diff --git a/wp-admin/about.php b/wp-admin/about.php
index f27ef4be70..26faec2b0f 100644
--- a/wp-admin/about.php
+++ b/wp-admin/about.php
@@ -108,7 +108,10 @@ $tech_features = array(
 		</h2>
 
 		<div class="changelog point-releases">
-			<h3><?php echo _n( 'Maintenance and Security Release', 'Maintenance and Security Releases', 16 ); ?></h3>
+			<h3><?php echo _n( 'Maintenance and Security Release', 'Maintenance and Security Releases', 17 ); ?></h3>
+			<p><?php printf( __( '<strong>Version %s</strong> addressed one security issue.' ), '4.3.17' ); ?>
+				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.3.17' ); ?>
+			</p>
 			<p><?php printf( __( '<strong>Version %s</strong> addressed some security issues.' ), '4.3.16' ); ?>
 				<?php printf( __( 'For more information, see <a href="%s">the release notes</a>.' ), 'https://codex.wordpress.org/Version_4.3.16' ); ?>
 			</p>
diff --git a/wp-includes/version.php b/wp-includes/version.php
index baec0d7770..5551c44895 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.3.16';
+$wp_version = '4.3.17';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.