Title: 3.6.0 | Developer.WordPress.org --- # New and updated in 3.6.0 Functions Hooks Classes Methods * hook[wp_login_errors](https://developer.wordpress.org/reference/hooks/wp_login_errors/) * Filters the login page errors. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/wp_login_errors/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_login_errors/#uses) | Source: [wp-login.php:1482](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-login.php#L1482-L1482) * hook[upgrader_process_complete](https://developer.wordpress.org/reference/hooks/upgrader_process_complete/) * Fires when the upgrader process is complete. * Used by [5 functions](https://developer.wordpress.org/reference/hooks/upgrader_process_complete/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/upgrader_process_complete/#uses) | Source: [wp-admin/includes/class-wp-upgrader.php:988](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/class-wp-upgrader.php#L988-L988) * function[wp_check_locked_posts()](https://developer.wordpress.org/reference/functions/wp_check_locked_posts/) * Checks lock status for posts displayed on the Posts screen. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_check_locked_posts/#used-by) | Uses [7 functions](https://developer.wordpress.org/reference/functions/wp_check_locked_posts/#uses) | Source: [wp-admin/includes/misc.php:1138](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/misc.php#L1138-L1177) * function[wp_refresh_post_lock()](https://developer.wordpress.org/reference/functions/wp_refresh_post_lock/) * Checks lock status on the New/Edit Post screen and refresh the lock. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_refresh_post_lock/#used-by) | Uses [8 functions](https://developer.wordpress.org/reference/functions/wp_refresh_post_lock/#uses) | Source: [wp-admin/includes/misc.php:1189](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/misc.php#L1189-L1232) * function[wp_refresh_post_nonces()](https://developer.wordpress.org/reference/functions/wp_refresh_post_nonces/) * Checks nonce expiration on the New/Edit Post screen and refresh if needed. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_refresh_post_nonces/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_refresh_post_nonces/#uses) | Source: [wp-admin/includes/misc.php:1244](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/misc.php#L1244-L1272) * function[_local_storage_notice()](https://developer.wordpress.org/reference/functions/_local_storage_notice/) * Outputs the HTML for restoring the post data from DOM storage * Used by [0 functions](https://developer.wordpress.org/reference/functions/_local_storage_notice/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/_local_storage_notice/#uses) | Source: [wp-admin/includes/template.php:2724](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/template.php#L2724-L2741) * hook[display_post_states](https://developer.wordpress.org/reference/hooks/display_post_states/) * Filters the default post display states used in the posts list table. * Used by [1 function](https://developer.wordpress.org/reference/hooks/display_post_states/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/display_post_states/#uses) | Source: [wp-admin/includes/template.php:2368](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/template.php#L2368-L2368) * function[do_accordion_sections()](https://developer.wordpress.org/reference/functions/do_accordion_sections/) * Meta Box Accordion Template Function. * Used by [0 functions](https://developer.wordpress.org/reference/functions/do_accordion_sections/#used-by) | Uses [7 functions](https://developer.wordpress.org/reference/functions/do_accordion_sections/#uses) | Source: [wp-admin/includes/template.php:1539](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/template.php#L1539-L1604) * function[wp_add_id3_tag_data()](https://developer.wordpress.org/reference/functions/wp_add_id3_tag_data/) * Parses ID3v2, ID3v1, and getID3 comments to extract usable data. * Used by [2 functions](https://developer.wordpress.org/reference/functions/wp_add_id3_tag_data/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/wp_add_id3_tag_data/#uses) | Source: [wp-admin/includes/media.php:3545](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/media.php#L3545-L3580) * function[wp_read_video_metadata()](https://developer.wordpress.org/reference/functions/wp_read_video_metadata/) * Retrieves metadata from a video file’s ID3 tags. