Title: 5.9.0 | Page 2 of 12 | Developer.WordPress.org --- # New and updated in 5.9.0 Functions Hooks Classes Methods * method[WP_REST_Sidebars_Controller::retrieve_widgets()](https://developer.wordpress.org/reference/classes/wp_rest_sidebars_controller/retrieve_widgets/) * Looks for “lost” widgets once per request. * Used by [4 functions](https://developer.wordpress.org/reference/classes/wp_rest_sidebars_controller/retrieve_widgets/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/classes/wp_rest_sidebars_controller/retrieve_widgets/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-sidebars-controller.php:303](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-sidebars-controller.php#L303-L308) * method[WP_REST_Menu_Items_Controller::prepare_item_for_response()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_item_for_response/) * Prepares a single nav menu item output for response. * Used by [3 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_item_for_response/#used-by) | Uses [12 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_item_for_response/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:508](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L508-L655) * hook[rest_prepare_nav_menu_item](https://developer.wordpress.org/reference/hooks/rest_prepare_nav_menu_item/) * Filters the menu item data for a REST API response. * Used by [1 function](https://developer.wordpress.org/reference/hooks/rest_prepare_nav_menu_item/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/rest_prepare_nav_menu_item/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:654](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L654-L654) * method[WP_REST_Menu_Items_Controller::prepare_links()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_links/) * Prepares links for the request. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_links/#used-by) | Uses [7 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_links/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:665](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L665-L693) * method[WP_REST_Menu_Items_Controller::get_schema_links()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_schema_links/) * Retrieves Link Description Objects that should be added to the Schema for the nav menu items collection. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_schema_links/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_schema_links/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:702](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L702-L720) * method[WP_REST_Menu_Items_Controller::get_item_schema()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_item_schema/) * Retrieves the nav menu item’s schema, conforming to JSON Schema. * Used by [3 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_item_schema/#used-by) | Uses [8 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_item_schema/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:729](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L729-L941) * method[WP_REST_Menu_Items_Controller::get_collection_params()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_collection_params/) * Retrieves the query params for the nav menu items collection. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_collection_params/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_collection_params/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:950](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L950-L987) * method[WP_REST_Menu_Items_Controller::prepare_items_query()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_items_query/) * Determines the allowed query_vars for a get_items() response and prepares them for WP_Query. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_items_query/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_items_query/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:999](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L999-L1020) * method[WP_REST_Menu_Items_Controller::get_menu_id()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_menu_id/) * Gets the id of the menu that the given menu item belongs to. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_menu_id/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_menu_id/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:1030](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L1030-L1038) * hook[rest_delete_nav_menu_item](https://developer.wordpress.org/reference/hooks/rest_delete_nav_menu_item/) * Fires immediately after a single menu item is deleted via the REST API. * Used by [1 function](https://developer.wordpress.org/reference/hooks/rest_delete_nav_menu_item/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/rest_delete_nav_menu_item/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:329](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L329-L329) * method[WP_REST_Menu_Items_Controller::prepare_item_for_database()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_item_for_database/) * Prepares a single nav menu item for create or update. * Used by [2 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_item_for_database/#used-by) | Uses [14 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/prepare_item_for_database/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:343](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L343-L497) * hook[rest_pre_insert_nav_menu_item](https://developer.wordpress.org/reference/hooks/rest_pre_insert_nav_menu_item/) * Filters a menu item before it is inserted via the REST API. * Used by [1 function](https://developer.wordpress.org/reference/hooks/rest_pre_insert_nav_menu_item/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/rest_pre_insert_nav_menu_item/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:496](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L496-L496) * method[WP_REST_Global_Styles_Controller::get_theme_item_permissions_check()](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_theme_item_permissions_check/) * Checks if a given request has access to read a single theme global styles config. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_theme_item_permissions_check/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_theme_item_permissions_check/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php:523](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php#L523-L552) * method[WP_REST_Global_Styles_Controller::get_theme_item()](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_theme_item/) * Returns the given theme global styles config. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_theme_item/#used-by) | Uses [8 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_theme_item/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php:563](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php#L563-L606) * class[WP_REST_Menu_Items_Controller](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/) * Core class to access nav items via the REST API. