Title: 3.0.1 | Developer.WordPress.org

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# New and updated in 3.0.1

Functions

Hooks

Classes

Methods

 * hook[nav_menu_item_id](https://developer.wordpress.org/reference/hooks/nav_menu_item_id/)
 * Filters the ID attribute applied to a menu item’s list item element.
 * Used by [1 function](https://developer.wordpress.org/reference/hooks/nav_menu_item_id/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/hooks/nav_menu_item_id/#uses)
   | Source: [wp-includes/class-walker-nav-menu.php:207](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-walker-nav-menu.php#L207-L207)
 * function[_nav_menu_item_id_use_once()](https://developer.wordpress.org/reference/functions/_nav_menu_item_id_use_once/)
 * Prevents a menu item ID from being used more than once.
 * Used by [0 functions](https://developer.wordpress.org/reference/functions/_nav_menu_item_id_use_once/#used-by)
   | Uses [0 functions](https://developer.wordpress.org/reference/functions/_nav_menu_item_id_use_once/#uses)
   | Source: [wp-includes/nav-menu-template.php:634](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/nav-menu-template.php#L634-L644)