rebase on oct-10-2023

wp/wp-includes/blocks/pattern.php

@@ -22,6 +22,8 @@ function register_block_core_pattern() {
 /**
  * Renders the `core/pattern` block on the server.
  *
+ * @since 6.3.0 Backwards compatibility: blocks with no `syncStatus` attribute do not receive block wrapper.
+ *
  * @param array $attributes Block attributes.
  *
  * @return string Returns the output of the pattern.
@@ -33,6 +35,7 @@ function render_block_core_pattern( $attributes ) {
 
 	$slug     = $attributes['slug'];
 	$registry = WP_Block_Patterns_Registry::get_instance();
+
 	if ( ! $registry->is_registered( $slug ) ) {
 		return '';
 	}