--- a/wp/wp-admin/includes/class-automatic-upgrader-skin.php	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-admin/includes/class-automatic-upgrader-skin.php	Fri Sep 05 18:40:08 2025 +0200
@@ -84,7 +84,7 @@
 			$string = $this->upgrader->strings[ $string ];
 		}
 
-		if ( strpos( $string, '%' ) !== false ) {
+		if ( str_contains( $string, '%' ) ) {
 			if ( ! empty( $args ) ) {
 				$string = vsprintf( $string, $args );
 			}