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DOC: add contributors to 1.4 release notes #45196

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DOC: add contributors to 1.4 release notes
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36 changes: 5 additions & 31 deletions doc/source/whatsnew/v1.4.0.rst
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
.. _whatsnew_140:

What's new in 1.4.0 (??)
------------------------
What's new in 1.4.0 (January ??, 2022)
--------------------------------------

These are the changes in pandas 1.4.0. See :ref:`release` for a full changelog
including other versions of pandas.
Expand Down Expand Up @@ -213,8 +213,7 @@ Other enhancements
- :meth:`Timestamp.isoformat`, now handles the ``timespec`` argument from the base :class:``datetime`` class (:issue:`26131`)
- :meth:`NaT.to_numpy` ``dtype`` argument is now respected, so ``np.timedelta64`` can be returned (:issue:`44460`)
- New option ``display.max_dir_items`` customizes the number of columns added to :meth:`Dataframe.__dir__` and suggested for tab completion (:issue:`37996`)
- Added "Juneteenth National Independence Day" to
``USFederalHolidayCalendar``. See also `Other API changes`_.
- Added "Juneteenth National Independence Day" to ``USFederalHolidayCalendar``. See also `Other API changes`_.
- :meth:`.Rolling.var`, :meth:`.Expanding.var`, :meth:`.Rolling.std`, :meth:`.Expanding.std` now support `Numba <http://numba.pydata.org/>`_ execution with the ``engine`` keyword (:issue:`44461`)
- :meth:`Series.info` has been added, for compatibility with :meth:`DataFrame.info` (:issue:`5167`)
- Implemented :meth:`IntervalArray.min`, :meth:`IntervalArray.max`, as a result of which ``min`` and ``max`` now work for :class:`IntervalIndex`, :class:`Series` and :class:`DataFrame` with ``IntervalDtype`` (:issue:`44746`)
Expand All @@ -226,7 +225,6 @@ Other enhancements
- Add support for `Zstandard <http://facebook.github.io/zstd/>`_ compression to :meth:`DataFrame.to_pickle`/:meth:`read_pickle` and friends (:issue:`43925`)
- :meth:`DataFrame.to_sql` now returns an ``int`` of the number of written rows (:issue:`23998`)


.. ---------------------------------------------------------------------------

.. _whatsnew_140.notable_bug_fixes:
Expand Down Expand Up @@ -631,8 +629,6 @@ Other Deprecations
- Deprecated the behavior of :meth:`Timestamp.utcfromtimestamp`, in the future it will return a timezone-aware UTC :class:`Timestamp` (:issue:`22451`)
- Deprecated :meth:`NaT.freq` (:issue:`45071`)
- Deprecated behavior of :class:`Series` and :class:`DataFrame` construction when passed float-dtype data containing ``NaN`` and an integer dtype ignoring the dtype argument; in a future version this will raise (:issue:`40110`)
-


.. ---------------------------------------------------------------------------

Expand Down Expand Up @@ -689,7 +685,6 @@ Performance improvements
- Performance improvement in :func:`concat` (:issue:`43354`)
- Performance improvement in :meth:`SparseArray.__getitem__` (:issue:`23122`)
- Performance improvement in constructing a :class:`DataFrame` from array-like objects like a ``Pytorch`` tensor (:issue:`44616`)
-

.. ---------------------------------------------------------------------------

Expand All @@ -706,7 +701,6 @@ Categorical
- Bug in :meth:`Series.where` with ``CategoricalDtype`` when passing a dtype-incompatible value raising ``ValueError`` instead of ``TypeError`` (:issue:`41919`)
- Bug in :meth:`Categorical.fillna` when passing a dtype-incompatible value raising ``ValueError`` instead of ``TypeError`` (:issue:`41919`)
- Bug in :meth:`Categorical.fillna` with a tuple-like category raising ``ValueError`` instead of ``TypeError`` when filling with a non-category tuple (:issue:`41919`)
-

