DOCS: add whatsnew entry

Author: AlexKirko

doc/source/whatsnew/v1.0.0.rst

@@ -968,6 +968,7 @@ Datetimelike
 - Bug in :func:`date_range` with custom business hours as ``freq`` and given number of ``periods`` (:issue:`30593`)
 - Bug in :class:`PeriodIndex` comparisons with incorrectly casting integers to :class:`Period` objects, inconsistent with the :class:`Period` comparison behavior (:issue:`30722`)
 - Bug in :meth:`DatetimeIndex.insert` raising a ``ValueError`` instead of a ``TypeError`` when trying to insert a timezone-aware :class:`Timestamp` into a timezone-naive :class:`DatetimeIndex`, or vice-versa (:issue:`30806`)
+- Bug in :class:`Timestamp` where constructing :class:`Timestamp` from ambiguous epoch time and calling constructor again changed :meth:`Timestamp.value` property (:issue:`24329`)
 
 Timedelta
 ^^^^^^^^^