Hide WordPress updates from everyone apart from admin
## Hide WP updates from all users, except 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 );