DOC: Add whatsnew for 2.3.0 (pandas-dev#59625)

* DOC: Add whatsnew for 2.3.0

* fix duplicate label

doc/source/whatsnew/index.rst

@@ -18,6 +18,13 @@ Version 3.0
 
    v3.0.0
 
+Version 2.3
+-----------
+
+.. toctree::
+   :maxdepth: 2
+
+   v2.3.0
 
 Version 2.2
 -----------

doc/source/whatsnew/v2.3.0.rst

@@ -0,0 +1,177 @@
+.. _whatsnew_230:
+
+What's new in 2.3.0 (Month XX, 2024)
+------------------------------------
+
+These are the changes in pandas 2.3.0. See :ref:`release` for a full changelog
+including other versions of pandas.
+
+{{ header }}
+
+.. ---------------------------------------------------------------------------
+
+.. _whatsnew_230.upcoming_changes:
+
+Upcoming changes in pandas 3.0
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+
+.. _whatsnew_230.enhancements:
+
+Enhancements
+~~~~~~~~~~~~
+
+.. _whatsnew_230.enhancements.enhancement1:
+
+enhancement1
+^^^^^^^^^^^^
+
+
+.. _whatsnew_230.enhancements.other:
+
+Other enhancements
+^^^^^^^^^^^^^^^^^^
+
+-
+-
+
+.. ---------------------------------------------------------------------------
+.. _whatsnew_230.notable_bug_fixes:
+
+Notable bug fixes
+~~~~~~~~~~~~~~~~~
+
+These are bug fixes that might have notable behavior changes.
+
+.. _whatsnew_230.notable_bug_fixes.notable_bug_fix1:
+
+notable_bug_fix1
+^^^^^^^^^^^^^^^^
+
+.. ---------------------------------------------------------------------------
+.. _whatsnew_230.deprecations:
+
+Deprecations
+~~~~~~~~~~~~
+-
+-
+
+.. ---------------------------------------------------------------------------
+.. _whatsnew_230.performance:
+
+Performance improvements
+~~~~~~~~~~~~~~~~~~~~~~~~
+-
+-
+
+.. ---------------------------------------------------------------------------
+.. _whatsnew_230.bug_fixes:
+
+Bug fixes
+~~~~~~~~~
+
+Categorical
+^^^^^^^^^^^
+-
+-
+
+Datetimelike
+^^^^^^^^^^^^
+-
+-
+
+Timedelta
+^^^^^^^^^
+-
+-
+
+Timezones
+^^^^^^^^^
+-
+-
+
+Numeric
+^^^^^^^
+-
+-
+
+Conversion
+^^^^^^^^^^
+-
+-
+
+Strings
+^^^^^^^
+-
+-
+
+Interval
+^^^^^^^^
+-
+-
+
+Indexing
+^^^^^^^^
+-
+-
+
+Missing
+^^^^^^^
+-
+-
+
+MultiIndex
+^^^^^^^^^^
+-
+-
+
+I/O
+^^^
+-
+-
+
+Period
+^^^^^^
+-
+-
+
+Plotting
+^^^^^^^^
+-
+-
+
+Groupby/resample/rolling
+^^^^^^^^^^^^^^^^^^^^^^^^
+-
+-
+
+Reshaping
+^^^^^^^^^
+-
+-
+
+Sparse
+^^^^^^
+-
+-
+
+ExtensionArray
+^^^^^^^^^^^^^^
+-
+-
+
+Styler
+^^^^^^
+-
+-
+
+Other
+^^^^^
+-
+-
+
+.. ---------------------------------------------------------------------------
+.. _whatsnew_230.contributors:
+
+Contributors
+~~~~~~~~~~~~

doc/source/whatsnew/v3.0.0.rst

@@ -1,4 +1,4 @@
-.. _whatsnew_230:
+.. _whatsnew_300:
 
 What's new in 3.0.0 (Month XX, 2024)
 ------------------------------------