diff --git a/wp-includes/shortcodes.php b/wp-includes/shortcodes.php
index 75e489f0c8..bddf63ada2 100644
--- a/wp-includes/shortcodes.php
+++ b/wp-includes/shortcodes.php
@@ -417,10 +417,11 @@ function do_shortcode_tag( $m ) {
 	 * shortcode generation process, returning that value instead.
 	 *
 	 * @since 4.7.0
+	 * @since 6.5.0 The `$attr` parameter is always an array.
 	 *
 	 * @param false|string $output Short-circuit return value. Either false or the value to replace the shortcode with.
 	 * @param string       $tag    Shortcode name.
-	 * @param array|string $attr   Shortcode attributes array or the original arguments string if it cannot be parsed.
+	 * @param array        $attr   Shortcode attributes array, can be empty if the original arguments string cannot be parsed.
 	 * @param array        $m      Regular expression match array.
 	 */
 	$return = apply_filters( 'pre_do_shortcode_tag', false, $tag, $attr, $m );
@@ -436,11 +437,12 @@ function do_shortcode_tag( $m ) {
 	 * Filters the output created by a shortcode callback.
 	 *
 	 * @since 4.7.0
+	 * @since 6.5.0 The `$attr` parameter is always an array.
 	 *
-	 * @param string       $output Shortcode output.
-	 * @param string       $tag    Shortcode name.
-	 * @param array|string $attr   Shortcode attributes array or the original arguments string if it cannot be parsed.
-	 * @param array        $m      Regular expression match array.
+	 * @param string $output Shortcode output.
+	 * @param string $tag    Shortcode name.
+	 * @param array  $attr   Shortcode attributes array, can be empty if the original arguments string cannot be parsed.
+	 * @param array  $m      Regular expression match array.
 	 */
 	return apply_filters( 'do_shortcode_tag', $output, $tag, $attr, $m );
 }
@@ -600,7 +602,7 @@ function get_shortcode_atts_regex() {
  * retrieval of the attributes, since all attributes have to be known.
  *
  * @since 2.5.0
- * @since 6.5.0 The function now always returns an empty array,
+ * @since 6.5.0 The function now always returns an array,
  *              even if the original arguments string cannot be parsed or is empty.
  *
  * @param string $text Shortcode arguments list.
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 8c43d65523..24623e78bf 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-alpha-58196';
+$wp_version = '6.6-alpha-58197';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.