diff --git a/package-lock.json b/package-lock.json
index f98bef5c1b..1ba9d9a8bc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
 	"name": "WordPress",
-	"version": "4.3.25",
+	"version": "4.3.26",
 	"lockfileVersion": 1,
 	"requires": true,
 	"dependencies": {
diff --git a/package.json b/package.json
index ab30729ebe..6d2bf596f7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "WordPress",
-	"version": "4.3.25",
+	"version": "4.3.26",
 	"description": "WordPress is web software you can use to create a beautiful website or blog.",
 	"repository": {
 		"type": "svn",
diff --git a/src/wp-admin/about.php b/src/wp-admin/about.php
index edcd42eae5..d7ef666232 100644
--- a/src/wp-admin/about.php
+++ b/src/wp-admin/about.php
@@ -108,7 +108,27 @@ $tech_features = array(
 		</h2>
 
 		<div class="changelog point-releases">
-			<h3><?php echo _n( 'Maintenance and Security Release', 'Maintenance and Security Releases', 25 ); ?></h3>
+			<h3><?php echo _n( 'Maintenance and Security Release', 'Maintenance and Security Releases', 26 ); ?></h3>
+			<p>
+				<?php
+				printf(
+					/* translators: %s: WordPress version number */
+					__( '<strong>Version %1$s</strong> addressed a security issue.' ),
+					'4.3.26'
+				);
+				?>
+				<?php
+				printf(
+					/* translators: %s: HelpHub URL */
+					__( 'For more information, see <a href="%s">the release notes</a>.' ),
+					sprintf(
+						/* translators: %s: WordPress version */
+						esc_url( __( 'https://wordpress.org/support/wordpress-version/version-%s/' ) ),
+						sanitize_title( '4.3.26' )
+					)
+				);
+				?>
+			</p>
 			<p>
 				<?php
 				printf(
diff --git a/src/wp-includes/version.php b/src/wp-includes/version.php
index 9fc96ce18e..05a7c479fb 100644
--- a/src/wp-includes/version.php
+++ b/src/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.3.25-src';
+$wp_version = '4.3.26-src';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.