Move to 1.0 + add issue number

Author: topper-123

doc/source/whatsnew/v0.25.0.rst

@@ -272,18 +272,6 @@ is respected in indexing. (:issue:`24076`, :issue:`16785`)
     df['2019-01-01 12:00:00+04:00':'2019-01-01 13:00:00+04:00']
 
 
-.. _whatsnew_0250.api_breaking.MultiIndex._names:
-
-
-``MultiIndex.levels`` do not hold level names any longer
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-A :class:`MultiIndex` previously stored the level names as attributes of each of its
-:attr:`MultiIndex.levels`. From Pandas 0.25, the names are only accessed through
-:attr:`MultiIndex.names` (which was also possible previously). This is done in order to
-make :attr:`MultiIndex.levels` more similar to :attr:`CategoricalIndex.categories`.
-
-
 .. _whatsnew_0250.api_breaking.multi_indexing:
 
 

doc/source/whatsnew/v1.0.0.rst

@@ -31,12 +31,20 @@ Other enhancements
 
 .. _whatsnew_1000.api_breaking:
 
--
--
 
 Backwards incompatible API changes
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+.. _whatsnew_1000.api_breaking.MultiIndex._names:
+
+``MultiIndex.levels`` do not hold level names any longer
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+- A :class:`MultiIndex` previously stored the level names as attributes of each of its
+  :attr:`MultiIndex.levels`. From Pandas 1.0, the names are only accessed through
+  :attr:`MultiIndex.names` (which was also possible previously). This is done in order to
+  make :attr:`MultiIndex.levels` more similar to :attr:`CategoricalIndex.categories` (:issue`27242`:).
+
 .. _whatsnew_1000.api.other:
 
 - :class:`pandas.core.groupby.GroupBy.transform` now raises on invalid operation names (:issue:`27489`).