diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index f205062..e21191a 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -26,16 +26,21 @@ Release history
     ..  This extra heading level keeps the ToC from becoming unmanageably long
 
 
-vNext (12.0)
-------------
+v12.0
+-----
 
-*unreleased changes*
+*2024-09-09*
 
 Breaking changes
 ~~~~~~~~~~~~~~~~
 
 * Require **Django 4.0 or later** and Python 3.8 or later.
 
+Features
+~~~~~~~~
+
+* **Resend:** Add support for ``send_at``.
+
 Fixes
 ~~~~~
 
@@ -47,12 +52,6 @@ Fixes
   ``event.description``. Treat soft bounces as "deferred" rather than "bounced".
   (Thanks to `@MikeVL`_ for fixing the signature validation problem.)
 
-
-Features
-~~~~~~~~
-
-* **Resend:** Add support for ``send_at``.
-
 Other
 ~~~~~
 
diff --git a/anymail/_version.py b/anymail/_version.py
index 2d5c170..062e583 100644
--- a/anymail/_version.py
+++ b/anymail/_version.py
@@ -2,6 +2,6 @@
 # Instead, load version info from the package root.
 
 #: major.minor or major.minor.patch (optionally with .devN suffix)
-__version__ = "12.0.dev0"
+__version__ = "12.0"
 
 VERSION = __version__.split(",")