diff --git a/wp-includes/rest-api/class-wp-rest-server.php b/wp-includes/rest-api/class-wp-rest-server.php
index 490b057c24..55f0ce6fc8 100644
--- a/wp-includes/rest-api/class-wp-rest-server.php
+++ b/wp-includes/rest-api/class-wp-rest-server.php
@@ -1077,8 +1077,8 @@ class WP_REST_Server {
 	 * @since 5.6.0
 	 *
 	 * @param WP_REST_Request $request  The request object.
-	 * @param array           $handler  The matched route handler.
 	 * @param string          $route    The matched route regex.
+	 * @param array           $handler  The matched route handler.
 	 * @param WP_Error|null   $response The current error object if any.
 	 * @return WP_REST_Response
 	 */
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e914caa0dd..a7b986719d 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-51914';
+$wp_version = '5.9-alpha-51915';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.