Title: 4.6.0 | Page 5 of 9 | Developer.WordPress.org --- # New and updated in 4.6.0 Functions Hooks Classes Methods * hook[emoji_svg_url](https://developer.wordpress.org/reference/hooks/emoji_svg_url/) * Filters the URL where emoji SVG images are hosted. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/emoji_svg_url/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/emoji_svg_url/#uses) | Source: [wp-includes/formatting.php:6050](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/formatting.php#L6050-L6050) * hook[emoji_svg_ext](https://developer.wordpress.org/reference/hooks/emoji_svg_ext/) * Filters the extension of the emoji SVG files. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/emoji_svg_ext/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/emoji_svg_ext/#uses) | Source: [wp-includes/formatting.php:6059](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/formatting.php#L6059-L6059) * function[_wp_preview_post_thumbnail_filter()](https://developer.wordpress.org/reference/functions/_wp_preview_post_thumbnail_filter/) * Filters post thumbnail lookup to set the post thumbnail. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_wp_preview_post_thumbnail_filter/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/_wp_preview_post_thumbnail_filter/#uses) | Source: [wp-includes/revision.php:957](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/revision.php#L957-L978) * function[wp_get_canonical_url()](https://developer.wordpress.org/reference/functions/wp_get_canonical_url/) * Returns the canonical URL for a post. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_get_canonical_url/#used-by) | Uses [11 functions](https://developer.wordpress.org/reference/functions/wp_get_canonical_url/#uses) | Source: [wp-includes/link-template.php:4068](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/link-template.php#L4068-L4107) * hook[get_canonical_url](https://developer.wordpress.org/reference/hooks/get_canonical_url/) * Filters the canonical URL for a post. * Used by [1 function](https://developer.wordpress.org/reference/hooks/get_canonical_url/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/get_canonical_url/#uses) | Source: [wp-includes/link-template.php:4106](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/link-template.php#L4106-L4106) * function[wp_get_attachment_caption()](https://developer.wordpress.org/reference/functions/wp_get_attachment_caption/) * Retrieves the caption for an attachment. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_get_attachment_caption/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/wp_get_attachment_caption/#uses) | Source: [wp-includes/post.php:7265](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/post.php#L7265-L7288) * hook[wp_get_attachment_caption](https://developer.wordpress.org/reference/hooks/wp_get_attachment_caption/) * Filters the attachment caption. * Used by [1 function](https://developer.wordpress.org/reference/hooks/wp_get_attachment_caption/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/wp_get_attachment_caption/#uses) | Source: [wp-includes/post.php:7287](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/post.php#L7287-L7287) * hook[post_unstuck](https://developer.wordpress.org/reference/hooks/post_unstuck/) * Fires once a post has been removed from the sticky list. * Used by [1 function](https://developer.wordpress.org/reference/hooks/post_unstuck/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/post_unstuck/#uses) | Source: [wp-includes/post.php:3416](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/post.php#L3416-L3416) * hook[post_stuck](https://developer.wordpress.org/reference/hooks/post_stuck/) * Fires once a post has been added to the sticky list. * Used by [1 function](https://developer.wordpress.org/reference/hooks/post_stuck/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/post_stuck/#uses) | Source: [wp-includes/post.php:3372](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/post.php#L3372-L3372) * method[WP_Http::normalize_cookies()](https://developer.wordpress.org/reference/classes/wp_http/normalize_cookies/) * Normalizes cookies for using in Requests. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_http/normalize_cookies/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_http/normalize_cookies/#uses) | Source: [wp-includes/class-wp-http.php:479](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-http.php#L479-L497) * method[WP_Http::browser_redirect_compatibility()](https://developer.wordpress.org/reference/classes/wp_http/browser_redirect_compatibility/) * Match redirect behavior to browser handling. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_http/browser_redirect_compatibility/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_http/browser_redirect_compatibility/#uses) | Source: [wp-includes/class-wp-http.php:514](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-http.php#L514-L519) * hook[found_sites_query](https://developer.wordpress.org/reference/hooks/found_sites_query/) * Filters the query used to retrieve found site count. * Used by [1 function](https://developer.wordpress.org/reference/hooks/found_sites_query/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/found_sites_query/#uses) | Source: [wp-includes/class-wp-site-query.php:745](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L745-L745) * method[WP_Site_Query::get_search_sql()](https://developer.wordpress.org/reference/classes/wp_site_query/get_search_sql/) * Used internally to generate an SQL string for searching across multiple columns. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_site_query/get_search_sql/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_site_query/get_search_sql/#uses) | Source: [wp-includes/class-wp-site-query.php:762](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L762-L777) * method[WP_Site_Query::parse_orderby()](https://developer.wordpress.org/reference/classes/wp_site_query/parse_orderby/) * Parses and sanitizes ‘orderby’ keys passed to the site query. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_site_query/parse_orderby/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_site_query/parse_orderby/#uses) | Source: [wp-includes/class-wp-site-query.php:789](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L789-L861) * method[WP_Site_Query::parse_order()](https://developer.wordpress.org/reference/classes/wp_site_query/parse_order/) * Parses an ‘order’ query variable and cast it to ‘ASC’ or ‘DESC’ as necessary. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_site_query/parse_order/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_site_query/parse_order/#uses) | Source: [wp-includes/class-wp-site-query.php:871](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L871-L881) * method[WP_Site_Query::set_found_sites()](https://developer.wordpress.org/reference/classes/wp_site_query/set_found_sites/) * Populates found_sites and max_num_pages properties for the current query if the limit clause was used. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_site_query/set_found_sites/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_site_query/set_found_sites/#uses) | Source: [wp-includes/class-wp-site-query.php:733](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L733-L749) * method[WP_Site_Query::query()](https://developer.wordpress.org/reference/classes/wp_site_query/query/) * Sets up the WordPress query for retrieving sites. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_site_query/query/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_site_query/query/#uses) | Source: [wp-includes/class-wp-site-query.php:269](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L269-L273) * method[WP_Site_Query::get_sites()](https://developer.wordpress.org/reference/classes/wp_site_query/get_sites/) * Retrieves a list of sites matching the query vars. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_site_query/get_sites/#used-by) | Uses [13 functions](https://developer.wordpress.org/reference/classes/wp_site_query/get_sites/#uses) | Source: [wp-includes/class-wp-site-query.php:285](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L285-L429) * hook[pre_get_sites](https://developer.wordpress.org/reference/hooks/pre_get_sites/) * Fires before sites are retrieved. * Used by [1 function](https://developer.wordpress.org/reference/hooks/pre_get_sites/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/pre_get_sites/#uses) | Source: [wp-includes/class-wp-site-query.php:301](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L301-L301) * hook[the_sites](https://developer.wordpress.org/reference/hooks/the_sites/) * Filters the site query results. * Used by [1 function](https://developer.wordpress.org/reference/hooks/the_sites/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/the_sites/#uses) | Source: [wp-includes/class-wp-site-query.php:423](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L423-L423) * method[WP_Site_Query::get_site_ids()](https://developer.wordpress.org/reference/classes/wp_site_query/get_site_ids/) * Used internally to get a list of site IDs matching the query vars. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_site_query/get_site_ids/#used-by) | Uses [12 functions](https://developer.wordpress.org/reference/classes/wp_site_query/get_site_ids/#uses) | Source: [wp-includes/class-wp-site-query.php:440](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L440-L723) * hook[site_search_columns](https://developer.wordpress.org/reference/hooks/site_search_columns/) * Filters the columns to search in a WP_Site_Query search. * Used by [1 function](https://developer.wordpress.org/reference/hooks/site_search_columns/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/site_search_columns/#uses) | Source: [wp-includes/class-wp-site-query.php:627](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L627-L627) * hook[sites_clauses](https://developer.wordpress.org/reference/hooks/sites_clauses/) * Filters the site query clauses. * Used by [1 function](https://developer.wordpress.org/reference/hooks/sites_clauses/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/sites_clauses/#uses) | Source: [wp-includes/class-wp-site-query.php:675](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L675-L675) * class[WP_Site_Query](https://developer.wordpress.org/reference/classes/wp_site_query/) * Core class used for querying sites. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_site_query/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_site_query/#uses) | Source: [wp-includes/class-wp-site-query.php:17](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L17-L882) * method[WP_Site_Query::__construct()](https://developer.wordpress.org/reference/classes/wp_site_query/__construct/) * Sets up the site query, based on the query vars passed. * Used by [2 functions](https://developer.wordpress.org/reference/classes/wp_site_query/__construct/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/classes/wp_site_query/__construct/#uses) | Source: [wp-includes/class-wp-site-query.php:188](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L188-L232) * method[WP_Site_Query::parse_query()](https://developer.wordpress.org/reference/classes/wp_site_query/parse_query/) * Parses arguments passed to the site query with default query parameters. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_site_query/parse_query/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/classes/wp_site_query/parse_query/#uses) | Source: [wp-includes/class-wp-site-query.php:243](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L243-L258) * hook[parse_site_query](https://developer.wordpress.org/reference/hooks/parse_site_query/) * Fires after the site query vars have been parsed. * Used by [1 function](https://developer.wordpress.org/reference/hooks/parse_site_query/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/parse_site_query/#uses) | Source: [wp-includes/class-wp-site-query.php:257](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-site-query.php#L257-L257) * function[apply_filters_deprecated()](https://developer.wordpress.org/reference/functions/apply_filters_deprecated/) * Fires functions attached to a deprecated filter hook. * Used by [25 functions](https://developer.wordpress.org/reference/functions/apply_filters_deprecated/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/apply_filters_deprecated/#uses) | Source: [wp-includes/plugin.php:723](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/plugin.php#L723-L731) * function[do_action_deprecated()](https://developer.wordpress.org/reference/functions/do_action_deprecated/) * Fires functions attached to a deprecated action hook. * Used by [10 functions](https://developer.wordpress.org/reference/functions/do_action_deprecated/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/do_action_deprecated/#uses) | Source: [wp-includes/plugin.php:750](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/plugin.php#L750-L758) * hook[redirect_term_location](https://developer.wordpress.org/reference/hooks/redirect_term_location/) * Filters the taxonomy redirect destination URL. * Used by [0 functions](https://developer.wordpress.org/reference/hooks/redirect_term_location/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/redirect_term_location/#uses) | Source: 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