Datetimelike
^^^^^^^^^^^^
Expand All @@ -726,21 +720,18 @@ Datetimelike
- Bug in :meth:`Timestamp.fromtimestamp` not supporting the ``tz`` argument (:issue:`45083`)
- Bug in :class:`DataFrame` construction from dict of :class:`Series` with mismatched index dtypes sometimes raising depending on the ordering of the passed dict (:issue:`44091`)
- Bug in :class:`Timestamp` hashing during some DST transitions caused a segmentation fault (:issue:`33931` and :issue:`40817`)
-

Timedelta
^^^^^^^^^
- Bug in division of all-``NaT`` :class:`TimeDeltaIndex`, :class:`Series` or :class:`DataFrame` column with object-dtype arraylike of numbers failing to infer the result as timedelta64-dtype (:issue:`39750`)
- Bug in floor division of ``timedelta64[ns]`` data with a scalar returning garbage values (:issue:`44466`)
- Bug in :class:`Timedelta` now properly taking into account any nanoseconds contribution of any kwarg (:issue:`43764`)
-

Timezones
^^^^^^^^^
- Bug in :func:`to_datetime` with ``infer_datetime_format=True`` failing to parse zero UTC offset (``Z``) correctly (:issue:`41047`)
- Bug in :meth:`Series.dt.tz_convert` resetting index in a :class:`Series` with :class:`CategoricalIndex` (:issue:`43080`)
- Bug in ``Timestamp`` and ``DatetimeIndex`` incorrectly raising a ``TypeError`` when subtracting two timezone-aware objects with mismatched timezones (:issue:`31793`)
-

Numeric
^^^^^^^
Expand All @@ -753,7 +744,6 @@ Numeric
- Bug in arithmetic operations involving :class:`Series` where the result could have the incorrect ``name`` when the operands having matching NA or matching tuple names (:issue:`44459`)
- Bug in division with ``IntegerDtype`` or ``BooleanDtype`` array and NA scalar incorrectly raising (:issue:`44685`)
- Bug in multiplying a :class:`Series` with ``FloatingDtype`` with a timedelta-like scalar incorrectly raising (:issue:`44772`)
-

Conversion
^^^^^^^^^^
Expand All @@ -767,18 +757,14 @@ Conversion
- Bug in :meth:`DataFrame.convert_dtypes` result losing ``columns.names`` (:issue:`41435`)
- Bug in constructing a ``IntegerArray`` from pyarrow data failing to validate dtypes (:issue:`44891`)
- Bug in :meth:`Series.astype` not allowing converting from a ``PeriodDtype`` to ``datetime64`` dtype, inconsistent with the :class:`PeriodIndex` behavior (:issue:`45038`)
-

Strings
^^^^^^^
- Fixed bug in checking for ``string[pyarrow]`` dtype incorrectly raising an ImportError when pyarrow is not installed (:issue:`44276`)
-

Interval
^^^^^^^^
- Bug in :meth:`Series.where` with ``IntervalDtype`` incorrectly raising when the ``where`` call should not replace anything (:issue:`44181`)
-
-

Indexing
^^^^^^^^
Expand Down Expand Up @@ -818,7 +804,6 @@ Indexing
- Bug in :meth:`Series.__getitem__` with a :class:`CategoricalIndex` of integers treating lists of integers as positional indexers, inconsistent with the behavior with a single scalar integer (:issue:`15470`, :issue:`14865`)
- Bug in :meth:`Series.__setitem__` when setting floats or integers into integer-dtype series failing to upcast when necessary to retain precision (:issue:`45121`)
- Bug in :meth:`DataFrame.iloc.__setitem__` ignores axis argument (:issue:`45032`)
-

Missing
^^^^^^^
Expand All @@ -829,7 +814,6 @@ Missing
- Bug in :meth:`Index.fillna` incorrectly returning an un-filled :class:`Index` when NA values are present and ``downcast`` argument is specified. This now raises ``NotImplementedError`` instead; do not pass ``downcast`` argument (:issue:`44873`)
- Bug in :meth:`DataFrame.dropna` changing :class:`Index` even if no entries were dropped (:issue:`41965`)
- Bug in :meth:`Series.fillna` with an object-dtype incorrectly ignoring ``downcast="infer"`` (:issue:`44241`)
-

