`` in CI (:pr:`7907`) `James Bourbeau`_ 291- Add ``dask.array`` import to progress bar docs (:pr:`7910`) `Fabian Gebhart`_ 292- Use separate files for each DataFrame API function and method (:pr:`7890`) `Julia Signell`_ 293- Fix ``pyarrow-dataset`` ordering bug (:pr:`7902`) `Richard (Rick) Zamora`_ 294- Generalize unique aggregate (:pr:`7892`) `GALI PREM SAGAR`_ 295- Raise ``NotImplementedError`` when using ``pd.Grouper`` (:pr:`7857`) `Ruben van de Geer`_ 296- Add ``aggregate_files`` argument to enable multi-file partitions in ``read_parquet`` (:pr:`7557`) `Richard (Rick) Zamora`_ 297- Un-``xfail`` ``test_daily_stock`` (:pr:`7895`) `James Bourbeau`_ 298- Update access configuration docs (:pr:`7837`) `Naty Clementi`_ 299- Use packaging for version comparisons (:pr:`7820`) `Elliott Sales de Andrade`_ 300- Handle infinite loops in ``merge_asof`` (:pr:`7842`) `gerrymanoim`_ 301 302 3032021.07.0 304--------- 305 306Released on July 9, 2021 307 308- Include ``fastparquet`` in upstream CI build (:pr:`7884`) `James Bourbeau`_ 309- Blockwise: handle non-string constant dependencies (:pr:`7849`) `Mads R. B. Kristensen`_ 310- ``fastparquet`` now supports new time types, including ns precision (:pr:`7880`) `Martin Durant`_ 311- Avoid ``ParquetDataset`` API when appending in ``ArrowDatasetEngine`` (:pr:`7544`) `Richard (Rick) Zamora`_ 312- Add retry logic to ``test_shuffle_priority`` (:pr:`7879`) `Richard (Rick) Zamora`_ 313- Use strict channel priority in CI (:pr:`7878`) `James Bourbeau`_ 314- Support nested ``dask.distributed`` imports (:pr:`7866`) `Matthew Rocklin`_ 315- Should check module name only, not the entire directory filepath (:pr:`7856`) `Genevieve Buckley`_ 316- Updates due to https://github.com/dask/fastparquet/pull/623 (:pr:`7875`) `Martin Durant`_ 317- ``da.eye`` fix for ``chunks=-1`` (:pr:`7854`) `Naty Clementi`_ 318- Temporarily xfail ``test_daily_stock`` (:pr:`7858`) `James Bourbeau`_ 319- Set priority annotations in ``SimpleShuffleLayer`` (:pr:`7846`) `Richard (Rick) Zamora`_ 320- Blockwise: stringify constant key inputs (:pr:`7838`) `Mads R. B. Kristensen`_ 321- Allow mixing dask and numpy arrays in ``@guvectorize`` (:pr:`6863`) `Julia Signell`_ 322- Don't sample dict result of a shuffle group when calculating its size (:pr:`7834`) `Florian Jetter`_ 323- Fix scipy tests (:pr:`7841`) `Julia Signell`_ 324- Deterministically tokenize ``datetime.date`` (:pr:`7836`) `James Bourbeau`_ 325- Add ``sample_rows`` to ``read_csv``-like (:pr:`7825`) `Martin Durant`_ 326- Fix typo in ``config.deserialize`` docstring (:pr:`7830`) `Geoffrey Lentner`_ 327- Remove warning filter in ``test_dataframe_picklable`` (:pr:`7822`) `James Bourbeau`_ 328- Improvements to ``histogramdd`` (for handling inputs that are sequences-of-arrays). (:pr:`7634`) `Doug Davis`_ 329- Make ``PY_VERSION`` private (:pr:`7824`) `James Bourbeau`_ 330 331 3322021.06.2 333--------- 334 335Released on June 22, 2021 336 337- ``layers.py`` compare ``parts_out`` with ``set(self.parts_out)`` (:pr:`7787`) `Genevieve Buckley`_ 338- Make ``check_meta`` understand pandas dtypes better (:pr:`7813`) `Julia Signell`_ 339- Remove "Educational Resources" doc page (:pr:`7818`) `James Bourbeau`_ 340 341 3422021.06.1 343--------- 344 345Released on June 18, 2021 346 347- Replace funding page with 'Supported By' section on dask.org (:pr:`7817`) `James Bourbeau`_ 348- Add initial deprecation utilities (:pr:`7810`) `James Bourbeau`_ 349- Enforce dtype conservation in ufuncs that explicitly use ``dtype=`` (:pr:`7808`) `Doug Davis`_ 350- Add Coiled to list of paid support organizations (:pr:`7811`) `Kristopher Overholt`_ 351- Small tweaks to the HTML repr for ``Layer`` & ``HighLevelGraph`` (:pr:`7812`) `Genevieve Buckley`_ 352- Add dark mode support to HLG HTML repr (:pr:`7809`) `Jacob Tomlinson`_ 353- Remove compatibility entries for old distributed (:pr:`7801`) `Elliott Sales de Andrade`_ 354- Implementation of HTML repr for ``HighLevelGraph`` layers (:pr:`7763`) `Genevieve Buckley`_ 355- Update default ``blockwise`` token to avoid DataFrame column name clash (:pr:`6546`) `James Bourbeau`_ 356- Use dispatch ``concat`` for ``merge_asof`` (:pr:`7806`) `Julia Signell`_ 357- Fix upstream freq tests (:pr:`7795`) `Julia Signell`_ 358- Use more context managers from the standard library (:pr:`7796`) `James Bourbeau`_ 359- Simplify skips in parquet tests (:pr:`7802`) `Elliott Sales de Andrade`_ 360- Remove check for outdated bokeh (:pr:`7804`) `Elliott Sales de Andrade`_ 361- More test coverage uploads (:pr:`7799`) `James Bourbeau`_ 362- Remove ``ImportError`` catching from ``dask/__init__.py`` (:pr:`7797`) `James Bourbeau`_ 363- Allow ``DataFrame.join()`` to take a list of DataFrames to merge with (:pr:`7578`) `Krishan Bhasin`_ 364- Fix maximum recursion depth exception in ``dask.array.linspace`` (:pr:`7667`) `Daniel Mesejo-León`_ 365- Fix docs links (:pr:`7794`) `Julia Signell`_ 366- Initial ``da.select()`` implementation and test (:pr:`7760`) `Gabriel Miretti`_ 367- Layers must implement ``get_output_keys`` method (:pr:`7790`) `Genevieve Buckley`_ 368- Don't include or expect ``freq`` in divisions (:pr:`7785`) `Julia Signell`_ 369- A ``HighLevelGraph`` abstract layer for ``map_overlap`` (:pr:`7595`) `Genevieve Buckley`_ 370- Always include kwarg name in ``drop`` (:pr:`7784`) `Julia Signell`_ 371- Only rechunk for median if needed (:pr:`7782`) `Julia Signell`_ 372- Add ``add_(prefix|suffix)`` to DataFrame and Series (:pr:`7745`) `tsuga`_ 373- Move ``read_hdf`` to ``Blockwise`` (:pr:`7625`) `Richard (Rick) Zamora`_ 374- Make ``Layer.get_output_keys`` officially an abstract method (:pr:`7775`) `Genevieve Buckley`_ 375- Non-dask-arrays and broadcasting in ``ravel_multi_index`` (:pr:`7594`) `Gabe Joseph`_ 376- Fix for paths ending with "/" in parquet overwrite (:pr:`7773`) `Martin Durant`_ 377- Fixing calling ``.visualize()`` with ``filename=None`` (:pr:`7740`) `Freyam Mehta`_ 378- Generate unique names for ``SubgraphCallable`` (:pr:`7637`) `Bruce Merry`_ 379- Pin ``fsspec`` to ``2021.5.0`` in CI (:pr:`7771`) `James Bourbeau`_ 380- Evaluate graph lazily if meta is provided in ``from_delayed`` (:pr:`7769`) `Florian Jetter`_ 381- Add ``meta`` support for ``DatetimeTZDtype`` (:pr:`7627`) `gerrymanoim`_ 382- Add dispatch label to automatic PR labeler (:pr:`7701`) `James Bourbeau`_ 383- Fix HDFS tests (:pr:`7752`) `Julia Signell`_ 384 385 3862021.06.0 387--------- 388 389Released on June 4, 2021 390 391- Remove abstract tokens from graph keys in ``rewrite_blockwise`` (:pr:`7721`) `Richard (Rick) Zamora`_ 392- Ensure correct column order in csv ``project_columns`` (:pr:`7761`) `Richard (Rick) Zamora`_ 393- Renamed inner loop variables to avoid duplication (:pr:`7741`) `Boaz Mohar`_ 394- Do not return delayed object from ``to_zarr`` (:pr:`7738`) `Chris Roat` 395- Array: correct number of outputs in ``apply_gufunc`` (:pr:`7669`) `Gabe Joseph`_ 396- Rewrite ``da.fromfunction`` with ``da.blockwise`` (:pr:`7704`) `John A Kirkham`_ 397- Rename ``make_meta_util`` to ``make_meta`` (:pr:`7743`) `GALI PREM SAGAR`_ 398- Repartition before shuffle if the requested partitions are less than input partitions (:pr:`7715`) `Vibhu Jawa`_ 399- Blockwise: handle constant key inputs (:pr:`7734`) `Mads R. B. Kristensen`_ 400- Added raise to ``apply_gufunc`` (:pr:`7744`) `Boaz Mohar`_ 401- Show failing tests summary in CI (:pr:`7735`) `Genevieve Buckley`_ 402- ``sizeof`` sets in Python 3.9 (:pr:`7739`) `Mads R. B. Kristensen`_ 403- Warn if using pandas datetimelike string in ``dataframe.__getitem__`` (:pr:`7749`) `Julia Signell`_ 404- Highlight the ``client.dashboard_link`` (:pr:`7747`) `Genevieve Buckley`_ 405- Easier link for subscribing to the Google calendar (:pr:`7733`) `Genevieve Buckley`_ 406- Automatically show graph visualization in Jupyter notebooks (:pr:`7716`) `Genevieve Buckley`_ 407- Add ``autofunction`` for ``unify_chunks`` in API docs (:pr:`7730`) `James Bourbeau`_ 408 409 4102021.05.1 411--------- 412 413Released on May 28, 2021 414 415- Pandas compatibility (:pr:`7712`) `Julia Signell`_ 416- Fix ``optimize_dataframe_getitem`` bug (:pr:`7698`) `Richard (Rick) Zamora`_ 417- Update ``make_meta`` import in docs (:pr:`7713`) `Benjamin Zaitlen`_ 418- Implement ``da.searchsorted`` (:pr:`7696`) `Tom White`_ 419- Fix format string in error message (:pr:`7706`) `Jiaming Yuan`_ 420- Fix ``read_sql_table`` returning wrong result for single column loads (:pr:`7572`) `c-thiel`_ 421- Add slack join link in ``support.rst`` (:pr:`7679`) `Naty Clementi`_ 422- Remove unused alphabet variable (:pr:`7700`) `James Bourbeau`_ 423- Fix meta creation incase of ``object`` (:pr:`7586`) `GALI PREM SAGAR`_ 424- Add dispatch for ``union_categoricals`` (:pr:`7699`) `GALI PREM SAGAR`_ 425- Consolidate array ``Dispatch`` objects (:pr:`7505`) `James Bourbeau`_ 426- Move DataFrame ``dispatch.registers`` to their own file (:pr:`7503`) `Julia Signell`_ 427- Fix delayed with ``dataclasses`` where ``init=False`` (:pr:`7656`) `Julia Signell`_ 428- Allow a column to be named ``divisions`` (:pr:`7605`) `Julia Signell`_ 429- Stack nd array with unknown chunks (:pr:`7562`) `Chris Roat`_ 430- Promote the 2021 Dask User Survey (:pr:`7694`) `Genevieve Buckley`_ 431- Fix typo in ``DataFrame.set_index()`` (:pr:`7691`) `James Lamb`_ 432- Cleanup array API reference links (:pr:`7684`) `David Hoese`_ 433- Accept ``axis`` tuple for ``flip`` to be consistent with NumPy (:pr:`7675`) `Andrew Champion`_ 434- Bump ``pre-commit`` hook versions (:pr:`7676`) `James Bourbeau`_ 435- Cleanup ``to_zarr`` docstring (:pr:`7683`) `David Hoese`_ 436- Fix the docstring of ``read_orc`` (:pr:`7678`) `keewis`_ 437- Doc ``ipyparallel`` & ``mpi4py`` ``concurrent.futures`` (:pr:`7665`) `John A Kirkham`_ 438- Update tests to support CuPy 9 (:pr:`7671`) `Peter Andreas Entschev`_ 439- Fix some ``HighLevelGraph`` documentation inaccuracies (:pr:`7662`) `Mads R. B. Kristensen`_ 440- Fix spelling in Series ``getitem`` error message (:pr:`7659`) `Maisie Marshall`_ 441 442 4432021.05.0 444--------- 445 446Released on May 14, 2021 447 448- Remove deprecated ``kind`` kwarg to comply with pandas 1.3.0 (:pr:`7653`) `Julia Signell`_ 449- Fix bug in DataFrame column projection (:pr:`7645`) `Richard (Rick) Zamora`_ 450- Merge global annotations when packing (:pr:`7565`) `Mads R. B. Kristensen`_ 451- Avoid ``inplace=`` in pandas ``set_categories`` (:pr:`7633`) `James Bourbeau`_ 452- Change the active-fusion default to ``False`` for Dask-Dataframe (:pr:`7620`) `Richard (Rick) Zamora`_ 453- Array: remove extraneous code from ``RandomState`` (:pr:`7487`) `Gabe Joseph`_ 454- Implement ``str.concat`` when ``others=None`` (:pr:`7623`) `Daniel Mesejo-León`_ 455- Fix ``dask.dataframe`` in sandboxed environments (:pr:`7601`) `Noah D. Brenowitz`_ 456- Support for ``cupyx.scipy.linalg`` (:pr:`7563`) `Benjamin Zaitlen`_ 457- Move ``timeseries`` and daily-stock to ``Blockwise`` (:pr:`7615`) `Richard (Rick) Zamora`_ 458- Fix bugs in broadcast join (:pr:`7617`) `Richard (Rick) Zamora`_ 459- Use ``Blockwise`` for DataFrame IO (parquet, csv, and orc) (:pr:`7415`) `Richard (Rick) Zamora`_ 460- Adding chunk & type information to Dask ``HighLevelGraph`` s (:pr:`7309`) `Genevieve Buckley`_ 461- Add ``pyarrow`` sphinx ``intersphinx_mapping`` (:pr:`7612`) `Ray Bell`_ 462- Remove skip on test freq (:pr:`7608`) `Julia Signell`_ 463- Defaults in ``read_parquet`` parameters (:pr:`7567`) `Ray Bell`_ 464- Remove ``ignore_abc_warning`` (:pr:`7606`) `Julia Signell`_ 465- Harden DataFrame merge between column-selection and index (:pr:`7575`) `Richard (Rick) Zamora`_ 466- Get rid of ``ignore_abc`` decorator (:pr:`7604`) `Julia Signell`_ 467- Remove kwarg validation for bokeh (:pr:`7597`) `Julia Signell`_ 468- Add ``loky`` example (:pr:`7590`) `Naty Clementi`_ 469- Delayed: ``nout`` when arguments become tasks (:pr:`7593`) `Gabe Joseph`_ 470- Update distributed version in mindep CI build (:pr:`7602`) `James Bourbeau`_ 471- Support all or no overlap between partition columns and real columns (:pr:`7541`) `Richard (Rick) Zamora`_ 472 473 4742021.04.1 475--------- 476 477Released on April 23, 2021 478 479- Handle ``Blockwise`` HLG pack/unpack for ``concatenate=True`` (:pr:`7455`) `Richard (Rick) Zamora`_ 480- ``map_partitions``: use tokenized info as name of the ``SubgraphCallable`` (:pr:`7524`) `Mads R. B. Kristensen`_ 481- Using ``tmp_path`` and ``tmpdir`` to avoid temporary files and directories hanging in the repo (:pr:`7592`) `Naty Clementi`_ 482- Contributing to docs (development guide) (:pr:`7591`) `Naty Clementi`_ 483- Add more packages to Python 3.9 CI build (:pr:`7588`) `James Bourbeau`_ 484- Array: Fix NEP-18 dispatching in finalize (:pr:`7508`) `Gabe Joseph`_ 485- Misc fixes for ``numpydoc`` (:pr:`7569`) `Matthias Bussonnier`_ 486- Avoid pandas ``level=`` keyword deprecation (:pr:`7577`) `James Bourbeau`_ 487- Map e.g. ``.repartition(freq="M")`` to ``.repartition(freq="MS")`` (:pr:`7504`) `Ruben van de Geer`_ 488- Remove hash seeding in parallel CI runs (:pr:`7128`) `Elliott Sales de Andrade`_ 489- Add defaults in parameters in ``to_parquet`` (:pr:`7564`) `Ray Bell`_ 490- Simplify transpose axes cleanup (:pr:`7561`) `Julia Signell`_ 491- Make ``ValueError in len(index_names) > 1`` explicit it's using ``fastparquet`` (:pr:`7556`) `Ray Bell`_ 492- Fix ``dict``-column appending for ``pyarrow`` parquet engines (:pr:`7527`) `Richard (Rick) Zamora`_ 493- Add a documentation auto label (:pr:`7560`) `Doug Davis`_ 494- Add ``dask.delayed.Delayed`` to docs so it can be referenced by other sphinx docs (:pr:`7559`) `Doug Davis`_ 495- Fix upstream ``idxmaxmin`` for uneven ``split_every`` (:pr:`7538`) `Julia Signell`_ 496- Make ``normalize_token`` for pandas ``Series``/``DataFrame`` future proof (no direct block access) (:pr:`7318`) `Joris Van den Bossche`_ 497- Redesigned ``__setitem__`` implementation (:pr:`7393`) `David Hassell`_ 498- ``histogram``, ``histogramdd`` improvements (docs; return consistencies) (:pr:`7520`) `Doug Davis`_ 499- Force nightly ``pyarrow`` in the upstream build (:pr:`7530`) `Joris Van den Bossche`_ 500- Fix Configuration Reference (:pr:`7533`) `Benjamin Zaitlen`_ 501- Use ``.to_parquet`` on ``dask.dataframe`` in doc string (:pr:`7528`) `Ray Bell`_ 502- Avoid double ``msgpack`` serialization of HLGs (:pr:`7525`) `Mads R. B. Kristensen`_ 503- Encourage usage of ``yaml.safe_load()`` in configuration doc (:pr:`7529`) `Hristo Georgiev`_ 504- Fix ``reshape`` bug. Add relevant test. Fixes #7171. (:pr:`7523`) `JSKenyon`_ 505- Support ``custom_metadata=`` argument in ``to_parquet`` (:pr:`7359`) `Richard (Rick) Zamora`_ 506- Clean some documentation warnings (:pr:`7518`) `Daniel Mesejo-León`_ 507- Getting rid of more docs warnings (:pr:`7426`) `Julia Signell`_ 508- Added ``product`` (alias of ``prod``) (:pr:`7517`) `Freyam Mehta`_ 509- Fix upstream ``__array_ufunc__`` tests (:pr:`7494`) `Julia Signell`_ 510- Escape from ``map_overlap`` to ``map_blocks`` if depth is zero (:pr:`7481`) `Genevieve Buckley`_ 511- Add ``check_type`` to array ``assert_eq`` (:pr:`7491`) `Julia Signell`_ 512 513 5142021.04.0 515--------- 516 517Released on April 2, 2021 518 519- Adding support for multidimensional histograms with ``dask.array.histogramdd`` (:pr:`7387`) `Doug Davis`_ 520- Update docs on number of threads and workers in default ``LocalCluster`` (:pr:`7497`) `cameron16`_ 521- Add labels automatically when certain files are touched in a PR (:pr:`7506`) `Julia Signell`_ 522- Extract ``ignore_order`` from ``kwargs`` (:pr:`7500`) `GALI PREM SAGAR`_ 523- Only provide installation instructions when distributed is missing (:pr:`7498`) `Matthew Rocklin`_ 524- Start adding ``isort`` (:pr:`7370`) `Julia Signell`_ 525- Add ``ignore_order`` parameter in ``dd.concat`` (:pr:`7473`) `Daniel Mesejo-León`_ 526- Use powers-of-two when displaying RAM (:pr:`7484`) `Guido Imperiale`_ 527- Added License Classifier (:pr:`7485`) `Tom Augspurger`_ 528- Replace conda with mamba (:pr:`7227`) `Guido Imperiale`_ 529- Fix typo in array docs (:pr:`7478`) `James Lamb`_ 530- Use ``concurrent.futures`` in local scheduler (:pr:`6322`) `John A Kirkham`_ 531 532 5332021.03.1 534--------- 535 536Released on March 26, 2021 537 538- Add a dispatch for ``is_categorical_dtype`` to handle non-pandas objects (:pr:`7469`) `brandon-b-miller`_ 539- Use ``multiprocessing.Pool`` in ``test_read_text`` (:pr:`7472`) `John A Kirkham`_ 540- Add missing ``meta`` kwarg to gufunc class (:pr:`7423`) `Peter Andreas Entschev`_ 541- Example for memory-mapped Dask array (:pr:`7380`) `Dieter Weber`_ 542- Fix NumPy upstream failures ``xfail`` pandas and fastparquet failures (:pr:`7441`) `Julia Signell`_ 543- Fix bug in repartition with freq (:pr:`7357`) `Ruben van de Geer`_ 544- Fix ``__array_function__`` dispatching for ``tril``/``triu`` (:pr:`7457`) `Peter Andreas Entschev`_ 545- Use ``concurrent.futures.Executors`` in a few tests (:pr:`7429`) `John A Kirkham`_ 546- Require NumPy >=1.16 (:pr:`7383`) `Guido Imperiale`_ 547- Minor ``sort_values`` housekeeping (:pr:`7462`) `Ryan Williams`_ 548- Ensure natural sort order in parquet part paths (:pr:`7249`) `Ryan Williams`_ 549- Remove global env mutation upon running ``test_config.py`` (:pr:`7464`) `Hristo Georgiev`_ 550- Update NumPy intersphinx URL (:pr:`7460`) `Gabe Joseph`_ 551- Add ``rot90`` (:pr:`7440`) `Trevor Manz`_ 552- Update docs for required package for endpoint (:pr:`7454`) `Nick Vazquez`_ 553- Master -> main in ``slice_array`` docstring (:pr:`7453`) `Gabe Joseph`_ 554- Expand ``dask.utils.is_arraylike`` docstring (:pr:`7445`) `Doug Davis`_ 555- Simplify ``BlockwiseIODeps`` importing (:pr:`7420`) `Richard (Rick) Zamora`_ 556- Update layer annotation packing method (:pr:`7430`) `James Bourbeau`_ 557- Drop duplicate test in ``test_describe_empty`` (:pr:`7431`) `John A Kirkham`_ 558- Add ``Series.dot`` method to dataframe module (:pr:`7236`) `Madhu94`_ 559- Added df ``kurtosis``-method and testing (:pr:`7273`) `Jan Borchmann`_ 560- Avoid quadratic-time performance for HLG culling (:pr:`7403`) `Bruce Merry`_ 561- Temporarily skip problematic ``sparse`` test (:pr:`7421`) `James Bourbeau`_ 562- Update some CI workflow names (:pr:`7422`) `James Bourbeau`_ 563- Fix HDFS test (:pr:`7418`) `Julia Signell`_ 564- Make changelog subtitles match the hierarchy (:pr:`7419`) `Julia Signell`_ 565- Add support for normalize in ``value_counts`` (:pr:`7342`) `Julia Signell`_ 566- Avoid unnecessary imports for HLG Layer unpacking and materialization (:pr:`7381`) `Richard (Rick) Zamora`_ 567- Bincount fix slicing (:pr:`7391`) `Genevieve Buckley`_ 568- Add ``sliding_window_view`` (:pr:`7234`) `Deepak Cherian`_ 569- Fix typo in ``docs/source/develop.rst`` (:pr:`7414`) `Hristo Georgiev`_ 570- Switch documentation builds for PRs to readthedocs (:pr:`7397`) `James Bourbeau`_ 571- Adds ``sort_values`` to dask.DataFrame (:pr:`7286`) `gerrymanoim`_ 572- Pin ``sqlalchemy<1.4.0`` in CI (:pr:`7405`) `James Bourbeau`_ 573- Comment fixes (:pr:`7215`) `Ryan Williams`_ 574- Dead code removal / fixes (:pr:`7388`) `Ryan Williams`_ 575- Use single thread for ``pa.Table.from_pandas`` calls (:pr:`7347`) `Richard (Rick) Zamora`_ 576- Replace ``'container'`` with ``'image'`` (:pr:`7389`) `James Lamb`_ 577- DOC hyperlink repartition (:pr:`7394`) `Ray Bell`_ 578- Pass delimiter to ``fsspec`` in ``bag.read_text`` (:pr:`7349`) `Martin Durant`_ 579- Update ``read_hdf`` default mode to ``"r"`` (:pr:`7039`) `rs9w33`_ 580- Embed literals in ``SubgraphCallable`` when packing ``Blockwise`` (:pr:`7353`) `Mads R. B. Kristensen`_ 581- Update ``test_hdf.py`` to not reuse file handlers (:pr:`7044`) `rs9w33`_ 582- Require additional dependencies: cloudpickle, partd, fsspec, toolz (:pr:`7345`) `Julia Signell`_ 583- Prepare ``Blockwise`` + IO infrastructure (:pr:`7281`) `Richard (Rick) Zamora`_ 584- Remove duplicated imports from ``test_slicing.py`` (:pr:`7365`) `Hristo Georgiev`_ 585- Add test deps for pip development (:pr:`7360`) `Julia Signell`_ 586- Support int slicing for non-NumPy arrays (:pr:`7364`) `Peter Andreas Entschev`_ 587- Automatically cancel previous CI builds (:pr:`7348`) `James Bourbeau`_ 588- ``dask.array.asarray`` should handle case where ``xarray`` class is in top-level namespace (:pr:`7335`) `Tom White`_ 589- ``HighLevelGraph`` length without materializing layers (:pr:`7274`) `Gabe Joseph`_ 590- Drop support for Python 3.6 (:pr:`7006`) `James Bourbeau`_ 591- Fix fsspec usage in ``create_metadata_file`` (:pr:`7295`) `Richard (Rick) Zamora`_ 592- Change default branch from master to main (:pr:`7198`) `Julia Signell`_ 593- Add Xarray to CI software environment (:pr:`7338`) `James Bourbeau`_ 594- Update repartition argument name in error text (:pr:`7336`) `Eoin Shanaghy`_ 595- Run upstream tests based on commit message (:pr:`7329`) `James Bourbeau`_ 596- Use ``pytest.register_assert_rewrite`` on util modules (:pr:`7278`) `Bruce Merry`_ 597- Add example on using specific chunk sizes in ``from_array()`` (:pr:`7330`) `James Lamb`_ 598- Move NumPy skip into test (:pr:`7247`) `Julia Signell`_ 599 600 6012021.03.0 602--------- 603 604Released on March 5, 2021 605 606.. note:: 607 608 This is the first release with support for Python 3.9 and the 609 last release with support for Python 3.6 610 611- Bump minimum version of ``distributed`` (:pr:`7328`) `James Bourbeau`_ 612- Fix ``percentiles_summary`` with ``dask_cudf`` (:pr:`7325`) `Peter Andreas Entschev`_ 613- Temporarily revert recent ``Array.