Backport PR #47476 on branch 1.4.x (DOC: v1.4.3 release date) (#47478)

Backport PR #47476: DOC: v1.4.3 release date

Co-authored-by: Simon Hawkins <[email protected]>

doc/source/whatsnew/v1.4.3.rst

@@ -1,7 +1,7 @@
 .. _whatsnew_143:
 
-What's new in 1.4.3 (April ??, 2022)
-------------------------------------
+What's new in 1.4.3 (June 23, 2022)
+-----------------------------------
 
 These are the changes in pandas 1.4.3. See :ref:`release` for a full changelog
 including other versions of pandas.
@@ -12,10 +12,10 @@ including other versions of pandas.
 
 .. _whatsnew_143.concat:
 
-Behaviour of ``concat`` with empty or all-NA DataFrame columns
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Behavior of ``concat`` with empty or all-NA DataFrame columns
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-The behaviour change in version 1.4.0 to stop ignoring the data type
+The behavior change in version 1.4.0 to stop ignoring the data type
 of empty or all-NA columns with float or object dtype in :func:`concat`
 (:ref:`whatsnew_140.notable_bug_fixes.concat_with_empty_or_all_na`) has been
 reverted (:issue:`45637`).
@@ -30,7 +30,7 @@ Fixed regressions
 - Fixed regression in representation of ``dtypes`` attribute of :class:`MultiIndex` (:issue:`46900`)
 - Fixed regression when setting values with :meth:`DataFrame.loc` updating :class:`RangeIndex` when index was set as new column and column was updated afterwards (:issue:`47128`)
 - Fixed regression in :meth:`DataFrame.fillna` and :meth:`DataFrame.update` creating a copy when updating inplace (:issue:`47188`)
-- Fixed regression in :meth:`DataFrame.nsmallest` led to wrong results when ``np.nan`` in the sorting column (:issue:`46589`)
+- Fixed regression in :meth:`DataFrame.nsmallest` led to wrong results when the sorting column has ``np.nan`` values (:issue:`46589`)
 - Fixed regression in :func:`read_fwf` raising ``ValueError`` when ``widths`` was specified with ``usecols`` (:issue:`46580`)
 - Fixed regression in :func:`concat` not sorting columns for mixed column names (:issue:`47127`)
 - Fixed regression in :meth:`.Groupby.transform` and :meth:`.Groupby.agg` failing with ``engine="numba"`` when the index was a :class:`MultiIndex` (:issue:`46867`)
@@ -39,7 +39,7 @@ Fixed regressions
 - Fixed regression in :func:`read_csv` with ``index_col=False`` identifying first row as index names when ``header=None`` (:issue:`46955`)
 - Fixed regression in :meth:`.DataFrameGroupBy.agg` when used with list-likes or dict-likes and ``axis=1`` that would give incorrect results; now raises ``NotImplementedError`` (:issue:`46995`)
 - Fixed regression in :meth:`DataFrame.resample` and :meth:`DataFrame.rolling` when used with list-likes or dict-likes and ``axis=1`` that would raise an unintuitive error message; now raises ``NotImplementedError`` (:issue:`46904`)
-- Fixed regression in :func:`assert_index_equal` when ``check_order=False`` and :class:`Index` has extension or object dtype (:issue:`47207`)
+- Fixed regression in :func:`testing.assert_index_equal` when ``check_order=False`` and :class:`Index` has extension or object dtype (:issue:`47207`)
 - Fixed regression in :func:`read_excel` returning ints as floats on certain input sheets (:issue:`46988`)
 - Fixed regression in :meth:`DataFrame.shift` when ``axis`` is ``columns`` and ``fill_value`` is absent, ``freq`` is ignored (:issue:`47039`)
 - Fixed regression in :meth:`DataFrame.to_json` causing a segmentation violation when :class:`DataFrame` is created with an ``index`` parameter of the type :class:`PeriodIndex` (:issue:`46683`)
@@ -50,9 +50,8 @@ Fixed regressions
 
 Bug fixes
 ~~~~~~~~~
-- Bug in :meth:`pd.eval`, :meth:`DataFrame.eval` and :meth:`DataFrame.query` where passing empty ``local_dict`` or ``global_dict`` was treated as passing ``None`` (:issue:`47084`)
-- Most I/O methods do no longer suppress ``OSError`` and ``ValueError`` when closing file handles (:issue:`47136`)
--
+- Bug in :func:`pandas.eval`, :meth:`DataFrame.eval` and :meth:`DataFrame.query` where passing empty ``local_dict`` or ``global_dict`` was treated as passing ``None`` (:issue:`47084`)
+- Most I/O methods no longer suppress ``OSError`` and ``ValueError`` when closing file handles (:issue:`47136`)
 
 .. ---------------------------------------------------------------------------
 
@@ -61,7 +60,6 @@ Bug fixes
 Other
 ~~~~~
 - The minimum version of Cython needed to compile pandas is now ``0.29.30`` (:issue:`41935`)
--
 
 .. ---------------------------------------------------------------------------