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:17](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L17-L1039) * method[WP_REST_Menu_Items_Controller::get_nav_menu_item()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_nav_menu_item/) * Gets the nav menu item, if the ID is valid. * Used by [6 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_nav_menu_item/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_nav_menu_item/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:27](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L27-L34) * method[WP_REST_Menu_Items_Controller::get_items_permissions_check()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_items_permissions_check/) * Checks if a given request has access to read menu items. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_items_permissions_check/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_items_permissions_check/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:44](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L44-L52) * method[WP_REST_Menu_Items_Controller::get_item_permissions_check()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_item_permissions_check/) * Checks if a given request has access to read a menu item if they have access to edit them. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_item_permissions_check/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/get_item_permissions_check/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:62](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L62-L70) * method[WP_REST_Menu_Items_Controller::check_has_read_only_access()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/check_has_read_only_access/) * Checks whether the current user has read permission for the endpoint. * Used by [2 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/check_has_read_only_access/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/check_has_read_only_access/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:82](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L82-L117) * method[WP_REST_Menu_Items_Controller::create_item()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/create_item/) * Creates a single nav menu item. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/create_item/#used-by) | Uses [14 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/create_item/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:127](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L127-L208) * hook[rest_insert_nav_menu_item](https://developer.wordpress.org/reference/hooks/rest_insert_nav_menu_item/) * Fires after a single menu item is created or updated via the REST API. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/rest_insert_nav_menu_item/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/rest_insert_nav_menu_item/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:166](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L166-L166) * hook[rest_after_insert_nav_menu_item](https://developer.wordpress.org/reference/hooks/rest_after_insert_nav_menu_item/) * Fires after a single menu item is completely created or updated via the REST API. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/rest_after_insert_nav_menu_item/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/rest_after_insert_nav_menu_item/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:196](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L196-L196) * method[WP_REST_Menu_Items_Controller::update_item()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/update_item/) * Updates a single nav menu item. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/update_item/#used-by) | Uses [11 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/update_item/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:218](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L218-L282) * method[WP_REST_Menu_Items_Controller::delete_item()](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/delete_item/) * Deletes a single nav menu item. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/delete_item/#used-by) | Uses [8 functions](https://developer.wordpress.org/reference/classes/wp_rest_menu_items_controller/delete_item/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php:292](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-menu-items-controller.php#L292-L332) * method[WP_REST_Global_Styles_Controller::get_available_actions()](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_available_actions/) * Get the link relations available for the post and current user. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_available_actions/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_available_actions/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php:428](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php#L428-L441) * method[WP_REST_Global_Styles_Controller::protected_title_format()](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/protected_title_format/) * Overwrites the default protected title format. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/protected_title_format/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/protected_title_format/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php:486](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php#L486-L488) * method[WP_REST_Global_Styles_Controller::get_collection_params()](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_collection_params/) * Retrieves the query params for the global styles collection. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_collection_params/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_collection_params/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php:450](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php#L450-L452) * method[WP_REST_Global_Styles_Controller::get_item_schema()](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_item_schema/) * Retrieves the global styles type’ schema, conforming to JSON Schema. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_item_schema/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/get_item_schema/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php:461](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php#L461-L512) * method[WP_REST_Global_Styles_Controller::register_routes()](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/register_routes/) * Registers the controllers routes. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/register_routes/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/register_routes/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php:38](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php#L38-L114) * method[WP_REST_Global_Styles_Controller::_sanitize_global_styles_callback()](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/_sanitize_global_styles_callback/) * Sanitize the global styles stylesheet to decode endpoint. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/_sanitize_global_styles_callback/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_rest_global_styles_controller/_sanitize_global_styles_callback/#uses) | Source: [wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php:126](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php#L126-L128) [Previous Page](https://developer.wordpress.org/reference/since/5.9.0/?output_format=md) [1](https://developer.wordpress.org/reference/since/5.9.0/?output_format=md) 2 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