Title: 4.9.2 | Developer.WordPress.org

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# New and updated in 4.9.2

Functions

Hooks

Classes

Methods

 * function[wp_map_sidebars_widgets()](https://developer.wordpress.org/reference/functions/wp_map_sidebars_widgets/)
 * Compares a list of sidebars with their widgets against an allowed list.
 * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_map_sidebars_widgets/#used-by)
   | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_map_sidebars_widgets/#uses)
   | Source: [wp-includes/widgets.php:1393](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/widgets.php#L1393-L1564)
 * function[term_description()](https://developer.wordpress.org/reference/functions/term_description/)
 * Retrieves term description.
 * Used by [3 functions](https://developer.wordpress.org/reference/functions/term_description/#used-by)
   | Uses [6 functions](https://developer.wordpress.org/reference/functions/term_description/#uses)
   | Source: [wp-includes/category-template.php:1265](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/category-template.php#L1265-L1276)
 * function[wp_get_mime_types()](https://developer.wordpress.org/reference/functions/wp_get_mime_types/)
 * Retrieves the list of mime types and file extensions.
 * Used by [11 functions](https://developer.wordpress.org/reference/functions/wp_get_mime_types/#used-by)
   | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_get_mime_types/#uses)
   | Source: [wp-includes/functions.php:3447](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/functions.php#L3447-L3574)