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_read_video_metadata/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/functions/wp_read_video_metadata/#uses) | Source: [wp-admin/includes/media.php:3590](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/media.php#L3590-L3695) * function[wp_read_audio_metadata()](https://developer.wordpress.org/reference/functions/wp_read_audio_metadata/) * Retrieves metadata from an audio file’s ID3 tags. * Used by [2 functions](https://developer.wordpress.org/reference/functions/wp_read_audio_metadata/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/functions/wp_read_audio_metadata/#uses) | Source: [wp-admin/includes/media.php:3705](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/media.php#L3705-L3778) * hook[post_lock_lost_dialog](https://developer.wordpress.org/reference/hooks/post_lock_lost_dialog/) * Fires inside the dialog displayed when a user has lost the post lock. * Used by [1 function](https://developer.wordpress.org/reference/hooks/post_lock_lost_dialog/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/post_lock_lost_dialog/#uses) | Source: [wp-admin/includes/post.php:1935](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/post.php#L1935-L1935) * hook[show_post_locked_dialog](https://developer.wordpress.org/reference/hooks/show_post_locked_dialog/) * Filters whether to show the post locked dialog. * Used by [1 function](https://developer.wordpress.org/reference/hooks/show_post_locked_dialog/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/show_post_locked_dialog/#uses) | Source: [wp-admin/includes/post.php:1812](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/post.php#L1812-L1812) * hook[override_post_lock](https://developer.wordpress.org/reference/hooks/override_post_lock/) * Filters whether to allow the post lock to be overridden. * Used by [1 function](https://developer.wordpress.org/reference/hooks/override_post_lock/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/override_post_lock/#uses) | Source: [wp-admin/includes/post.php:1871](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/post.php#L1871-L1871) * hook[post_locked_dialog](https://developer.wordpress.org/reference/hooks/post_locked_dialog/) * Fires inside the post locked dialog before the buttons are displayed. * Used by [1 function](https://developer.wordpress.org/reference/hooks/post_locked_dialog/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/post_locked_dialog/#uses) | Source: [wp-admin/includes/post.php:1898](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/post.php#L1898-L1898) * function[wp_ajax_heartbeat()](https://developer.wordpress.org/reference/functions/wp_ajax_heartbeat/) * Handles the Heartbeat API via AJAX. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_ajax_heartbeat/#used-by) | Uses [7 functions](https://developer.wordpress.org/reference/functions/wp_ajax_heartbeat/#uses) | Source: [wp-admin/includes/ajax-actions.php:3464](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/ajax-actions.php#L3464-L3542) * hook[heartbeat_received](https://developer.wordpress.org/reference/hooks/heartbeat_received/) * Filters the Heartbeat response received. * Used by [1 function](https://developer.wordpress.org/reference/hooks/heartbeat_received/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/heartbeat_received/#uses) | Source: [wp-admin/includes/ajax-actions.php:3513](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/ajax-actions.php#L3513-L3513) * hook[heartbeat_send](https://developer.wordpress.org/reference/hooks/heartbeat_send/) * Filters the Heartbeat response sent. * Used by [1 function](https://developer.wordpress.org/reference/hooks/heartbeat_send/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/heartbeat_send/#uses) | Source: [wp-admin/includes/ajax-actions.php:3524](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/ajax-actions.php#L3524-L3524) * hook[heartbeat_tick](https://developer.wordpress.org/reference/hooks/heartbeat_tick/) * Fires when Heartbeat ticks in logged-in environments. * Used by [1 function](https://developer.wordpress.org/reference/hooks/heartbeat_tick/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/heartbeat_tick/#uses) | Source: [wp-admin/includes/ajax-actions.php:3536](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/ajax-actions.php#L3536-L3536) * function[wp_ajax_get_revision_diffs()](https://developer.wordpress.org/reference/functions/wp_ajax_get_revision_diffs/) * Handles getting revision diffs via AJAX. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_ajax_get_revision_diffs/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/wp_ajax_get_revision_diffs/#uses) | Source: [wp-admin/includes/ajax-actions.php:3549](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/ajax-actions.php#L3549-L3583) * hook[heartbeat_nopriv_received](https://developer.wordpress.org/reference/hooks/heartbeat_nopriv_received/) * Filters Heartbeat Ajax response in no-privilege environments. * Used by [1 function](https://developer.wordpress.org/reference/hooks/heartbeat_nopriv_received/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/heartbeat_nopriv_received/#uses) | Source: [wp-admin/includes/ajax-actions.php:43](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/ajax-actions.php#L43-L43) * hook[heartbeat_nopriv_send](https://developer.wordpress.org/reference/hooks/heartbeat_nopriv_send/) * Filters Heartbeat Ajax response in no-privilege environments when no data is passed. * Used by [1 function](https://developer.wordpress.org/reference/hooks/heartbeat_nopriv_send/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/heartbeat_nopriv_send/#uses) | Source: [wp-admin/includes/ajax-actions.php:54](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/ajax-actions.php#L54-L54) * hook[heartbeat_nopriv_tick](https://developer.wordpress.org/reference/hooks/heartbeat_nopriv_tick/) * Fires when Heartbeat ticks in no-privilege environments. * Used by [1 function](https://developer.wordpress.org/reference/hooks/heartbeat_nopriv_tick/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/heartbeat_nopriv_tick/#uses) | Source: [wp-admin/includes/ajax-actions.php:66](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/ajax-actions.php#L66-L66) * function[wp_get_revision_ui_diff()](https://developer.wordpress.org/reference/functions/wp_get_revision_ui_diff/) * Get the revision UI diff. * Used by [2 functions](https://developer.wordpress.org/reference/functions/wp_get_revision_ui_diff/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/wp_get_revision_ui_diff/#uses) | Source: [wp-admin/includes/revision.php:21](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/revision.php#L21-L164) * hook[_wp_post_revision_field_{$field}](https://developer.wordpress.org/reference/hooks/_wp_post_revision_field_field/) * Contextually filter a post revision field. * Used by [1 function](https://developer.wordpress.org/reference/hooks/_wp_post_revision_field_field/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/_wp_post_revision_field_field/#uses) | Source: [wp-admin/includes/revision.php:90](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/revision.php#L90-L90) * function[wp_prepare_revisions_for_js()](https://developer.wordpress.org/reference/functions/wp_prepare_revisions_for_js/) * Prepare revisions for JavaScript. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_prepare_revisions_for_js/#used-by) | Uses [21 functions](https://developer.wordpress.org/reference/functions/wp_prepare_revisions_for_js/#uses) | Source: [wp-admin/includes/revision.php:176](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/revision.php#L176-L355) * function[wp_ajax_nopriv_heartbeat()](https://developer.wordpress.org/reference/functions/wp_ajax_nopriv_heartbeat/) * Handles the Heartbeat API in the no-privilege context via AJAX . * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_ajax_nopriv_heartbeat/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/functions/wp_ajax_nopriv_heartbeat/#uses) | Source: [wp-admin/includes/ajax-actions.php:21](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/ajax-actions.php#L21-L72) * function[wp_nav_menu_update_menu_items()](https://developer.wordpress.org/reference/functions/wp_nav_menu_update_menu_items/) * Saves nav menu items. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_nav_menu_update_menu_items/#used-by) | Uses [12 functions](https://developer.wordpress.org/reference/functions/wp_nav_menu_update_menu_items/#uses) | Source: [wp-admin/includes/nav-menu.php:1402](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/nav-menu.php#L1402-L1527) * function[wp_nav_menu_disabled_check()](https://developer.wordpress.org/reference/functions/wp_nav_menu_disabled_check/) * Check whether to disable the Menu Locations meta box submit button and inputs. * Used by [4 functions](https://developer.wordpress.org/reference/functions/wp_nav_menu_disabled_check/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_nav_menu_disabled_check/#uses) | Source: [wp-admin/includes/nav-menu.php:339](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/includes/nav-menu.php#L339-L347) * hook[after_menu_locations_table](https://developer.wordpress.org/reference/hooks/after_menu_locations_table/) * Fires after the menu locations table is displayed. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/after_menu_locations_table/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/after_menu_locations_table/#uses) | Source: [wp-admin/nav-menus.php:941](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-admin/nav-menus.php#L941-L941) 1 [2](https://developer.wordpress.org/reference/since/3.6.0/page/2/?output_format=md) [3](https://developer.wordpress.org/reference/since/3.6.0/page/3/?output_format=md)… [5](https://developer.wordpress.org/reference/since/3.6.0/page/5/?output_format=md) [Next Page](https://developer.wordpress.org/reference/since/3.6.0/page/2/?output_format=md)