load 6.6 compat rest api

lib/compat/wordpress-6.6/rest-api.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * PHP and WordPress configuration compatibility functions for the Gutenberg
+ * editor plugin changes related to REST API.
+ *
+ * @package gutenberg
+ */
+
+if ( ! defined( 'ABSPATH' ) ) {
+	die( 'Silence is golden.' );
+}
+
+if ( ! function_exists( 'wp_api_template_access_controller' ) ) {
+	/**
+	 * Hook in to the template and template part post types and modify the
+	 * access control for the rest endpoint to allow lower user roles to access
+	 * the templates and template parts.
+	 *
+	 * @param array  $args Current registered post type args.
+	 * @param string $post_type Name of post type.
+	 *
+	 * @return array
+	 */
+	function wp_api_template_access_controller( $args, $post_type ) {
+		if ( 'wp_template' === $post_type || 'wp_template_part' === $post_type ) {
+			$args['rest_controller_class'] = 'Gutenberg_REST_Templates_Controller_6_6';
+		}
+		return $args;
+	}
+}
+add_filter( 'register_post_type_args', 'wp_api_template_access_controller', 10, 2 );

lib/load.php

@@ -46,6 +46,10 @@ function gutenberg_is_experiment_enabled( $name ) {
 	require_once __DIR__ . '/compat/wordpress-6.5/class-gutenberg-rest-global-styles-revisions-controller-6-5.php';
 	require_once __DIR__ . '/compat/wordpress-6.5/rest-api.php';
 
+	// WordPress 6.6 compat.
+	require_once __DIR__ . '/compat/wordpress-6.6/class-gutenberg-rest-templates-controller-6-6.php';
+	require_once __DIR__ . '/compat/wordpress-6.6/rest-api.php';
+
 	// Plugin specific code.
 	require_once __DIR__ . '/class-wp-rest-global-styles-controller-gutenberg.php';
 	require_once __DIR__ . '/rest-api.php';