diff --git a/CHANGES.rst b/CHANGES.rst
index 9cc99961..0ff8ca0c 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -10,7 +10,7 @@ wxPython Changelog
 
 4.2.1
 -------------------
-* unreleased
+* 1-June-2023
 
 PyPI:   https://pypi.python.org/pypi/wxPython/4.2.1
 Extras: https://extras.wxPython.org/wxPython4/extras/
@@ -24,6 +24,8 @@ New and improved in this release:
 
 * Added Python 3.11 to the build system.
 
+* Added Python 3.12 (beta) to the build system.
+
 
 
 4.2.0 "Rumors of my death are only slightly exaggerated"
diff --git a/buildbot/master.cfg b/buildbot/master.cfg
index e3bfb6fd..fd417ac6 100644
--- a/buildbot/master.cfg
+++ b/buildbot/master.cfg
@@ -217,12 +217,14 @@ regularBuilders = [ #'build-osx-py36',
                     'build-win32-py39',
                     'build-win32-py310',
                     'build-win32-py311',
+                    'build-win32-py312',
                     #'build-win64-py36',
                     #'build-win64-py37',
                     'build-win64-py38',
                     'build-win64-py39',
                     'build-win64-py310',
                     'build-win64-py311',
+                    'build-win64-py312',
                     ]
 distBuilders = [    #'dist-osx-py36',
                     #'dist-osx-py37',
@@ -236,12 +238,14 @@ distBuilders = [    #'dist-osx-py36',
                     'dist-win32-py39',
                     'dist-win32-py310',
                     'dist-win32-py311',
+                    'dist-win32-py312',
                     #'dist-win64-py36',
                     'dist-win64-py37',
                     'dist-win64-py38',
                     'dist-win64-py39',
                     'dist-win64-py310',
                     'dist-win64-py311',
+                    'dist-win64-py312',
                     ]
 otherBuilders = [   'dist-docs-py37',
                     'dist-src-py37',