wp_die( __( 'You do not have permission to access this page.' ), 403 );
echo '<div class="wrap">';
-echo '<h2>' . __( 'Upgrade Network' ) . '</h2>';
+echo '<h1>' . __( 'Upgrade Network' ) . '</h1>';
$action = isset($_GET['action']) ? $_GET['action'] : 'show';
$n = ( isset($_GET['n']) ) ? intval($_GET['n']) : 0;
if ( $n < 5 ) {
+ /**
+ * @global string $wp_db_version
+ */
global $wp_db_version;
update_site_option( 'wpmu_upgrade_site', $wp_db_version );
}