__setitem__`` updates (:pr:`7326`) `James Bourbeau`_ 614- ``Blockwise.clone`` (:pr:`7312`) `Guido Imperiale`_ 615- NEP-35 duck array update (:pr:`7321`) `James Bourbeau`_ 616- Don't allow setting ``.name`` for array (:pr:`7222`) `Julia Signell`_ 617- Use nearest interpolation for creating percentiles of integer input (:pr:`7305`) `Kyle Barron`_ 618- Test ``exp`` with CuPy arrays (:pr:`7322`) `John A Kirkham`_ 619- Check that computed chunks have right size and dtype (:pr:`7277`) `Bruce Merry`_ 620- ``pytest.mark.flaky`` (:pr:`7319`) `Guido Imperiale`_ 621- Contributing docs: add note to pull the latest git tags before pip installing Dask (:pr:`7308`) `Genevieve Buckley`_ 622- Support for Python 3.9 (:pr:`7289`) `Guido Imperiale`_ 623- Add broadcast-based merge implementation (:pr:`7143`) `Richard (Rick) Zamora`_ 624- Add ``split_every`` to ``graph_manipulation`` (:pr:`7282`) `Guido Imperiale`_ 625- Typo in optimize docs (:pr:`7306`) `Julius Busecke`_ 626- ``dask.graph_manipulation`` support for ``xarray.Dataset`` (:pr:`7276`) `Guido Imperiale`_ 627- Add plot width and height support for Bokeh 2.3.0 (:pr:`7297`) `James Bourbeau`_ 628- Add NumPy functions ``tri``, ``triu_indices``, ``triu_indices_from``, ``tril_indices``, ``tril_indices_from`` (:pr:`6997`) `Illviljan`_ 629- Remove "cleanup" task in DataFrame on-disk shuffle (:pr:`7260`) `Sinclair Target`_ 630- Use development version of ``distributed`` in CI (:pr:`7279`) `James Bourbeau`_ 631- Moving high level graph pack/unpack Dask (:pr:`7179`) `Mads R. B. Kristensen`_ 632- Improve performance of ``merge_percentiles`` (:pr:`7172`) `Ashwin Srinath`_ 633- DOC: add ``dask-sql`` and ``fugue`` (:pr:`7129`) `Ray Bell`_ 634- Example for working with categoricals and parquet (:pr:`7085`) `McToel`_ 635- Adds tree reduction to ``bincount`` (:pr:`7183`) `Thomas J. Fan`_ 636- Improve documentation of ``name`` in ``from_array`` (:pr:`7264`) `Bruce Merry`_ 637- Fix ``cumsum`` for empty partitions (:pr:`7230`) `Julia Signell`_ 638- Add ``map_blocks`` example to dask array creation docs (:pr:`7221`) `Julia Signell`_ 639- Fix performance issue in ``dask.graph_manipulation.wait_on()`` (:pr:`7258`) `Guido Imperiale`_ 640- Replace coveralls with codecov.io (:pr:`7246`) `Guido Imperiale`_ 641- Pin to a particular ``black`` rev in pre-commit (:pr:`7256`) `Julia Signell`_ 642- Minor typo in documentation: ``array-chunks.rst`` (:pr:`7254`) `Magnus Nord`_ 643- Fix bugs in ``Blockwise`` and ``ShuffleLayer`` (:pr:`7213`) `Richard (Rick) Zamora`_ 644- Fix parquet filtering bug for ``"pyarrow-dataset"`` with pyarrow-3.0.0 (:pr:`7200`) `Richard (Rick) Zamora`_ 645- ``graph_manipulation`` without NumPy (:pr:`7243`) `Guido Imperiale`_ 646- Support for NEP-35 (:pr:`6738`) `Peter Andreas Entschev`_ 647- Avoid running unit tests during doctest CI build (:pr:`7240`) `James Bourbeau`_ 648- Run doctests on CI (:pr:`7238`) `Julia Signell`_ 649- Cleanup code quality on set arithmetics (:pr:`7196`) `Guido Imperiale`_ 650- Add ``dask.array.delete`` (:pr:`7125`) `Julia Signell`_ 651- Unpin graphviz now that new conda-forge recipe is built (:pr:`7235`) `Julia Signell`_ 652- Don't use NumPy 1.20 from conda-forge on Mac (:pr:`7211`) `Guido Imperiale`_ 653- ``map_overlap``: Don't rechunk axes without overlap (:pr:`7233`) `Deepak Cherian`_ 654- Pin graphviz to avoid issue with latest conda-forge build (:pr:`7232`) `Julia Signell`_ 655- Use ``html_css_files`` in docs for custom CSS (:pr:`7220`) `James Bourbeau`_ 656- Graph manipulation: ``clone``, ``bind``, ``checkpoint``, ``wait_on`` (:pr:`7109`) `Guido Imperiale`_ 657- Fix handling of filter expressions in parquet ``pyarrow-dataset`` engine (:pr:`7186`) `Joris Van den Bossche`_ 658- Extend ``__setitem__`` to more closely match numpy (:pr:`7033`) `David Hassell`_ 659- Clean up Python 2 syntax (:pr:`7195`) `Guido Imperiale`_ 660- Fix regression in ``Delayed._length`` (:pr:`7194`) `Guido Imperiale`_ 661- ``__dask_layers__()`` tests and tweaks (:pr:`7177`) `Guido Imperiale`_ 662- Properly convert ``HighLevelGraph`` in multiprocessing scheduler (:pr:`7191`) `Jim Crist-Harif`_ 663- Don't fail fast in CI (:pr:`7188`) `James Bourbeau`_ 664 665 6662021.02.0 667--------- 668 669Released on February 5, 2021 670 671- Add ``percentile`` support for NEP-35 (:pr:`7162`) `Peter Andreas Entschev`_ 672- Added support for ``Float64`` in column assignment (:pr:`7173`) `Nils Braun`_ 673- Coarsen rechunking error (:pr:`7127`) `Davis Bennett`_ 674- Fix upstream CI tests (:pr:`6896`) `Julia Signell`_ 675- Revise ``HighLevelGraph`` Mapping API (:pr:`7160`) `Guido Imperiale`_ 676- Update low-level graph spec to use any hashable for keys (:pr:`7163`) `James Bourbeau`_ 677- Generically rebuild a collection with different keys (:pr:`7142`) `Guido Imperiale`_ 678- Make easier to link issues in PRs (:pr:`7130`) `Ray Bell`_ 679- Add ``dask.array.append`` (:pr:`7146`) `D-Stacks`_ 680- Allow ``dask.array.ravel`` to accept ``array_like`` argument (:pr:`7138`) `D-Stacks`_ 681- Fixes link in array design doc (:pr:`7152`) `Thomas J. Fan`_ 682- Fix example of using ``blockwise`` for an outer product (:pr:`7119`) `Bruce Merry`_ 683- Deprecate ``HighlevelGraph.dicts`` in favor of ``.layers`` (:pr:`7145`) `Amit Kumar`_ 684- Align ``FastParquetEngine`` with pyarrow engines (:pr:`7091`) `Richard (Rick) Zamora`_ 685- Merge annotations (:pr:`7102`) `Ian Rose`_ 686- Simplify contents of parts list in ``read_parquet`` (:pr:`7066`) `Richard (Rick) Zamora`_ 687- ``check_meta(``): use ``__class__`` when checking DataFrame types (:pr:`7099`) `Mads R. B. Kristensen`_ 688- Cache several properties (:pr:`7104`) `Illviljan`_ 689- Fix parquet ``getitem`` optimization (:pr:`7106`) `Richard (Rick) Zamora`_ 690- Add cytoolz back to CI environment (:pr:`7103`) `James Bourbeau`_ 691 692 6932021.01.1 694--------- 695 696Released on January 22, 2021 697 698- Partially fix ``cumprod`` (:pr:`7089`) `Julia Signell`_ 699- Test pandas 1.1.x / 1.2.0 releases and pandas nightly (:pr:`6996`) `Joris Van den Bossche`_ 700- Use assign to avoid ``SettingWithCopyWarning`` (:pr:`7092`) `Julia Signell`_ 701- ``'mode'`` argument passed to ``bokeh.output_file()`` (:pr:`7034`) (:pr:`7075`) `patquem`_ 702- Skip empty partitions when doing ``groupby.value_counts`` (:pr:`7073`) `Julia Signell`_ 703- Add error messages to ``assert_eq()`` (:pr:`7083`) `James Lamb`_ 704- Make cached properties read-only (:pr:`7077`) `Illviljan`_ 705 706 7072021.01.0 708--------- 709 710Released on January 15, 2021 711 712- ``map_partitions`` with review comments (:pr:`6776`) `Kumar Bharath Prabhu`_ 713- Make sure that ``population`` is a real list (:pr:`7027`) `Julia Signell`_ 714- Propagate ``storage_options`` in ``read_csv`` (:pr:`7074`) `Richard (Rick) Zamora`_ 715- Remove all ``BlockwiseIO`` code (:pr:`7067`) `Richard (Rick) Zamora`_ 716- Fix CI (:pr:`7069`) `James Bourbeau`_ 717- Add option to control rechunking in ``reshape`` (:pr:`6753`) `Tom Augspurger`_ 718- Fix ``linalg.lstsq`` for complex inputs (:pr:`7056`) `Johnnie Gray`_ 719- Add ``compression='infer'`` default to ``read_csv`` (:pr:`6960`) `Richard (Rick) Zamora`_ 720- Revert parameter changes in ``svd_compressed`` #7003 (:pr:`7004`) `Eric Czech`_ 721- Skip failing s3 test (:pr:`7064`) `Martin Durant`_ 722- Revert ``BlockwiseIO`` (:pr:`7048`) `Richard (Rick) Zamora`_ 723- Add some cross-references to ``DataFrame.to_bag()`` and ``Series.to_bag()`` (:pr:`7049`) `Rob Malouf`_ 724- Rewrite ``matmul`` as ``blockwise`` without contraction/concatenate (:pr:`7000`) `Rafal Wojdyla`_ 725- Use ``functools.cached_property`` in ``da.shape`` (:pr:`7023`) `Illviljan`_ 726- Use meta value in series ``non_empty`` (:pr:`6976`) `Julia Signell`_ 727- Revert "Temporarly pin sphinx version to 3.3.1 (:pr:`7002`)" (:pr:`7014`) `Rafal Wojdyla`_ 728- Revert ``python-graphviz`` pinning (:pr:`7037`) `Julia Signell`_ 729- Accidentally committed print statement (:pr:`7038`) `Julia Signell`_ 730- Pass ``dropna`` and ``observed`` in ``agg`` (:pr:`6992`) `Julia Signell`_ 731- Add index to ``meta`` after ``.str.split`` with expand (:pr:`7026`) `Ruben van de Geer`_ 732- CI: test pyarrow 2.0 and nightly (:pr:`7030`) `Joris Van den Bossche`_ 733- Temporarily pin ``python-graphviz`` in CI (:pr:`7031`) `James Bourbeau`_ 734- Underline section in ``numpydoc`` (:pr:`7013`) `Matthias Bussonnier`_ 735- Keep normal optimizations when adding custom optimizations (:pr:`7016`) `Matthew Rocklin`_ 736- Temporarily pin sphinx version to 3.3.1 (:pr:`7002`) `Rafal Wojdyla`_ 737- DOC: Misc formatting (:pr:`6998`) `Matthias Bussonnier`_ 738- Add ``inline_array`` option to ``from_array`` (:pr:`6773`) `Tom Augspurger`_ 739- Revert "Initial pass at blockwise array creation routines (:pr:`6931)" (:pr:`6995`) `James Bourbeau`_ 740- Set ``npartitions`` in ``set_index`` (:pr:`6978`) `Julia Signell`_ 741- Upstream ``config`` serialization and inheritance (:pr:`6987`) `Jacob Tomlinson`_ 742- Bump the minimum time in ``test_minimum_time`` (:pr:`6988`) `Martin Durant`_ 743- Fix pandas ``dtype`` inference for ``read_parquet`` (:pr:`6985`) `Richard (Rick) Zamora`_ 744- Avoid data loss in ``set_index`` with ``sorted=True`` (:pr:`6980`) `Richard (Rick) Zamora`_ 745- Bugfix in ``read_parquet`` for handling un-named indices with ``index=False`` (:pr:`6969`) `Richard (Rick) Zamora`_ 746- Use ``__class__`` when comparing meta data (:pr:`6981`) `Mads R. B. Kristensen`_ 747- Comparing string versions won't always work (:pr:`6979`) `Rafal Wojdyla`_ 748- Fix :pr:`6925` (:pr:`6982`) `sdementen`_ 749- Initial pass at blockwise array creation routines (:pr:`6931`) `Ian Rose`_ 750- Simplify ``has_parallel_type()`` (:pr:`6927`) `Mads R. B. Kristensen`_ 751- Handle annotation unpacking in ``BlockwiseIO`` (:pr:`6934`) `Simon Perkins`_ 752- Avoid deprecated ``yield_fixture`` in ``test_sql.py`` (:pr:`6968`) `Richard (Rick) Zamora`_ 753- Remove bad graph logic in ``BlockwiseIO`` (:pr:`6933`) `Richard (Rick) Zamora`_ 754- Get config item if variable is ``None`` (:pr:`6862`) `Jacob Tomlinson`_ 755- Update ``from_pandas`` docstring (:pr:`6957`) `Richard (Rick) Zamora`_ 756- Prevent ``fuse_roots`` from clobbering annotations (:pr:`6955`) `Simon Perkins`_ 757 758 7592020.12.0 760--------- 761 762Released on December 10, 2020 763 764Highlights 765^^^^^^^^^^ 766 767- Switched to `CalVer <https://calver.org/>`_ for versioning scheme. 768- Introduced new APIs for ``HighLevelGraph`` to enable sending high-level representations of 769 task graphs to the distributed scheduler. 770- Introduced new ``HighLevelGraph`` layer objects including ``BasicLayer``, ``Blockwise``, 771 ``BlockwiseIO``, ``ShuffleLayer``, and more. 772- Added support for applying custom ``Layer``-level annotations like ``priority``, ``retries``, 773 etc. with the ``dask.annotations`` context manager. 774- Updated minimum supported version of pandas to 0.25.0 and NumPy to 1.15.1. 775- Support for the ``pyarrow.dataset`` API to ``read_parquet``. 776- Several fixes to Dask Array's SVD. 777 778All changes 779^^^^^^^^^^^ 780 781- Make ``observed`` kwarg optional (:pr:`6952`) `Julia Signell`_ 782- Min supported pandas 0.25.0 numpy 1.15.1 (:pr:`6895`) `Julia Signell`_ 783- Make order of categoricals unambiguous (:pr:`6949`) `Julia Signell`_ 784- Improve "pyarrow-dataset" statistics performance for ``read_parquet`` (:pr:`6918`) `Richard (Rick) Zamora`_ 785- Add ``observed`` keyword to ``groupby`` (:pr:`6854`) `Julia Signell`_ 786- Make sure ``include_path_column`` works when there are multiple partitions per file (:pr:`6911`) `Julia Signell`_ 787- Fix: ``array.overlap`` and ``array.map_overlap`` block sizes are incorrect when depth is an unsigned bit type (:pr:`6909`) `GFleishman`_ 788- Fix syntax error in HLG docs example (:pr:`6946`) `Mark`_ 789- Return a ``Bag`` from ``sample`` (:pr:`6941`) `Shang Wang`_ 790- Add ``ravel_multi_index`` (:pr:`6939`) `Illviljan`_ 791- Enable parquet metadata collection in parallel (:pr:`6921`) `Richard (Rick) Zamora`_ 792- Avoid using ``_file`` in ``progressbar`` if it is ``None`` (:pr:`6938`) `Mark Harfouche`_ 793- Add Zarr to upstream CI build (:pr:`6932`) `James Bourbeau`_ 794- Introduce ``BlockwiseIO`` layer (:pr:`6878`) `Richard (Rick) Zamora`_ 795- Transmit ``Layer`` Annotations to Scheduler (:pr:`6889`) `Simon Perkins`_ 796- Update opportunistic caching page to remove experimental warning (:pr:`6926`) `Timost`_ 797- Allow ``pyarrow >2.0.0`` (:pr:`6772`) `Richard (Rick) Zamora`_ 798- Support ``pyarrow.dataset`` API for ``read_parquet`` (:pr:`6534`) `Richard (Rick) Zamora`_ 799- Add more informative error message to ``da.coarsen`` when coarsening factors do not divide shape (:pr:`6908`) `Davis Bennett`_ 800- Only run the cron CI on ``dask/dask`` not forks (:pr:`6905`) `Jacob Tomlinson`_ 801- Add ``annotations`` to ``ShuffleLayers`` (:pr:`6913`) `Matthew Rocklin`_ 802- Temporarily xfail ``test_from_s3`` (:pr:`6915`) `James Bourbeau`_ 803- Added dataframe ``skew`` method (:pr:`6881`) `Jan Borchmann`_ 804- Fix ``dtype`` in array ``meta`` (:pr:`6893`) `Julia Signell`_ 805- Missing ``name`` arg in ``helm install ...`` (:pr:`6903`) `Ruben van de Geer`_ 806- Fix: exception when reading an item with filters (:pr:`6901`) `Martin Durant`_ 807- Add support for ``cupyx`` sparse to ``dask.array.dot`` (:pr:`6846`) `Akira Naruse`_ 808- Pin array mindeps up a bit to get the tests to pass [test-mindeps] (:pr:`6894`) `Julia Signell`_ 809- Update/remove pandas and numpy in mindeps (:pr:`6888`) `Julia Signell`_ 810- Fix ``ArrowEngine`` bug in use of ``clear_known_categories`` (:pr:`6887`) `Richard (Rick) Zamora`_ 811- Fix documentation about task scheduler (:pr:`6879`) `Zhengnan Zhao`_ 812- Add human relative time formatting utility (:pr:`6883`) `Jacob Tomlinson`_ 813- Possible fix for 6864 ``set_index`` issue (:pr:`6866`) `Richard (Rick) Zamora`_ 814- ``BasicLayer``: remove dependency arguments (:pr:`6859`) `Mads R. B. Kristensen`_ 815- Serialization of ``Blockwise`` (:pr:`6848`) `Mads R. B. Kristensen`_ 816- Address ``columns=[]`` bug (:pr:`6871`) `Richard (Rick) Zamora`_ 817- Avoid duplicate parquet schema communication (:pr:`6841`) `Richard (Rick) Zamora`_ 818- Add ``create_metadata_file`` utility for existing parquet datasets (:pr:`6851`) `Richard (Rick) Zamora`_ 819- Improve ordering for workloads with a common terminus (:pr:`6779`) `Tom Augspurger`_ 820- Stringify utilities (:pr:`6852`) `Mads R. B. Kristensen`_ 821- Add keyword ``overwrite=True`` to ``to_parquet`` to remove dangling files when overwriting a pyarrow ``Dataset``. (:pr:`6825`) `Greg Hayes`_ 822- Removed ``map_tasks()`` and ``map_basic_layers()`` (:pr:`6853`) `Mads R. B. Kristensen`_ 823- Introduce QR iteration to ``svd_compressed`` (:pr:`6813`) `RogerMoens`_ 824- ``__dask_distributed_pack__()`` now takes a ``client`` argument (:pr:`6850`) `Mads R. B. Kristensen`_ 825- Use ``map_partitions`` instead of ``delayed`` in ``set_index`` (:pr:`6837`) `Mads R. B. Kristensen`_ 826- Add doc hit for ``as_completed().update(futures)`` (:pr:`6817`) `manuels`_ 827- Bump GHA ``setup-miniconda`` version (:pr:`6847`) `Jacob Tomlinson`_ 828- Remove nans when setting sorted index (:pr:`6829`) `Rockwell Weiner`_ 829- Fix transpose of u in SVD (:pr:`6799`) `RogerMoens`_ 830- Migrate to GitHub Actions (:pr:`6794`) `Jacob Tomlinson`_ 831- Fix sphinx ``currentmodule`` usage (:pr:`6839`) `James Bourbeau`_ 832- Fix minimum dependencies CI builds (:pr:`6838`) `James Bourbeau`_ 833- Avoid graph materialization during ``Blockwise`` culling (:pr:`6815`) `Richard (Rick) Zamora`_ 834- Fixed typo (:pr:`6834`) `Devanshu Desai`_ 835- Use ``HighLevelGraph.merge`` in ``collections_to_dsk`` (:pr:`6836`) `Mads R. B. Kristensen`_ 836- Respect ``dtype`` in svd ``compression_matrix`` #2849 (:pr:`6802`) `RogerMoens`_ 837- Add blocksize to task name (:pr:`6818`) `Julia Signell`_ 838- Check for all-NaN partitions (:pr:`6821`) `Rockwell Weiner`_ 839- Change "institutional" SQL doc section to point to main SQL doc (:pr:`6823`) `Martin Durant`_ 840- Fix: ``DataFrame.join`` doesn't accept Series as other (:pr:`6809`) `David Katz`_ 841- Remove ``to_delayed`` operations from ``to_parquet`` (:pr:`6801`) `Richard (Rick) Zamora`_ 842- Layer annotation docstrings improvements (:pr:`6806`) `Simon Perkins`_ 843- Avro reader (:pr:`6780`) `Martin Durant`_ 844- Rechunk array if smallest chunk size is smaller than depth (:pr:`6708`) `Julia Signell`_ 845- Add Layer Annotations (:pr:`6767`) `Simon Perkins`_ 846- Add "view code" links to documentation (:pr:`6793`) `manuels`_ 847- Add optional IO-subgraph to ``Blockwise`` Layers (:pr:`6715`) `Richard (Rick) Zamora`_ 848- Add high level graph pack/unpack for distributed (:pr:`6786`) `Mads R. B. Kristensen`_ 849- Add missing methods of the Dataframe API (:pr:`6789`) `Stephannie Jimenez Gacha`_ 850- Add doc on managing environments (:pr:`6778`) `Martin Durant`_ 851- HLG: ``get_all_external_keys()`` (:pr:`6774`) `Mads R. B. Kristensen`_ 852- Avoid rechunking in reshape with ``chunksize=1`` (:pr:`6748`) `Tom Augspurger`_ 853- Try to make categoricals work on join (:pr:`6205`) `Julia Signell`_ 854- Fix some minor typos and trailing whitespaces in ``array-slice.rst`` (:pr:`6771`) `Magnus Nord`_ 855- Bugfix for parquet metadata writes of empty dataframe partitions (pyarrow) (:pr:`6741`) `Callum Noble`_ 856- Document ``meta`` kwarg in ``map_blocks`` and ``map_overlap``. (:pr:`6763`) `Peter Andreas Entschev`_ 857- Begin experimenting with parallel prefix scan for ``cumsum`` and ``cumprod`` (:pr:`6675`) `Erik Welch`_ 858- Clarify differences in boolean indexing between dask and numpy arrays (:pr:`6764`) `Illviljan`_ 859- Efficient serialization of shuffle layers (:pr:`6760`) `James Bourbeau`_ 860- Config array optimize to skip fusion and return a HLG (:pr:`6751`) `Mads R. B. Kristensen`_ 861- Temporarily use ``pyarrow<2`` in CI (:pr:`6759`) `James Bourbeau`_ 862- Fix meta for ``min``/``max`` reductions (:pr:`6736`) `Peter Andreas Entschev`_ 863- Add 2D possibility to ``da.linalg.lstsq`` - mirroring numpy (:pr:`6749`) `Pascal Bourgault`_ 864- CI: Fixed bug causing flaky test failure in pivot (:pr:`6752`) `Tom Augspurger`_ 865- Serialization of layers (:pr:`6693`) `Mads R. B. Kristensen`_ 866- Add ``attrs`` property to Series/Dataframe (:pr:`6742`) `Illviljan`_ 867- Removed Mutable Default Argument (:pr:`6747`) `Mads R. B. Kristensen`_ 868- Adjust parquet ``ArrowEngine`` to allow more easy subclass for writing (:pr:`6505`) `Joris Van den Bossche`_ 869- Add ``ShuffleStage`` HLG Layer (:pr:`6650`) `Richard (Rick) Zamora`_ 870- Handle literal in ``meta_from_array`` (:pr:`6731`) `Peter Andreas Entschev`_ 871- Do balanced rechunking even if chunks are the same (:pr:`6735`) `Chris Roat`_ 872- Fix docstring ``DataFrame.set_index`` (:pr:`6739`) `Gil Forsyth`_ 873- Ensure ``HighLevelGraph`` layers always contain ``Layer`` instances (:pr:`6716`) `James Bourbeau`_ 874- Map on ``HighLevelGraph`` Layers (:pr:`6689`) `Mads R. B. Kristensen`_ 875- Update overlap ``*_like`` function calls and CuPy tests (:pr:`6728`) `Peter Andreas Entschev`_ 876- Fixes for ``svd`` with ``__array_function__`` (:pr:`6727`) `Peter Andreas Entschev`_ 877- Added doctest extension for documentation (:pr:`6397`) `Jim Circadian`_ 878- Minor fix to #5628 using @pentschev's suggestion (:pr:`6724`) `John A Kirkham`_ 879- Change type of Dask array when meta type changes (:pr:`5628`) `Matthew Rocklin`_ 880- Add ``az`` (:pr:`6719`) `Ray Bell`_ 881- HLG: ``get_dependencies()`` of single keys (:pr:`6699`) `Mads R. B. Kristensen`_ 882- Revert "Revert "Use HighLevelGraph layers everywhere in collections (:pr:`6510`)" (:pr:`6697`)" (:pr:`6707`) `Tom Augspurger`_ 883- Allow ``*_like`` array creation functions to respect input array type (:pr:`6680`) `Genevieve Buckley`_ 884- Update ``dask-sphinx-theme`` version (:pr:`6700`) `Gil Forsyth`_ 885 886 8872.30.0 / 2020-10-06 888------------------- 889 890Array 891^^^^^ 892 893- Allow ``rechunk`` to evenly split into N chunks (:pr:`6420`) `Scott Sievert`_ 894 895 8962.29.0 / 2020-10-02 897------------------- 898 899Array 900^^^^^ 901 902- ``_repr_html_``: color sides darker instead of drawing all the lines (:pr:`6683`) `Julia Signell`_ 903- Removes warning from ``nanstd`` and ``nanvar`` (:pr:`6667`) `Thomas J. Fan`_ 904- Get shape of output from original array - ``map_overlap`` (:pr:`6682`) `Julia Signell`_ 905- Replace ``np.searchsorted`` with ``bisect`` in indexing (:pr:`6669`) `Joachim B Haga`_ 906 907Bag 908^^^ 909 910- Make sure subprocesses have a consistent hash for bag ``groupby`` (:pr:`6660`) `Itamar Turner-Trauring`_ 911 912Core 913^^^^ 914 915- Revert "Use ``HighLevelGraph`` layers everywhere in collections (:pr:`6510`)" (:pr:`6697`) `Tom Augspurger`_ 916- Use ``pandas.testing`` (:pr:`6687`) `John A Kirkham`_ 917- Improve 128-bit floating-point skip in tests (:pr:`6676`) `Elliott Sales de Andrade`_ 918 919DataFrame 920^^^^^^^^^ 921 922- Allow setting dataframe items using a bool dataframe (:pr:`6608`) `Julia Signell`_ 923 924Documentation 925^^^^^^^^^^^^^ 926 927- Fix typo (:pr:`6692`) `garanews`_ 928- Fix a few typos (:pr:`6678`) `Pav A`_ 929 930 9312.28.0 / 2020-09-25 932------------------- 933 934Array 935^^^^^ 936 937- Partially reverted changes to ``Array`` indexing that produces large changes. 938 This restores the behavior from Dask 2.25.0 and earlier, with a warning 939 when large chunks are produced. A configuration option is provided 940 to avoid creating the large chunks, see :ref:`array.slicing.efficiency`. 941 (:pr:`6665`) `Tom Augspurger`_ 942- Add ``meta`` to ``to_dask_array`` (:pr:`6651`) `Kyle Nicholson`_ 943- Fix :pr:`6631` and :pr:`6611` (:pr:`6632`) `Rafal Wojdyla`_ 944- Infer object in array reductions (:pr:`6629`) `Daniel Saxton`_ 945- Adding ``v_based`` flag for ``svd_flip`` (:pr:`6658`) `Eric Czech`_ 946- Fix flakey array ``mean`` (:pr:`6656`) `Sam Grayson`_ 947 948Core 949^^^^ 950 951- Removed ``dsk`` equality check from ``SubgraphCallable.__eq__`` (:pr:`6666`) `Mads R. B. Kristensen`_ 952- Use ``HighLevelGraph`` layers everywhere in collections (:pr:`6510`) `Mads R. B. Kristensen`_ 953- Adds hash dunder method to ``SubgraphCallable`` for caching purposes (:pr:`6424`) `Andrew Fulton`_ 954- Stop writing commented out config files by default (:pr:`6647`) `Matthew Rocklin`_ 955 956DataFrame 957^^^^^^^^^ 958 959- Add support for collect list aggregation via ``agg`` API (:pr:`6655`) `Madhur Tandon`_ 960- Slightly better error message (:pr:`6657`) `Julia Signell`_ 961 962 9632.27.0 / 2020-09-18 964------------------- 965 966Array 967^^^^^ 968 969- Preserve ``dtype`` in ``svd`` (:pr:`6643`) `Eric Czech`_ 970 971Core 972^^^^ 973 974- ``store()``: create a single HLG layer (:pr:`6601`) `Mads R. B. Kristensen`_ 975- Add pre-commit CI build (:pr:`6645`) `James Bourbeau`_ 976- Update ``.pre-commit-config`` to latest black. (:pr:`6641`) `Julia Signell`_ 977- Update super usage to remove Python 2 compatibility (:pr:`6630`) `Poruri Sai Rahul`_ 978- Remove u string prefixes (:pr:`6633`) `Poruri Sai Rahul`_ 979 980DataFrame 981^^^^^^^^^ 982 983- Improve error message for ``to_sql`` (:pr:`6638`) `Julia Signell`_ 984- Use empty list as categories (:pr:`6626`) `Julia Signell`_ 985 986Documentation 987^^^^^^^^^^^^^ 988 989- Add ``autofunction`` to array api docs for more ufuncs (:pr:`6644`) `James Bourbeau`_ 990- Add a number of missing ufuncs to ``dask.array`` docs (:pr:`6642`) `Ralf Gommers`_ 991- Add ``HelmCluster`` docs (:pr:`6290`) `Jacob Tomlinson`_ 992 993 9942.26.0 / 2020-09-11 995------------------- 996 997Array 998^^^^^ 999 1000- Backend-aware dtype inference for single-chunk svd (:pr:`6623`) `Eric Czech`_ 1001- Make ``array.reduction`` docstring match for dtype (:pr:`6624`) `Martin Durant`_ 1002- Set lower bound on compression level for ``svd_compressed`` using rows and cols (:pr:`6622`) `Eric Czech`_ 1003- Improve SVD consistency and small array handling (:pr:`6616`) `Eric Czech`_ 1004- Add ``svd_flip`` #6599 (:pr:`6613`) `Eric Czech`_ 1005- Handle sequences containing dask Arrays (:pr:`6595`) `Gabe Joseph`_ 1006- Avoid large chunks from ``getitem`` with lists (:pr:`6514`) `Tom Augspurger`_ 1007- Eagerly slice numpy arrays in ``from_array`` (:pr:`6605`) `Deepak Cherian`_ 1008- Restore ability to pickle dask arrays (:pr:`6594`) `Noah D. Brenowitz`_ 1009- Add SVD support for short-and-fat arrays (:pr:`6591`) `Eric Czech`_ 1010- Add simple chunk type registry and defer as appropriate to upcast types (:pr:`6393`) `Jon Thielen`_ 1011- Align coarsen chunks by default (:pr:`6580`) `Deepak Cherian`_ 1012- Fixup reshape on unknown dimensions and other testing fixes (:pr:`6578`) `Ryan Williams`_ 1013 1014Core 1015^^^^ 1016 1017- Add validation and fixes for ``HighLevelGraph`` dependencies (:pr:`6588`) `Mads R. B. Kristensen`_ 1018- Fix linting issue (:pr:`6598`) `Tom Augspurger`_ 1019- Skip ``bokeh`` version 2.0.0 (:pr:`6572`) `John A Kirkham`_ 1020 1021DataFrame 1022^^^^^^^^^ 1023 1024- Added bytes/row calculation when using meta (:pr:`6585`) `McToel`_ 1025- Handle ``min_count`` in ``Series.sum`` / ``prod`` (:pr:`6618`) `Daniel Saxton`_ 1026- Update ``DataFrame.set_index`` docstring (:pr:`6549`) `Timost`_ 1027- Always compute 0 and 1 quantiles during quantile calculations (:pr:`6564`) `Erik Welch`_ 1028- Fix wrong path when reading empty csv file (:pr:`6573`) `Abdulelah Bin Mahfoodh`_ 1029 1030Documentation 1031^^^^^^^^^^^^^ 1032 1033- Doc: Troubleshooting dashboard 404 (:pr:`6215`) `Kilian Lieret`_ 1034- Fixup ``extraConfig`` example (:pr:`6625`) `Tom Augspurger`_ 1035- Update supported Python versions (:pr:`6609`) `Julia Signell`_ 1036- Document dask/daskhub helm chart (:pr:`6560`) `Tom Augspurger`_ 1037 1038 10392.25.0 / 2020-08-28 1040------------------- 1041 1042Core 1043^^^^ 1044 1045- Compare key hashes in ``subs()`` (:pr:`6559`) `Mads R. B. Kristensen`_ 1046- Rerun with latest ``black`` release (:pr:`6568`) `James Bourbeau`_ 1047- License update (:pr:`6554`) `Tom Augspurger`_ 1048 1049DataFrame 1050^^^^^^^^^ 1051 1052- Add gs ``read_parquet`` example (:pr:`6548`) `Ray Bell`_ 1053 1054Documentation 1055^^^^^^^^^^^^^ 1056 1057- Remove version from documentation page names (:pr:`6558`) `James Bourbeau`_ 1058- Update ``kubernetes-helm.rst`` (:pr:`6523`) `David Sheldon`_ 1059- Stop 2020 survey (:pr:`6547`) `Tom Augspurger`_ 1060 1061 10622.24.0 / 2020-08-22 1063------------------- 1064 1065Array 1066^^^^^ 1067 1068- Fix setting random seed in tests. (:pr:`6518`) `Elliott Sales de Andrade`_ 1069- Support meta in apply gufunc (:pr:`6521`) `joshreback`_ 1070- Replace `cupy.sparse` with `cupyx.scipy.sparse` (:pr:`6530`) `John A Kirkham`_ 1071 1072Dataframe 1073^^^^^^^^^ 1074 1075- Bump up tolerance for rolling tests (:pr:`6502`) `Julia Signell`_ 1076- Implement DatFrame.