diff --git a/CHANGES b/CHANGES
index badc13572..028865694 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,26 +1,11 @@
-Release 2.3.1 (in development)
-==============================
-
-Dependencies
-------------
-
-Incompatible changes
---------------------
-
-Deprecated
-----------
-
-Features added
---------------
+Release 2.3.1 (released Dec 22, 2019)
+=====================================
 
 Bugs fixed
 ----------
 
 * #6936: sphinx-autogen: raises AttributeError
 
-Testing
---------
-
 Release 2.3.0 (released Dec 15, 2019)
 =====================================
 
diff --git a/sphinx/__init__.py b/sphinx/__init__.py
index 85b31aa15..349fad85e 100644
--- a/sphinx/__init__.py
+++ b/sphinx/__init__.py
@@ -32,7 +32,7 @@ if 'PYTHONWARNINGS' not in os.environ:
 warnings.filterwarnings('ignore', "'U' mode is deprecated",
                         DeprecationWarning, module='docutils.io')
 
-__version__ = '2.3.1+'
+__version__ = '2.3.1'
 __released__ = '2.3.1'  # used when Sphinx builds its own docs
 
 #: Version info for better programmatic use.
@@ -43,7 +43,7 @@ __released__ = '2.3.1'  # used when Sphinx builds its own docs
 #:
 #: .. versionadded:: 1.2
 #:    Before version 1.2, check the string ``sphinx.__version__``.
-version_info = (2, 3, 1, 'beta', 0)
+version_info = (2, 3, 1, 'final', 0)
 
 package_dir = path.abspath(path.dirname(__file__))