Move API changes to correct file.

doc/api/api_changes.rst

@@ -35,4 +35,5 @@ added to Matplotlib, see :ref:`whats-new`
 
       api_changes_3.4/*
 
+.. include:: prev_api_changes/api_changes_3.3.1.rst
 .. include:: prev_api_changes/api_changes_3.3.0.rst

doc/api/api_changes_3.4/deprecations.rst

@@ -1,19 +1,2 @@
 Deprecations
 ------------
-
-Reverted deprecation of ``num2epoch`` and ``epoch2num``
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-These two functions were deprecated in 3.3.0, and did not return
-an accurate Matplotlib datenum relative to the new Matplotlib epoch
-handling (`~.dates.get_epoch` and :rc:`date.epoch`).  This version
-reverts the deprecation.
-
-Functions ``epoch2num`` and ``dates.julian2num`` use ``date.epoch`` rcParam
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-Now `~.dates.epoch2num` and (undocumented) ``julian2num`` return floating point
-days since `~.dates.get_epoch` as set by :rc:`date.epoch`, instead of
-floating point days since the old epoch of "0000-12-31T00:00:00".  If
-needed, you can translate from the new to old values as
-``old = new + mdates.date2num(np.datetime64('0000-12-31'))``

doc/api/prev_api_changes/api_changes_3.3.1.rst

@@ -0,0 +1,22 @@
+API Changes for 3.3.1
+=====================
+
+Deprecations
+------------
+
+Reverted deprecation of ``num2epoch`` and ``epoch2num``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+These two functions were deprecated in 3.3.0, and did not return
+an accurate Matplotlib datenum relative to the new Matplotlib epoch
+handling (`~.dates.get_epoch` and :rc:`date.epoch`).  This version
+reverts the deprecation.
+
+Functions ``epoch2num`` and ``dates.julian2num`` use ``date.epoch`` rcParam
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Now `~.dates.epoch2num` and (undocumented) ``julian2num`` return floating point
+days since `~.dates.get_epoch` as set by :rc:`date.epoch`, instead of
+floating point days since the old epoch of "0000-12-31T00:00:00".  If
+needed, you can translate from the new to old values as
+``old = new + mdates.date2num(np.datetime64('0000-12-31'))``

doc/conf.py

@@ -62,6 +62,7 @@
     'api/prev_api_changes/api_changes_*/*',
     # Be sure to update users/whats_new.rst:
     'users/prev_whats_new/whats_new_3.3.0.rst',
+    'users/prev_whats_new/whats_new_3.3.1.rst',
 ]