Title: 6.5.0 | Developer.WordPress.org --- # New and updated in 6.5.0 Functions Hooks Classes Methods * method[WP_Theme_JSON::get_block_style_variation_selector()](https://developer.wordpress.org/reference/classes/wp_theme_json/get_block_style_variation_selector/) * Generates a selector for a block style variation. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_theme_json/get_block_style_variation_selector/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_theme_json/get_block_style_variation_selector/#uses) | Source: [wp-includes/class-wp-theme-json.php:4788](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-theme-json.php#L4788-L4811) * method[WP_Theme_JSON::schema_in_root_and_per_origin()](https://developer.wordpress.org/reference/classes/wp_theme_json/schema_in_root_and_per_origin/) * Return the input schema at the root and per origin. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_theme_json/schema_in_root_and_per_origin/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_theme_json/schema_in_root_and_per_origin/#uses) | Source: [wp-includes/class-wp-theme-json.php:731](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-theme-json.php#L731-L737) * function[_wp_register_default_font_collections()](https://developer.wordpress.org/reference/functions/_wp_register_default_font_collections/) * Register the default font collections. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_wp_register_default_font_collections/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/_wp_register_default_font_collections/#uses) | Source: [wp-includes/fonts.php:263](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts.php#L263-L294) * hook[font_dir](https://developer.wordpress.org/reference/hooks/font_dir/) * Filters the fonts directory data. * Used by [1 function](https://developer.wordpress.org/reference/hooks/font_dir/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/font_dir/#uses) | Source: [wp-includes/fonts.php:205](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts.php#L205-L205) * function[_wp_after_delete_font_family()](https://developer.wordpress.org/reference/functions/_wp_after_delete_font_family/) * Deletes child font faces when a font family is deleted. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_wp_after_delete_font_family/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/_wp_after_delete_font_family/#uses) | Source: [wp-includes/fonts.php:217](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts.php#L217-L233) * function[_wp_before_delete_font_face()](https://developer.wordpress.org/reference/functions/_wp_before_delete_font_face/) * Deletes associated font files when a font face is deleted. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_wp_before_delete_font_face/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/functions/_wp_before_delete_font_face/#uses) | Source: [wp-includes/fonts.php:244](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts.php#L244-L255) * function[wp_unregister_font_collection()](https://developer.wordpress.org/reference/functions/wp_unregister_font_collection/) * Unregisters a font collection from the Font Library. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_unregister_font_collection/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_unregister_font_collection/#uses) | Source: [wp-includes/fonts.php:108](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts.php#L108-L110) * function[wp_get_font_dir()](https://developer.wordpress.org/reference/functions/wp_get_font_dir/) * Retrieves font uploads directory information. * Used by [5 functions](https://developer.wordpress.org/reference/functions/wp_get_font_dir/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_get_font_dir/#uses) | Source: [wp-includes/fonts.php:125](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts.php#L125-L127) * function[wp_font_dir()](https://developer.wordpress.org/reference/functions/wp_font_dir/) * Returns an array containing the current fonts upload directory’s path and URL. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_font_dir/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_font_dir/#uses) | Source: [wp-includes/fonts.php:146](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts.php#L146-L158) * function[_wp_filter_font_directory()](https://developer.wordpress.org/reference/functions/_wp_filter_font_directory/) * A callback function for use in the {@see ‘upload_dir’} filter. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_wp_filter_font_directory/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/_wp_filter_font_directory/#uses) | Source: [wp-includes/fonts.php:172](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts.php#L172-L206) * function[wp_register_font_collection()](https://developer.wordpress.org/reference/functions/wp_register_font_collection/) * Registers a new font collection in the font library. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_register_font_collection/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_register_font_collection/#uses) | Source: [wp-includes/fonts.php:96](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/fonts.php#L96-L98) * method[WP_Block_Bindings_Registry::__wakeup()](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/__wakeup/) * Wakeup magic method. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/__wakeup/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/__wakeup/#uses) | Source: [wp-includes/class-wp-block-bindings-registry.php:251](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-bindings-registry.php#L251-L263) * method[WP_Block_Bindings_Registry::get_instance()](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/get_instance/) * Utility method to retrieve the main instance of the class. * Used by [4 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/get_instance/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/get_instance/#uses) | Source: [wp-includes/class-wp-block-bindings-registry.php:274](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-bindings-registry.php#L274-L280) * method[WP_Block_Bindings_Registry::is_registered()](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/is_registered/) * Checks if a block bindings source is registered. * Used by [3 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/is_registered/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/is_registered/#uses) | Source: [wp-includes/class-wp-block-bindings-registry.php:242](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-bindings-registry.php#L242-L244) * method[WP_Block_Bindings_Registry::unregister()](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/unregister/) * Unregisters a block bindings source. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/unregister/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/unregister/#uses) | Source: [wp-includes/class-wp-block-bindings-registry.php:190](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-bindings-registry.php#L190-L205) * method[WP_Block_Bindings_Registry::get_all_registered()](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/get_all_registered/) * Retrieves the list of all registered block bindings sources. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/get_all_registered/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/get_all_registered/#uses) | Source: [wp-includes/class-wp-block-bindings-registry.php:214](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-bindings-registry.php#L214-L216) * method[WP_Block_Bindings_Registry::get_registered()](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/get_registered/) * Retrieves a registered block bindings source. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/get_registered/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/get_registered/#uses) | Source: [wp-includes/class-wp-block-bindings-registry.php:226](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-bindings-registry.php#L226-L232) * class[WP_Block_Bindings_Registry](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/) * Core class used for interacting with block bindings sources. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/#uses) | Source: [wp-includes/class-wp-block-bindings-registry.php:17](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-bindings-registry.php#L17-L281) * method[WP_Block_Bindings_Registry::register()](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/register/) * Registers a new block bindings source. * Used by [0 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/register/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/classes/wp_block_bindings_registry/register/#uses) | Source: [wp-includes/class-wp-block-bindings-registry.php:84](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-bindings-registry.php#L84-L180) * function[wp_is_serving_rest_request()](https://developer.wordpress.org/reference/functions/wp_is_serving_rest_request/) * Determines whether WordPress is currently serving a REST API request. * Used by [7 functions](https://developer.wordpress.org/reference/functions/wp_is_serving_rest_request/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/wp_is_serving_rest_request/#uses) | Source: [wp-includes/functions.php:4813](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/functions.php#L4813-L4815) * function[_register_block_bindings_post_meta_source()](https://developer.wordpress.org/reference/functions/_register_block_bindings_post_meta_source/) * Registers Post Meta source in the block bindings registry. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_register_block_bindings_post_meta_source/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/_register_block_bindings_post_meta_source/#uses) | Source: [wp-includes/block-bindings/post-meta.php:59](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/block-bindings/post-meta.php#L59-L68) * function[_block_bindings_pattern_overrides_get_value()](https://developer.wordpress.org/reference/functions/_block_bindings_pattern_overrides_get_value/) * Gets value for the Pattern Overrides source. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_block_bindings_pattern_overrides_get_value/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/_block_bindings_pattern_overrides_get_value/#uses) | Source: [wp-includes/block-bindings/pattern-overrides.php:22](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/block-bindings/pattern-overrides.php#L22-L28) * function[_register_block_bindings_pattern_overrides_source()](https://developer.wordpress.org/reference/functions/_register_block_bindings_pattern_overrides_source/) * Registers Pattern Overrides source in the Block Bindings registry. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_register_block_bindings_pattern_overrides_source/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/_register_block_bindings_pattern_overrides_source/#uses) | Source: [wp-includes/block-bindings/pattern-overrides.php:36](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/block-bindings/pattern-overrides.php#L36-L45) * function[_block_bindings_post_meta_get_value()](https://developer.wordpress.org/reference/functions/_block_bindings_post_meta_get_value/) * Gets value for Post Meta source. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_block_bindings_post_meta_get_value/#used-by) | Uses [7 functions](https://developer.wordpress.org/reference/functions/_block_bindings_post_meta_get_value/#uses) | Source: [wp-includes/block-bindings/post-meta.php:21](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/block-bindings/post-meta.php#L21-L51) * method[WP_Block_Type::get_variations()](https://developer.wordpress.org/reference/classes/wp_block_type/get_variations/) * Get block variations. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_block_type/get_variations/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/classes/wp_block_type/get_variations/#uses) | Source: [wp-includes/class-wp-block-type.php:600](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-type.php#L600-L617) * hook[get_block_type_variations](https://developer.wordpress.org/reference/hooks/get_block_type_variations/) * Filters the registered variations for a block type. * Used by [1 function](https://developer.wordpress.org/reference/hooks/get_block_type_variations/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/get_block_type_variations/#uses) | Source: [wp-includes/class-wp-block-type.php:616](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-type.php#L616-L616) * method[WP_Block_Type::get_uses_context()](https://developer.wordpress.org/reference/classes/wp_block_type/get_uses_context/) * Get block uses context. * Used by [1 function](https://developer.wordpress.org/reference/classes/wp_block_type/get_uses_context/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/classes/wp_block_type/get_uses_context/#uses) | Source: [wp-includes/class-wp-block-type.php:626](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-type.php#L626-L636) * hook[get_block_type_uses_context](https://developer.wordpress.org/reference/hooks/get_block_type_uses_context/) * Filters the registered uses context for a block type. * Used by [1 function](https://developer.wordpress.org/reference/hooks/get_block_type_uses_context/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/get_block_type_uses_context/#uses) | Source: [wp-includes/class-wp-block-type.php:635](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/class-wp-block-type.php#L635-L635) * function[wp_get_avif_info()](https://developer.wordpress.org/reference/functions/wp_get_avif_info/) * Extracts meta information about an AVIF file: width, height, bit depth, and number of channels. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_get_avif_info/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_get_avif_info/#uses) | Source: [wp-includes/media.php:5860](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/media.php#L5860-L5885) * hook[translation_file_format](https://developer.wordpress.org/reference/hooks/translation_file_format/) * Filters the preferred file format for translation files. * Used by [1 function](https://developer.wordpress.org/reference/hooks/translation_file_format/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/translation_file_format/#uses) | Source: [wp-includes/l10n.php:816](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/l10n.php#L816-L816) 1 [2](https://developer.wordpress.org/reference/since/6.5.0/page/2/?output_format=md) [3](https://developer.wordpress.org/reference/since/6.5.0/page/3/?output_format=md)… 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