diff --git a/wp-admin/includes/upgrade.php b/wp-admin/includes/upgrade.php
index 86d7dedc78..9bdc2e77ed 100644
--- a/wp-admin/includes/upgrade.php
+++ b/wp-admin/includes/upgrade.php
@@ -1962,11 +1962,10 @@ function upgrade_430() {
  * @ignore
  * @since 4.3.0
  *
- * @global int  $wp_current_db_version The old (current) database version.
- * @global wpdb $wpdb                  WordPress database abstraction object.
+ * @global wpdb $wpdb WordPress database abstraction object.
  */
 function upgrade_430_fix_comments() {
-	global $wp_current_db_version, $wpdb;
+	global $wpdb;
 
 	$content_length = $wpdb->get_col_length( $wpdb->comments, 'comment_content' );
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index a14ba3c7ce..75b10d9dc9 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.4-alpha-46971';
+$wp_version = '5.4-alpha-46972';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.