Help/About: Update the About page for WordPress 5.8.1.

Props audrasjb, circlecube, mukesh27.
Fixes #54083.
Built from https://develop.svn.wordpress.org/branches/5.8@51767


git-svn-id: http://core.svn.wordpress.org/branches/5.8@51374 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/about.php

@@ -40,6 +40,39 @@ require_once ABSPATH . 'wp-admin/admin-header.php';
 
 		<hr />
 
+		<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. */
+						_n(
+							'<strong>Version %1$s</strong> addressed a security issue and fixed %2$s bug.',
+							'<strong>Version %1$s</strong> addressed a security issue and fixed %2$s bugs.',
+							60
+						),
+						'5.8.1',
+						number_format_i18n( 60 )
+					);
+					?>
+					<?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( '5.8.1' )
+						)
+					);
+					?>
+				</p>
+			</div>
+		</div>
+
+		<hr class="is-large" />
+
 		<div class="about__section">
 			<h2 class="aligncenter">
 				<?php _e( 'Three Essential Powerhouses' ); ?>

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.8.1-RC1-51749';
+$wp_version = '5.8.1-RC1-51767';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.