MultiIndex
^^^^^^^^^^
Expand All @@ -839,7 +823,6 @@ MultiIndex
- Bug in :meth:`MultiIndex.union` setting wrong ``sortorder`` causing errors in subsequent indexing operations with slices (:issue:`44752`)
- Bug in :meth:`MultiIndex.putmask` where the other value was also a :class:`MultiIndex` (:issue:`43212`)
- Bug in :meth:`MultiIndex.dtypes` duplicate level names returned only one dtype per name (:issue:`45174`)
-

I/O
^^^
Expand Down Expand Up @@ -882,7 +865,6 @@ I/O
- Bug in :func:`read_csv` when passing a ``tempfile.SpooledTemporaryFile`` opened in binary mode (:issue:`44748`)
- Bug in :func:`read_json` raising ``ValueError`` when attempting to parse json strings containing "://" (:issue:`36271`)
- Bug in :func:`read_csv` when ``engine="c"`` and ``encoding_errors=None`` which caused a segfault (:issue:`45180`)
-

Period
^^^^^^
Expand All @@ -892,12 +874,9 @@ Period
- Bug in :meth:`PeriodIndex.to_timestamp` giving incorrect values for indexes with non-contiguous data (:issue:`44100`)
- Bug in :meth:`Series.where` with ``PeriodDtype`` incorrectly raising when the ``where`` call should not replace anything (:issue:`45135`)

-

Plotting
^^^^^^^^
- When given non-numeric data, :meth:`DataFrame.boxplot` now raises a ``ValueError`` rather than a cryptic ``KeyError`` or ``ZeroDivisionError``, in line with other plotting functions like :meth:`DataFrame.hist`. (:issue:`43480`)
-

Groupby/resample/rolling
^^^^^^^^^^^^^^^^^^^^^^^^
Expand Down Expand Up @@ -957,7 +936,6 @@ Sparse
- Bug in :class:`SparseArray` comparison methods with an array-like operand of mismatched length raising ``AssertionError`` or unclear ``ValueError`` depending on the input (:issue:`43863`)
- Bug in :class:`SparseArray` arithmetic methods ``floordiv`` and ``mod`` behaviors when dividing by zero not matching the non-sparse :class:`Series` behavior (:issue:`38172`)
- Bug in :class:`SparseArray` unary methods as well as :meth:`SparseArray.isna` doesn't recalculate indexes (:issue:`44955`)
-

ExtensionArray
^^^^^^^^^^^^^^
Expand All @@ -974,7 +952,6 @@ ExtensionArray
- Fixed bug in :meth:`Series.replace` where explicitly passing ``value=None`` is treated as if no ``value`` was passed, and ``None`` not being in the result (:issue:`36984`, :issue:`19998`)
- Fixed bug in :meth:`Series.replace` with unwanted downcasting being done in no-op replacements (:issue:`44498`)
- Fixed bug in :meth:`Series.replace` with ``FloatDtype``, ``string[python]``, or ``string[pyarrow]`` dtype not being preserved when possible (:issue:`33484`, :issue:`40732`, :issue:`31644`, :issue:`41215`, :issue:`25438`)
-

Styler
^^^^^^
Expand Down Expand Up @@ -1004,14 +981,11 @@ Other
- Bug in :meth:`DataFrame.to_records` where an incorrect ``n`` was used when missing names were replaced by ``level_n`` (:issue:`44818`)
- Bug in :meth:`DataFrame.eval` where ``resolvers`` argument was overriding the default resolvers (:issue:`34966`)

.. ***DO NOT USE THIS SECTION***

-
-

.. ---------------------------------------------------------------------------

.. _whatsnew_140.contributors:

Contributors
~~~~~~~~~~~~

.. contributors:: v1.3.5..v1.4.0|HEAD