__len__ (:pr:`6515`) `Tom Augspurger`_ 1077- Infer arrow schema in to_parquet (for ArrowEngine`) (:pr:`6490`) `Richard (Rick) Zamora`_ 1078- Fix parquet test when no pyarrow (:pr:`6524`) `Martin Durant`_ 1079- Remove problematic ``filter`` arguments in ArrowEngine (:pr:`6527`) `Richard (Rick) Zamora`_ 1080- Avoid schema validation by default in ArrowEngine (:pr:`6536`) `Richard (Rick) Zamora`_ 1081 1082Core 1083^^^^ 1084 1085- Use unpack_collections in make_blockwise_graph (:pr:`6517`) `Thomas J. Fan`_ 1086- Move key_split() from optimization.py to utils.py (:pr:`6529`) `Mads R. B. Kristensen`_ 1087- Make tests run on moto server (:pr:`6528`) `Martin Durant`_ 1088 1089 10902.23.0 / 2020-08-14 1091------------------- 1092 1093Array 1094^^^^^ 1095 1096- Reduce ``np.zeros``, ``ones``, and ``full`` array size with broadcasting (:pr:`6491`) `Matthias Bussonnier`_ 1097- Add missing ``meta=`` for ``trim`` in ``map_overlap`` (:pr:`6494`) `Peter Andreas Entschev`_ 1098 1099Bag 1100^^^ 1101 1102- Bag repartition partition size (:pr:`6371`) `joshreback`_ 1103 1104Core 1105^^^^ 1106 1107- ``Scalar.__dask_layers__()`` to return ``self._name`` instead of ``self.key`` (:pr:`6507`) `Mads R. B. Kristensen`_ 1108- Update dependencies correctly in ``fuse_root`` optimization (:pr:`6508`) `Mads R. B. Kristensen`_ 1109 1110 1111DataFrame 1112^^^^^^^^^ 1113 1114- Adds ``items`` to dataframe (:pr:`6503`) `Thomas J. Fan`_ 1115- Include compression in ``write_table`` call (:pr:`6499`) `Julia Signell`_ 1116- Fixed warning in ``nonempty_series`` (:pr:`6485`) `Tom Augspurger`_ 1117- Intelligently determine partitions based on type of first arg (:pr:`6479`) `Matthew Rocklin`_ 1118- Fix pyarrow ``mkdirs`` (:pr:`6475`) `Julia Signell`_ 1119- Fix duplicate parquet output in ``to_parquet`` (:pr:`6451`) `michaelnarodovitch`_ 1120 1121Documentation 1122^^^^^^^^^^^^^ 1123 1124- Fix documentation ``da.histogram`` (:pr:`6439`) `Roberto Panai`_ 1125- Add ``agg`` ``nunique`` example (:pr:`6404`) `Ray Bell`_ 1126- Fixed a few typos in the SQL docs (:pr:`6489`) `Mike McCarty`_ 1127- Docs for SQLing (:pr:`6453`) `Martin Durant`_ 1128 1129 11302.22.0 / 2020-07-31 1131------------------- 1132 1133Array 1134^^^^^ 1135 1136- Compatibility for NumPy dtype deprecation (:pr:`6430`) `Tom Augspurger`_ 1137 1138Core 1139^^^^ 1140 1141- Implement ``sizeof`` for some ``bytes``-like objects (:pr:`6457`) `John A Kirkham`_ 1142- HTTP error for new ``fsspec`` (:pr:`6446`) `Martin Durant`_ 1143- When ``RecursionError`` is raised, return uuid from ``tokenize`` function (:pr:`6437`) `Julia Signell`_ 1144- Install deps of upstream-dev packages (:pr:`6431`) `Tom Augspurger`_ 1145- Use updated link in ``setup.cfg`` (:pr:`6426`) `Zhengnan Zhao`_ 1146 1147DataFrame 1148^^^^^^^^^ 1149 1150- Add single quotes around column names if strings (:pr:`6471`) `Gil Forsyth`_ 1151- Refactor ``ArrowEngine`` for better ``read_parquet`` performance (:pr:`6346`) `Richard (Rick) Zamora`_ 1152- Add ``tolist`` dispatch (:pr:`6444`) `GALI PREM SAGAR`_ 1153- Compatibility with pandas 1.1.0rc0 (:pr:`6429`) `Tom Augspurger`_ 1154- Multi value pivot table (:pr:`6428`) `joshreback`_ 1155- Duplicate argument definitions in ``to_csv`` docstring (:pr:`6411`) `Jun Han (Johnson) Ooi`_ 1156 1157Documentation 1158^^^^^^^^^^^^^ 1159 1160- Add utility to docs to convert YAML config to env vars and back (:pr:`6472`) `Jacob Tomlinson`_ 1161- Fix parameter server rendering (:pr:`6466`) `Scott Sievert`_ 1162- Fixes broken links (:pr:`6403`) `Jim Circadian`_ 1163- Complete parameter server implementation in docs (:pr:`6449`) `Scott Sievert`_ 1164- Fix typo (:pr:`6436`) `Jack Xiaosong Xu`_ 1165 1166 11672.21.0 / 2020-07-17 1168------------------- 1169 1170Array 1171^^^^^ 1172 1173- Correct error message in ``array.routines.gradient()`` (:pr:`6417`) `johnomotani`_ 1174- Fix blockwise concatenate for array with some ``dimension=1`` (:pr:`6342`) `Matthias Bussonnier`_ 1175 1176Bag 1177^^^ 1178 1179- Fix ``bag.take`` example (:pr:`6418`) `Roberto Panai`_ 1180 1181Core 1182^^^^ 1183 1184- Groups values in optimization pass should only be graph and keys -- not an optimization + keys (:pr:`6409`) `Benjamin Zaitlen`_ 1185- Call custom optimizations once, with ``kwargs`` provided (:pr:`6382`) `Clark Zinzow`_ 1186- Include ``pickle5`` for testing on Python 3.7 (:pr:`6379`) `John A Kirkham`_ 1187 1188DataFrame 1189^^^^^^^^^ 1190 1191- Correct typo in error message (:pr:`6422`) `Tom McTiernan`_ 1192- Use ``pytest.warns`` to check for ``UserWarning`` (:pr:`6378`) `Richard (Rick) Zamora`_ 1193- Parse ``bytes_per_chunk keyword`` from string (:pr:`6370`) `Matthew Rocklin`_ 1194 1195Documentation 1196^^^^^^^^^^^^^ 1197 1198- Numpydoc formatting (:pr:`6421`) `Matthias Bussonnier`_ 1199- Unpin ``numpydoc`` following 1.1 release (:pr:`6407`) `Gil Forsyth`_ 1200- Numpydoc formatting (:pr:`6402`) `Matthias Bussonnier`_ 1201- Add instructions for using conda when installing code for development (:pr:`6399`) `Ray Bell`_ 1202- Update ``visualize`` docstrings (:pr:`6383`) `Zhengnan Zhao`_ 1203 1204 12052.20.0 / 2020-07-02 1206------------------- 1207 1208Array 1209^^^^^ 1210 1211- Register ``sizeof`` for numpy zero-strided arrays (:pr:`6343`) `Matthias Bussonnier`_ 1212- Use ``concatenate_lookup`` in ``concatenate`` (:pr:`6339`) `John A Kirkham`_ 1213- Fix rechunking of arrays with some zero-length dimensions (:pr:`6335`) `Matthias Bussonnier`_ 1214 1215DataFrame 1216^^^^^^^^^ 1217 1218- Dispatch ``iloc``` calls to ``getitem`` (:pr:`6355`) `Gil Forsyth`_ 1219- Handle unnamed pandas ``RangeIndex`` in fastparquet engine (:pr:`6350`) `Richard (Rick) Zamora`_ 1220- Preserve index when writing partitioned parquet datasets with pyarrow (:pr:`6282`) `Richard (Rick) Zamora`_ 1221- Use ``ignore_index`` for pandas' ``group_split_dispatch`` (:pr:`6251`) `Richard (Rick) Zamora`_ 1222 1223Documentation 1224^^^^^^^^^^^^^ 1225 1226- Add doc describing argument (:pr:`6318`) `asmith26`_ 1227 1228 12292.19.0 / 2020-06-19 1230------------------- 1231 1232Array 1233^^^^^ 1234 1235- Cast chunk sizes to python int ``dtype`` (:pr:`6326`) `Gil Forsyth`_ 1236- Add ``shape=None`` to ``*_like()`` array creation functions (:pr:`6064`) `Anderson Banihirwe`_ 1237 1238Core 1239^^^^ 1240 1241- Update expected error msg for protocol difference in fsspec (:pr:`6331`) `Gil Forsyth`_ 1242- Fix for floats < 1 in ``parse_bytes`` (:pr:`6311`) `Gil Forsyth`_ 1243- Fix exception causes all over the codebase (:pr:`6308`) `Ram Rachum`_ 1244- Fix duplicated tests (:pr:`6303`) `James Lamb`_ 1245- Remove unused testing function (:pr:`6304`) `James Lamb`_ 1246 1247DataFrame 1248^^^^^^^^^ 1249 1250- Add high-level CSV Subgraph (:pr:`6262`) `Gil Forsyth`_ 1251- Fix ``ValueError`` when merging an index-only 1-partition dataframe (:pr:`6309`) `Krishan Bhasin`_ 1252- Make ``index.map`` clear divisions. (:pr:`6285`) `Julia Signell`_ 1253 1254Documentation 1255^^^^^^^^^^^^^ 1256 1257- Add link to 2020 survey (:pr:`6328`) `Tom Augspurger`_ 1258- Update ``bag.rst`` (:pr:`6317`) `Ben Shaver`_ 1259 1260 12612.18.1 / 2020-06-09 1262------------------- 1263 1264Array 1265^^^^^ 1266 1267- Don't try to set name on ``full`` (:pr:`6299`) `Julia Signell`_ 1268- Histogram: support lazy values for range/bins (another way) (:pr:`6252`) `Gabe Joseph`_ 1269 1270Core 1271^^^^ 1272 1273- Fix exception causes in ``utils.py`` (:pr:`6302`) `Ram Rachum`_ 1274- Improve performance of ``HighLevelGraph`` construction (:pr:`6293`) `Julia Signell`_ 1275 1276Documentation 1277^^^^^^^^^^^^^ 1278 1279- Now readthedocs builds unrelased features' docstrings (:pr:`6295`) `Antonio Ercole De Luca`_ 1280- Add ``asyncssh`` intersphinx mappings (:pr:`6298`) `Jacob Tomlinson`_ 1281 1282 12832.18.0 / 2020-06-05 1284------------------- 1285 1286Array 1287^^^^^ 1288 1289- Cast slicing index to dask array if same shape as original (:pr:`6273`) `Julia Signell`_ 1290- Fix ``stack`` error message (:pr:`6268`) `Stephanie Gott`_ 1291- ``full`` & ``full_like``: error on non-scalar ``fill_value`` (:pr:`6129`) `Huite`_ 1292- Support for multiple arrays in ``map_overlap`` (:pr:`6165`) `Eric Czech`_ 1293- Pad resample divisions so that edges are counted (:pr:`6255`) `Julia Signell`_ 1294 1295Bag 1296^^^ 1297 1298- Random sampling of k elements from a dask bag #4799 (:pr:`6239`) `Antonio Ercole De Luca`_ 1299 1300DataFrame 1301^^^^^^^^^ 1302 1303- Add ``dropna``, ``sort``, and ``ascending`` to ``sort_values`` (:pr:`5880`) `Julia Signell`_ 1304- Generalize ``from_dask_array`` (:pr:`6263`) `GALI PREM SAGAR`_ 1305- Add derived docstring for ``SeriesGroupby.nunique`` (:pr:`6284`) `Julia Signell`_ 1306- Remove ``NotImplementedError`` in resample with rule (:pr:`6274`) `Abdulelah Bin Mahfoodh`_ 1307- Add ``dd.to_sql`` (:pr:`6038`) `Ryan Williams`_ 1308 1309Documentation 1310^^^^^^^^^^^^^ 1311 1312- Update remote data section (:pr:`6258`) `Ray Bell`_ 1313 1314 13152.17.2 / 2020-05-28 1316------------------- 1317 1318Core 1319^^^^ 1320 1321- Re-add the ``complete`` extra (:pr:`6257`) `Jim Crist-Harif`_ 1322 1323DataFrame 1324^^^^^^^^^ 1325 1326- Raise error if ``resample`` isn't going to give right answer (:pr:`6244`) `Julia Signell`_ 1327 1328 13292.17.1 / 2020-05-28 1330------------------- 1331 1332Array 1333^^^^^ 1334 1335- Empty array rechunk (:pr:`6233`) `Andrew Fulton`_ 1336 1337Core 1338^^^^ 1339 1340- Make ``pyyaml`` required (:pr:`6250`) `Jim Crist-Harif`_ 1341- Fix install commands from ``ImportError`` (:pr:`6238`) `Gaurav Sheni`_ 1342- Remove issue template (:pr:`6249`) `Jacob Tomlinson`_ 1343 1344DataFrame 1345^^^^^^^^^ 1346 1347- Pass ``ignore_index`` to ``dd_shuffle`` from ``DataFrame.shuffle`` (:pr:`6247`) `Richard (Rick) Zamora`_ 1348- Cope with missing HDF keys (:pr:`6204`) `Martin Durant`_ 1349- Generalize ``describe`` & ``quantile`` apis (:pr:`5137`) `GALI PREM SAGAR`_ 1350 1351 13522.17.0 / 2020-05-26 1353------------------- 1354 1355Array 1356^^^^^ 1357 1358- Small improvements to ``da.pad`` (:pr:`6213`) `Mark Boer`_ 1359- Return ``tuple`` if multiple outputs in ``dask.array.apply_gufunc``, add test to check for tuple (:pr:`6207`) `Kai Mühlbauer`_ 1360- Support ``stack`` with unknown chunksizes (:pr:`6195`) `swapna`_ 1361 1362Bag 1363^^^ 1364 1365- Random Choice on Bags (:pr:`6208`) `Antonio Ercole De Luca`_ 1366 1367Core 1368^^^^ 1369 1370- Raise warning ``delayed.visualise()`` (:pr:`6216`) `Amol Umbarkar`_ 1371- Ensure other pickle arguments work (:pr:`6229`) `John A Kirkham`_ 1372- Overhaul ``fuse()`` config (:pr:`6198`) `Guido Imperiale`_ 1373- Update ``dask.order.order`` to consider "next" nodes using both FIFO and LIFO (:pr:`5872`) `Erik Welch`_ 1374 1375DataFrame 1376^^^^^^^^^ 1377 1378- Use 0 as ``fill_value`` for more agg methods (:pr:`6245`) `Julia Signell`_ 1379- Generalize ``rearrange_by_column_tasks`` and add ``DataFrame.shuffle`` (:pr:`6066`) `Richard (Rick) Zamora`_ 1380- Xfail ``test_rolling_numba_engine`` for newer numba and older pandas (:pr:`6236`) `James Bourbeau`_ 1381- Generalize ``fix_overlap`` (:pr:`6240`) `GALI PREM SAGAR`_ 1382- Fix ``DataFrame.shape`` with no columns (:pr:`6237`) `noreentry`_ 1383- Avoid shuffle when setting a presorted index with overlapping divisions (:pr:`6226`) `Krishan Bhasin`_ 1384- Adjust the Parquet engine classes to allow more easily subclassing (:pr:`6211`) `Marius van Niekerk`_ 1385- Fix ``dd.merge_asof`` with ``left_on='col'`` & ``right_index=True`` (:pr:`6192`) `noreentry`_ 1386- Disable warning for ``concat`` (:pr:`6210`) `Tung Dang`_ 1387- Move ``AUTO_BLOCKSIZE`` out of ``read_csv`` signature (:pr:`6214`) `Jim Crist-Harif`_ 1388- ``.loc`` indexing with callable (:pr:`6185`) `Endre Mark Borza`_ 1389- Avoid apply in ``_compute_sum_of_squares`` for groupby std agg (:pr:`6186`) `Richard (Rick) Zamora`_ 1390- Minor correction to ``test_parquet`` (:pr:`6190`) `Brian Larsen`_ 1391- Adhering to the passed pat for delimeter join and fix error message (:pr:`6194`) `GALI PREM SAGAR`_ 1392- Skip ``test_to_parquet_with_get`` if no parquet libs available (:pr:`6188`) `Scott Sanderson`_ 1393 1394Documentation 1395^^^^^^^^^^^^^ 1396 1397- Added documentation for ``distributed.Event`` class (:pr:`6231`) `Nils Braun`_ 1398- Doc write to remote (:pr:`6124`) `Ray Bell`_ 1399 1400 14012.16.0 / 2020-05-08 1402------------------- 1403 1404Array 1405^^^^^ 1406 1407- Fix array general-reduction name (:pr:`6176`) `Nick Evans`_ 1408- Replace ``dim`` with ``shape`` in ``unravel_index`` (:pr:`6155`) `Julia Signell`_ 1409- Moment: handle all elements being masked (:pr:`5339`) `Gabe Joseph`_ 1410 1411Core 1412^^^^ 1413 1414- Remove Redundant string concatenations in dask code-base (:pr:`6137`) `GALI PREM SAGAR`_ 1415- Upstream compat (:pr:`6159`) `Tom Augspurger`_ 1416- Ensure ``sizeof`` of dict and sequences returns an integer (:pr:`6179`) `James Bourbeau`_ 1417- Estimate python collection sizes with random sampling (:pr:`6154`) `Florian Jetter`_ 1418- Update test upstream (:pr:`6146`) `Tom Augspurger`_ 1419- Skip test for mindeps build (:pr:`6144`) `Tom Augspurger`_ 1420- Switch default multiprocessing context to "spawn" (:pr:`4003`) `Itamar Turner-Trauring`_ 1421- Update manifest to include dask-schema (:pr:`6140`) `Benjamin Zaitlen`_ 1422 1423DataFrame 1424^^^^^^^^^ 1425 1426- Harden inconsistent-schema handling in pyarrow-based ``read_parquet`` (:pr:`6160`) `Richard (Rick) Zamora`_ 1427- Add compute ``kwargs`` to methods that write data to disk (:pr:`6056`) `Krishan Bhasin`_ 1428- Fix issue where ``unique`` returns an index like result from backends (:pr:`6153`) `GALI PREM SAGAR`_ 1429- Fix internal error in ``map_partitions`` with collections (:pr:`6103`) `Tom Augspurger`_ 1430 1431Documentation 1432^^^^^^^^^^^^^ 1433 1434- Add phase of computation to index TOC (:pr:`6157`) `Benjamin Zaitlen`_ 1435- Remove unused imports in scheduling script (:pr:`6138`) `James Lamb`_ 1436- Fix indent (:pr:`6147`) `Martin Durant`_ 1437- Add Tom's log config example (:pr:`6143`) `Martin Durant`_ 1438 1439 14402.15.0 / 2020-04-24 1441------------------- 1442 1443Array 1444^^^^^ 1445 1446- Update ``dask.array.from_array`` to warn when passed a Dask collection (:pr:`6122`) `James Bourbeau`_ 1447- Un-numpy like behaviour in ``dask.array.pad`` (:pr:`6042`) `Mark Boer`_ 1448- Add support for ``repeats=0`` in ``da.repeat`` (:pr:`6080`) `James Bourbeau`_ 1449 1450Core 1451^^^^ 1452 1453- Fix yaml layout for schema (:pr:`6132`) `Benjamin Zaitlen`_ 1454- Configuration Reference (:pr:`6069`) `Benjamin Zaitlen`_ 1455- Add configuration option to turn off task fusion (:pr:`6087`) `Matthew Rocklin`_ 1456- Skip pyarrow on windows (:pr:`6094`) `Tom Augspurger`_ 1457- Set limit to maximum length of fused key (:pr:`6057`) `Lucas Rademaker`_ 1458- Add test against #6062 (:pr:`6072`) `Martin Durant`_ 1459- Bump checkout action to v2 (:pr:`6065`) `James Bourbeau`_ 1460 1461DataFrame 1462^^^^^^^^^ 1463 1464- Generalize categorical calls to support cudf ``Categorical`` (:pr:`6113`) `GALI PREM SAGAR`_ 1465- Avoid reading ``_metadata`` on every worker (:pr:`6017`) `Richard (Rick) Zamora`_ 1466- Use ``group_split_dispatch`` and ``ignore_index`` in ``apply_concat_apply`` (:pr:`6119`) `Richard (Rick) Zamora`_ 1467- Handle new (dtype) pandas metadata with pyarrow (:pr:`6090`) `Richard (Rick) Zamora`_ 1468- Skip ``test_partition_on_cats_pyarrow`` if pyarrow is not installed (:pr:`6112`) `James Bourbeau`_ 1469- Update DataFrame len to handle columns with the same name (:pr:`6111`) `James Bourbeau`_ 1470- ``ArrowEngine`` bug fixes and test coverage (:pr:`6047`) `Richard (Rick) Zamora`_ 1471- Added mode (:pr:`5958`) `Adam Lewis`_ 1472 1473Documentation 1474^^^^^^^^^^^^^ 1475 1476- Update "helm install" for helm 3 usage (:pr:`6130`) `JulianWgs`_ 1477- Extend preload documentation (:pr:`6077`) `Matthew Rocklin`_ 1478- Fixed small typo in DataFrame ``map_partitions()`` docstring (:pr:`6115`) `Eugene Huang`_ 1479- Fix typo: "double" should be times, not plus (:pr:`6091`) `David Chudzicki`_ 1480- Fix first line of ``array.random.*`` docs (:pr:`6063`) `Martin Durant`_ 1481- Add section about ``Semaphore`` in distributed (:pr:`6053`) `Florian Jetter`_ 1482 1483 14842.14.0 / 2020-04-03 1485------------------- 1486 1487Array 1488^^^^^ 1489 1490- Added ``np.iscomplexobj`` implementation (:pr:`6045`) `Tom Augspurger`_ 1491 1492Core 1493^^^^ 1494 1495- Update ``test_rearrange_disk_cleanup_with_exception`` to pass without cloudpickle installed (:pr:`6052`) `James Bourbeau`_ 1496- Fixed flaky ``test-rearrange`` (:pr:`5977`) `Tom Augspurger`_ 1497 1498DataFrame 1499^^^^^^^^^ 1500 1501- Use ``_meta_nonempty`` for dtype casting in ``stack_partitions`` (:pr:`6061`) `mlondschien`_ 1502- Fix bugs in ``_metadata`` creation and filtering in parquet ``ArrowEngine`` (:pr:`6023`) `Richard (Rick) Zamora`_ 1503 1504Documentation 1505^^^^^^^^^^^^^ 1506 1507- DOC: Add name caveats (:pr:`6040`) `Tom Augspurger`_ 1508 1509 15102.13.0 / 2020-03-25 1511------------------- 1512 1513Array 1514^^^^^ 1515 1516- Support ``dtype`` and other keyword arguments in ``da.random`` (:pr:`6030`) `Matthew Rocklin`_ 1517- Register support for ``cupy`` sparse ``hstack``/``vstack`` (:pr:`5735`) `Corey J. Nolet`_ 1518- Force ``self.name`` to ``str`` in ``dask.array`` (:pr:`6002`) `Chuanzhu Xu`_ 1519 1520Bag 1521^^^ 1522 1523- Set ``rename_fused_keys`` to ``None`` by default in ``bag.optimize`` (:pr:`6000`) `Lucas Rademaker`_ 1524 1525Core 1526^^^^ 1527 1528- Copy dict in ``to_graphviz`` to prevent overwriting (:pr:`5996`) `JulianWgs`_ 1529- Stricter pandas ``xfail`` (:pr:`6024`) `Tom Augspurger`_ 1530- Fix CI failures (:pr:`6013`) `James Bourbeau`_ 1531- Update ``toolz`` to 0.8.2 and use ``tlz`` (:pr:`5997`) `Ryan Grout`_ 1532- Move Windows CI builds to GitHub Actions (:pr:`5862`) `James Bourbeau`_ 1533 1534DataFrame 1535^^^^^^^^^ 1536 1537- Improve path-related exceptions in ``read_hdf`` (:pr:`6032`) `psimaj`_ 1538- Fix ``dtype`` handling in ``dd.concat`` (:pr:`6006`) `mlondschien`_ 1539- Handle cudf's leftsemi and leftanti joins (:pr:`6025`) `Richard J Zamora`_ 1540- Remove unused ``npartitions`` variable in ``dd.from_pandas`` (:pr:`6019`) `Daniel Saxton`_ 1541- Added shuffle to ``DataFrame.random_split`` (:pr:`5980`) `petiop`_ 1542 1543Documentation 1544^^^^^^^^^^^^^ 1545 1546- Fix indentation in scheduler-overview docs (:pr:`6022`) `Matthew Rocklin`_ 1547- Update task graphs in optimize docs (:pr:`5928`) `Julia Signell`_ 1548- Optionally get rid of intermediary boxes in visualize, and add more labels (:pr:`5976`) `Julia Signell`_ 1549 1550 15512.12.0 / 2020-03-06 1552------------------- 1553 1554Array 1555^^^^^ 1556 1557- Improve reuse of temporaries with numpy (:pr:`5933`) `Bruce Merry`_ 1558- Make ``map_blocks`` with ``block_info`` produce a ``Blockwise`` (:pr:`5896`) `Bruce Merry`_ 1559- Optimize ``make_blockwise_graph`` (:pr:`5940`) `Bruce Merry`_ 1560- Fix axes ordering in ``da.tensordot`` (:pr:`5975`) `Gil Forsyth`_ 1561- Adds empty mode to ``array.pad`` (:pr:`5931`) `Thomas J. Fan`_ 1562 1563Core 1564^^^^ 1565 1566- Remove ``toolz.memoize`` dependency in ``dask.utils`` (:pr:`5978`) `Ryan Grout`_ 1567- Close pool leaking subprocess (:pr:`5979`) `Tom Augspurger`_ 1568- Pin ``numpydoc`` to ``0.8.0`` (fix double autoescape) (:pr:`5961`) `Gil Forsyth`_ 1569- Register deterministic tokenization for ``range`` objects (:pr:`5947`) `James Bourbeau`_ 1570- Unpin ``msgpack`` in CI (:pr:`5930`) `JAmes Bourbeau`_ 1571- Ensure dot results are placed in unique files. (:pr:`5937`) `Elliott Sales de Andrade`_ 1572- Add remaining optional dependencies to Travis 3.8 CI build environment (:pr:`5920`) `James Bourbeau`_ 1573 1574DataFrame 1575^^^^^^^^^ 1576 1577- Skip parquet ``getitem`` optimization for some keys (:pr:`5917`) `Tom Augspurger`_ 1578- Add ``ignore_index`` argument to ``rearrange_by_column`` code path (:pr:`5973`) `Richard J Zamora`_ 1579- Add DataFrame and Series ``memory_usage_per_partition`` methods (:pr:`5971`) `James Bourbeau`_ 1580- ``xfail`` test_describe when using Pandas 0.24.2 (:pr:`5948`) `James Bourbeau`_ 1581- Implement ``dask.dataframe.to_numeric`` (:pr:`5929`) `Julia Signell`_ 1582- Add new error message content when columns are in a different order (:pr:`5927`) `Julia Signell`_ 1583- Use shallow copy for assign operations when possible (:pr:`5740`) `Richard J Zamora`_ 1584 1585Documentation 1586^^^^^^^^^^^^^ 1587 1588- Changed above to below in ``dask.array.triu`` docs (:pr:`5984`) `Henrik Andersson`_ 1589- Array slicing: fix typo in ``slice_with_int_dask_array`` error message (:pr:`5981`) `Gabe Joseph`_ 1590- Grammar and formatting updates to docstrings (:pr:`5963`) `James Lamb`_ 1591- Update develop doc with conda option (:pr:`5939`) `Ray Bell`_ 1592- Update title of DataFrame extension docs (:pr:`5954`) `James Bourbeau`_ 1593- Fixed typos in documentation (:pr:`5962`) `James Lamb`_ 1594- Add original class or module as a ``kwarg`` on ``_bind_*`` methods (:pr:`5946`) `Julia Signell`_ 1595- Add collect list example (:pr:`5938`) `Ray Bell`_ 1596- Update optimization doc for python 3 (:pr:`5926`) `Julia Signell`_ 1597 1598 15992.11.0 / 2020-02-19 1600------------------- 1601 1602Array 1603^^^^^ 1604 1605- Cache result of ``Array.shape`` (:pr:`5916`) `Bruce Merry`_ 1606- Improve accuracy of ``estimate_graph_size`` for ``rechunk`` (:pr:`5907`) `Bruce Merry`_ 1607- Skip rechunk steps that do not alter chunking (:pr:`5909`) `Bruce Merry`_ 1608- Support ``dtype`` and other ``kwargs`` in ``coarsen`` (:pr:`5903`) `Matthew Rocklin`_ 1609- Push chunk override from ``map_blocks`` into blockwise (:pr:`5895`) `Bruce Merry`_ 1610- Avoid using ``rewrite_blockwise`` for a singleton (:pr:`5890`) `Bruce Merry`_ 1611- Optimize ``slices_from_chunks`` (:pr:`5891`) `Bruce Merry`_ 1612- Avoid unnecessary ``__getitem__`` in ``block()`` when chunks have correct dimensionality (:pr:`5884`) `Thomas Robitaille`_ 1613 1614Bag 1615^^^ 1616 1617- Add ``include_path`` option for ``dask.bag.read_text`` (:pr:`5836`) `Yifan Gu`_ 1618- Fixes ``ValueError`` in delayed execution of bagged NumPy array (:pr:`5828`) `Surya Avala`_ 1619 1620Core 1621^^^^ 1622 1623- CI: Pin ``msgpack`` (:pr:`5923`) `Tom Augspurger`_ 1624- Rename ``test_inner`` to ``test_outer`` (:pr:`5922`) `Shiva Raisinghani`_ 1625- ``quote`` should quote dicts too (:pr:`5905`) `Bruce Merry`_ 1626- Register a normalizer for literal (:pr:`5898`) `Bruce Merry`_ 1627- Improve layer name synthesis for non-HLGs (:pr:`5888`) `Bruce Merry`_ 1628- Replace flake8 pre-commit-hook with upstream (:pr:`5892`) `Julia Signell`_ 1629- Call pip as a module to avoid warnings (:pr:`5861`) `Cyril Shcherbin`_ 1630- Close ``ThreadPool`` at exit (:pr:`5852`) `Tom Augspurger`_ 1631- Remove ``dask.dataframe`` import in tokenization code (:pr:`5855`) `James Bourbeau`_ 1632 1633DataFrame 1634^^^^^^^^^ 1635 1636- Require ``pandas>=0.23`` (:pr:`5883`) `Tom Augspurger`_ 1637- Remove lambda from dataframe aggregation (:pr:`5901`) `Matthew Rocklin`_ 1638- Fix exception chaining in ``dataframe/__init__.py`` (:pr:`5882`) `Ram Rachum`_ 1639- Add support for reductions on empty dataframes (:pr:`5804`) `Shiva Raisinghani`_ 1640- Expose ``sort=`` argument for groupby (:pr:`5801`) `Richard J Zamora`_ 1641- Add ``df.empty`` property (:pr:`5711`) `rockwellw`_ 1642- Use parquet read speed-ups from ``fastparquet.api.paths_to_cats``. (:pr:`5821`) `Igor Gotlibovych`_ 1643 1644Documentation 1645^^^^^^^^^^^^^ 1646 1647- Deprecate ``doc_wraps`` (:pr:`5912`) `Tom Augspurger`_ 1648- Update array internal design docs for HighLevelGraph era (:pr:`5889`) `Bruce Merry`_ 1649- Move over dashboard connection docs (:pr:`5877`) `Matthew Rocklin`_ 1650- Move prometheus docs from distributed.dask.org (:pr:`5876`) `Matthew Rocklin`_ 1651- Removing duplicated DO block at the end (:pr:`5878`) `K.