diff --git a/wp-admin/includes/class-wp-debug-data.php b/wp-admin/includes/class-wp-debug-data.php
index a044414789..2b07093365 100644
--- a/wp-admin/includes/class-wp-debug-data.php
+++ b/wp-admin/includes/class-wp-debug-data.php
@@ -1464,6 +1464,8 @@ class WP_Debug_Data {
 	 *
 	 * @since 5.9.0
 	 *
+	 * @global wpdb $wpdb WordPress database abstraction object.
+	 *
 	 * @param string $var Name of the MySQL variable.
 	 * @return string|null The variable value on success. Null if the variable does not exist.
 	 */
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 24eccc05eb..f456c53adc 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-51522';
+$wp_version = '5.9-alpha-51523';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.