diff --git a/wp-includes/blocks.php b/wp-includes/blocks.php
index cda01dac4e..e33912b617 100644
--- a/wp-includes/blocks.php
+++ b/wp-includes/blocks.php
@@ -1902,16 +1902,16 @@ function block_version( $content ) {
  * Registers a new block style.
  *
  * @since 5.3.0
- * @since 6.6.0 Updated types as registry now allows registering styles for multiple block types at once.
+ * @since 6.6.0 Added support for registering styles for multiple block types.
  *
  * @link https://developer.wordpress.org/block-editor/reference-guides/block-api/block-styles/
  *
- * @param string|array $block_name       Block type name including namespace or array of namespaced block type names.
- * @param array        $style_properties Array containing the properties of the style name, label,
- *                                       style_handle (name of the stylesheet to be enqueued),
- *                                       inline_style (string containing the CSS to be added),
- *                                       style_data (theme.json-like array to generate CSS from).
- *                                       See WP_Block_Styles_Registry::register().
+ * @param string|string[] $block_name       Block type name including namespace or array of namespaced block type names.
+ * @param array           $style_properties Array containing the properties of the style name, label,
+ *                                          style_handle (name of the stylesheet to be enqueued),
+ *                                          inline_style (string containing the CSS to be added),
+ *                                          style_data (theme.json-like array to generate CSS from).
+ *                                          See WP_Block_Styles_Registry::register().
  * @return bool True if the block style was registered with success and false otherwise.
  */
 function register_block_style( $block_name, $style_properties ) {
diff --git a/wp-includes/class-wp-block-styles-registry.php b/wp-includes/class-wp-block-styles-registry.php
index c0ed2a3545..2d16e0e034 100644
--- a/wp-includes/class-wp-block-styles-registry.php
+++ b/wp-includes/class-wp-block-styles-registry.php
@@ -46,8 +46,8 @@ final class WP_Block_Styles_Registry {
 	 *
 	 * @link https://developer.wordpress.org/block-editor/reference-guides/block-api/block-styles/
 	 *
-	 * @param string|array $block_name       Block type name including namespace or array of namespaced block type names.
-	 * @param array        $style_properties {
+	 * @param string|string[] $block_name       Block type name including namespace or array of namespaced block type names.
+	 * @param array           $style_properties {
 	 *     Array containing the properties of the style.
 	 *
 	 *     @type string $name         The identifier of the style used to compute a CSS class.
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 1c2d39ea76..44e2622217 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-alpha-58246';
+$wp_version = '6.6-alpha-58247';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.