-Michael Aye`_ 1652- ``map_blocks`` see also (:pr:`5874`) `Tom Augspurger`_ 1653- More derived from (:pr:`5871`) `Julia Signell`_ 1654- Fix typo (:pr:`5866`) `Yetunde Dada`_ 1655- Fix typo in ``cloud.rst`` (:pr:`5860`) `Andrew Thomas`_ 1656- Add note pointing to code of conduct and diversity statement (:pr:`5844`) `Matthew Rocklin`_ 1657 1658 16592.10.1 / 2020-01-30 1660------------------- 1661 1662- Fix Pandas 1.0 version comparison (:pr:`5851`) `Tom Augspurger`_ 1663- Fix typo in distributed diagnostics documentation (:pr:`5841`) `Gerrit Holl`_ 1664 1665 16662.10.0 / 2020-01-28 1667------------------- 1668 1669- Support for pandas 1.0's new ``BooleanDtype`` and ``StringDtype`` (:pr:`5815`) `Tom Augspurger`_ 1670- Compatibility with pandas 1.0's API breaking changes and deprecations (:pr:`5792`) `Tom Augspurger`_ 1671- Fixed non-deterministic tokenization of some extension-array backed pandas objects (:pr:`5813`) `Tom Augspurger`_ 1672- Fixed handling of dataclass class objects in collections (:pr:`5812`) `Matteo De Wint`_ 1673- Fixed resampling with tz-aware dates when one of the endpoints fell in a non-existent time (:pr:`5807`) `dfonnegra`_ 1674- Delay initial Zarr dataset creation until the computation occurs (:pr:`5797`) `Chris Roat`_ 1675- Use parquet dataset statistics in more cases with the ``pyarrow`` engine (:pr:`5799`) `Richard J Zamora`_ 1676- Fixed exception in ``groupby.std()`` when some of the keys were large integers (:pr:`5737`) `H. Thomson Comer`_ 1677 1678 16792.9.2 / 2020-01-16 1680------------------ 1681 1682Array 1683^^^^^ 1684 1685- Unify chunks in ``broadcast_arrays`` (:pr:`5765`) `Matthew Rocklin`_ 1686 1687Core 1688^^^^ 1689 1690- ``xfail`` CSV encoding tests (:pr:`5791`) `Tom Augspurger`_ 1691- Update order to handle empty dask graph (:pr:`5789`) `James Bourbeau`_ 1692- Redo ``dask.order.order`` (:pr:`5646`) `Erik Welch`_ 1693 1694DataFrame 1695^^^^^^^^^ 1696 1697- Add transparent compression for on-disk shuffle with ``partd`` (:pr:`5786`) `Christian Wesp`_ 1698- Fix ``repr`` for empty dataframes (:pr:`5781`) `Shiva Raisinghani`_ 1699- Pandas 1.0.0RC0 compat (:pr:`5784`) `Tom Augspurger`_ 1700- Remove buggy assertions (:pr:`5783`) `Tom Augspurger`_ 1701- Pandas 1.0 compat (:pr:`5782`) `Tom Augspurger`_ 1702- Fix bug in pyarrow-based ``read_parquet`` on partitioned datasets (:pr:`5777`) `Richard J Zamora`_ 1703- Compat for pandas 1.0 (:pr:`5779`) `Tom Augspurger`_ 1704- Fix groupby/mean error with with categorical index (:pr:`5776`) `Richard J Zamora`_ 1705- Support empty partitions when performing cumulative aggregation (:pr:`5730`) `Matthew Rocklin`_ 1706- ``set_index`` accepts single-item unnested list (:pr:`5760`) `Wes Roach`_ 1707- Fixed partitioning in set index for ordered ``Categorical`` (:pr:`5715`) `Tom Augspurger`_ 1708 1709Documentation 1710^^^^^^^^^^^^^ 1711 1712- Note additional use case for ``normalize_token.register`` (:pr:`5766`) `Thomas A Caswell`_ 1713- Update bag ``repartition`` docstring (:pr:`5772`) `Timost`_ 1714- Small typos (:pr:`5771`) `Maarten Breddels`_ 1715- Fix typo in Task Expectations docs (:pr:`5767`) `James Bourbeau`_ 1716- Add docs section on task expectations to graph page (:pr:`5764`) `Devin Petersohn`_ 1717 1718 17192.9.1 / 2019-12-27 1720------------------ 1721 1722Array 1723^^^^^ 1724 1725- Support Array.view with dtype=None (:pr:`5736`) `Anderson Banihirwe`_ 1726- Add dask.array.nanmedian (:pr:`5684`) `Deepak Cherian`_ 1727 1728Core 1729^^^^ 1730 1731- xfail test_temporary_directory on Python 3.8 (:pr:`5734`) `James Bourbeau`_ 1732- Add support for Python 3.8 (:pr:`5603`) `James Bourbeau`_ 1733- Use id to dedupe constants in rewrite_blockwise (:pr:`5696`) `Jim Crist`_ 1734 1735DataFrame 1736^^^^^^^^^ 1737 1738- Raise error when converting a dask dataframe scalar to a boolean (:pr:`5743`) `James Bourbeau`_ 1739- Ensure dataframe groupby-variance is greater than zero (:pr:`5728`) `Matthew Rocklin`_ 1740- Fix DataFrame.__iter__ (:pr:`5719`) `Tom Augspurger`_ 1741- Support Parquet filters in disjunctive normal form, like PyArrow (:pr:`5656`) `Matteo De Wint`_ 1742- Auto-detect categorical columns in ArrowEngine-based read_parquet (:pr:`5690`) `Richard J Zamora`_ 1743- Skip parquet getitem optimization tests if no engine found (:pr:`5697`) `James Bourbeau`_ 1744- Fix independent optimization of parquet-getitem (:pr:`5613`) `Tom Augspurger`_ 1745 1746Documentation 1747^^^^^^^^^^^^^ 1748 1749- Update helm config doc (:pr:`5750`) `Ray Bell`_ 1750- Link to examples.dask.org in several places (:pr:`5733`) `Tom Augspurger`_ 1751- Add missing " in performance report example (:pr:`5724`) `James Bourbeau`_ 1752- Resolve several documentation build warnings (:pr:`5685`) `James Bourbeau`_ 1753- add info on performance_report (:pr:`5713`) `Benjamin Zaitlen`_ 1754- Add more docs disclaimers (:pr:`5710`) `Julia Signell`_ 1755- Fix simple typo: wihout -> without (:pr:`5708`) `Tim Gates`_ 1756- Update numpydoc dependency (:pr:`5694`) `James Bourbeau`_ 1757 1758 17592.9.0 / 2019-12-06 1760------------------ 1761 1762Array 1763^^^^^ 1764- Fix ``da.std`` to work with NumPy arrays (:pr:`5681`) `James Bourbeau`_ 1765 1766Core 1767^^^^ 1768- Register ``sizeof`` functions for Numba and RMM (:pr:`5668`) `John A Kirkham`_ 1769- Update meeting time (:pr:`5682`) `Tom Augspurger`_ 1770 1771DataFrame 1772^^^^^^^^^ 1773- Modify ``dd.DataFrame.drop`` to use shallow copy (:pr:`5675`) `Richard J Zamora`_ 1774- Fix bug in ``_get_md_row_groups`` (:pr:`5673`) `Richard J Zamora`_ 1775- Close sqlalchemy engine after querying DB (:pr:`5629`) `Krishan Bhasin`_ 1776- Allow ``dd.map_partitions`` to not enforce meta (:pr:`5660`) `Matthew Rocklin`_ 1777- Generalize ``concat_unindexed_dataframes`` to support cudf-backend (:pr:`5659`) `Richard J Zamora`_ 1778- Add dataframe resample methods (:pr:`5636`) `Benjamin Zaitlen`_ 1779- Compute length of dataframe as length of first column (:pr:`5635`) `Matthew Rocklin`_ 1780 1781Documentation 1782^^^^^^^^^^^^^ 1783- Doc fixup (:pr:`5665`) `James Bourbeau`_ 1784- Update doc build instructions (:pr:`5640`) `James Bourbeau`_ 1785- Fix ADL link (:pr:`5639`) `Ray Bell`_ 1786- Add documentation build (:pr:`5617`) `James Bourbeau`_ 1787 1788 17892.8.1 / 2019-11-22 1790------------------ 1791 1792Array 1793^^^^^ 1794- Use auto rechunking in ``da.rechunk`` if no value given (:pr:`5605`) `Matthew Rocklin`_ 1795 1796Core 1797^^^^ 1798- Add simple action to activate GH actions (:pr:`5619`) `James Bourbeau`_ 1799 1800DataFrame 1801^^^^^^^^^ 1802- Fix "file_path_0" bug in ``aggregate_row_groups`` (:pr:`5627`) `Richard J Zamora`_ 1803- Add ``chunksize`` argument to ``read_parquet`` (:pr:`5607`) `Richard J Zamora`_ 1804- Change ``test_repartition_npartitions`` to support arch64 architecture (:pr:`5620`) `ossdev07`_ 1805- Categories lost after groupby + agg (:pr:`5423`) `Oliver Hofkens`_ 1806- Fixed relative path issue with parquet metadata file (:pr:`5608`) `Nuno Gomes Silva`_ 1807- Enable gpu-backed covariance/correlation in dataframes (:pr:`5597`) `Richard J Zamora`_ 1808 1809Documentation 1810^^^^^^^^^^^^^ 1811- Fix institutional faq and unknown doc warnings (:pr:`5616`) `James Bourbeau`_ 1812- Add doc for some utils (:pr:`5609`) `Tom Augspurger`_ 1813- Removes ``html_extra_path`` (:pr:`5614`) `James Bourbeau`_ 1814- Fixed See Also referencence (:pr:`5612`) `Tom Augspurger`_ 1815 1816 18172.8.0 / 2019-11-14 1818------------------ 1819 1820Array 1821^^^^^ 1822- Implement complete dask.array.tile function (:pr:`5574`) `Bouwe Andela`_ 1823- Add median along an axis with automatic rechunking (:pr:`5575`) `Matthew Rocklin`_ 1824- Allow da.asarray to chunk inputs (:pr:`5586`) `Matthew Rocklin`_ 1825 1826Bag 1827^^^ 1828 1829- Use key_split in Bag name (:pr:`5571`) `Matthew Rocklin`_ 1830 1831Core 1832^^^^ 1833- Switch Doctests to Py3.7 (:pr:`5573`) `Ryan Nazareth`_ 1834- Relax get_colors test to adapt to new Bokeh release (:pr:`5576`) `Matthew Rocklin`_ 1835- Add dask.blockwise.fuse_roots optimization (:pr:`5451`) `Matthew Rocklin`_ 1836- Add sizeof implementation for small dicts (:pr:`5578`) `Matthew Rocklin`_ 1837- Update fsspec, gcsfs, s3fs (:pr:`5588`) `Tom Augspurger`_ 1838 1839DataFrame 1840^^^^^^^^^ 1841- Add dropna argument to groupby (:pr:`5579`) `Richard J Zamora`_ 1842- Revert "Remove import of dask_cudf, which is now a part of cudf (:pr:`5568`)" (:pr:`5590`) `Matthew Rocklin`_ 1843 1844Documentation 1845^^^^^^^^^^^^^ 1846 1847- Add best practice for dask.compute function (:pr:`5583`) `Matthew Rocklin`_ 1848- Create FUNDING.yml (:pr:`5587`) `Gina Helfrich`_ 1849- Add screencast for coordination primitives (:pr:`5593`) `Matthew Rocklin`_ 1850- Move funding to .github repo (:pr:`5589`) `Tom Augspurger`_ 1851- Update calendar link (:pr:`5569`) `Tom Augspurger`_ 1852 1853 18542.7.0 / 2019-11-08 1855------------------ 1856 1857This release drops support for Python 3.5 1858 1859Array 1860^^^^^ 1861 1862- Reuse code for assert_eq util method (:pr:`5496`) `Vijayant`_ 1863- Update da.array to always return a dask array (:pr:`5510`) `James Bourbeau`_ 1864- Skip transpose on trivial inputs (:pr:`5523`) `Ryan Abernathey`_ 1865- Avoid NumPy scalar string representation in tokenize (:pr:`5527`) `James Bourbeau`_ 1866- Remove unnecessary tiledb shape constraint (:pr:`5545`) `Norman Barker`_ 1867- Removes bytes from sparse array HTML repr (:pr:`5556`) `James Bourbeau`_ 1868 1869Core 1870^^^^ 1871 1872- Drop Python 3.5 (:pr:`5528`) `James Bourbeau`_ 1873- Update the use of fixtures in distributed tests (:pr:`5497`) `Matthew Rocklin`_ 1874- Changed deprecated bokeh-port to dashboard-address (:pr:`5507`) `darindf`_ 1875- Avoid updating with identical dicts in ensure_dict (:pr:`5501`) `James Bourbeau`_ 1876- Test Upstream (:pr:`5516`) `Tom Augspurger`_ 1877- Accelerate reverse_dict (:pr:`5479`) `Ryan Grout`_ 1878- Update test_imports.sh (:pr:`5534`) `James Bourbeau`_ 1879- Support cgroups limits on cpu count in multiprocess and threaded schedulers (:pr:`5499`) `Albert DeFusco`_ 1880- Update minimum pyarrow version on CI (:pr:`5562`) `James Bourbeau`_ 1881- Make cloudpickle optional (:pr:`5511`) `Guido Imperiale`_ 1882 1883DataFrame 1884^^^^^^^^^ 1885 1886- Add an example of index_col usage (:pr:`3072`) `Bruno Bonfils`_ 1887- Explicitly use iloc for row indexing (:pr:`5500`) `Krishan Bhasin`_ 1888- Accept dask arrays on columns assignemnt (:pr:`5224`) `Henrique Ribeiro`- 1889- Implement unique and value_counts for SeriesGroupBy (:pr:`5358`) `Scott Sievert`_ 1890- Add sizeof definition for pyarrow tables and columns (:pr:`5522`) `Richard J Zamora`_ 1891- Enable row-group task partitioning in pyarrow-based read_parquet (:pr:`5508`) `Richard J Zamora`_ 1892- Removes npartitions='auto' from dd.merge docstring (:pr:`5531`) `James Bourbeau`_ 1893- Apply enforce error message shows non-overlapping columns. (:pr:`5530`) `Tom Augspurger`_ 1894- Optimize meta_nonempty for repetitive dtypes (:pr:`5553`) `Petio Petrov`_ 1895- Remove import of dask_cudf, which is now a part of cudf (:pr:`5568`) `Mads R. B. Kristensen`_ 1896 1897Documentation 1898^^^^^^^^^^^^^ 1899 1900- Make capitalization more consistent in FAQ docs (:pr:`5512`) `Matthew Rocklin`_ 1901- Add CONTRIBUTING.md (:pr:`5513`) `Jacob Tomlinson`_ 1902- Document optional dependencies (:pr:`5456`) `Prithvi MK`_ 1903- Update helm chart docs to reflect new chart repo (:pr:`5539`) `Jacob Tomlinson`_ 1904- Add Resampler to API docs (:pr:`5551`) `James Bourbeau`_ 1905- Fix typo in read_sql_table (:pr:`5554`) `Eric Dill`_ 1906- Add adaptive deployments screencast [skip ci] (:pr:`5566`) `Matthew Rocklin`_ 1907 1908 19092.6.0 / 2019-10-15 1910------------------ 1911 1912Core 1913^^^^ 1914 1915- Call ``ensure_dict`` on graphs before entering ``toolz.merge`` (:pr:`5486`) `Matthew Rocklin`_ 1916- Consolidating hash dispatch functions (:pr:`5476`) `Richard J Zamora`_ 1917 1918DataFrame 1919^^^^^^^^^ 1920 1921- Support Python 3.5 in Parquet code (:pr:`5491`) `Benjamin Zaitlen`_ 1922- Avoid identity check in ``warn_dtype_mismatch`` (:pr:`5489`) `Tom Augspurger`_ 1923- Enable unused groupby tests (:pr:`3480`) `Jörg Dietrich`_ 1924- Remove old parquet and bcolz dataframe optimizations (:pr:`5484`) `Matthew Rocklin`_ 1925- Add getitem optimization for ``read_parquet`` (:pr:`5453`) `Tom Augspurger`_ 1926- Use ``_constructor_sliced`` method to determine Series type (:pr:`5480`) `Richard J Zamora`_ 1927- Fix map(series) for unsorted base series index (:pr:`5459`) `Justin Waugh`_ 1928- Fix ``KeyError`` with Groupby label (:pr:`5467`) `Ryan Nazareth`_ 1929 1930Documentation 1931^^^^^^^^^^^^^ 1932 1933- Use Zoom meeting instead of appear.in (:pr:`5494`) `Matthew Rocklin`_ 1934- Added curated list of resources (:pr:`5460`) `Javad`_ 1935- Update SSH docs to include ``SSHCluster`` (:pr:`5482`) `Matthew Rocklin`_ 1936- Update "Why Dask?" page (:pr:`5473`) `Matthew Rocklin`_ 1937- Fix typos in docstrings (:pr:`5469`) `garanews`_ 1938 1939 19402.5.2 / 2019-10-04 1941------------------ 1942 1943Array 1944^^^^^ 1945 1946- Correct chunk size logic for asymmetric overlaps (:pr:`5449`) `Ben Jeffery`_ 1947- Make da.unify_chunks public API (:pr:`5443`) `Matthew Rocklin`_ 1948 1949DataFrame 1950^^^^^^^^^ 1951 1952- Fix dask.dataframe.fillna handling of Scalar object (:pr:`5463`) `Zhenqing Li`_ 1953 1954Documentation 1955^^^^^^^^^^^^^ 1956 1957- Remove boxes in Spark comparison page (:pr:`5445`) `Matthew Rocklin`_ 1958- Add latest presentations (:pr:`5446`) `Javad`_ 1959- Update cloud documentation (:pr:`5444`) `Matthew Rocklin`_ 1960 1961 19622.5.0 / 2019-09-27 1963------------------ 1964 1965Core 1966^^^^ 1967 1968- Add sentinel no_default to get_dependencies task (:pr:`5420`) `James Bourbeau`_ 1969- Update fsspec version (:pr:`5415`) `Matthew Rocklin`_ 1970- Remove PY2 checks (:pr:`5400`) `Jim Crist`_ 1971 1972DataFrame 1973^^^^^^^^^ 1974 1975- Add option to not check meta in dd.from_delayed (:pr:`5436`) `Christopher J. Wright`_ 1976- Fix test_timeseries_nulls_in_schema failures with pyarrow master (:pr:`5421`) `Richard J Zamora`_ 1977- Reduce read_metadata output size in pyarrow/parquet (:pr:`5391`) `Richard J Zamora`_ 1978- Test numeric edge case for repartition with npartitions. (:pr:`5433`) `amerkel2`_ 1979- Unxfail pandas-datareader test (:pr:`5430`) `Tom Augspurger`_ 1980- Add DataFrame.pop implementation (:pr:`5422`) `Matthew Rocklin`_ 1981- Enable merge/set_index for cudf-based dataframes with cupy ``values`` (:pr:`5322`) `Richard J Zamora`_ 1982- drop_duplicates support for positional subset parameter (:pr:`5410`) `Wes Roach`_ 1983 1984Documentation 1985^^^^^^^^^^^^^ 1986 1987- Add screencasts to array, bag, dataframe, delayed, futures and setup (:pr:`5429`) (:pr:`5424`) `Matthew Rocklin`_ 1988- Fix delimeter parsing documentation (:pr:`5428`) `Mahmut Bulut`_ 1989- Update overview image (:pr:`5404`) `James Bourbeau`_ 1990 1991 19922.4.0 / 2019-09-13 1993------------------ 1994 1995Array 1996^^^^^ 1997 1998- Adds explicit ``h5py.File`` mode (:pr:`5390`) `James Bourbeau`_ 1999- Provides method to compute unknown array chunks sizes (:pr:`5312`) `Scott Sievert`_ 2000- Ignore runtime warning in Array ``compute_meta`` (:pr:`5356`) `estebanag`_ 2001- Add ``_meta`` to ``Array.__dask_postpersist__`` (:pr:`5353`) `Benoit Bovy`_ 2002- Fixup ``da.asarray`` and ``da.asanyarray`` for datetime64 dtype and xarray objects (:pr:`5334`) `Stephan Hoyer`_ 2003- Add shape implementation (:pr:`5293`) `Tom Augspurger`_ 2004- Add chunktype to array text repr (:pr:`5289`) `James Bourbeau`_ 2005- Array.random.choice: handle array-like non-arrays (:pr:`5283`) `Gabe Joseph`_ 2006 2007Core 2008^^^^ 2009 2010- Remove deprecated code (:pr:`5401`) `Jim Crist`_ 2011- Fix ``funcname`` when vectorized func has no ``__name__`` (:pr:`5399`) `James Bourbeau`_ 2012- Truncate ``funcname`` to avoid long key names (:pr:`5383`) `Matthew Rocklin`_ 2013- Add support for ``numpy.vectorize`` in ``funcname`` (:pr:`5396`) `James Bourbeau`_ 2014- Fixed HDFS upstream test (:pr:`5395`) `Tom Augspurger`_ 2015- Support numbers and None in ``parse_bytes``/``timedelta`` (:pr:`5384`) `Matthew Rocklin`_ 2016- Fix tokenizing of subindexes on memmapped numpy arrays (:pr:`5351`) `Henry Pinkard`_ 2017- Upstream fixups (:pr:`5300`) `Tom Augspurger`_ 2018 2019DataFrame 2020^^^^^^^^^ 2021 2022- Allow pandas to cast type of statistics (:pr:`5402`) `Richard J Zamora`_ 2023- Preserve index dtype after applying ``dd.pivot_table`` (:pr:`5385`) `therhaag`_ 2024- Implement explode for Series and DataFrame (:pr:`5381`) `Arpit Solanki`_ 2025- ``set_index`` on categorical fails with less categories than partitions (:pr:`5354`) `Oliver Hofkens`_ 2026- Support output to a single CSV file (:pr:`5304`) `Hongjiu Zhang`_ 2027- Add ``groupby().transform()`` (:pr:`5327`) `Oliver Hofkens`_ 2028- Adding filter kwarg to pyarrow dataset call (:pr:`5348`) `Richard J Zamora`_ 2029- Implement and check compression defaults for parquet (:pr:`5335`) `Sarah Bird`_ 2030- Pass sqlalchemy params to delayed objects (:pr:`5332`) `Arpit Solanki`_ 2031- Fixing schema handling in arrow-parquet (:pr:`5307`) `Richard J Zamora`_ 2032- Add support for DF and Series ``groupby().idxmin/max()`` (:pr:`5273`) `Oliver Hofkens`_ 2033- Add correlation calculation and add test (:pr:`5296`) `Benjamin Zaitlen`_ 2034 2035Documentation 2036^^^^^^^^^^^^^ 2037 2038- Numpy docstring standard has moved (:pr:`5405`) `Wes Roach`_ 2039- Reference correct NumPy array name (:pr:`5403`) `Wes Roach`_ 2040- Minor edits to Array chunk documentation (:pr:`5372`) `Scott Sievert`_ 2041- Add methods to API docs (:pr:`5387`) `Tom Augspurger`_ 2042- Add namespacing to configuration example (:pr:`5374`) `Matthew Rocklin`_ 2043- Add get_task_stream and profile to the diagnostics page (:pr:`5375`) `Matthew Rocklin`_ 2044- Add best practice to load data with Dask (:pr:`5369`) `Matthew Rocklin`_ 2045- Update ``institutional-faq.rst`` (:pr:`5345`) `DomHudson`_ 2046- Add threads and processes note to the best practices (:pr:`5340`) `Matthew Rocklin`_ 2047- Update cuDF links (:pr:`5328`) `James Bourbeau`_ 2048- Fixed small typo with parentheses placement (:pr:`5311`) `Eugene Huang`_ 2049- Update link in reshape docstring (:pr:`5297`) `James Bourbeau`_ 2050 2051 20522.3.0 / 2019-08-16 2053------------------ 2054 2055Array 2056^^^^^ 2057 2058- Raise exception when ``from_array`` is given a dask array (:pr:`5280`) `David Hoese`_ 2059- Avoid adjusting gufunc's meta dtype twice (:pr:`5274`) `Peter Andreas Entschev`_ 2060- Add ``meta=`` keyword to map_blocks and add test with sparse (:pr:`5269`) `Matthew Rocklin`_ 2061- Add rollaxis and moveaxis (:pr:`4822`) `Tobias de Jong`_ 2062- Always increment old chunk index (:pr:`5256`) `James Bourbeau`_ 2063- Shuffle dask array (:pr:`3901`) `Tom Augspurger`_ 2064- Fix ordering when indexing a dask array with a bool dask array (:pr:`5151`) `James Bourbeau`_ 2065 2066Bag 2067^^^ 2068 2069- Add workaround for memory leaks in bag generators (:pr:`5208`) `Marco Neumann`_ 2070 2071Core 2072^^^^ 2073 2074- Set strict xfail option (:pr:`5220`) `James Bourbeau`_ 2075- test-upstream (:pr:`5267`) `Tom Augspurger`_ 2076- Fixed HDFS CI failure (:pr:`5234`) `Tom Augspurger`_ 2077- Error nicely if no file size inferred (:pr:`5231`) `Jim Crist`_ 2078- A few changes to ``config.set`` (:pr:`5226`) `Jim Crist`_ 2079- Fixup black string normalization (:pr:`5227`) `Jim Crist`_ 2080- Pin NumPy in windows tests (:pr:`5228`) `Jim Crist`_ 2081- Ensure parquet tests are skipped if fastparquet and pyarrow not installed (:pr:`5217`) `James Bourbeau`_ 2082- Add fsspec to readthedocs (:pr:`5207`) `Matthew Rocklin`_ 2083- Bump NumPy and Pandas to 1.17 and 0.25 in CI test (:pr:`5179`) `John A Kirkham`_ 2084 2085DataFrame 2086^^^^^^^^^ 2087 2088- Fix ``DataFrame.query`` docstring (incorrect numexpr API) (:pr:`5271`) `Doug Davis`_ 2089- Parquet metadata-handling improvements (:pr:`5218`) `Richard J Zamora`_ 2090- Improve messaging around sorted parquet columns for index (:pr:`5265`) `Martin Durant`_ 2091- Add ``rearrange_by_divisions`` and ``set_index`` support for cudf (:pr:`5205`) `Richard J Zamora`_ 2092- Fix ``groupby.std()`` with integer colum names (:pr:`5096`) `Nicolas Hug`_ 2093- Add ``Series.__iter__`` (:pr:`5071`) `Blane`_ 2094- Generalize ``hash_pandas_object`` to work for non-pandas backends (:pr:`5184`) `GALI PREM SAGAR`_ 2095- Add rolling cov (:pr:`5154`) `Ivars Geidans`_ 2096- Add columns argument in drop function (:pr:`5223`) `Henrique Ribeiro`_ 2097 2098Documentation 2099^^^^^^^^^^^^^ 2100 2101- Update institutional FAQ doc (:pr:`5277`) `Matthew Rocklin`_ 2102- Add draft of institutional FAQ (:pr:`5214`) `Matthew Rocklin`_ 2103- Make boxes for dask-spark page (:pr:`5249`) `Martin Durant`_ 2104- Add motivation for shuffle docs (:pr:`5213`) `Matthew Rocklin`_ 2105- Fix links and API entries for best-practices (:pr:`5246`) `Martin Durant`_ 2106- Remove "bytes" (internal data ingestion) doc page (:pr:`5242`) `Martin Durant`_ 2107- Redirect from our local distributed page to distributed.dask.org (:pr:`5248`) `Matthew Rocklin`_ 2108- Cleanup API page (:pr:`5247`) `Matthew Rocklin`_ 2109- Remove excess endlines from install docs (:pr:`5243`) `Matthew Rocklin`_ 2110- Remove item list in phases of computation doc (:pr:`5245`) `Martin Durant`_ 2111- Remove custom graphs from the TOC sidebar (:pr:`5241`) `Matthew Rocklin`_ 2112- Remove experimental status of custom collections (:pr:`5236`) `James Bourbeau`_ 2113- Adds table of contents to Why Dask? (:pr:`5244`) `James Bourbeau`_ 2114- Moves bag overview to top-level bag page (:pr:`5240`) `James Bourbeau`_ 2115- Remove use-cases in favor of stories.dask.org (:pr:`5238`) `Matthew Rocklin`_ 2116- Removes redundant TOC information in index.rst (:pr:`5235`) `James Bourbeau`_ 2117- Elevate dashboard in distributed diagnostics documentation (:pr:`5239`) `Martin Durant`_ 2118- Updates "add" layer in HLG docs example (:pr:`5237`) `James Bourbeau`_ 2119- Update GUFunc documentation (:pr:`5232`) `Matthew Rocklin`_ 2120 2121 21222.2.0 / 2019-08-01 2123------------------ 2124 2125Array 2126^^^^^ 2127 2128- Use da.from_array(..., asarray=False) if input follows NEP-18 (:pr:`5074`) `Matthew Rocklin`_ 2129- Add missing attributes to from_array documentation (:pr:`5108`) `Peter Andreas Entschev`_ 2130- Fix meta computation for some reduction functions (:pr:`5035`) `Peter Andreas Entschev`_ 2131- Raise informative error in to_zarr if unknown chunks (:pr:`5148`) `James Bourbeau`_ 2132- Remove invalid pad tests (:pr:`5122`) `Tom Augspurger`_ 2133- Ignore NumPy warnings in compute_meta (:pr:`5103`) `Peter Andreas Entschev`_ 2134- Fix kurtosis calc for single dimension input array (:pr:`5177`) `@andrethrill`_ 2135- Support Numpy 1.17 in tests (:pr:`5192`) `Matthew Rocklin`_ 2136 2137Bag 2138^^^ 2139 2140- Supply pool to bag test to resolve intermittent failure (:pr:`5172`) `Tom Augspurger`_ 2141 2142Core 2143^^^^ 2144 2145- Base dask on fsspec (:pr:`5064`) (:pr:`5121`) `Martin Durant`_ 2146- Various upstream compatibility fixes (:pr:`5056`) `Tom Augspurger`_ 2147- Make distributed tests optional again. (:pr:`5128`) `Elliott Sales de Andrade`_ 2148- Fix HDFS in dask (:pr:`5130`) `Martin Durant`_ 2149- Ignore some more invalid value warnings. (:pr:`5140`) `Elliott Sales de Andrade`_ 2150 2151DataFrame 2152^^^^^^^^^ 2153 2154- Fix pd.MultiIndex size estimate (:pr:`5066`) `Brett Naul`_ 2155- Generalizing has_known_categories (:pr:`5090`) `GALI PREM SAGAR`_ 2156- Refactor Parquet engine (:pr:`4995`) `Richard J Zamora`_ 2157- Add divide method to series and dataframe (:pr:`5094`) `msbrown47`_ 2158- fix flaky partd test (:pr:`5111`) `Tom Augspurger`_ 2159- Adjust is_dataframe_like to adjust for value_counts change (:pr:`5143`) `Tom Augspurger`_ 2160- Generalize rolling windows to support non-Pandas dataframes (:pr:`5149`) `Nick Becker`_ 2161- Avoid unnecessary aggregation in pivot_table (:pr:`5173`) `Daniel Saxton`_ 2162- Add column names to apply_and_enforce error message (:pr:`5180`) `Matthew Rocklin`_ 2163- Add schema keyword argument to to_parquet (:pr:`5150`) `Sarah Bird`_ 2164- Remove recursion error in accessors (:pr:`5182`) `Jim Crist`_ 2165- Allow fastparquet to handle gather_statistics=False for file lists (:pr:`5157`) `Richard J Zamora`_ 2166 2167Documentation 2168^^^^^^^^^^^^^ 2169 2170- Adds NumFOCUS badge to the README (:pr:`5086`) `James Bourbeau`_ 2171- Update developer docs [ci skip] (:pr:`5093`) `Jim Crist`_ 2172- Document DataFrame.set_index computataion behavior `Natalya Rapstine`_ 2173- Use pip install . instead of calling setup.py (:pr:`5139`) `Matthias Bussonier`_ 2174- Close user survey (:pr:`5147`) `Tom Augspurger`_ 2175- Fix Google Calendar meeting link (:pr:`5155`) `Loïc Estève`_ 2176- Add docker image customization example (:pr:`5171`) `James Bourbeau`_ 2177- Update remote-data-services after fsspec (:pr:`5170`) `Martin Durant`_ 2178- Fix typo in spark.rst (:pr:`5164`) `Xavier Holt`_ 2179- Update setup/python docs for async/await API (:pr:`5163`) `Matthew