diff --git a/wp-admin/about.php b/wp-admin/about.php
index ccf19eb1fd..984e4e1fa6 100644
--- a/wp-admin/about.php
+++ b/wp-admin/about.php
@@ -51,6 +51,31 @@ require_once ABSPATH . 'wp-admin/admin-header.php';
 		<div class="about__section changelog">
 			<div class="column">
 				<h2><?php _e( 'Maintenance and Security Releases' ); ?></h2>
+				<p>
+					<?php
+					printf(
+						/* translators: 1: WordPress version number, 2: plural number of bugs. More than one security issue. */
+						_n(
+							'<strong>Version %1$s</strong> addressed some security issues and fixed %2$s bug.',
+							'<strong>Version %1$s</strong> addressed some security issues and fixed %2$s bugs.',
+							23
+						),
+						'5.4.2',
+						number_format_i18n( 23 )
+					);
+					?>
+					<?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( '5.4.2' )
+						)
+					);
+					?>
+				</p>
 				<p>
 					<?php
 					printf(
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 54cd00fe73..d0da1922b3 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4.2-RC1';
+$wp_version = '5.4.2';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.