diff --git a/CHANGES.rst b/CHANGES.rst
index 33a5a5a8f..d5227d752 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -6,6 +6,23 @@
 
 .. towncrier release notes start
 
+23.9.1 (2023-09-12)
+===================
+
+
+Bugfixes
+--------
+
+- Require greenlet 3.0 on Python 3.11 and Python 3.12; greenlet 3.0 is
+  recommended for all platforms. This fixes a number of obscure crashes
+  on all versions of Python, as well as fixing a fairly common problem
+  on Python 3.11+ that could manifest as either a crash or as a
+  ``SystemError``.
+  See :issue:`1985`.
+
+
+----
+
 
 23.9.0.post1 (2023-09-02)
 =========================
diff --git a/docs/changes/1985.bugfix b/docs/changes/1985.bugfix
deleted file mode 100644
index 4a81f8125..000000000
--- a/docs/changes/1985.bugfix
+++ /dev/null
@@ -1,5 +0,0 @@
-Require greenlet 3.0 on Python 3.11 and Python 3.12; greenlet 3.0 is
-recommended for all platforms. This fixes a number of obscure crashes
-on all versions of Python, as well as fixing a fairly common problem
-on Python 3.11+ that could manifest as either a crash or as a
-``SystemError``.
diff --git a/src/gevent/__init__.py b/src/gevent/__init__.py
index 481215a26..2331cedc9 100644
--- a/src/gevent/__init__.py
+++ b/src/gevent/__init__.py
@@ -27,7 +27,7 @@
 #: Use ``pkg_resources.parse_version(__version__)`` or
 #: ``packaging.version.Version(__version__)`` to get a machine-usable
 #: value.
-__version__ = '23.9.0.post2.dev0'
+__version__ = '23.9.1'
 
 
 __all__ = [