Rocklin`_ 2180- Update Local Storage HPC documentation (:pr:`5165`) `Matthew Rocklin`_ 2181 2182 2183 21842.1.0 / 2019-07-08 2185------------------ 2186 2187Array 2188^^^^^ 2189 2190- Add ``recompute=`` keyword to ``svd_compressed`` for lower-memory use (:pr:`5041`) `Matthew Rocklin`_ 2191- Change ``__array_function__`` implementation for backwards compatibility (:pr:`5043`) `Ralf Gommers`_ 2192- Added ``dtype`` and ``shape`` kwargs to ``apply_along_axis`` (:pr:`3742`) `Davis Bennett`_ 2193- Fix reduction with empty tuple axis (:pr:`5025`) `Peter Andreas Entschev`_ 2194- Drop size 0 arrays in ``stack`` (:pr:`4978`) `John A Kirkham`_ 2195 2196Core 2197^^^^ 2198 2199- Removes index keyword from pandas ``to_parquet`` call (:pr:`5075`) `James Bourbeau`_ 2200- Fixes upstream dev CI build installation (:pr:`5072`) `James Bourbeau`_ 2201- Ensure scalar arrays are not rendered to SVG (:pr:`5058`) `Willi Rath`_ 2202- Environment creation overhaul (:pr:`5038`) `Tom Augspurger`_ 2203- s3fs, moto compatibility (:pr:`5033`) `Tom Augspurger`_ 2204- pytest 5.0 compat (:pr:`5027`) `Tom Augspurger`_ 2205 2206DataFrame 2207^^^^^^^^^ 2208 2209- Fix ``compute_meta`` recursion in blockwise (:pr:`5048`) `Peter Andreas Entschev`_ 2210- Remove hard dependency on pandas in ``get_dummies`` (:pr:`5057`) `GALI PREM SAGAR`_ 2211- Check dtypes unchanged when using ``DataFrame.assign`` (:pr:`5047`) `asmith26`_ 2212- Fix cumulative functions on tables with more than 1 partition (:pr:`5034`) `tshatrov`_ 2213- Handle non-divisible sizes in repartition (:pr:`5013`) `George Sakkis`_ 2214- Handles timestamp and ``preserve_index`` changes in pyarrow (:pr:`5018`) `Richard J Zamora`_ 2215- Fix undefined ``meta`` for ``str.split(expand=False)`` (:pr:`5022`) `Brett Naul`_ 2216- Removed checks used for debugging ``merge_asof`` (:pr:`5011`) `Cody Johnson`_ 2217- Don't use type when getting accessor in dataframes (:pr:`4992`) `Matthew Rocklin`_ 2218- Add ``melt`` as a method of Dask DataFrame (:pr:`4984`) `Dustin Tindall`_ 2219- Adds path-like support to ``to_hdf`` (:pr:`5003`) `James Bourbeau`_ 2220 2221Documentation 2222^^^^^^^^^^^^^ 2223 2224- Point to latest K8s setup article in JupyterHub docs (:pr:`5065`) `Sean McKenna`_ 2225- Changes vizualize to visualize (:pr:`5061`) `David Brochart`_ 2226- Fix ``from_sequence`` typo in delayed best practices (:pr:`5045`) `James Bourbeau`_ 2227- Add user survey link to docs (:pr:`5026`) `James Bourbeau`_ 2228- Fixes typo in optimization docs (:pr:`5015`) `James Bourbeau`_ 2229- Update community meeting information (:pr:`5006`) `Tom Augspurger`_ 2230 2231 22322.0.0 / 2019-06-25 2233------------------ 2234 2235Array 2236^^^^^ 2237 2238- Support automatic chunking in da.indices (:pr:`4981`) `James Bourbeau`_ 2239- Err if there are no arrays to stack (:pr:`4975`) `John A Kirkham`_ 2240- Asymmetrical Array Overlap (:pr:`4863`) `Michael Eaton`_ 2241- Dispatch concatenate where possible within dask array (:pr:`4669`) `Hameer Abbasi`_ 2242- Fix tokenization of memmapped numpy arrays on different part of same file (:pr:`4931`) `Henry Pinkard`_ 2243- Preserve NumPy condition in da.asarray to preserve output shape (:pr:`4945`) `Alistair Miles`_ 2244- Expand foo_like_safe usage (:pr:`4946`) `Peter Andreas Entschev`_ 2245- Defer order/casting einsum parameters to NumPy implementation (:pr:`4914`) `Peter Andreas Entschev`_ 2246- Remove numpy warning in moment calculation (:pr:`4921`) `Matthew Rocklin`_ 2247- Fix meta_from_array to support Xarray test suite (:pr:`4938`) `Matthew Rocklin`_ 2248- Cache chunk boundaries for integer slicing (:pr:`4923`) `Bruce Merry`_ 2249- Drop size 0 arrays in concatenate (:pr:`4167`) `John A Kirkham`_ 2250- Raise ValueError if concatenate is given no arrays (:pr:`4927`) `John A Kirkham`_ 2251- Promote types in `concatenate` using `_meta` (:pr:`4925`) `John A Kirkham`_ 2252- Add chunk type to html repr in Dask array (:pr:`4895`) `Matthew Rocklin`_ 2253- Add Dask Array._meta attribute (:pr:`4543`) `Peter Andreas Entschev`_ 2254 - Fix _meta slicing of flexible types (:pr:`4912`) `Peter Andreas Entschev`_ 2255 - Minor meta construction cleanup in concatenate (:pr:`4937`) `Peter Andreas Entschev`_ 2256 - Further relax Array meta checks for Xarray (:pr:`4944`) `Matthew Rocklin`_ 2257 - Support meta= keyword in da.from_delayed (:pr:`4972`) `Matthew Rocklin`_ 2258 - Concatenate meta along axis (:pr:`4977`) `John A Kirkham`_ 2259 - Use meta in stack (:pr:`4976`) `John A Kirkham`_ 2260 - Move blockwise_meta to more general compute_meta function (:pr:`4954`) `Matthew Rocklin`_ 2261- Alias .partitions to .blocks attribute of dask arrays (:pr:`4853`) `Genevieve Buckley`_ 2262- Drop outdated `numpy_compat` functions (:pr:`4850`) `John A Kirkham`_ 2263- Allow da.eye to support arbitrary chunking sizes with chunks='auto' (:pr:`4834`) `Anderson Banihirwe`_ 2264- Fix CI warnings in dask.array tests (:pr:`4805`) `Tom Augspurger`_ 2265- Make map_blocks work with drop_axis + block_info (:pr:`4831`) `Bruce Merry`_ 2266- Add SVG image and table in Array._repr_html_ (:pr:`4794`) `Matthew Rocklin`_ 2267- ufunc: avoid __array_wrap__ in favor of __array_function__ (:pr:`4708`) `Peter Andreas Entschev`_ 2268- Ensure trivial padding returns the original array (:pr:`4990`) `John A Kirkham`_ 2269- Test ``da.block`` with 0-size arrays (:pr:`4991`) `John A Kirkham`_ 2270 2271 2272Core 2273^^^^ 2274 2275- **Drop Python 2.7** (:pr:`4919`) `Jim Crist`_ 2276- Quiet dependency installs in CI (:pr:`4960`) `Tom Augspurger`_ 2277- Raise on warnings in tests (:pr:`4916`) `Tom Augspurger`_ 2278- Add a diagnostics extra to setup.py (includes bokeh) (:pr:`4924`) `John A Kirkham`_ 2279- Add newline delimter keyword to OpenFile (:pr:`4935`) `btw08`_ 2280- Overload HighLevelGraphs values method (:pr:`4918`) `James Bourbeau`_ 2281- Add __await__ method to Dask collections (:pr:`4901`) `Matthew Rocklin`_ 2282- Also ignore AttributeErrors which may occur if snappy (not python-snappy) is installed (:pr:`4908`) `Mark Bell`_ 2283- Canonicalize key names in config.rename (:pr:`4903`) `Ian Bolliger`_ 2284- Bump minimum partd to 0.3.10 (:pr:`4890`) `Tom Augspurger`_ 2285- Catch async def SyntaxError (:pr:`4836`) `James Bourbeau`_ 2286- catch IOError in ensure_file (:pr:`4806`) `Justin Poehnelt`_ 2287- Cleanup CI warnings (:pr:`4798`) `Tom Augspurger`_ 2288- Move distributed's parse and format functions to dask.utils (:pr:`4793`) `Matthew Rocklin`_ 2289- Apply black formatting (:pr:`4983`) `James Bourbeau`_ 2290- Package license file in wheels (:pr:`4988`) `John A Kirkham`_ 2291 2292 2293DataFrame 2294^^^^^^^^^ 2295 2296- Add an optional partition_size parameter to repartition (:pr:`4416`) `George Sakkis`_ 2297- merge_asof and prefix_reduction (:pr:`4877`) `Cody Johnson`_ 2298- Allow dataframes to be indexed by dask arrays (:pr:`4882`) `Endre Mark Borza`_ 2299- Avoid deprecated message parameter in pytest.raises (:pr:`4962`) `James Bourbeau`_ 2300- Update test_to_records to test with lengths argument(:pr:`4515`) `asmith26`_ 2301- Remove pandas pinning in Dataframe accessors (:pr:`4955`) `Matthew Rocklin`_ 2302- Fix correlation of series with same names (:pr:`4934`) `Philipp S. Sommer`_ 2303- Map Dask Series to Dask Series (:pr:`4872`) `Justin Waugh`_ 2304- Warn in dd.merge on dtype warning (:pr:`4917`) `mcsoini`_ 2305- Add groupby Covariance/Correlation (:pr:`4889`) `Benjamin Zaitlen`_ 2306- keep index name with to_datetime (:pr:`4905`) `Ian Bolliger`_ 2307- Add Parallel variance computation for dataframes (:pr:`4865`) `Ksenia Bobrova`_ 2308- Add divmod implementation to arrays and dataframes (:pr:`4884`) `Henrique Ribeiro`_ 2309- Add documentation for dataframe reshape methods (:pr:`4896`) `tpanza`_ 2310- Avoid use of pandas.compat (:pr:`4881`) `Tom Augspurger`_ 2311- Added accessor registration for Series, DataFrame, and Index (:pr:`4829`) `Tom Augspurger`_ 2312- Add read_function keyword to read_json (:pr:`4810`) `Richard J Zamora`_ 2313- Provide full type name in check_meta (:pr:`4819`) `Matthew Rocklin`_ 2314- Correctly estimate bytes per row in read_sql_table (:pr:`4807`) `Lijo Jose`_ 2315- Adding support of non-numeric data to describe() (:pr:`4791`) `Ksenia Bobrova`_ 2316- Scalars for extension dtypes. (:pr:`4459`) `Tom Augspurger`_ 2317- Call head before compute in dd.from_delayed (:pr:`4802`) `Matthew Rocklin`_ 2318- Add support for rolling operations with larger window that partition size in DataFrames with Time-based index (:pr:`4796`) `Jorge Pessoa`_ 2319- Update groupby-apply doc with warning (:pr:`4800`) `Tom Augspurger`_ 2320- Change groupby-ness tests in `_maybe_slice` (:pr:`4786`) `Benjamin Zaitlen`_ 2321- Add master best practices document (:pr:`4745`) `Matthew Rocklin`_ 2322- Add document for how Dask works with GPUs (:pr:`4792`) `Matthew Rocklin`_ 2323- Add cli API docs (:pr:`4788`) `James Bourbeau`_ 2324- Ensure concat output has coherent dtypes (:pr:`4692`) `Guillaume Lemaitre`_ 2325- Fixes pandas_datareader dependencies installation (:pr:`4989`) `James Bourbeau`_ 2326- Accept pathlib.Path as pattern in read_hdf (:pr:`3335`) `Jörg Dietrich`_ 2327 2328 2329Documentation 2330^^^^^^^^^^^^^ 2331 2332- Move CLI API docs to relavant pages (:pr:`4980`) `James Bourbeau`_ 2333- Add to_datetime function to dataframe API docs `Matthew Rocklin`_ 2334- Add documentation entry for dask.array.ma.average (:pr:`4970`) `Bouwe Andela`_ 2335- Add bag.read_avro to bag API docs (:pr:`4969`) `James Bourbeau`_ 2336- Fix typo (:pr:`4968`) `mbarkhau`_ 2337- Docs: Drop support for Python 2.7 (:pr:`4932`) `Hugo`_ 2338- Remove requirement to modify changelog (:pr:`4915`) `Matthew Rocklin`_ 2339- Add documentation about meta column order (:pr:`4887`) `Tom Augspurger`_ 2340- Add documentation note in DataFrame.shift (:pr:`4886`) `Tom Augspurger`_ 2341- Docs: Fix typo (:pr:`4868`) `Paweł Kordek`_ 2342- Put do/don't into boxes for delayed best practice docs (:pr:`3821`) `Martin Durant`_ 2343- Doc fixups (:pr:`2528`) `Tom Augspurger`_ 2344- Add quansight to paid support doc section (:pr:`4838`) `Martin Durant`_ 2345- Add document for custom startup (:pr:`4833`) `Matthew Rocklin`_ 2346- Allow `utils.derive_from` to accept functions, apply across array (:pr:`4804`) `Martin Durant`_ 2347- Add "Avoid Large Partitions" section to best practices (:pr:`4808`) `Matthew Rocklin`_ 2348- Update URL for joblib to new website hosting their doc (:pr:`4816`) `Christian Hudon`_ 2349 23501.2.2 / 2019-05-08 2351------------------ 2352 2353Array 2354^^^^^ 2355 2356- Clarify regions kwarg to array.store (:pr:`4759`) `Martin Durant`_ 2357- Add dtype= parameter to da.random.randint (:pr:`4753`) `Matthew Rocklin`_ 2358- Use "row major" rather than "C order" in docstring (:pr:`4452`) `@asmith26`_ 2359- Normalize Xarray datasets to Dask arrays (:pr:`4756`) `Matthew Rocklin`_ 2360- Remove normed keyword in da.histogram (:pr:`4755`) `Matthew Rocklin`_ 2361 2362Bag 2363^^^ 2364 2365- Add key argument to Bag.distinct (:pr:`4423`) `Daniel Severo`_ 2366 2367Core 2368^^^^ 2369 2370- Add core dask config file (:pr:`4774`) `Matthew Rocklin`_ 2371- Add core dask config file to MANIFEST.in (:pr:`4780`) `James Bourbeau`_ 2372- Enabling glob with HTTP file-system (:pr:`3926`) `Martin Durant`_ 2373- HTTPFile.seek with whence=1 (:pr:`4751`) `Martin Durant`_ 2374- Remove config key normalization (:pr:`4742`) `Jim Crist`_ 2375 2376DataFrame 2377^^^^^^^^^ 2378 2379- Remove explicit references to Pandas in dask.dataframe.groupby (:pr:`4778`) `Matthew Rocklin`_ 2380- Add support for group_keys kwarg in DataFrame.groupby() (:pr:`4771`) `Brian Chu`_ 2381- Describe doc (:pr:`4762`) `Martin Durant`_ 2382- Remove explicit pandas check in cumulative aggregations (:pr:`4765`) `Nick Becker`_ 2383- Added meta for read_json and test (:pr:`4588`) `Abhinav Ralhan`_ 2384- Add test for dtype casting (:pr:`4760`) `Martin Durant`_ 2385- Document alignment in map_partitions (:pr:`4757`) `Jim Crist`_ 2386- Implement Series.str.split(expand=True) (:pr:`4744`) `Matthew Rocklin`_ 2387 2388Documentation 2389^^^^^^^^^^^^^ 2390 2391- Tweaks to develop.rst from trying to run tests (:pr:`4772`) `Christian Hudon`_ 2392- Add document describing phases of computation (:pr:`4766`) `Matthew Rocklin`_ 2393- Point users to Dask-Yarn from spark documentation (:pr:`4770`) `Matthew Rocklin`_ 2394- Update images in delayed doc to remove labels (:pr:`4768`) `Martin Durant`_ 2395- Explain intermediate storage for dask arrays (:pr:`4025`) `John A Kirkham`_ 2396- Specify bash code-block in array best practices (:pr:`4764`) `James Bourbeau`_ 2397- Add array best practices doc (:pr:`4705`) `Matthew Rocklin`_ 2398- Update optimization docs now that cull is not automatic (:pr:`4752`) `Matthew Rocklin`_ 2399 2400 24011.2.1 / 2019-04-29 2402------------------ 2403 2404Array 2405^^^^^ 2406 2407- Fix map_blocks with block_info and broadcasting (:pr:`4737`) `Bruce Merry`_ 2408- Make 'minlength' keyword argument optional in da.bincount (:pr:`4684`) `Genevieve Buckley`_ 2409- Add support for map_blocks with no array arguments (:pr:`4713`) `Bruce Merry`_ 2410- Add dask.array.trace (:pr:`4717`) `Danilo Horta`_ 2411- Add sizeof support for cupy.ndarray (:pr:`4715`) `Peter Andreas Entschev`_ 2412- Add name kwarg to from_zarr (:pr:`4663`) `Michael Eaton`_ 2413- Add chunks='auto' to from_array (:pr:`4704`) `Matthew Rocklin`_ 2414- Raise TypeError if dask array is given as shape for da.ones, zeros, empty or full (:pr:`4707`) `Genevieve Buckley`_ 2415- Add TileDB backend (:pr:`4679`) `Isaiah Norton`_ 2416 2417Core 2418^^^^ 2419 2420- Delay long list arguments (:pr:`4735`) `Matthew Rocklin`_ 2421- Bump to numpy >= 1.13, pandas >= 0.21.0 (:pr:`4720`) `Jim Crist`_ 2422- Remove file "test" (:pr:`4710`) `James Bourbeau`_ 2423- Reenable development build, uses upstream libraries (:pr:`4696`) `Peter Andreas Entschev`_ 2424- Remove assertion in HighLevelGraph constructor (:pr:`4699`) `Matthew Rocklin`_ 2425 2426DataFrame 2427^^^^^^^^^ 2428 2429- Change cum-aggregation last-nonnull-value algorithm (:pr:`4736`) `Nick Becker`_ 2430- Fixup series-groupby-apply (:pr:`4738`) `Jim Crist`_ 2431- Refactor array.percentile and dataframe.quantile to use t-digest (:pr:`4677`) `Janne Vuorela`_ 2432- Allow naive concatenation of sorted dataframes (:pr:`4725`) `Matthew Rocklin`_ 2433- Fix perf issue in dd.Series.isin (:pr:`4727`) `Jim Crist`_ 2434- Remove hard pandas dependency for melt by using methodcaller (:pr:`4719`) `Nick Becker`_ 2435- A few dataframe metadata fixes (:pr:`4695`) `Jim Crist`_ 2436- Add Dataframe.replace (:pr:`4714`) `Matthew Rocklin`_ 2437- Add 'threshold' parameter to pd.DataFrame.dropna (:pr:`4625`) `Nathan Matare`_ 2438 2439Documentation 2440^^^^^^^^^^^^^ 2441 2442- Add warning about derived docstrings early in the docstring (:pr:`4716`) `Matthew Rocklin`_ 2443- Create dataframe best practices doc (:pr:`4703`) `Matthew Rocklin`_ 2444- Uncomment dask_sphinx_theme (:pr:`4728`) `James Bourbeau`_ 2445- Fix minor typo fix in a Queue/fire_and_forget example (:pr:`4709`) `Matthew Rocklin`_ 2446- Update from_pandas docstring to match signature (:pr:`4698`) `James Bourbeau`_ 2447 24481.2.0 / 2019-04-12 2449------------------ 2450 2451Array 2452^^^^^ 2453 2454- Fixed mean() and moment() on sparse arrays (:pr:`4525`) `Peter Andreas Entschev`_ 2455- Add test for NEP-18. (:pr:`4675`) `Hameer Abbasi`_ 2456- Allow None to say "no chunking" in normalize_chunks (:pr:`4656`) `Matthew Rocklin`_ 2457- Fix limit value in auto_chunks (:pr:`4645`) `Matthew Rocklin`_ 2458 2459Core 2460^^^^ 2461 2462- Updated diagnostic bokeh test for compatibility with bokeh>=1.1.0 (:pr:`4680`) `Philipp Rudiger`_ 2463- Adjusts codecov's target/threshold, disable patch (:pr:`4671`) `Peter Andreas Entschev`_ 2464- Always start with empty http buffer, not None (:pr:`4673`) `Martin Durant`_ 2465 2466DataFrame 2467^^^^^^^^^ 2468 2469- Propagate index dtype and name when create dask dataframe from array (:pr:`4686`) `Henrique Ribeiro`_ 2470- Fix ordering of quantiles in describe (:pr:`4647`) `gregrf`_ 2471- Clean up and document rearrange_column_by_tasks (:pr:`4674`) `Matthew Rocklin`_ 2472- Mark some parquet tests xfail (:pr:`4667`) `Peter Andreas Entschev`_ 2473- Fix parquet breakages with arrow 0.13.0 (:pr:`4668`) `Martin Durant`_ 2474- Allow sample to be False when reading CSV from a remote URL (:pr:`4634`) `Ian Rose`_ 2475- Fix timezone metadata inference on parquet load (:pr:`4655`) `Martin Durant`_ 2476- Use is_dataframe/index_like in dd.utils (:pr:`4657`) `Matthew Rocklin`_ 2477- Add min_count parameter to groupby sum method (:pr:`4648`) `Henrique Ribeiro`_ 2478- Correct quantile to handle unsorted quantiles (:pr:`4650`) `gregrf`_ 2479 2480Documentation 2481^^^^^^^^^^^^^ 2482 2483- Add delayed extra dependencies to install docs (:pr:`4660`) `James Bourbeau`_ 2484 2485 24861.1.5 / 2019-03-29 2487------------------ 2488 2489Array 2490^^^^^ 2491 2492- Ensure that we use the dtype keyword in normalize_chunks (:pr:`4646`) `Matthew Rocklin`_ 2493 2494Core 2495^^^^ 2496 2497- Use recursive glob in LocalFileSystem (:pr:`4186`) `Brett Naul`_ 2498- Avoid YAML deprecation (:pr:`4603`) 2499- Fix CI and add set -e (:pr:`4605`) `James Bourbeau`_ 2500- Support builtin sequence types in dask.visualize (:pr:`4602`) 2501- unpack/repack orderedDict (:pr:`4623`) `Justin Poehnelt`_ 2502- Add da.random.randint to API docs (:pr:`4628`) `James Bourbeau`_ 2503- Add zarr to CI environment (:pr:`4604`) `James Bourbeau`_ 2504- Enable codecov (:pr:`4631`) `Peter Andreas Entschev`_ 2505 2506DataFrame 2507^^^^^^^^^ 2508 2509- Support setting the index (:pr:`4565`) 2510- DataFrame.itertuples accepts index, name kwargs (:pr:`4593`) `Dan O'Donovan`_ 2511- Support non-Pandas series in dd.Series.unique (:pr:`4599`) `Benjamin Zaitlen`_ 2512- Replace use of explicit type check with ._is_partition_type predicate (:pr:`4533`) 2513- Remove additional pandas warnings in tests (:pr:`4576`) 2514- Check object for name/dtype attributes rather than type (:pr:`4606`) 2515- Fix comparison against pd.Series (:pr:`4613`) `amerkel2`_ 2516- Fixing warning from setting categorical codes to floats (:pr:`4624`) `Julia Signell`_ 2517- Fix renaming on index to_frame method (:pr:`4498`) `Henrique Ribeiro`_ 2518- Fix divisions when joining two single-partition dataframes (:pr:`4636`) `Justin Waugh`_ 2519- Warn if partitions overlap in compute_divisions (:pr:`4600`) `Brian Chu`_ 2520- Give informative meta= warning (:pr:`4637`) `Matthew Rocklin`_ 2521- Add informative error message to Series.__getitem__ (:pr:`4638`) `Matthew Rocklin`_ 2522- Add clear exception message when using index or index_col in read_csv (:pr:`4651`) `Álvaro Abella Bascarán`_ 2523 2524Documentation 2525^^^^^^^^^^^^^ 2526 2527- Add documentation for custom groupby aggregations (:pr:`4571`) 2528- Docs dataframe joins (:pr:`4569`) 2529- Specify fork-based contributions (:pr:`4619`) `James Bourbeau`_ 2530- correct to_parquet example in docs (:pr:`4641`) `Aaron Fowles`_ 2531- Update and secure several references (:pr:`4649`) `Søren Fuglede Jørgensen`_ 2532 2533 25341.1.4 / 2019-03-08 2535------------------ 2536 2537Array 2538^^^^^ 2539 2540- Use mask selection in compress (:pr:`4548`) `John A Kirkham`_ 2541- Use `asarray` in `extract` (:pr:`4549`) `John A Kirkham`_ 2542- Use correct dtype when test concatenation. (:pr:`4539`) `Elliott Sales de Andrade`_ 2543- Fix CuPy tests or properly marks as xfail (:pr:`4564`) `Peter Andreas Entschev`_ 2544 2545Core 2546^^^^ 2547 2548- Fix local scheduler callback to deal with custom caching (:pr:`4542`) `Yu Feng`_ 2549- Use parse_bytes in read_bytes(sample=...) (:pr:`4554`) `Matthew Rocklin`_ 2550 2551DataFrame 2552^^^^^^^^^ 2553 2554- Fix up groupby-standard deviation again on object dtype keys (:pr:`4541`) `Matthew Rocklin`_ 2555- TST/CI: Updates for pandas 0.24.1 (:pr:`4551`) `Tom Augspurger`_ 2556- Add ability to control number of unique elements in timeseries (:pr:`4557`) `Matthew Rocklin`_ 2557- Add support in read_csv for parameter skiprows for other iterables (:pr:`4560`) `@JulianWgs`_ 2558 2559Documentation 2560^^^^^^^^^^^^^ 2561 2562- DataFrame to Array conversion and unknown chunks (:pr:`4516`) `Scott Sievert`_ 2563- Add docs for random array creation (:pr:`4566`) `Matthew Rocklin`_ 2564- Fix typo in docstring (:pr:`4572`) `Shyam Saladi`_ 2565 2566 25671.1.3 / 2019-03-01 2568------------------ 2569 2570Array 2571^^^^^ 2572 2573- Modify mean chunk functions to return dicts rather than arrays (:pr:`4513`) `Matthew Rocklin`_ 2574- Change sparse installation in CI for NumPy/Python2 compatibility (:pr:`4537`) `Matthew Rocklin`_ 2575 2576DataFrame 2577^^^^^^^^^ 2578 2579- Make merge dispatchable on pandas/other dataframe types (:pr:`4522`) `Matthew Rocklin`_ 2580- read_sql_table - datetime index fix and index type checking (:pr:`4474`) `Joe Corbett`_ 2581- Use generalized form of index checking (is_index_like) (:pr:`4531`) `Benjamin Zaitlen`_ 2582- Add tests for groupby reductions with object dtypes (:pr:`4535`) `Matthew Rocklin`_ 2583- Fixes #4467 : Updates time_series for pandas deprecation (:pr:`4530`) `@HSR05`_ 2584 2585Documentation 2586^^^^^^^^^^^^^ 2587 2588- Add missing method to documentation index (:pr:`4528`) `Bart Broere`_ 2589 2590 25911.1.2 / 2019-02-25 2592------------------ 2593 2594Array 2595^^^^^ 2596 2597- Fix another unicode/mixed-type edge case in normalize_array (:pr:`4489`) `Marco Neumann`_ 2598- Add dask.array.diagonal (:pr:`4431`) `Danilo Horta`_ 2599- Call asanyarray in unify_chunks (:pr:`4506`) `Jim Crist`_ 2600- Modify moment chunk functions to return dicts (:pr:`4519`) `Peter Andreas Entschev`_ 2601 2602 2603Bag 2604^^^ 2605 2606- Don't inline output keys in dask.bag (:pr:`4464`) `Jim Crist`_ 2607- Ensure that bag.from_sequence always includes at least one partition (:pr:`4475`) `Anderson Banihirwe`_ 2608- Implement out_type for bag.fold (:pr:`4502`) `Matthew Rocklin`_ 2609- Remove map from bag keynames (:pr:`4500`) `Matthew Rocklin`_ 2610- Avoid itertools.repeat in map_partitions (:pr:`4507`) `Matthew Rocklin`_ 2611 2612 2613DataFrame 2614^^^^^^^^^ 2615 2616- Fix relative path parsing on windows when using fastparquet (:pr:`4445`) `Janne Vuorela`_ 2617- Fix bug in pyarrow and hdfs (:pr:`4453`) (:pr:`4455`) `Michał Jastrzębski`_ 2618- df getitem with integer slices is not implemented (:pr:`4466`) `Jim Crist`_ 2619- Replace cudf-specific code with dask-cudf import (:pr:`4470`) `Matthew Rocklin`_ 2620- Avoid groupby.agg(callable) in groupby-var (:pr:`4482`) `Matthew Rocklin`_ 2621- Consider uint types as numerical in check_meta (:pr:`4485`) `Marco Neumann`_ 2622- Fix some typos in groupby comments (:pr:`4494`) `Daniel Saxton`_ 2623- Add error message around set_index(inplace=True) (:pr:`4501`) `Matthew Rocklin`_ 2624- meta_nonempty works with categorical index (:pr:`4505`) `Jim Crist`_ 2625- Add module name to expected meta error message (:pr:`4499`) `Matthew Rocklin`_ 2626- groupby-nunique works on empty chunk (:pr:`4504`) `Jim Crist`_ 2627- Propagate index metadata if not specified (:pr:`4509`) `Jim Crist`_ 2628 2629Documentation 2630^^^^^^^^^^^^^ 2631 2632- Update docs to use ``from_zarr`` (:pr:`4472`) `John A Kirkham`_ 2633- DOC: add section of `Using Other S3-Compatible Services` for remote-data-services (:pr:`4405`) `Aploium`_ 2634- Fix header level of section in changelog (:pr:`4483`) `Bruce Merry`_ 2635- Add quotes to pip install [skip-ci] (:pr:`4508`) `James Bourbeau`_ 2636 2637Core 2638^^^^ 2639 2640- Extend started_cbs AFTER state is initialized (:pr:`4460`) `Marco Neumann`_ 2641- Fix bug in HTTPFile._fetch_range with headers (:pr:`4479`) (:pr:`4480`) `Ross Petchler`_ 2642- Repeat optimize_blockwise for diamond fusion (:pr:`4492`) `Matthew Rocklin`_ 2643 2644 26451.1.1 / 2019-01-31 2646------------------ 2647 2648Array 2649^^^^^ 2650 2651- Add support for cupy.einsum (:pr:`4402`) `Johnnie Gray`_ 2652- Provide byte size in chunks keyword (:pr:`4434`) `Adam Beberg`_ 2653- Raise more informative error for histogram bins and range (:pr:`4430`) `James Bourbeau`_ 2654 2655DataFrame 2656^^^^^^^^^ 2657 2658- Lazily register more cudf functions and move to backends file (:pr:`4396`) `Matthew Rocklin`_ 2659- Fix ORC tests for pyarrow 0.12.0 (:pr:`4413`) `Jim Crist`_ 2660- rearrange_by_column: ensure that shuffle arg defaults to 'disk' if it's None in dask.config (:pr:`4414`) `George Sakkis`_ 2661- Implement filters for _read_pyarrow (:pr:`4415`) `George Sakkis`_ 2662- Avoid checking against types in is_dataframe_like (:pr:`4418`) `Matthew Rocklin`_ 2663- Pass username as 'user' when using pyarrow (:pr:`4438`) `Roma Sokolov`_ 2664 2665Delayed 2666^^^^^^^ 2667 2668- Fix DelayedAttr return value (:pr:`4440`) `Matthew Rocklin`_ 2669 2670Documentation 2671^^^^^^^^^^^^^ 2672 2673- Use SVG for pipeline graphic (:pr:`4406`) `John A Kirkham`_ 2674- Add doctest-modules to py.test documentation (:pr:`4427`) `Daniel Severo`_ 2675 2676Core 2677^^^^ 2678 2679- Work around psutil 5.5.0 not allowing pickling Process objects `Janne Vuorela`_ 2680 2681 26821.1.0 / 2019-01-18 2683------------------ 2684 2685Array 2686^^^^^ 2687 2688- Fix the average function when there is a masked array (:pr:`4236`) `Damien Garaud`_ 2689- Add allow_unknown_chunksizes to hstack and vstack (:pr:`4287`) `Paul Vecchio`_ 2690- Fix tensordot for 27+ dimensions (:pr:`4304`) `Johnnie Gray`_ 2691- Fixed block_info with axes. (:pr:`4301`) `Tom Augspurger`_ 2692- Use safe_wraps for matmul (:pr:`4346`) `Mark Harfouche`_ 2693- Use chunks="auto" in array creation routines (:pr:`4354`) `Matthew Rocklin`_ 2694- Fix np.matmul in dask.array.Array.