diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
index a3b53ba48e9b7c..0296c8ad60b0d3 100644
--- a/Doc/whatsnew/3.10.rst
+++ b/Doc/whatsnew/3.10.rst
@@ -134,6 +134,12 @@ Deprecated
 Removed
 =======
 
+* The ``ParserBase.error()`` method from the private and undocumented ``_markupbase``
+  module has been removed.  :class:`html.parser.HTMLParser` is the only subclass of
+  ``ParserBase`` and its ``error()`` implementation has already been removed in
+  Python 3.5.
+  (Contributed by Berker Peksag in :issue:`31844`.)
+
 
 Porting to Python 3.10
 ======================
diff --git a/Doc/whatsnew/3.9.rst b/Doc/whatsnew/3.9.rst
index 18cc5588bf2372..db380bc1cdfa4e 100644
--- a/Doc/whatsnew/3.9.rst
+++ b/Doc/whatsnew/3.9.rst
@@ -887,12 +887,6 @@ Removed
   :func:`asyncio.current_task` and :func:`asyncio.all_tasks` instead.
   (Contributed by Rémi Lapeyre in :issue:`40967`)
 
-* The ``ParserBase.error()`` method from the private and undocumented ``_markupbase``
-  module has been removed.  :class:`html.parser.HTMLParser` is the only subclass of
-  ``ParserBase`` and its ``error()`` implementation has already been removed in
-  Python 3.5.
-  (Contributed by Berker Peksag in :issue:`31844`.)
-
 Porting to Python 3.9
 =====================