add notes

Author: zyc09

doc/source/whatsnew/v1.4.0.rst

@@ -298,6 +298,7 @@ Other Deprecations
 - Deprecated the 'include_start' and 'include_end' arguments in :meth:`DataFrame.between_time`; in a future version passing 'include_start' or 'include_end' will raise (:issue:`40245`)
 - Deprecated the ``squeeze`` argument to :meth:`read_csv`, :meth:`read_table`, and :meth:`read_excel`. Users should squeeze the DataFrame afterwards with ``.squeeze("columns")`` instead. (:issue:`43242`)
 - Deprecated the ``index`` argument to :class:`SparseArray` construction (:issue:`23089`)
+- Deprecated the `closed` argument in :meth:`date_range` and :meth:`bdate_range` in favor of `inclusive` argument; In a future version passing `closed` wil raise (:issue:`40245`)
 -
 
 .. ---------------------------------------------------------------------------
@@ -340,6 +341,7 @@ Datetimelike
 ^^^^^^^^^^^^
 - Bug in :class:`DataFrame` constructor unnecessarily copying non-datetimelike 2D object arrays (:issue:`39272`)
 - :func:`to_datetime` would silently swap ``MM/DD/YYYY`` and ``DD/MM/YYYY`` formats if the given ``dayfirst`` option could not be respected - now, a warning is raised in the case of delimited date strings (e.g. ``31-12-2012``) (:issue:`12585`)
+- Bug in :meth:`date_range` and `bdate_range` do not return right bound when `start`=`end` and set is closed on one side (:issue:`43394`)
 -
 
 Timedelta