__array_ufunc__ (:pr:`4363`) `Stephan Hoyer`_ 2695- COMPAT: Re-enable multifield copy->view change (:pr:`4357`) `Diane Trout`_ 2696- Calling np.dtype on a delayed object works (:pr:`4387`) `Jim Crist`_ 2697- Rework normalize_array for numpy data (:pr:`4312`) `Marco Neumann`_ 2698 2699DataFrame 2700^^^^^^^^^ 2701 2702- Add fill_value support for series comparisons (:pr:`4250`) `James Bourbeau`_ 2703- Add schema name in read_sql_table for empty tables (:pr:`4268`) `Mina Farid`_ 2704- Adjust check for bad chunks in map_blocks (:pr:`4308`) `Tom Augspurger`_ 2705- Add dask.dataframe.read_fwf (:pr:`4316`) `@slnguyen`_ 2706- Use atop fusion in dask dataframe (:pr:`4229`) `Matthew Rocklin`_ 2707- Use parallel_types() in from_pandas (:pr:`4331`) `Matthew Rocklin`_ 2708- Change DataFrame._repr_data to method (:pr:`4330`) `Matthew Rocklin`_ 2709- Install pyarrow fastparquet for Appveyor (:pr:`4338`) `Gábor Lipták`_ 2710- Remove explicit pandas checks and provide cudf lazy registration (:pr:`4359`) `Matthew Rocklin`_ 2711- Replace isinstance(..., pandas) with is_dataframe_like (:pr:`4375`) `Matthew Rocklin`_ 2712- ENH: Support 3rd-party ExtensionArrays (:pr:`4379`) `Tom Augspurger`_ 2713- Pandas 0.24.0 compat (:pr:`4374`) `Tom Augspurger`_ 2714 2715Documentation 2716^^^^^^^^^^^^^ 2717 2718- Fix link to 'map_blocks' function in array api docs (:pr:`4258`) `David Hoese`_ 2719- Add a paragraph on Dask-Yarn in the cloud docs (:pr:`4260`) `Jim Crist`_ 2720- Copy edit documentation (:pr:`4267`), (:pr:`4263`), (:pr:`4262`), (:pr:`4277`), (:pr:`4271`), (:pr:`4279`), (:pr:`4265`), (:pr:`4295`), (:pr:`4293`), (:pr:`4296`), (:pr:`4302`), (:pr:`4306`), (:pr:`4318`), (:pr:`4314`), (:pr:`4309`), (:pr:`4317`), (:pr:`4326`), (:pr:`4325`), (:pr:`4322`), (:pr:`4332`), (:pr:`4333`), `Miguel Farrajota`_ 2721- Fix typo in code example (:pr:`4272`) `Daniel Li`_ 2722- Doc: Update array-api.rst (:pr:`4259`) (:pr:`4282`) `Prabakaran Kumaresshan`_ 2723- Update hpc doc (:pr:`4266`) `Guillaume Eynard-Bontemps`_ 2724- Doc: Replace from_avro with read_avro in documents (:pr:`4313`) `Prabakaran Kumaresshan`_ 2725- Remove reference to "get" scheduler functions in docs (:pr:`4350`) `Matthew Rocklin`_ 2726- Fix typo in docstring (:pr:`4376`) `Daniel Saxton`_ 2727- Added documentation for dask.dataframe.merge (:pr:`4382`) `Jendrik Jördening`_ 2728 2729Core 2730^^^^ 2731 2732- Avoid recursion in dask.core.get (:pr:`4219`) `Matthew Rocklin`_ 2733- Remove verbose flag from pytest setup.cfg (:pr:`4281`) `Matthew Rocklin`_ 2734- Support Pytest 4.0 by specifying marks explicitly (:pr:`4280`) `Takahiro Kojima`_ 2735- Add High Level Graphs (:pr:`4092`) `Matthew Rocklin`_ 2736- Fix SerializableLock locked and acquire methods (:pr:`4294`) `Stephan Hoyer`_ 2737- Pin boto3 to earlier version in tests to avoid moto conflict (:pr:`4276`) `Martin Durant`_ 2738- Treat None as missing in config when updating (:pr:`4324`) `Matthew Rocklin`_ 2739- Update Appveyor to Python 3.6 (:pr:`4337`) `Gábor Lipták`_ 2740- Use parse_bytes more liberally in dask.dataframe/bytes/bag (:pr:`4339`) `Matthew Rocklin`_ 2741- Add a better error message when cloudpickle is missing (:pr:`4342`) `Mark Harfouche`_ 2742- Support pool= keyword argument in threaded/multiprocessing get functions (:pr:`4351`) `Matthew Rocklin`_ 2743- Allow updates from arbitrary Mappings in config.update, not only dicts. (:pr:`4356`) `Stuart Berg`_ 2744- Move dask/array/top.py code to dask/blockwise.py (:pr:`4348`) `Matthew Rocklin`_ 2745- Add has_parallel_type (:pr:`4395`) `Matthew Rocklin`_ 2746- CI: Update Appveyor (:pr:`4381`) `Tom Augspurger`_ 2747- Ignore non-readable config files (:pr:`4388`) `Jim Crist`_ 2748 2749 27501.0.0 / 2018-11-28 2751------------------ 2752 2753Array 2754^^^^^ 2755 2756- Add nancumsum/nancumprod unit tests (:pr:`4215`) `Guido Imperiale`_ 2757 2758DataFrame 2759^^^^^^^^^ 2760 2761- Add index to to_dask_dataframe docstring (:pr:`4232`) `James Bourbeau`_ 2762- Text and fix when appending categoricals with fastparquet (:pr:`4245`) `Martin Durant`_ 2763- Don't reread metadata when passing ParquetFile to read_parquet (:pr:`4247`) `Martin Durant`_ 2764 2765Documentation 2766^^^^^^^^^^^^^ 2767 2768- Copy edit documentation (:pr:`4222`) (:pr:`4224`) (:pr:`4228`) (:pr:`4231`) (:pr:`4230`) (:pr:`4234`) (:pr:`4235`) (:pr:`4254`) `Miguel Farrajota`_ 2769- Updated doc for the new scheduler keyword (:pr:`4251`) `@milesial`_ 2770 2771 2772Core 2773^^^^ 2774 2775- Avoid a few warnings (:pr:`4223`) `Matthew Rocklin`_ 2776- Remove dask.store module (:pr:`4221`) `Matthew Rocklin`_ 2777- Remove AUTHORS.md `Jim Crist`_ 2778 2779 27800.20.2 / 2018-11-15 2781------------------- 2782 2783Array 2784^^^^^ 2785 2786- Avoid fusing dependencies of atop reductions (:pr:`4207`) `Matthew Rocklin`_ 2787 2788Dataframe 2789^^^^^^^^^ 2790 2791- Improve memory footprint for dataframe correlation (:pr:`4193`) `Damien Garaud`_ 2792- Add empty DataFrame check to boundary_slice (:pr:`4212`) `James Bourbeau`_ 2793 2794 2795Documentation 2796^^^^^^^^^^^^^ 2797 2798- Copy edit documentation (:pr:`4197`) (:pr:`4204`) (:pr:`4198`) (:pr:`4199`) (:pr:`4200`) (:pr:`4202`) (:pr:`4209`) `Miguel Farrajota`_ 2799- Add stats module namespace (:pr:`4206`) `James Bourbeau`_ 2800- Fix link in dataframe documentation (:pr:`4208`) `James Bourbeau`_ 2801 2802 28030.20.1 / 2018-11-09 2804------------------- 2805 2806Array 2807^^^^^ 2808 2809- Only allocate the result space in wrapped_pad_func (:pr:`4153`) `John A Kirkham`_ 2810- Generalize expand_pad_width to expand_pad_value (:pr:`4150`) `John A Kirkham`_ 2811- Test da.pad with 2D linear_ramp case (:pr:`4162`) `John A Kirkham`_ 2812- Fix import for broadcast_to. (:pr:`4168`) `samc0de`_ 2813- Rewrite Dask Array's `pad` to add only new chunks (:pr:`4152`) `John A Kirkham`_ 2814- Validate index inputs to atop (:pr:`4182`) `Matthew Rocklin`_ 2815 2816Core 2817^^^^ 2818 2819- Dask.config set and get normalize underscores and hyphens (:pr:`4143`) `James Bourbeau`_ 2820- Only subs on core collections, not subclasses (:pr:`4159`) `Matthew Rocklin`_ 2821- Add block_size=0 option to HTTPFileSystem. (:pr:`4171`) `Martin Durant`_ 2822- Add traverse support for dataclasses (:pr:`4165`) `Armin Berres`_ 2823- Avoid optimization on sharedicts without dependencies (:pr:`4181`) `Matthew Rocklin`_ 2824- Update the pytest version for TravisCI (:pr:`4189`) `Damien Garaud`_ 2825- Use key_split rather than funcname in visualize names (:pr:`4160`) `Matthew Rocklin`_ 2826 2827Dataframe 2828^^^^^^^^^ 2829 2830- Add fix for DataFrame.__setitem__ for index (:pr:`4151`) `Anderson Banihirwe`_ 2831- Fix column choice when passing list of files to fastparquet (:pr:`4174`) `Martin Durant`_ 2832- Pass engine_kwargs from read_sql_table to sqlalchemy (:pr:`4187`) `Damien Garaud`_ 2833 2834Documentation 2835^^^^^^^^^^^^^ 2836 2837- Fix documentation in Delayed best practices example that returned an empty list (:pr:`4147`) `Jonathan Fraine`_ 2838- Copy edit documentation (:pr:`4164`) (:pr:`4175`) (:pr:`4185`) (:pr:`4192`) (:pr:`4191`) (:pr:`4190`) (:pr:`4180`) `Miguel Farrajota`_ 2839- Fix typo in docstring (:pr:`4183`) `Carlos Valiente`_ 2840 2841 28420.20.0 / 2018-10-26 2843------------------- 2844 2845Array 2846^^^^^ 2847 2848- Fuse Atop operations (:pr:`3998`), (:pr:`4081`) `Matthew Rocklin`_ 2849- Support da.asanyarray on dask dataframes (:pr:`4080`) `Matthew Rocklin`_ 2850- Remove unnecessary endianness check in datetime test (:pr:`4113`) `Elliott Sales de Andrade`_ 2851- Set name=False in array foo_like functions (:pr:`4116`) `Matthew Rocklin`_ 2852- Remove dask.array.ghost module (:pr:`4121`) `Matthew Rocklin`_ 2853- Fix use of getargspec in dask array (:pr:`4125`) `Stephan Hoyer`_ 2854- Adds dask.array.invert (:pr:`4127`), (:pr:`4131`) `Anderson Banihirwe`_ 2855- Raise informative error on arg-reduction on unknown chunksize (:pr:`4128`), (:pr:`4135`) `Matthew Rocklin`_ 2856- Normalize reversed slices in dask array (:pr:`4126`) `Matthew Rocklin`_ 2857 2858Bag 2859^^^ 2860 2861- Add bag.to_avro (:pr:`4076`) `Martin Durant`_ 2862 2863Core 2864^^^^ 2865 2866- Pull num_workers from config.get (:pr:`4086`), (:pr:`4093`) `James Bourbeau`_ 2867- Fix invalid escape sequences with raw strings (:pr:`4112`) `Elliott Sales de Andrade`_ 2868- Raise an error on the use of the get= keyword and set_options (:pr:`4077`) `Matthew Rocklin`_ 2869- Add import for Azure DataLake storage, and add docs (:pr:`4132`) `Martin Durant`_ 2870- Avoid collections.Mapping/Sequence (:pr:`4138`) `Matthew Rocklin`_ 2871 2872Dataframe 2873^^^^^^^^^ 2874 2875- Include index keyword in to_dask_dataframe (:pr:`4071`) `Matthew Rocklin`_ 2876- add support for duplicate column names (:pr:`4087`) `Jan Koch`_ 2877- Implement min_count for the DataFrame methods sum and prod (:pr:`4090`) `Bart Broere`_ 2878- Remove pandas warnings in concat (:pr:`4095`) `Matthew Rocklin`_ 2879- DataFrame.to_csv header option to only output headers in the first chunk (:pr:`3909`) `Rahul Vaidya`_ 2880- Remove Series.to_parquet (:pr:`4104`) `Justin Dennison`_ 2881- Avoid warnings and deprecated pandas methods (:pr:`4115`) `Matthew Rocklin`_ 2882- Swap 'old' and 'previous' when reporting append error (:pr:`4130`) `Martin Durant`_ 2883 2884Documentation 2885^^^^^^^^^^^^^ 2886 2887- Copy edit documentation (:pr:`4073`), (:pr:`4074`), (:pr:`4094`), (:pr:`4097`), (:pr:`4107`), (:pr:`4124`), (:pr:`4133`), (:pr:`4139`) `Miguel Farrajota`_ 2888- Fix typo in code example (:pr:`4089`) `Antonino Ingargiola`_ 2889- Add pycon 2018 presentation (:pr:`4102`) `Javad`_ 2890- Quick description for gcsfs (:pr:`4109`) `Martin Durant`_ 2891- Fixed typo in docstrings of read_sql_table method (:pr:`4114`) `TakaakiFuruse`_ 2892- Make target directories in redirects if they don't exist (:pr:`4136`) `Matthew Rocklin`_ 2893 2894 2895 28960.19.4 / 2018-10-09 2897------------------- 2898 2899Array 2900^^^^^ 2901 2902- Implement ``apply_gufunc(..., axes=..., keepdims=...)`` (:pr:`3985`) `Markus Gonser`_ 2903 2904Bag 2905^^^ 2906 2907- Fix typo in datasets.make_people (:pr:`4069`) `Matthew Rocklin`_ 2908 2909Dataframe 2910^^^^^^^^^ 2911 2912- Added `percentiles` options for `dask.dataframe.describe` method (:pr:`4067`) `Zhenqing Li`_ 2913- Add DataFrame.partitions accessor similar to Array.blocks (:pr:`4066`) `Matthew Rocklin`_ 2914 2915Core 2916^^^^ 2917 2918- Pass get functions and Clients through scheduler keyword (:pr:`4062`) `Matthew Rocklin`_ 2919 2920Documentation 2921^^^^^^^^^^^^^ 2922 2923- Fix Typo on hpc example. (missing `=` in kwarg). (:pr:`4068`) `Matthias Bussonier`_ 2924- Extensive copy-editing: (:pr:`4065`), (:pr:`4064`), (:pr:`4063`) `Miguel Farrajota`_ 2925 2926 29270.19.3 / 2018-10-05 2928------------------- 2929 2930Array 2931^^^^^ 2932 2933- Make da.RandomState extensible to other modules (:pr:`4041`) `Matthew Rocklin`_ 2934- Support unknown dims in ravel no-op case (:pr:`4055`) `Jim Crist`_ 2935- Add basic infrastructure for cupy (:pr:`4019`) `Matthew Rocklin`_ 2936- Avoid asarray and lock arguments for from_array(getitem) (:pr:`4044`) `Matthew Rocklin`_ 2937- Move local imports in `corrcoef` to global imports (:pr:`4030`) `John A Kirkham`_ 2938- Move local `indices` import to global import (:pr:`4029`) `John A Kirkham`_ 2939- Fix-up Dask Array's fromfunction w.r.t. dtype and kwargs (:pr:`4028`) `John A Kirkham`_ 2940- Don't use dummy expansion for trim_internal in overlapped (:pr:`3964`) `Mark Harfouche`_ 2941- Add unravel_index (:pr:`3958`) `John A Kirkham`_ 2942 2943Bag 2944^^^ 2945 2946- Sort result in Bag.frequencies (:pr:`4033`) `Matthew Rocklin`_ 2947- Add support for npartitions=1 edge case in groupby (:pr:`4050`) `James Bourbeau`_ 2948- Add new random dataset for people (:pr:`4018`) `Matthew Rocklin`_ 2949- Improve performance of bag.read_text on small files (:pr:`4013`) `Eric Wolak`_ 2950- Add bag.read_avro (:pr:`4000`) (:pr:`4007`) `Martin Durant`_ 2951 2952Dataframe 2953^^^^^^^^^ 2954 2955- Added an ``index`` parameter to :meth:`dask.dataframe.from_dask_array` for creating a dask DataFrame from a dask Array with a given index. (:pr:`3991`) `Tom Augspurger`_ 2956- Improve sub-classability of dask dataframe (:pr:`4015`) `Matthew Rocklin`_ 2957- Fix failing hdfs test [test-hdfs] (:pr:`4046`) `Jim Crist`_ 2958- fuse_subgraphs works without normal fuse (:pr:`4042`) `Jim Crist`_ 2959- Make path for reading many parquet files without prescan (:pr:`3978`) `Martin Durant`_ 2960- Index in dd.from_dask_array (:pr:`3991`) `Tom Augspurger`_ 2961- Making skiprows accept lists (:pr:`3975`) `Julia Signell`_ 2962- Fail early in fastparquet read for nonexistent column (:pr:`3989`) `Martin Durant`_ 2963 2964Core 2965^^^^ 2966 2967- Add support for npartitions=1 edge case in groupby (:pr:`4050`) `James Bourbeau`_ 2968- Automatically wrap large arguments with dask.delayed in map_blocks/partitions (:pr:`4002`) `Matthew Rocklin`_ 2969- Fuse linear chains of subgraphs (:pr:`3979`) `Jim Crist`_ 2970- Make multiprocessing context configurable (:pr:`3763`) `Itamar Turner-Trauring`_ 2971 2972Documentation 2973^^^^^^^^^^^^^ 2974 2975- Extensive copy-editing (:pr:`4049`), (:pr:`4034`), (:pr:`4031`), (:pr:`4020`), (:pr:`4021`), (:pr:`4022`), (:pr:`4023`), (:pr:`4016`), (:pr:`4017`), (:pr:`4010`), (:pr:`3997`), (:pr:`3996`), `Miguel Farrajota`_ 2976- Update shuffle method selection docs (:pr:`4048`) `James Bourbeau`_ 2977- Remove docs/source/examples, point to examples.dask.org (:pr:`4014`) `Matthew Rocklin`_ 2978- Replace readthedocs links with dask.org (:pr:`4008`) `Matthew Rocklin`_ 2979- Updates DataFrame.to_hdf docstring for returned values (:pr:`3992`) `James Bourbeau`_ 2980 2981 29820.19.2 / 2018-09-17 2983------------------- 2984 2985Array 2986^^^^^ 2987 2988- ``apply_gufunc`` implements automatic infer of functions output dtypes (:pr:`3936`) `Markus Gonser`_ 2989- Fix array histogram range error when array has nans (:pr:`3980`) `James Bourbeau`_ 2990- Issue 3937 follow up, int type checks. (:pr:`3956`) `Yu Feng`_ 2991- from_array: add @martindurant's explaining of how hashing is done for an array. (:pr:`3965`) `Mark Harfouche`_ 2992- Support gradient with coordinate (:pr:`3949`) `Keisuke Fujii`_ 2993 2994Core 2995^^^^ 2996 2997- Fix use of has_keyword with partial in Python 2.7 (:pr:`3966`) `Mark Harfouche`_ 2998- Set pyarrow as default for HDFS (:pr:`3957`) `Matthew Rocklin`_ 2999 3000Documentation 3001^^^^^^^^^^^^^ 3002 3003- Use dask_sphinx_theme (:pr:`3963`) `Matthew Rocklin`_ 3004- Use JupyterLab in Binder links from main page `Matthew Rocklin`_ 3005- DOC: fixed sphinx syntax (:pr:`3960`) `Tom Augspurger`_ 3006 3007 30080.19.1 / 2018-09-06 3009------------------- 3010 3011Array 3012^^^^^ 3013 3014- Don't enforce dtype if result has no dtype (:pr:`3928`) `Matthew Rocklin`_ 3015- Fix NumPy issubtype deprecation warning (:pr:`3939`) `Bruce Merry`_ 3016- Fix arg reduction tokens to be unique with different arguments (:pr:`3955`) `Tobias de Jong`_ 3017- Coerce numpy integers to ints in slicing code (:pr:`3944`) `Yu Feng`_ 3018- Linalg.norm ndim along axis partial fix (:pr:`3933`) `Tobias de Jong`_ 3019 3020Dataframe 3021^^^^^^^^^ 3022 3023- Deterministic DataFrame.set_index (:pr:`3867`) `George Sakkis`_ 3024- Fix divisions in read_parquet when dealing with filters #3831 #3930 (:pr:`3923`) (:pr:`3931`) `@andrethrill`_ 3025- Fixing returning type in categorical.as_known (:pr:`3888`) `Sriharsha Hatwar`_ 3026- Fix DataFrame.assign for callables (:pr:`3919`) `Tom Augspurger`_ 3027- Include partitions with no width in repartition (:pr:`3941`) `Matthew Rocklin`_ 3028- Don't constrict stage/k dtype in dataframe shuffle (:pr:`3942`) `Matthew Rocklin`_ 3029 3030Documentation 3031^^^^^^^^^^^^^ 3032 3033- DOC: Add hint on how to render task graphs horizontally (:pr:`3922`) `Uwe Korn`_ 3034- Add try-now button to main landing page (:pr:`3924`) `Matthew Rocklin`_ 3035 3036 30370.19.0 / 2018-08-29 3038------------------- 3039 3040Array 3041^^^^^ 3042 3043- Support coordinate in gradient (:pr:`3949`) `Keisuke Fujii`_ 3044- Fix argtopk split_every bug (:pr:`3810`) `Guido Imperiale`_ 3045- Ensure result computing dask.array.isnull() always gives a numpy array (:pr:`3825`) `Stephan Hoyer`_ 3046- Support concatenate for scipy.sparse in dask array (:pr:`3836`) `Matthew Rocklin`_ 3047- Fix argtopk on 32-bit systems. (:pr:`3823`) `Elliott Sales de Andrade`_ 3048- Normalize keys in rechunk (:pr:`3820`) `Matthew Rocklin`_ 3049- Allow shape of dask.array to be a numpy array (:pr:`3844`) `Mark Harfouche`_ 3050- Fix numpy deprecation warning on tuple indexing (:pr:`3851`) `Tobias de Jong`_ 3051- Rename ghost module to overlap (:pr:`3830`) `Robert Sare`_ 3052- Re-add the ghost import to da __init__ (:pr:`3861`) `Jim Crist`_ 3053- Ensure copy preserves masked arrays (:pr:`3852`) `Tobias de Jong`_ 3054 3055DataFrame 3056^^^^^^^^^^ 3057 3058- Added ``dtype`` and ``sparse`` keywords to :func:`dask.dataframe.get_dummies` (:pr:`3792`) `Tom Augspurger`_ 3059- Added :meth:`dask.dataframe.to_dask_array` for converting a Dask Series or DataFrame to a 3060 Dask Array, possibly with known chunk sizes (:pr:`3884`) `Tom Augspurger` 3061- Changed the behavior for :meth:`dask.array.asarray` for dask dataframe and series inputs. Previously, 3062 the series was eagerly converted to an in-memory NumPy array before creating a dask array with known 3063 chunks sizes. This caused unexpectedly high memory usage. Now, no intermediate NumPy array is created, 3064 and a Dask array with unknown chunk sizes is returned (:pr:`3884`) `Tom Augspurger` 3065- DataFrame.iloc (:pr:`3805`) `Tom Augspurger`_ 3066- When reading multiple paths, expand globs. (:pr:`3828`) `Irina Truong`_ 3067- Added index column name after resample (:pr:`3833`) `Eric Bonfadini`_ 3068- Add (lazy) shape property to dataframe and series (:pr:`3212`) `Henrique Ribeiro`_ 3069- Fix failing hdfs test [test-hdfs] (:pr:`3858`) `Jim Crist`_ 3070- Fixes for pyarrow 0.10.0 release (:pr:`3860`) `Jim Crist`_ 3071- Rename to_csv keys for diagnostics (:pr:`3890`) `Matthew Rocklin`_ 3072- Match pandas warnings for concat sort (:pr:`3897`) `Tom Augspurger`_ 3073- Include filename in read_csv (:pr:`3908`) `Julia Signell`_ 3074 3075Core 3076^^^^ 3077 3078- Better error message on import when missing common dependencies (:pr:`3771`) `Danilo Horta`_ 3079- Drop Python 3.4 support (:pr:`3840`) `Jim Crist`_ 3080- Remove expired deprecation warnings (:pr:`3841`) `Jim Crist`_ 3081- Add DASK_ROOT_CONFIG environment variable (:pr:`3849`) `Joe Hamman`_ 3082- Don't cull in local scheduler, do cull in delayed (:pr:`3856`) `Jim Crist`_ 3083- Increase conda download retries (:pr:`3857`) `Jim Crist`_ 3084- Add python_requires and Trove classifiers (:pr:`3855`) `@hugovk`_ 3085- Fix collections.abc deprecation warnings in Python 3.7.0 (:pr:`3876`) `Jan Margeta`_ 3086- Allow dot jpeg to xfail in visualize tests (:pr:`3896`) `Matthew Rocklin`_ 3087- Add Python 3.7 to travis.yml (:pr:`3894`) `Matthew Rocklin`_ 3088- Add expand_environment_variables to dask.config (:pr:`3893`) `Joe Hamman`_ 3089 3090Docs 3091^^^^ 3092 3093- Fix typo in import statement of diagnostics (:pr:`3826`) `John Mrziglod`_ 3094- Add link to YARN docs (:pr:`3838`) `Jim Crist`_ 3095- fix of minor typos in landing page index.html (:pr:`3746`) `Christoph Moehl`_ 3096- Update delayed-custom.rst (:pr:`3850`) `Anderson Banihirwe`_ 3097- DOC: clarify delayed docstring (:pr:`3709`) `Scott Sievert`_ 3098- Add new presentations (:pr:`3880`) `Javad`_ 3099- Add dask array normalize_chunks to documentation (:pr:`3878`) `Daniel Rothenberg`_ 3100- Docs: Fix link to snakeviz (:pr:`3900`) `Hans Moritz Günther`_ 3101- Add missing ` to docstring (:pr:`3915`) `@rtobar`_ 3102 3103 31040.18.2 / 2018-07-23 3105------------------- 3106 3107Array 3108^^^^^ 3109 3110- Reimplemented ``argtopk`` to make it release the GIL (:pr:`3610`) `Guido Imperiale`_ 3111- Don't overlap on non-overlapped dimensions in ``map_overlap`` (:pr:`3653`) `Matthew Rocklin`_ 3112- Fix ``linalg.tsqr`` for dimensions of uncertain length (:pr:`3662`) `Jeremy Chen`_ 3113- Break apart uneven array-of-int slicing to separate chunks (:pr:`3648`) `Matthew Rocklin`_ 3114- Align auto chunks to provided chunks, rather than shape (:pr:`3679`) `Matthew Rocklin`_ 3115- Adds endpoint and retstep support for linspace (:pr:`3675`) `James Bourbeau`_ 3116- Implement ``.blocks`` accessor (:pr:`3689`) `Matthew Rocklin`_ 3117- Add ``block_info`` keyword to ``map_blocks`` functions (:pr:`3686`) `Matthew Rocklin`_ 3118- Slice by dask array of ints (:pr:`3407`) `Guido Imperiale`_ 3119- Support ``dtype`` in ``arange`` (:pr:`3722`) `Guido Imperiale`_ 3120- Fix ``argtopk`` with uneven chunks (:pr:`3720`) `Guido Imperiale`_ 3121- Raise error when ``replace=False`` in ``da.choice`` (:pr:`3765`) `James Bourbeau`_ 3122- Update chunks in ``Array.