Title: 2.1.0 | Developer.WordPress.org --- # New and updated in 2.1.0 Functions Hooks Classes Methods * hook[wp_ajax_{$action}](https://developer.wordpress.org/reference/hooks/wp_ajax_action/) * Fires authenticated Ajax actions for logged-in users. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/wp_ajax_action/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_ajax_action/#uses) | Source: [wp-admin/admin-ajax.php:192](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/admin-ajax.php#L192-L192) * hook[do_feed_{$feed}](https://developer.wordpress.org/reference/hooks/do_feed_feed/) * Fires once the given feed is loaded. * Used by [1 function](https://developer.wordpress.org/reference/hooks/do_feed_feed/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/do_feed_feed/#uses) | Source: [wp-includes/functions.php:1641](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/functions.php#L1641-L1641) * method[WP_User_Search::__construct()](https://developer.wordpress.org/reference/classes/wp_user_search/__construct/) * PHP5 Constructor – Sets up the object properties. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_user_search/__construct/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/classes/wp_user_search/__construct/#uses) | Source: [wp-admin/includes/deprecated.php:495](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/deprecated.php#L495-L506) * hook[wp_delete_file](https://developer.wordpress.org/reference/hooks/wp_delete_file/) * Filters the path of the file to delete. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_delete_file/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_delete_file/#uses) | Source: [wp-includes/functions.php:7730](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/functions.php#L7730-L7730) * hook[rss_update_frequency](https://developer.wordpress.org/reference/hooks/rss_update_frequency/) * Filters the RSS update frequency. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/rss_update_frequency/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/rss_update_frequency/#uses) | Source: [wp-includes/feed-rss2.php:74](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/feed-rss2.php#L74-L74) * hook[manage_link_custom_column](https://developer.wordpress.org/reference/hooks/manage_link_custom_column/) * Fires for each registered custom link column. * Used by [1 function](https://developer.wordpress.org/reference/hooks/manage_link_custom_column/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/manage_link_custom_column/#uses) | Source: [wp-admin/includes/class-wp-links-list-table.php:307](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/class-wp-links-list-table.php#L307-L307) * hook[register_form](https://developer.wordpress.org/reference/hooks/register_form/) * Fires following the ‘Email’ field in the user registration form. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/register_form/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/register_form/#uses) | Source: [wp-login.php:1184](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-login.php#L1184-L1184) * hook[login_form](https://developer.wordpress.org/reference/hooks/login_form/) * Fires following the ‘Password’ field in the login form. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/login_form/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/login_form/#uses) | Source: [wp-login.php:1534](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-login.php#L1534-L1534) * hook[lostpassword_post](https://developer.wordpress.org/reference/hooks/lostpassword_post/) * Fires before errors are returned from a password reset request. * Used by [1 function](https://developer.wordpress.org/reference/hooks/lostpassword_post/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/lostpassword_post/#uses) | Source: [wp-includes/user.php:3254](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/user.php#L3254-L3254) * hook[lostpassword_form](https://developer.wordpress.org/reference/hooks/lostpassword_form/) * Fires inside the lostpassword form tags, before the hidden fields. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/lostpassword_form/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/lostpassword_form/#uses) | Source: [wp-login.php:909](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-login.php#L909-L909) * hook[login_message](https://developer.wordpress.org/reference/hooks/login_message/) * Filters the message to display above the login form. * Used by [1 function](https://developer.wordpress.org/reference/hooks/login_message/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/login_message/#uses) | Source: [wp-login.php:231](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-login.php#L231-L231) * hook[login_errors](https://developer.wordpress.org/reference/hooks/login_errors/) * Filters the error messages displayed above the login form. * Used by [1 function](https://developer.wordpress.org/reference/hooks/login_errors/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/login_errors/#uses) | Source: [wp-login.php:280](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-login.php#L280-L280) * function[login_header()](https://developer.wordpress.org/reference/functions/login_header/) * Outputs the login page header. * Used by [0 functions](https://developer.wordpress.org/reference/functions/login_header/#used-by) | Uses [27 functions](https://developer.wordpress.org/reference/functions/login_header/#uses) | Source: [wp-login.php:41](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-login.php#L41-L313) * hook[login_head](https://developer.wordpress.org/reference/hooks/login_head/) * Fires in the login page header after scripts are enqueued. * Used by [1 function](https://developer.wordpress.org/reference/hooks/login_head/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/login_head/#uses) | Source: [wp-login.php:127](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-login.php#L127-L127) * hook[login_headerurl](https://developer.wordpress.org/reference/hooks/login_headerurl/) * Filters link URL of the header logo above login form. * Used by [1 function](https://developer.wordpress.org/reference/hooks/login_headerurl/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/login_headerurl/#uses) | Source: [wp-login.php:138](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-login.php#L138-L138) * hook[login_headertitle](https://developer.wordpress.org/reference/hooks/login_headertitle/) * Filters the title attribute of the header logo above login form. * Used by [1 function](https://developer.wordpress.org/reference/hooks/login_headertitle/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/login_headertitle/#uses) | Source: [wp-login.php:150](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-login.php#L150-L156) * hook[edit_category_form_pre](https://developer.wordpress.org/reference/hooks/edit_category_form_pre/) * Fires before the Edit Category form. