diff --git a/package.json b/package.json
index 622d9d1f02..a4d50b0afe 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "WordPress",
-  "version": "4.3.11",
+  "version": "4.3.12",
   "description": "WordPress is web software you can use to create a beautiful website or blog.",
   "repository": {
     "type": "svn",
diff --git a/src/readme.html b/src/readme.html
index b0ba87b00a..3f0cf95019 100644
--- a/src/readme.html
+++ b/src/readme.html
@@ -9,7 +9,7 @@
 <body>
 <h1 id="logo">
 	<a href="https://wordpress.org/"><img alt="WordPress" src="wp-admin/images/wordpress-logo.png" /></a>
-	<br /> Version 4.3.11
+	<br /> Version 4.3.12
 </h1>
 <p style="text-align: center">Semantic Personal Publishing Platform</p>
 
diff --git a/src/wp-admin/about.php b/src/wp-admin/about.php
index 0adbf96fd3..11ae16ef6a 100644
--- a/src/wp-admin/about.php
+++ b/src/wp-admin/about.php
@@ -108,7 +108,11 @@ $tech_features = array(
 		</h2>
 
 		<div class="changelog point-releases">
-			<h3><?php echo _n( 'Maintenance and Security Release', 'Maintenance and Security Releases', 11 ); ?></h3>
+			<h3><?php echo _n( 'Maintenance and Security Release', 'Maintenance and Security Releases', 12 ); ?></h3>
+			<p><?php printf( _n( '<strong>Version %1$s</strong> addressed a security issue.',
+					'<strong>Version %1$s</strong> addressed some security issues.', 8 ), '4.3.12' ); ?>
+				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.3.12' ); ?>
+			</p>
 			<p><?php printf( _n( '<strong>Version %1$s</strong> addressed a security issue.',
 					'<strong>Version %1$s</strong> addressed some security issues.', 5 ), '4.3.11' ); ?>
 				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.3.11' ); ?>
diff --git a/src/wp-includes/version.php b/src/wp-includes/version.php
index 300d61343a..cde2fc613d 100644
--- a/src/wp-includes/version.php
+++ b/src/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.3.11-src';
+$wp_version = '4.3.12-src';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