__setitem__`` (:pr:`3767`) `Itamar Turner-Trauring`_ 3123- Add a ``chunksize`` convenience property (:pr:`3777`) `Jacob Tomlinson`_ 3124- Fix and simplify array slicing behavior when ``step < 0`` (:pr:`3702`) `Ziyao Wei`_ 3125- Ensure ``to_zarr`` with ``return_stored`` ``True`` returns a Dask Array (:pr:`3786`) `John A Kirkham`_ 3126 3127Bag 3128^^^ 3129 3130- Add ``last_endline`` optional parameter in ``to_textfiles`` (:pr:`3745`) `George Sakkis`_ 3131 3132Dataframe 3133^^^^^^^^^ 3134 3135- Add aggregate function for rolling objects (:pr:`3772`) `Gerome Pistre`_ 3136- Properly tokenize cumulative groupby aggregations (:pr:`3799`) `Cloves Almeida`_ 3137 3138Delayed 3139^^^^^^^ 3140 3141- Add the ``@`` operator to the delayed objects (:pr:`3691`) `Mark Harfouche`_ 3142- Add delayed best practices to documentation (:pr:`3737`) `Matthew Rocklin`_ 3143- Fix ``@delayed`` decorator for methods and add tests (:pr:`3757`) `Ziyao Wei`_ 3144 3145Core 3146^^^^ 3147 3148- Fix extra progressbar (:pr:`3669`) `Mike Neish`_ 3149- Allow tasks back onto ordering stack if they have one dependency (:pr:`3652`) `Matthew Rocklin`_ 3150- Prefer end-tasks with low numbers of dependencies when ordering (:pr:`3588`) `Tom Augspurger`_ 3151- Add ``assert_eq`` to top-level modules (:pr:`3726`) `Matthew Rocklin`_ 3152- Test that dask collections can hold ``scipy.sparse`` arrays (:pr:`3738`) `Matthew Rocklin`_ 3153- Fix setup of lz4 decompression functions (:pr:`3782`) `Elliott Sales de Andrade`_ 3154- Add datasets module (:pr:`3780`) `Matthew Rocklin`_ 3155 3156 31570.18.1 / 2018-06-22 3158------------------- 3159 3160Array 3161^^^^^ 3162 3163- ``from_array`` now supports scalar types and nested lists/tuples in input, 3164 just like all numpy functions do; it also produces a simpler graph when the 3165 input is a plain ndarray (:pr:`3568`) `Guido Imperiale`_ 3166- Fix slicing of big arrays due to cumsum dtype bug (:pr:`3620`) `Marco Rossi`_ 3167- Add Dask Array implementation of pad (:pr:`3578`) `John A Kirkham`_ 3168- Fix array random API examples (:pr:`3625`) `James Bourbeau`_ 3169- Add average function to dask array (:pr:`3640`) `James Bourbeau`_ 3170- Tokenize ghost_internal with axes (:pr:`3643`) `Matthew Rocklin`_ 3171- Add outer for Dask Arrays (:pr:`3658`) `John A Kirkham`_ 3172 3173DataFrame 3174^^^^^^^^^ 3175 3176- Add Index.to_series method (:pr:`3613`) `Henrique Ribeiro`_ 3177- Fix missing partition columns in pyarrow-parquet (:pr:`3636`) `Martin Durant`_ 3178 3179Core 3180^^^^ 3181 3182- Minor tweaks to CI (:pr:`3629`) `Guido Imperiale`_ 3183- Add back dask.utils.effective_get (:pr:`3642`) `Matthew Rocklin`_ 3184- DASK_CONFIG dictates config write location (:pr:`3621`) `Jim Crist`_ 3185- Replace 'collections' key in unpack_collections with unique key (:pr:`3632`) `Yu Feng`_ 3186- Avoid deepcopy in dask.config.set (:pr:`3649`) `Matthew Rocklin`_ 3187 3188 31890.18.0 / 2018-06-14 3190------------------- 3191 3192Array 3193^^^^^ 3194 3195- Add to/from_zarr for Zarr-format datasets and arrays (:pr:`3460`) `Martin Durant`_ 3196- Experimental addition of generalized ufunc support, ``apply_gufunc``, ``gufunc``, and 3197 ``as_gufunc`` (:pr:`3109`) (:pr:`3526`) (:pr:`3539`) `Markus Gonser`_ 3198- Avoid unnecessary rechunking tasks (:pr:`3529`) `Matthew Rocklin`_ 3199- Compute dtypes at runtime for fft (:pr:`3511`) `Matthew Rocklin`_ 3200- Generate UUIDs for all da.store operations (:pr:`3540`) `Martin Durant`_ 3201- Correct internal dimension of Dask's SVD (:pr:`3517`) `John A Kirkham`_ 3202- BUG: do not raise IndexError for identity slice in array.vindex (:pr:`3559`) `Scott Sievert`_ 3203- Adds `isneginf` and `isposinf` (:pr:`3581`) `John A Kirkham`_ 3204- Drop Dask Array's `learn` module (:pr:`3580`) `John A Kirkham`_ 3205- added sfqr (short-and-fat) as a counterpart to tsqr… (:pr:`3575`) `Jeremy Chen`_ 3206- Allow 0-width chunks in dask.array.rechunk (:pr:`3591`) `Marc Pfister`_ 3207- Document Dask Array's `nan_to_num` in public API (:pr:`3599`) `John A Kirkham`_ 3208- Show block example (:pr:`3601`) `John A Kirkham`_ 3209- Replace token= keyword with name= in map_blocks (:pr:`3597`) `Matthew Rocklin`_ 3210- Disable locking in to_zarr (needed for using to_zarr in a distributed context) (:pr:`3607`) `John A Kirkham`_ 3211- Support Zarr Arrays in `to_zarr`/`from_zarr` (:pr:`3561`) `John A Kirkham`_ 3212- Added recursion to array/linalg/tsqr to better manage the single core bottleneck (:pr:`3586`) `Jeremy Chan`_ 3213 (:pr:`3396`) `Guido Imperiale`_ 3214 3215Dataframe 3216^^^^^^^^^ 3217 3218- Add to/read_json (:pr:`3494`) `Martin Durant`_ 3219- Adds ``index`` to unsupported arguments for ``DataFrame.rename`` method (:pr:`3522`) `James Bourbeau`_ 3220- Adds support to subset Dask DataFrame columns using ``numpy.ndarray``, ``pandas.Series``, and 3221 ``pandas.Index`` objects (:pr:`3536`) `James Bourbeau`_ 3222- Raise error if meta columns do not match dataframe (:pr:`3485`) `Christopher Ren`_ 3223- Add index to unsupprted argument for DataFrame.rename (:pr:`3522`) `James Bourbeau`_ 3224- Adds support for subsetting DataFrames with pandas Index/Series and numpy ndarrays (:pr:`3536`) `James Bourbeau`_ 3225- Dataframe sample method docstring fix (:pr:`3566`) `James Bourbeau`_ 3226- fixes dd.read_json to infer file compression (:pr:`3594`) `Matt Lee`_ 3227- Adds n to sample method (:pr:`3606`) `James Bourbeau`_ 3228- Add fastparquet ParquetFile object support (:pr:`3573`) `@andrethrill`_ 3229 3230Bag 3231^^^ 3232 3233- Rename method= keyword to shuffle= in bag.groupby (:pr:`3470`) `Matthew Rocklin`_ 3234 3235Core 3236^^^^ 3237 3238- Replace get= keyword with scheduler= keyword (:pr:`3448`) `Matthew Rocklin`_ 3239- Add centralized dask.config module to handle configuration for all Dask 3240 subprojects (:pr:`3432`) (:pr:`3513`) (:pr:`3520`) `Matthew Rocklin`_ 3241- Add `dask-ssh` CLI Options and Description. (:pr:`3476`) `@beomi`_ 3242- Read whole files fix regardless of header for HTTP (:pr:`3496`) `Martin Durant`_ 3243- Adds synchronous scheduler syntax to debugging docs (:pr:`3509`) `James Bourbeau`_ 3244- Replace dask.set_options with dask.config.set (:pr:`3502`) `Matthew Rocklin`_ 3245- Update sphinx readthedocs-theme (:pr:`3516`) `Matthew Rocklin`_ 3246- Introduce "auto" value for normalize_chunks (:pr:`3507`) `Matthew Rocklin`_ 3247- Fix check in configuration with env=None (:pr:`3562`) `Simon Perkins`_ 3248- Update sizeof definitions (:pr:`3582`) `Matthew Rocklin`_ 3249- Remove --verbose flag from travis-ci (:pr:`3477`) `Matthew Rocklin`_ 3250- Remove "da.random" from random array keys (:pr:`3604`) `Matthew Rocklin`_ 3251 3252 32530.17.5 / 2018-05-16 3254------------------- 3255 3256Array 3257^^^^^ 3258 3259- Fix ``rechunk`` with chunksize of -1 in a dict (:pr:`3469`) `Stephan Hoyer`_ 3260- ``einsum`` now accepts the ``split_every`` parameter (:pr:`3471`) `Guido Imperiale`_ 3261- Improved slicing performance (:pr:`3479`) `Yu Feng`_ 3262 3263DataFrame 3264^^^^^^^^^ 3265 3266- Compatibility with pandas 0.23.0 (:pr:`3499`) `Tom Augspurger`_ 3267 3268 32690.17.4 / 2018-05-03 3270------------------- 3271 3272Dataframe 3273^^^^^^^^^ 3274 3275- Add support for indexing Dask DataFrames with string subclasses (:pr:`3461`) `James Bourbeau`_ 3276- Allow using both sorted_index and chunksize in read_hdf (:pr:`3463`) `Pierre Bartet`_ 3277- Pass filesystem to arrow piece reader (:pr:`3466`) `Martin Durant`_ 3278- Switches to using dask.compat string_types (:pr:`3462`) `James Bourbeau`_ 3279 3280 32810.17.3 / 2018-05-02 3282------------------- 3283 3284Array 3285^^^^^ 3286 3287- Add ``einsum`` for Dask Arrays (:pr:`3412`) `Simon Perkins`_ 3288- Add ``piecewise`` for Dask Arrays (:pr:`3350`) `John A Kirkham`_ 3289- Fix handling of ``nan`` in ``broadcast_shapes`` (:pr:`3356`) `John A Kirkham`_ 3290- Add ``isin`` for dask arrays (:pr:`3363`). `Stephan Hoyer`_ 3291- Overhauled ``topk`` for Dask Arrays: faster algorithm, particularly for large k's; added support 3292 for multiple axes, recursive aggregation, and an option to pick the bottom k elements instead. 3293 (:pr:`3395`) `Guido Imperiale`_ 3294- The ``topk`` API has changed from topk(k, array) to the more conventional topk(array, k). 3295 The legacy API still works but is now deprecated. (:pr:`2965`) `Guido Imperiale`_ 3296- New function ``argtopk`` for Dask Arrays (:pr:`3396`) `Guido Imperiale`_ 3297- Fix handling partial depth and boundary in ``map_overlap`` (:pr:`3445`) `John A Kirkham`_ 3298- Add ``gradient`` for Dask Arrays (:pr:`3434`) `John A Kirkham`_ 3299 3300DataFrame 3301^^^^^^^^^ 3302 3303- Allow `t` as shorthand for `table` in `to_hdf` for pandas compatibility (:pr:`3330`) `Jörg Dietrich`_ 3304- Added top level `isna` method for Dask DataFrames (:pr:`3294`) `Christopher Ren`_ 3305- Fix selection on partition column on ``read_parquet`` for ``engine="pyarrow"`` (:pr:`3207`) `Uwe Korn`_ 3306- Added DataFrame.squeeze method (:pr:`3366`) `Christopher Ren`_ 3307- Added `infer_divisions` option to ``read_parquet`` to specify whether read engines should compute divisions (:pr:`3387`) `Jon Mease`_ 3308- Added support for inferring division for ``engine="pyarrow"`` (:pr:`3387`) `Jon Mease`_ 3309- Provide more informative error message for meta= errors (:pr:`3343`) `Matthew Rocklin`_ 3310- add orc reader (:pr:`3284`) `Martin Durant`_ 3311- Default compression for parquet now always Snappy, in line with pandas (:pr:`3373`) `Martin Durant`_ 3312- Fixed bug in Dask DataFrame and Series comparisons with NumPy scalars (:pr:`3436`) `James Bourbeau`_ 3313- Remove outdated requirement from repartition docstring (:pr:`3440`) `Jörg Dietrich`_ 3314- Fixed bug in aggregation when only a Series is selected (:pr:`3446`) `Jörg Dietrich`_ 3315- Add default values to make_timeseries (:pr:`3421`) `Matthew Rocklin`_ 3316 3317Core 3318^^^^ 3319 3320- Support traversing collections in persist, visualize, and optimize (:pr:`3410`) `Jim Crist`_ 3321- Add schedule= keyword to compute and persist. This replaces common use of the get= keyword (:pr:`3448`) `Matthew Rocklin`_ 3322 3323 33240.17.2 / 2018-03-21 3325------------------- 3326 3327Array 3328^^^^^ 3329 3330- Add ``broadcast_arrays`` for Dask Arrays (:pr:`3217`) `John A Kirkham`_ 3331- Add ``bitwise_*`` ufuncs (:pr:`3219`) `John A Kirkham`_ 3332- Add optional ``axis`` argument to ``squeeze`` (:pr:`3261`) `John A Kirkham`_ 3333- Validate inputs to atop (:pr:`3307`) `Matthew Rocklin`_ 3334- Avoid calls to astype in concatenate if all parts have the same dtype (:pr:`3301`) `Martin Durant`_ 3335 3336DataFrame 3337^^^^^^^^^ 3338 3339- Fixed bug in shuffle due to aggressive truncation (:pr:`3201`) `Matthew Rocklin`_ 3340- Support specifying categorical columns on ``read_parquet`` with ``categories=[…]`` for ``engine="pyarrow"`` (:pr:`3177`) `Uwe Korn`_ 3341- Add ``dd.tseries.Resampler.agg`` (:pr:`3202`) `Richard Postelnik`_ 3342- Support operations that mix dataframes and arrays (:pr:`3230`) `Matthew Rocklin`_ 3343- Support extra Scalar and Delayed args in ``dd.groupby._Groupby.apply`` (:pr:`3256`) `Gabriele Lanaro`_ 3344 3345Bag 3346^^^ 3347 3348- Support joining against single-partitioned bags and delayed objects (:pr:`3254`) `Matthew Rocklin`_ 3349 3350Core 3351^^^^ 3352 3353- Fixed bug when using unexpected but hashable types for keys (:pr:`3238`) `Daniel Collins`_ 3354- Fix bug in task ordering so that we break ties consistently with the key name (:pr:`3271`) `Matthew Rocklin`_ 3355- Avoid sorting tasks in order when the number of tasks is very large (:pr:`3298`) `Matthew Rocklin`_ 3356 3357 33580.17.1 / 2018-02-22 3359------------------- 3360 3361Array 3362^^^^^ 3363 3364- Corrected dimension chunking in indices (:issue:`3166`, :pr:`3167`) `Simon Perkins`_ 3365- Inline ``store_chunk`` calls for ``store``'s ``return_stored`` option (:pr:`3153`) `John A Kirkham`_ 3366- Compatibility with struct dtypes for NumPy 1.14.1 release (:pr:`3187`) `Matthew Rocklin`_ 3367 3368DataFrame 3369^^^^^^^^^ 3370 3371- Bugfix to allow column assignment of pandas datetimes(:pr:`3164`) `Max Epstein`_ 3372 3373Core 3374^^^^ 3375 3376- New file-system for HTTP(S), allowing direct loading from specific URLs (:pr:`3160`) `Martin Durant`_ 3377- Fix bug when tokenizing partials with no keywords (:pr:`3191`) `Matthew Rocklin`_ 3378- Use more recent LZ4 API (:pr:`3157`) `Thrasibule`_ 3379- Introduce output stream parameter for progress bar (:pr:`3185`) `Dieter Weber`_ 3380 3381 33820.17.0 / 2018-02-09 3383------------------- 3384 3385Array 3386^^^^^ 3387 3388- Added a support object-type arrays for nansum, nanmin, and nanmax (:issue:`3133`) `Keisuke Fujii`_ 3389- Update error handling when len is called with empty chunks (:issue:`3058`) `Xander Johnson`_ 3390- Fixes a metadata bug with ``store``'s ``return_stored`` option (:pr:`3064`) `John A Kirkham`_ 3391- Fix a bug in ``optimization.fuse_slice`` to properly handle when first input is ``None`` (:pr:`3076`) `James Bourbeau`_ 3392- Support arrays with unknown chunk sizes in percentile (:pr:`3107`) `Matthew Rocklin`_ 3393- Tokenize scipy.sparse arrays and np.matrix (:pr:`3060`) `Roman Yurchak`_ 3394 3395DataFrame 3396^^^^^^^^^ 3397- Support month timedeltas in repartition(freq=...) (:pr:`3110`) `Matthew Rocklin`_ 3398- Avoid mutation in dataframe groupby tests (:pr:`3118`) `Matthew Rocklin`_ 3399- ``read_csv``, ``read_table``, and ``read_parquet`` accept iterables of paths 3400 (:pr:`3124`) `Jim Crist`_ 3401- Deprecates the ``dd.to_delayed`` *function* in favor of the existing method 3402 (:pr:`3126`) `Jim Crist`_ 3403- Return dask.arrays from df.map_partitions calls when the UDF returns a numpy array (:pr:`3147`) `Matthew Rocklin`_ 3404- Change handling of ``columns`` and ``index`` in ``dd.read_parquet`` to be more 3405 consistent, especially in handling of multi-indices (:pr:`3149`) `Jim Crist`_ 3406- fastparquet append=True allowed to create new dataset (:pr:`3097`) `Martin Durant`_ 3407- dtype rationalization for sql queries (:pr:`3100`) `Martin Durant`_ 3408 3409Bag 3410^^^ 3411 3412- Document ``bag.map_paritions`` function may receive either a list or generator. (:pr:`3150`) `Nir`_ 3413 3414Core 3415^^^^ 3416 3417- Change default task ordering to prefer nodes with few dependents and then 3418 many downstream dependencies (:pr:`3056`) `Matthew Rocklin`_ 3419- Add color= option to visualize to color by task order (:pr:`3057`) (:pr:`3122`) `Matthew Rocklin`_ 3420- Deprecate ``dask.bytes.open_text_files`` (:pr:`3077`) `Jim Crist`_ 3421- Remove short-circuit hdfs reads handling due to maintenance costs. May be 3422 re-added in a more robust manner later (:pr:`3079`) `Jim Crist`_ 3423- Add ``dask.base.optimize`` for optimizing multiple collections without 3424 computing. (:pr:`3071`) `Jim Crist`_ 3425- Rename ``dask.optimize`` module to ``dask.optimization`` (:pr:`3071`) `Jim Crist`_ 3426- Change task ordering to do a full traversal (:pr:`3066`) `Matthew Rocklin`_ 3427- Adds an ``optimize_graph`` keyword to all ``to_delayed`` methods to allow 3428 controlling whether optimizations occur on conversion. (:pr:`3126`) `Jim Crist`_ 3429- Support using ``pyarrow`` for hdfs integration (:pr:`3123`) `Jim Crist`_ 3430- Move HDFS integration and tests into dask repo (:pr:`3083`) `Jim Crist`_ 3431- Remove write_bytes (:pr:`3116`) `Jim Crist`_ 3432 3433 34340.16.1 / 2018-01-09 3435------------------- 3436 3437Array 3438^^^^^ 3439 3440- Fix handling of scalar percentile values in ``percentile`` (:pr:`3021`) `James Bourbeau`_ 3441- Prevent ``bool()`` coercion from calling compute (:pr:`2958`) `Albert DeFusco`_ 3442- Add ``matmul`` (:pr:`2904`) `John A Kirkham`_ 3443- Support N-D arrays with ``matmul`` (:pr:`2909`) `John A Kirkham`_ 3444- Add ``vdot`` (:pr:`2910`) `John A Kirkham`_ 3445- Explicit ``chunks`` argument for ``broadcast_to`` (:pr:`2943`) `Stephan Hoyer`_ 3446- Add ``meshgrid`` (:pr:`2938`) `John A Kirkham`_ and (:pr:`3001`) `Markus Gonser`_ 3447- Preserve singleton chunks in ``fftshift``/``ifftshift`` (:pr:`2733`) `John A Kirkham`_ 3448- Fix handling of negative indexes in ``vindex`` and raise errors for out of bounds indexes (:pr:`2967`) `Stephan Hoyer`_ 3449- Add ``flip``, ``flipud``, ``fliplr`` (:pr:`2954`) `John A Kirkham`_ 3450- Add ``float_power`` ufunc (:pr:`2962`) (:pr:`2969`) `John A Kirkham`_ 3451- Compatibility for changes to structured arrays in the upcoming NumPy 1.14 release (:pr:`2964`) `Tom Augspurger`_ 3452- Add ``block`` (:pr:`2650`) `John A Kirkham`_ 3453- Add ``frompyfunc`` (:pr:`3030`) `Jim Crist`_ 3454- Add the ``return_stored`` option to ``store`` for chaining stored results (:pr:`2980`) `John A Kirkham`_ 3455 3456DataFrame 3457^^^^^^^^^ 3458 3459- Fixed naming bug in cumulative aggregations (:issue:`3037`) `Martijn Arts`_ 3460- Fixed ``dd.read_csv`` when ``names`` is given but ``header`` is not set to ``None`` (:issue:`2976`) `Martijn Arts`_ 3461- Fixed ``dd.read_csv`` so that passing instances of ``CategoricalDtype`` in ``dtype`` will result in known categoricals (:pr:`2997`) `Tom Augspurger`_ 3462- Prevent ``bool()`` coercion from calling compute (:pr:`2958`) `Albert DeFusco`_ 3463- ``DataFrame.read_sql()`` (:pr:`2928`) to an empty database tables returns an empty dask dataframe `Apostolos Vlachopoulos`_ 3464- Compatibility for reading Parquet files written by PyArrow 0.8.0 (:pr:`2973`) `Tom Augspurger`_ 3465- Correctly handle the column name (`df.columns.name`) when reading in ``dd.read_parquet`` (:pr:`2973`) `Tom Augspurger`_ 3466- Fixed ``dd.concat`` losing the index dtype when the data contained a categorical (:issue:`2932`) `Tom Augspurger`_ 3467- Add ``dd.Series.rename`` (:pr:`3027`) `Jim Crist`_ 3468- ``DataFrame.merge()`` now supports merging on a combination of columns and the index (:pr:`2960`) `Jon Mease`_ 3469- Removed the deprecated ``dd.rolling*`` methods, in preparation for their removal in the next pandas release (:pr:`2995`) `Tom Augspurger`_ 3470- Fix metadata inference bug in which single-partition series were mistakenly special cased (:pr:`3035`) `Jim Crist`_ 3471- Add support for ``Series.str.cat`` (:pr:`3028`) `Jim Crist`_ 3472 3473Core 3474^^^^ 3475 3476- Improve 32-bit compatibility (:pr:`2937`) `Matthew Rocklin`_ 3477- Change task prioritization to avoid upwards branching (:pr:`3017`) `Matthew Rocklin`_ 3478 3479 34800.16.0 / 2017-11-17 3481------------------- 3482 3483This is a major release. It includes breaking changes, new protocols, and a 3484large number of bug fixes. 3485 3486Array 3487^^^^^ 3488 3489- Add ``atleast_1d``, ``atleast_2d``, and ``atleast_3d`` (:pr:`2760`) (:pr:`2765`) `John A Kirkham`_ 3490- Add ``allclose`` (:pr:`2771`) by `John A Kirkham`_ 3491- Remove ``random.different_seeds`` from Dask Array API docs (:pr:`2772`) `John A Kirkham`_ 3492- Deprecate ``vnorm`` in favor of ``dask.array.linalg.norm`` (:pr:`2773`) `John A Kirkham`_ 3493- Reimplement ``unique`` to be lazy (:pr:`2775`) `John A Kirkham`_ 3494- Support broadcasting of Dask Arrays with 0-length dimensions (:pr:`2784`) `John A Kirkham`_ 3495- Add ``asarray`` and ``asanyarray`` to Dask Array API docs (:pr:`2787`) `James Bourbeau`_ 3496- Support ``unique``'s ``return_*`` arguments (:pr:`2779`) `John A Kirkham`_ 3497- Simplify ``_unique_internal`` (:pr:`2850`) (:pr:`2855`) `John A Kirkham`_ 3498- Avoid removing some getter calls in array optimizations (:pr:`2826`) `Jim Crist`_ 3499 3500DataFrame 3501^^^^^^^^^ 3502 3503- Support ``pyarrow`` in ``dd.to_parquet`` (:pr:`2868`) `Jim Crist`_ 3504- Fixed ``DataFrame.quantile`` and ``Series.quantile`` returning ``nan`` when missing values are present (:pr:`2791`) `Tom Augspurger`_ 3505- Fixed ``DataFrame.quantile`` losing the result ``.name`` when ``q`` is a scalar (:pr:`2791`) `Tom Augspurger`_ 3506- Fixed ``dd.concat`` return a ``dask.Dataframe`` when concatenating a single series along the columns, matching pandas' behavior (:pr:`2800`) `James Munroe`_ 3507- Fixed default inplace parameter for ``DataFrame.eval`` to match the pandas defualt for pandas >= 0.21.0 (:pr:`2838`) `Tom Augspurger`_ 3508- Fix exception when calling ``DataFrame.set_index`` on text column where one of the partitions was empty (:pr:`2831`) `Jesse Vogt`_ 3509- Do not raise exception when calling ``DataFrame.set_index`` on empty dataframe (:pr:`2827`) `Jesse Vogt`_ 3510- Fixed bug in ``Dataframe.fillna`` when filling with a ``Series`` value (:pr:`2810`) `Tom Augspurger`_ 3511- Deprecate old argument ordering in ``dd.to_parquet`` to better match convention of putting the dataframe first (:pr:`2867`) `Jim Crist`_ 3512- df.astype(categorical_dtype -> known categoricals (:pr:`2835`) `Jim Crist`_ 3513- Test against Pandas release candidate (:pr:`2814`) `Tom Augspurger`_ 3514- Add more tests for read_parquet(engine='pyarrow') (:pr:`2822`) `Uwe Korn`_ 3515- Remove unnecessary map_partitions in aggregate (:pr:`2712`) `Christopher Prohm`_ 3516- Fix bug calling sample on empty partitions (:pr:`2818`) `@xwang777`_ 3517- Error nicely when parsing dates in read_csv (:pr:`2863`) `Jim Crist`_ 3518- Cleanup handling of passing filesystem objects to PyArrow readers (:pr:`2527`) `@fjetter`_ 3519- Support repartitioning even if there are no divisions (:pr:`2873`) `@Ced4`_ 3520- Support reading/writing to hdfs using ``pyarrow`` in ``dd.to_parquet`` (:pr:`2894`, :pr:`2881`) `Jim Crist`_ 3521 3522Core 3523^^^^ 3524 3525- Allow tuples as sharedict keys (:pr:`2763`) `Matthew Rocklin`_ 3526- Calling compute within a dask.distributed task defaults to distributed scheduler (:pr:`2762`) `Matthew Rocklin`_ 3527- Auto-import gcsfs when gcs:// protocol is used (:pr:`2776`) `Matthew Rocklin`_ 3528- Fully remove dask.async module, use dask.local instead (:pr:`2828`) `Thomas Caswell`_ 3529- Compatibility with bokeh 0.12.10 (:pr:`2844`) `Tom Augspurger`_ 3530- Reduce test memory usage (:pr:`2782`) `Jim Crist`_ 3531- Add Dask collection interface (:pr:`2748`) `Jim Crist`_ 3532- Update Dask collection interface during XArray integration (:pr:`2847`) `Matthew Rocklin`_ 3533- Close resource profiler process on __exit__ (:pr:`2871`) `Jim Crist`_ 3534- Fix S3 tests (:pr:`2875`) `Jim Crist`_ 3535- Fix port for bokeh dashboard in docs (:pr:`2889`) `Ian Hopkinson`_ 3536- Wrap Dask filesystems for PyArrow compatibility (:pr:`2881`) `Jim Crist`_ 3537 3538 35390.15.4 / 2017-10-06 3540------------------- 3541 3542Array 3543^^^^^ 3544 3545- ``da.random.choice`` now works with array arguments (:pr:`2781`) 3546- Support indexing in arrays with np.int (fixes regression) (:pr:`2719`) 3547- Handle zero dimension with rechunking (:pr:`2747`) 3548- Support -1 as an alias for "size of the dimension" in ``chunks`` (:pr:`2749`) 3549- Call mkdir in array.to_npy_stack (:pr:`2709`) 3550 3551DataFrame 3552^^^^^^^^^ 3553 3554- Added the `.str` accessor to Categoricals with string categories (:pr:`2743`) 3555- Support int96 (spark) datetimes in parquet writer (:pr:`2711`) 3556- Pass on file scheme to fastparquet (:pr:`2714`) 3557- Support Pandas 0.21 (:pr:`2737`) 3558 3559Bag 3560^^^ 3561 3562- Add tree reduction support for foldby (:pr:`2710`) 3563 3564 3565Core 3566^^^^ 3567 3568- Drop s3fs from ``pip install dask[complete]`` (:pr:`2750`) 3569 3570 35710.15.3 / 2017-09-24 3572------------------- 3573 3574Array 3575^^^^^ 3576 3577- Add masked arrays (:pr:`2301`) 3578- Add ``*_like array creation functions`` (:pr:`2640`) 3579- Indexing with unsigned integer array (:pr:`2647`) 3580- Improved slicing with boolean arrays of different dimensions (:pr:`2658`) 3581- Support literals in ``top`` and ``atop`` (:pr:`2661`) 3582- Optional axis argument in cumulative functions (:pr:`2664`) 3583- Improve tests on scalars with ``assert_eq`` (:pr:`2681`) 3584- Fix norm keepdims (:pr:`2683`) 3585- Add ``ptp`` (:pr:`2691`) 3586- Add apply_along_axis (:pr:`2690`) and apply_over_axes (:pr:`2702`) 3587 3588DataFrame 3589^^^^^^^^^ 3590 3591- Added ``Series.str[index]`` (:pr:`2634`) 3592- Allow the groupby by param to handle columns and index levels (:pr:`2636`) 3593- ``DataFrame.to_csv`` and ``Bag.to_textfiles`` now return the filenames to 3594 which they have written (:pr:`2655`) 3595- Fix combination of ``partition_on`` and ``append`` in ``to_parquet`` 3596 (:pr:`2645`) 3597- Fix for parquet file schemes (:pr:`2667`) 3598- Repartition works with mixed categoricals (:pr:`2676`) 3599 3600Core 3601^^^^ 3602 3603- ``python setup.py test`` now runs tests (:pr:`2641`) 3604- Added new cheatsheet (:pr:`2649`) 3605- Remove resize tool in Bokeh plots (:pr:`2688`) 3606 3607 36080.15.2 / 2017-08-25 3609------------------- 3610 3611Array 3612^^^^^ 3613 3614- Remove spurious keys from map_overlap graph (:pr:`2520`) 3615- where works with non-bool condition and scalar values (:pr:`2543`) (:pr:`2549`) 3616- Improve compress (:pr:`2541`) (:pr:`2545`) (:pr:`2555`) 3617- Add argwhere, _nonzero, and where(cond) (:pr:`2539`) 3618- Generalize vindex in dask.array to handle multi-dimensional indices (:pr:`2573`) 3619- Add choose method (:pr:`2584`) 3620- Split code into reorganized files (:pr:`2595`) 3621- Add linalg.norm (:pr:`2597`) 3622- Add diff, ediff1d (:pr:`2607`), (:pr:`2609`) 3623- Improve dtype inference and reflection (:pr:`2571`) 3624 3625Bag 3626^^^ 3627 3628- Remove deprecated Bag behaviors (:pr:`2525`) 3629 3630DataFrame 3631^^^^^^^^^ 3632 3633- Support callables in assign (:pr:`2513`) 3634- better error messages for read_csv (:pr:`2522`) 3635- Add dd.to_timedelta (:pr:`2523`) 3636- Verify metadata in from_delayed (:pr:`2534`) (:pr:`2591`) 3637- Add DataFrame.isin (:pr:`2558`) 3638- Read_hdf supports iterables of files (:pr:`2547`) 3639 3640Core 3641^^^^ 3642 3643- Remove bare ``except:`` blocks everywhere (:pr:`2590`) 3644 36450.15.1 / 2017-07-08 3646------------------- 3647 3648- Add storage_options to to_textfiles and to_csv (:pr:`2466`) 3649- Rechunk and simplify rfftfreq (:pr:`2473`), (:pr:`2475`) 3650- Better support ndarray subclasses (:pr:`2486`) 3651- Import star in dask.distributed (:pr:`2503`) 3652- Threadsafe cache handling with tokenization (:pr:`2511`) 3653 3654 36550.15.0 / 2017-06-09 3656------------------- 3657 3658Array 3659^^^^^ 3660 3661- Add dask.array.stats submodule (:pr:`2269`) 3662- Support ``ufunc.outer`` (:pr:`2345`) 3663- Optimize fancy indexing by reducing graph overhead (:pr:`2333`) (:pr:`2394`) 3664- Faster array tokenization using alternative hashes (:pr:`2377`) 