GH refs

Author: jbrockmendel

doc/source/whatsnew/v2.0.0.rst

@@ -127,7 +127,7 @@ Other API changes
 - Passing ``dtype`` of "timedelta64[s]", "timedelta64[ms]", or "timedelta64[us]" to :class:`TimedeltaIndex`, :class:`Series`, or :class:`DataFrame` constructors will now retain that dtype instead of casting to "timedelta64[ns]"; passing a dtype with lower resolution for :class:`Series` or :class:`DataFrame` will be cast to the lowest supported resolution "timedelta64[s]" (:issue:`49014`)
 - Passing a ``np.datetime64`` object with non-nanosecond resolution to :class:`Timestamp` will retain the input resolution if it is "s", "ms", or "ns"; otherwise it will be cast to the closest supported resolution (:issue:`49008`)
 - The ``other`` argument in :meth:`DataFrame.mask` and :meth:`Series.mask` now defaults to ``no_default`` instead of ``np.nan`` consistent with :meth:`DataFrame.where` and :meth:`Series.where`. Entries will be filled with the corresponding NULL value (``np.nan`` for numpy dtypes, ``pd.NA`` for extension dtypes). (:issue:`49111`)
-- When creating a :class:`Series` with a object-dtype :class:`Index` of datetime objects, pandas no longer silently converts the index to a :class:`DatetimeIndex` (:issue:`?`)
+- When creating a :class:`Series` with a object-dtype :class:`Index` of datetime objects, pandas no longer silently converts the index to a :class:`DatetimeIndex` (:issue:`39307`, :issue:`23598`)
 -
 
 .. ---------------------------------------------------------------------------

pandas/tests/series/test_constructors.py

@@ -1985,7 +1985,7 @@ def test_series_constructor_datetimelike_index_coercion(self):
         with tm.assert_produces_warning(FutureWarning):
             assert ser.index.is_all_dates
         # as of 2.0, we no longer silently cast the object-dtype index
-        #  to DatetimeIndex
+        #  to DatetimeIndex GH#39307, GH#23598
         assert not isinstance(ser.index, DatetimeIndex)
 
     def test_series_constructor_infer_multiindex(self):