diff --git a/src/wp-includes/script-loader.php b/src/wp-includes/script-loader.php
index eceeeb88a3b44..587cf8019dab6 100644
--- a/src/wp-includes/script-loader.php
+++ b/src/wp-includes/script-loader.php
@@ -2989,6 +2989,7 @@ function wp_enqueue_global_styles_css_custom_properties() {
  *
  * @since 5.9.1
  * @since 6.1.0 Added the `$priority` parameter.
+ * @deprecated 6.2.0 Use wp_style_engine_get_stylesheet_from_css_rules() instead.
  *
  * For block themes, styles are loaded in the head.
  * For classic ones, styles are loaded in the body because the wp_head action happens before render_block.
@@ -2999,6 +3000,7 @@ function wp_enqueue_global_styles_css_custom_properties() {
  * @param int    $priority To set the priority for the add_action.
  */
 function wp_enqueue_block_support_styles( $style, $priority = 10 ) {
+	_deprecated_function( __FUNCTION__, '6.2.0', 'wp_style_engine_get_stylesheet_from_css_rules()' );
 	$action_hook_name = 'wp_footer';
 	if ( wp_is_block_theme() ) {
 		$action_hook_name = 'wp_head';