3665- Added the matmul ``@`` operator (:pr:`2349`) 3666- Improved coverage of the ``numpy.fft`` module (:pr:`2320`) (:pr:`2322`) (:pr:`2327`) (:pr:`2323`) 3667- Support NumPy's ``__array_ufunc__`` protocol (:pr:`2438`) 3668 3669Bag 3670^^^ 3671 3672- Fix bug where reductions on bags with no partitions would fail (:pr:`2324`) 3673- Add broadcasting and variadic ``db.map`` top-level function. Also remove 3674 auto-expansion of tuples as map arguments (:pr:`2339`) 3675- Rename ``Bag.concat`` to ``Bag.flatten`` (:pr:`2402`) 3676 3677DataFrame 3678^^^^^^^^^ 3679 3680- Parquet improvements (:pr:`2277`) (:pr:`2422`) 3681 3682Core 3683^^^^ 3684 3685- Move dask.async module to dask.local (:pr:`2318`) 3686- Support callbacks with nested scheduler calls (:pr:`2397`) 3687- Support pathlib.Path objects as uris (:pr:`2310`) 3688 3689 36900.14.3 / 2017-05-05 3691------------------- 3692 3693DataFrame 3694^^^^^^^^^ 3695 3696- Pandas 0.20.0 support 3697 36980.14.2 / 2017-05-03 3699------------------- 3700 3701Array 3702^^^^^ 3703 3704- Add da.indices (:pr:`2268`), da.tile (:pr:`2153`), da.roll (:pr:`2135`) 3705- Simultaneously support drop_axis and new_axis in da.map_blocks (:pr:`2264`) 3706- Rechunk and concatenate work with unknown chunksizes (:pr:`2235`) and (:pr:`2251`) 3707- Support non-numpy container arrays, notably sparse arrays (:pr:`2234`) 3708- Tensordot contracts over multiple axes (:pr:`2186`) 3709- Allow delayed targets in da.store (:pr:`2181`) 3710- Support interactions against lists and tuples (:pr:`2148`) 3711- Constructor plugins for debugging (:pr:`2142`) 3712- Multi-dimensional FFTs (single chunk) (:pr:`2116`) 3713 3714Bag 3715^^^ 3716 3717- to_dataframe enforces consistent types (:pr:`2199`) 3718 3719DataFrame 3720^^^^^^^^^ 3721 3722- Set_index always fully sorts the index (:pr:`2290`) 3723- Support compatibility with pandas 0.20.0 (:pr:`2249`), (:pr:`2248`), and (:pr:`2246`) 3724- Support Arrow Parquet reader (:pr:`2223`) 3725- Time-based rolling windows (:pr:`2198`) 3726- Repartition can now create more partitions, not just less (:pr:`2168`) 3727 3728Core 3729^^^^ 3730 3731- Always use absolute paths when on POSIX file system (:pr:`2263`) 3732- Support user provided graph optimizations (:pr:`2219`) 3733- Refactor path handling (:pr:`2207`) 3734- Improve fusion performance (:pr:`2129`), (:pr:`2131`), and (:pr:`2112`) 3735 3736 37370.14.1 / 2017-03-22 3738------------------- 3739 3740Array 3741^^^^^ 3742 3743- Micro-optimize optimizations (:pr:`2058`) 3744- Change slicing optimizations to avoid fusing raw numpy arrays (:pr:`2075`) (:pr:`2080`) 3745- Dask.array operations now work on numpy arrays (:pr:`2079`) 3746- Reshape now works in a much broader set of cases (:pr:`2089`) 3747- Support deepcopy python protocol (:pr:`2090`) 3748- Allow user-provided FFT implementations in ``da.fft`` (:pr:`2093`) 3749 3750DataFrame 3751^^^^^^^^^ 3752 3753- Fix to_parquet with empty partitions (:pr:`2020`) 3754- Optional ``npartitions='auto'`` mode in ``set_index`` (:pr:`2025`) 3755- Optimize shuffle performance (:pr:`2032`) 3756- Support efficient repartitioning along time windows like ``repartition(freq='12h')`` (:pr:`2059`) 3757- Improve speed of categorize (:pr:`2010`) 3758- Support single-row dataframe arithmetic (:pr:`2085`) 3759- Automatically avoid shuffle when setting index with a sorted column (:pr:`2091`) 3760- Improve handling of integer-na handling in read_csv (:pr:`2098`) 3761 3762Delayed 3763^^^^^^^ 3764 3765- Repeated attribute access on delayed objects uses the same key (:pr:`2084`) 3766 3767Core 3768^^^^ 3769 3770- Improve naming of nodes in dot visuals to avoid generic ``apply`` 3771 (:pr:`2070`) 3772- Ensure that worker processes have different random seeds (:pr:`2094`) 3773 3774 37750.14.0 / 2017-02-24 3776------------------- 3777 3778Array 3779^^^^^ 3780 3781- Fix corner cases with zero shape and misaligned values in ``arange`` 3782 (:pr:`1902`), (:pr:`1904`), (:pr:`1935`), (:pr:`1955`), (:pr:`1956`) 3783- Improve concatenation efficiency (:pr:`1923`) 3784- Avoid hashing in ``from_array`` if name is provided (:pr:`1972`) 3785 3786Bag 3787^^^ 3788 3789- Repartition can now increase number of partitions (:pr:`1934`) 3790- Fix bugs in some reductions with empty partitions (:pr:`1939`), (:pr:`1950`), 3791 (:pr:`1953`) 3792 3793 3794DataFrame 3795^^^^^^^^^ 3796 3797- Support non-uniform categoricals (:pr:`1877`), (:pr:`1930`) 3798- Groupby cumulative reductions (:pr:`1909`) 3799- DataFrame.loc indexing now supports lists (:pr:`1913`) 3800- Improve multi-level groupbys (:pr:`1914`) 3801- Improved HTML and string repr for DataFrames (:pr:`1637`) 3802- Parquet append (:pr:`1940`) 3803- Add ``dd.demo.daily_stock`` function for teaching (:pr:`1992`) 3804 3805Delayed 3806^^^^^^^ 3807 3808- Add ``traverse=`` keyword to delayed to optionally avoid traversing nested 3809 data structures (:pr:`1899`) 3810- Support Futures in from_delayed functions (:pr:`1961`) 3811- Improve serialization of decorated delayed functions (:pr:`1969`) 3812 3813Core 3814^^^^ 3815 3816- Improve windows path parsing in corner cases (:pr:`1910`) 3817- Rename tasks when fusing (:pr:`1919`) 3818- Add top level ``persist`` function (:pr:`1927`) 3819- Propagate ``errors=`` keyword in byte handling (:pr:`1954`) 3820- Dask.compute traverses Python collections (:pr:`1975`) 3821- Structural sharing between graphs in dask.array and dask.delayed (:pr:`1985`) 3822 3823 38240.13.0 / 2017-01-02 3825------------------- 3826 3827Array 3828^^^^^ 3829 3830- Mandatory dtypes on dask.array. All operations maintain dtype information 3831 and UDF functions like map_blocks now require a dtype= keyword if it can not 3832 be inferred. (:pr:`1755`) 3833- Support arrays without known shapes, such as arises when slicing arrays with 3834 arrays or converting dataframes to arrays (:pr:`1838`) 3835- Support mutation by setting one array with another (:pr:`1840`) 3836- Tree reductions for covariance and correlations. (:pr:`1758`) 3837- Add SerializableLock for better use with distributed scheduling (:pr:`1766`) 3838- Improved atop support (:pr:`1800`) 3839- Rechunk optimization (:pr:`1737`), (:pr:`1827`) 3840 3841Bag 3842^^^ 3843 3844- Avoid wrong results when recomputing the same groupby twice (:pr:`1867`) 3845 3846DataFrame 3847^^^^^^^^^ 3848 3849- Add ``map_overlap`` for custom rolling operations (:pr:`1769`) 3850- Add ``shift`` (:pr:`1773`) 3851- Add Parquet support (:pr:`1782`) (:pr:`1792`) (:pr:`1810`), (:pr:`1843`), 3852 (:pr:`1859`), (:pr:`1863`) 3853- Add missing methods combine, abs, autocorr, sem, nsmallest, first, last, 3854 prod, (:pr:`1787`) 3855- Approximate nunique (:pr:`1807`), (:pr:`1824`) 3856- Reductions with multiple output partitions (for operations like 3857 drop_duplicates) (:pr:`1808`), (:pr:`1823`) (:pr:`1828`) 3858- Add delitem and copy to DataFrames, increasing mutation support (:pr:`1858`) 3859 3860Delayed 3861^^^^^^^ 3862 3863- Changed behaviour for ``delayed(nout=0)`` and ``delayed(nout=1)``: 3864 ``delayed(nout=1)`` does not default to ``out=None`` anymore, and 3865 ``delayed(nout=0)`` is also enabled. I.e. functions with return 3866 tuples of length 1 or 0 can be handled correctly. This is especially 3867 handy, if functions with a variable amount of outputs are wrapped by 3868 ``delayed``. E.g. a trivial example: 3869 ``delayed(lambda *args: args, nout=len(vals))(*vals)`` 3870 3871Core 3872^^^^ 3873 3874- Refactor core byte ingest (:pr:`1768`), (:pr:`1774`) 3875- Improve import time (:pr:`1833`) 3876 3877 38780.12.0 / 2016-11-03 3879------------------- 3880 3881DataFrame 3882^^^^^^^^^ 3883- Return a series when functions given to ``dataframe.map_partitions`` return 3884 scalars (:pr:`1515`) 3885- Fix type size inference for series (:pr:`1513`) 3886- ``dataframe.DataFrame.categorize`` no longer includes missing values 3887 in the ``categories``. This is for compatibility with a `pandas change <https://github.com/pydata/pandas/pull/10929>`_ (:pr:`1565`) 3888- Fix head parser error in ``dataframe.read_csv`` when some lines have quotes 3889 (:pr:`1495`) 3890- Add ``dataframe.reduction`` and ``series.reduction`` methods to apply generic 3891 row-wise reduction to dataframes and series (:pr:`1483`) 3892- Add ``dataframe.select_dtypes``, which mirrors the `pandas method <https://pandas.pydata.org/pandas-docs/version/0.18.1/generated/pandas.DataFrame.select_dtypes.html>`_ (:pr:`1556`) 3893- ``dataframe.read_hdf`` now supports reading ``Series`` (:pr:`1564`) 3894- Support Pandas 0.19.0 (:pr:`1540`) 3895- Implement ``select_dtypes`` (:pr:`1556`) 3896- String accessor works with indexes (:pr:`1561`) 3897- Add pipe method to dask.dataframe (:pr:`1567`) 3898- Add ``indicator`` keyword to merge (:pr:`1575`) 3899- Support Series in ``read_hdf`` (:pr:`1575`) 3900- Support Categories with missing values (:pr:`1578`) 3901- Support inplace operators like ``df.x += 1`` (:pr:`1585`) 3902- Str accessor passes through args and kwargs (:pr:`1621`) 3903- Improved groupby support for single-machine multiprocessing scheduler 3904 (:pr:`1625`) 3905- Tree reductions (:pr:`1663`) 3906- Pivot tables (:pr:`1665`) 3907- Add clip (:pr:`1667`), align (:pr:`1668`), combine_first (:pr:`1725`), and 3908 any/all (:pr:`1724`) 3909- Improved handling of divisions on dask-pandas merges (:pr:`1666`) 3910- Add ``groupby.aggregate`` method (:pr:`1678`) 3911- Add ``dd.read_table`` function (:pr:`1682`) 3912- Improve support for multi-level columns (:pr:`1697`) (:pr:`1712`) 3913- Support 2d indexing in ``loc`` (:pr:`1726`) 3914- Extend ``resample`` to include DataFrames (:pr:`1741`) 3915- Support dask.array ufuncs on dask.dataframe objects (:pr:`1669`) 3916 3917 3918Array 3919^^^^^ 3920- Add information about how ``dask.array`` ``chunks`` argument work (:pr:`1504`) 3921- Fix field access with non-scalar fields in ``dask.array`` (:pr:`1484`) 3922- Add concatenate= keyword to atop to concatenate chunks of contracted dimensions 3923- Optimized slicing performance (:pr:`1539`) (:pr:`1731`) 3924- Extend ``atop`` with a ``concatenate=`` (:pr:`1609`) ``new_axes=`` 3925 (:pr:`1612`) and ``adjust_chunks=`` (:pr:`1716`) keywords 3926- Add clip (:pr:`1610`) swapaxes (:pr:`1611`) round (:pr:`1708`) repeat 3927- Automatically align chunks in ``atop``-backed operations (:pr:`1644`) 3928- Cull dask.arrays on slicing (:pr:`1709`) 3929 3930Bag 3931^^^ 3932- Fix issue with callables in ``bag.from_sequence`` being interpreted as 3933 tasks (:pr:`1491`) 3934- Avoid non-lazy memory use in reductions (:pr:`1747`) 3935 3936Administration 3937^^^^^^^^^^^^^^ 3938 3939- Added changelog (:pr:`1526`) 3940- Create new threadpool when operating from thread (:pr:`1487`) 3941- Unify example documentation pages into one (:pr:`1520`) 3942- Add versioneer for git-commit based versions (:pr:`1569`) 3943- Pass through node_attr and edge_attr keywords in dot visualization 3944 (:pr:`1614`) 3945- Add continuous testing for Windows with Appveyor (:pr:`1648`) 3946- Remove use of multiprocessing.Manager (:pr:`1653`) 3947- Add global optimizations keyword to compute (:pr:`1675`) 3948- Micro-optimize get_dependencies (:pr:`1722`) 3949 3950 39510.11.0 / 2016-08-24 3952------------------- 3953 3954Major Points 3955^^^^^^^^^^^^ 3956 3957DataFrames now enforce knowing full metadata (columns, dtypes) everywhere. 3958Previously we would operate in an ambiguous state when functions lost dtype 3959information (such as ``apply``). Now all dataframes always know their dtypes 3960and raise errors asking for information if they are unable to infer (which 3961they usually can). Some internal attributes like ``_pd`` and 3962``_pd_nonempty`` have been moved. 3963 3964The internals of the distributed scheduler have been refactored to 3965transition tasks between explicit states. This improves resilience, 3966reasoning about scheduling, plugin operation, and logging. It also makes 3967the scheduler code easier to understand for newcomers. 3968 3969Breaking Changes 3970^^^^^^^^^^^^^^^^ 3971 3972- The ``distributed.s3`` and ``distributed.hdfs`` namespaces are gone. Use 3973 protocols in normal methods like ``read_text('s3://...'`` instead. 3974- ``Dask.array.reshape`` now errs in some cases where previously it would have 3975 create a very large number of tasks 3976 3977 39780.10.2 / 2016-07-27 3979------------------- 3980 3981- More Dataframe shuffles now work in distributed settings, ranging from 3982 setting-index to hash joins, to sorted joins and groupbys. 3983- Dask passes the full test suite when run when under in Python's 3984 optimized-OO mode. 3985- On-disk shuffles were found to produce wrong results in some 3986 highly-concurrent situations, especially on Windows. This has been resolved 3987 by a fix to the partd library. 3988- Fixed a growth of open file descriptors that occurred under large data 3989 communications 3990- Support ports in the ``--bokeh-whitelist`` option ot dask-scheduler to better 3991 routing of web interface messages behind non-trivial network settings 3992- Some improvements to resilience to worker failure (though other known 3993 failures persist) 3994- You can now start an IPython kernel on any worker for improved debugging and 3995 analysis 3996- Improvements to ``dask.dataframe.read_hdf``, especially when reading from 3997 multiple files and docs 3998 3999 40000.10.0 / 2016-06-13 4001------------------- 4002 4003Major Changes 4004^^^^^^^^^^^^^ 4005 4006- This version drops support for Python 2.6 4007- Conda packages are built and served from conda-forge 4008- The ``dask.distributed`` executables have been renamed from dfoo to dask-foo. 4009 For example dscheduler is renamed to dask-scheduler 4010- Both Bag and DataFrame include a preliminary distributed shuffle. 4011 4012Bag 4013^^^ 4014 4015- Add task-based shuffle for distributed groupbys 4016- Add accumulate for cumulative reductions 4017 4018DataFrame 4019^^^^^^^^^ 4020 4021- Add a task-based shuffle suitable for distributed joins, groupby-applys, and 4022 set_index operations. The single-machine shuffle remains untouched (and 4023 much more efficient.) 4024- Add support for new Pandas rolling API with improved communication 4025 performance on distributed systems. 4026- Add ``groupby.std/var`` 4027- Pass through S3/HDFS storage options in ``read_csv`` 4028- Improve categorical partitioning 4029- Add eval, info, isnull, notnull for dataframes 4030 4031Distributed 4032^^^^^^^^^^^ 4033 4034- Rename executables like dscheduler to dask-scheduler 4035- Improve scheduler performance in the many-fast-tasks case (important for 4036 shuffling) 4037- Improve work stealing to be aware of expected function run-times and data 4038 sizes. The drastically increases the breadth of algorithms that can be 4039 efficiently run on the distributed scheduler without significant user 4040 expertise. 4041- Support maximum buffer sizes in streaming queues 4042- Improve Windows support when using the Bokeh diagnostic web interface 4043- Support compression of very-large-bytestrings in protocol 4044- Support clean cancellation of submitted futures in Joblib interface 4045 4046Other 4047^^^^^ 4048 4049- All dask-related projects (dask, distributed, s3fs, hdfs, partd) are now 4050 building conda packages on conda-forge. 4051- Change credential handling in s3fs to only pass around delegated credentials 4052 if explicitly given secret/key. The default now is to rely on managed 4053 environments. This can be changed back by explicitly providing a keyword 4054 argument. Anonymous mode must be explicitly declared if desired. 4055 4056 40570.9.0 / 2016-05-11 4058------------------ 4059 4060API Changes 4061^^^^^^^^^^^ 4062 4063- ``dask.do`` and ``dask.value`` have been renamed to ``dask.delayed`` 4064- ``dask.bag.from_filenames`` has been renamed to ``dask.bag.read_text`` 4065- All S3/HDFS data ingest functions like ``db.from_s3`` or 4066 ``distributed.s3.read_csv`` have been moved into the plain ``read_text``, 4067 ``read_csv functions``, which now support protocols, like 4068 ``dd.read_csv('s3://bucket/keys*.csv')`` 4069 4070Array 4071^^^^^ 4072 4073- Add support for ``scipy.LinearOperator`` 4074- Improve optional locking to on-disk data structures 4075- Change rechunk to expose the intermediate chunks 4076 4077Bag 4078^^^ 4079 4080- Rename ``from_filename``\ s to ``read_text`` 4081- Remove ``from_s3`` in favor of ``read_text('s3://...')`` 4082 4083DataFrame 4084^^^^^^^^^ 4085 4086- Fixed numerical stability issue for correlation and covariance 4087- Allow no-hash ``from_pandas`` for speedy round-trips to and from-pandas 4088 objects 4089- Generally reengineered ``read_csv`` to be more in line with Pandas behavior 4090- Support fast ``set_index`` operations for sorted columns 4091 4092Delayed 4093^^^^^^^ 4094 4095- Rename ``do/value`` to ``delayed`` 4096- Rename ``to/from_imperative`` to ``to/from_delayed`` 4097 4098Distributed 4099^^^^^^^^^^^ 4100 4101- Move s3 and hdfs functionality into the dask repository 4102- Adaptively oversubscribe workers for very fast tasks 4103- Improve PyPy support 4104- Improve work stealing for unbalanced workers 4105- Scatter data efficiently with tree-scatters 4106 4107Other 4108^^^^^ 4109 4110- Add lzma/xz compression support 4111- Raise a warning when trying to split unsplittable compression types, like 4112 gzip or bz2 4113- Improve hashing for single-machine shuffle operations 4114- Add new callback method for start state 4115- General performance tuning 4116 4117 41180.8.1 / 2016-03-11 4119------------------ 4120 4121Array 4122^^^^^ 4123 4124- Bugfix for range slicing that could periodically lead to incorrect results. 4125- Improved support and resiliency of ``arg`` reductions (``argmin``, ``argmax``, etc.) 4126 4127Bag 4128^^^ 4129 4130- Add ``zip`` function 4131 4132DataFrame 4133^^^^^^^^^ 4134 4135- Add ``corr`` and ``cov`` functions 4136- Add ``melt`` function 4137- Bugfixes for io to bcolz and hdf5 4138 4139 41400.8.0 / 2016-02-20 4141------------------ 4142 4143Array 4144^^^^^ 4145 4146- Changed default array reduction split from 32 to 4 4147- Linear algebra, ``tril``, ``triu``, ``LU``, ``inv``, ``cholesky``, 4148 ``solve``, ``solve_triangular``, ``eye``, ``lstsq``, ``diag``, ``corrcoef``. 4149 4150Bag 4151^^^ 4152 4153- Add tree reductions 4154- Add range function 4155- drop ``from_hdfs`` function (better functionality now exists in hdfs3 and 4156 distributed projects) 4157 4158DataFrame 4159^^^^^^^^^ 4160 4161- Refactor ``dask.dataframe`` to include a full empty pandas dataframe as 4162 metadata. Drop the ``.columns`` attribute on Series 4163- Add Series categorical accessor, series.nunique, drop the ``.columns`` 4164 attribute for series. 4165- ``read_csv`` fixes (multi-column parse_dates, integer column names, etc. ) 4166- Internal changes to improve graph serialization 4167 4168Other 4169^^^^^ 4170 4171- Documentation updates 4172- Add from_imperative and to_imperative functions for all collections 4173- Aesthetic changes to profiler plots 4174- Moved the dask project to a new dask organization 4175 4176 41770.7.6 / 2016-01-05 4178------------------ 4179 4180Array 4181^^^^^ 4182- Improve thread safety 4183- Tree reductions 4184- Add ``view``, ``compress``, ``hstack``, ``dstack``, ``vstack`` methods 4185- ``map_blocks`` can now remove and add dimensions 4186 4187DataFrame 4188^^^^^^^^^ 4189- Improve thread safety 4190- Extend sampling to include replacement options 4191 4192Imperative 4193^^^^^^^^^^ 4194- Removed optimization passes that fused results. 4195 4196Core 4197^^^^ 4198 4199- Removed ``dask.distributed`` 4200- Improved performance of blocked file reading 4201- Serialization improvements 4202- Test Python 3.5 4203 4204 42050.7.4 / 2015-10-23 4206------------------ 4207 4208This was mostly a bugfix release. Some notable changes: 4209 4210- Fix minor bugs associated with the release of numpy 1.10 and pandas 0.17 4211- Fixed a bug with random number generation that would cause repeated blocks 4212 due to the birthday paradox 4213- Use locks in ``dask.dataframe.read_hdf`` by default to avoid concurrency 4214 issues 4215- Change ``dask.get`` to point to ``dask.async.get_sync`` by default 4216- Allow visualization functions to accept general graphviz graph options like 4217 rankdir='LR' 4218- Add reshape and ravel to ``dask.array`` 4219- Support the creation of ``dask.arrays`` from ``dask.imperative`` objects 4220 4221Deprecation 4222^^^^^^^^^^^ 4223 4224This release also includes a deprecation warning for ``dask.distributed``, which 4225will be removed in the next version. 4226 4227Future development in distributed computing for dask is happening here: 4228https://distributed.dask.org . General feedback on that project is most 4229welcome from this community. 4230 4231 42320.7.3 / 2015-09-25 4233------------------ 4234 4235Diagnostics 4236^^^^^^^^^^^ 4237- A utility for profiling memory and cpu usage has been added to the 4238 ``dask.diagnostics`` module. 4239 4240DataFrame 4241^^^^^^^^^ 4242This release improves coverage of the pandas API. Among other things 4243it includes ``nunique``, ``nlargest``, ``quantile``. Fixes encoding issues 4244with reading non-ascii csv files. Performance improvements and bug fixes 4245with resample. More flexible read_hdf with globbing. And many more. Various 4246bug fixes in ``dask.imperative`` and ``dask.bag``. 4247 4248 42490.7.0 / 2015-08-15 4250------------------ 4251 4252DataFrame 4253^^^^^^^^^ 4254This release includes significant bugfixes and alignment with the Pandas API. 4255This has resulted both from use and from recent involvement by Pandas core 4256developers. 4257 4258- New operations: query, rolling operations, drop 4259- Improved operations: quantiles, arithmetic on full dataframes, dropna, 4260 constructor logic, merge/join, elemwise operations, groupby aggregations 4261 4262Bag 4263^^^ 4264- Fixed a bug in fold where with a null default argument 4265 4266Array 4267^^^^^ 4268- New operations: da.fft module, da.image.imread 4269 4270Infrastructure 4271^^^^^^^^^^^^^^ 4272- The array and dataframe collections create graphs with deterministic keys. 4273 These tend to be longer (hash strings) but should be consistent between 4274 computations. This will be useful for caching in the future. 4275- All collections (Array, Bag, DataFrame) inherit from common subclass 4276 4277 42780.6.1 / 2015-07-23 4279------------------ 4280 4281Distributed 4282^^^^^^^^^^^ 4283- Improved (though not yet sufficient) resiliency for ``dask.distributed`` 4284 when workers die 4285 4286DataFrame 4287^^^^^^^^^ 4288- Improved writing to various formats, including to_hdf, to_castra, and 4289 to_csv 4290- Improved creation of dask DataFrames from dask Arrays and Bags 4291- Improved support for categoricals and various other methods 4292 4293Array 4294^^^^^ 4295- Various bug fixes 4296- Histogram function 4297 4298Scheduling 4299^^^^^^^^^^ 4300- Added tie-breaking ordering of tasks within parallel workloads to 4301 better handle and clear intermediate results 4302 4303Other 4304^^^^^ 4305- Added the dask.do function for explicit construction of graphs with 4306 normal python code 4307- Traded pydot for graphviz library for graph printing to support Python3 4308- There is also a gitter chat room and a stackoverflow tag 4309 4310 4311.. _`Guido Imperiale`: https://github.com/crusaderky 4312.. _`John A Kirkham`: https://github.com/jakirkham 4313.. _`Matthew Rocklin`: https://github.com/mrocklin 4314.. _`Jim Crist`: https://github.com/jcrist 4315.. _`James Bourbeau`: https://github.com/jrbourbeau 4316.. _`James Munroe`: https://github.com/jmunroe 4317.. _`Thomas Caswell`: https://github.com/tacaswell 4318.. _`Tom Augspurger`: https://github.com/tomaugspurger 4319.. _`Uwe Korn`: https://github.com/xhochy 4320.. _`Christopher Prohm`: https://github.com/chmp 4321.. _`@xwang777`: https://github.com/xwang777 4322.. _`@fjetter`: https://github.com/fjetter 4323.. _`@Ced4`: https://github.com/Ced4 4324.. _`Ian Hopkinson`: https://github.com/IanHopkinson 4325.. _`Stephan Hoyer`: https://github.com/shoyer 4326.. _`Albert DeFusco`: https://github.com/AlbertDeFusco 4327.. _`Markus Gonser`: https://github.com/magonser 4328.. _`Martijn Arts`: 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