Bloquear updates para todos menos admin

function hide_update_notice_to_all_but_admin_users()
{
if (!current_user_can(‘update_core’)) {
remove_action( ‘admin_notices’, ‘update_nag’, 3 );
}
}
add_action( ‘admin_head’, ‘hide_update_notice_to_all_but_admin_users’, 1 );