How to remove update notifications for all users except admin

In WordPress we can remove update notifications from all users except specific roles, by username or by user ID. Below you can find a few examples that you can insert into your functions.php file.

By role

add_action('admin_head', function() {
    if(!current_user_can('manage_options')){
        remove_action( 'admin_notices', 'update_nag',      3  );
        remove_action( 'admin_notices', 'maintenance_nag', 10 );
    }
});
Code language: JavaScript (javascript)

By username

global $user_login;
get_currentuserinfo();
if ($user_login !== "joe") { // change joe to the username that gets the updates
    add_action( 'init', create_function( '$a', "remove_action( 'init', 'wp_version_check' );" ), 2 );
    add_filter( 'pre_option_update_core', create_function( '$a', "return null;" ) );
}
Code language: PHP (php)

By user ID

global $user_ID;
get_currentuserinfo();
if ($user_ID !== 1) { // change 1 to the id number that gets the updates
    add_action( 'init', create_function( '$a', "remove_action( 'init', 'wp_version_check' );" ), 2 );
    add_filter( 'pre_option_update_core', create_function( '$a', "return null;" ) );
}
Code language: PHP (php)