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/edit_category_form_pre/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/edit_category_form_pre/#uses) | Source: [wp-admin/edit-tag-form.php:24](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/edit-tag-form.php#L24-L24) * function[export_wp()](https://developer.wordpress.org/reference/functions/export_wp/) * Generates the WXR export file for download. * Used by [0 functions](https://developer.wordpress.org/reference/functions/export_wp/#used-by) | Uses [42 functions](https://developer.wordpress.org/reference/functions/export_wp/#uses) | Source: [wp-admin/includes/export.php:57](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/export.php#L57-L741) * function[wxr_cdata()](https://developer.wordpress.org/reference/functions/wxr_cdata/) * Wraps given string in XML CDATA tag. * Used by [11 functions](https://developer.wordpress.org/reference/functions/wxr_cdata/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wxr_cdata/#uses) | Source: [wp-admin/includes/export.php:245](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/export.php#L245-L255) * function[wxr_cat_name()](https://developer.wordpress.org/reference/functions/wxr_cat_name/) * Outputs a cat_name XML tag from a given category object. * Used by [1 function](https://developer.wordpress.org/reference/functions/wxr_cat_name/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wxr_cat_name/#uses) | Source: [wp-admin/includes/export.php:281](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/export.php#L281-L287) * function[wxr_category_description()](https://developer.wordpress.org/reference/functions/wxr_category_description/) * Outputs a category_description XML tag from a given category object. * Used by [1 function](https://developer.wordpress.org/reference/functions/wxr_category_description/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wxr_category_description/#uses) | Source: [wp-admin/includes/export.php:296](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/export.php#L296-L302) * method[WP_User_Search::results_are_paged()](https://developer.wordpress.org/reference/classes/wp_user_search/results_are_paged/) * Whether paging is enabled. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_user_search/results_are_paged/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_user_search/results_are_paged/#uses) | Source: [wp-admin/includes/deprecated.php:658](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/deprecated.php#L658-L662) * method[WP_User_Search::is_search()](https://developer.wordpress.org/reference/classes/wp_user_search/is_search/) * Whether there are search terms. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_user_search/is_search/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_user_search/is_search/#uses) | Source: [wp-admin/includes/deprecated.php:672](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/deprecated.php#L672-L676) * class[WP_User_Search](https://developer.wordpress.org/reference/classes/wp_user_search/) * WordPress User Search class. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_user_search/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_user_search/#uses) | Source: [wp-admin/includes/deprecated.php:339](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/deprecated.php#L339-L677) * method[WP_User_Search::WP_User_Search()](https://developer.wordpress.org/reference/classes/wp_user_search/wp_user_search/) * PHP4 Constructor – Sets up the object properties. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_user_search/wp_user_search/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_user_search/wp_user_search/#uses) | Source: [wp-admin/includes/deprecated.php:518](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/deprecated.php#L518-L521) * method[WP_User_Search::prepare_query()](https://developer.wordpress.org/reference/classes/wp_user_search/prepare_query/) * Prepares the user search query (legacy). * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_user_search/prepare_query/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/classes/wp_user_search/prepare_query/#uses) | Source: [wp-admin/includes/deprecated.php:531](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/deprecated.php#L531-L561) * method[WP_User_Search::query()](https://developer.wordpress.org/reference/classes/wp_user_search/query/) * Executes the user search query. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_user_search/query/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/classes/wp_user_search/query/#uses) | Source: [wp-admin/includes/deprecated.php:571](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/deprecated.php#L571-L580) * method[WP_User_Search::prepare_vars_for_template_usage()](https://developer.wordpress.org/reference/classes/wp_user_search/prepare_vars_for_template_usage/) * Prepares variables for use in templates. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_user_search/prepare_vars_for_template_usage/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_user_search/prepare_vars_for_template_usage/#uses) | Source: [wp-admin/includes/deprecated.php:588](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/deprecated.php#L588-L588) * method[WP_User_Search::do_paging()](https://developer.wordpress.org/reference/classes/wp_user_search/do_paging/) * Handles paging for the user search query. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_user_search/do_paging/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/classes/wp_user_search/do_paging/#uses) | Source: [wp-admin/includes/deprecated.php:596](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/deprecated.php#L596-L622) * method[WP_User_Search::get_results()](https://developer.wordpress.org/reference/classes/wp_user_search/get_results/) * Retrieves the user search query results. * Used by [2 functions](https://developer.wordpress.org/reference/classes/wp_user_search/get_results/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_user_search/get_results/#uses) | Source: [wp-admin/includes/deprecated.php:632](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-admin/includes/deprecated.php#L632-L634) 1 [2](https://developer.wordpress.org/reference/since/2.1.0/page/2/?output_format=md) [3](https://developer.wordpress.org/reference/since/2.1.0/page/3/?output_format=md)… [10](https://developer.wordpress.org/reference/since/2.1.0/page/10/?output_format=md) [Next Page](https://developer.wordpress.org/reference/since/2.1.0/page/2/?output_format=md)