diff --git a/wp-includes/kses.php b/wp-includes/kses.php
index a707c62de2..ce21bf5bd7 100644
--- a/wp-includes/kses.php
+++ b/wp-includes/kses.php
@@ -2631,6 +2631,7 @@ function safecss_filter_attr( $css, $deprecated = '' ) {
  * @since 5.0.0 Added support for `data-*` wildcard attributes.
  * @since 6.0.0 Added `dir`, `lang`, and `xml:lang` to global attributes.
  * @since 6.3.0 Added `aria-controls`, `aria-current`, and `aria-expanded` attributes.
+ * @since 6.4.0 Added `aria-live` and `hidden` attributes.
  *
  * @access private
  * @ignore
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 960fada777..04edf6ca7b 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.4-alpha-56607';
+$wp_version = '6.4-alpha-56608';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.