With no obligation from the manufacturer to inform you of changes, and even if one exists in law, whaddya tonna do about it? We're doing the take it or leave it approach.
Whenever I come across a thing that contains a "terms of service" or "license agreement", I refuse to read it and make the assumption it says the following things:
> you own nothing
> the company owns everything
> you have no rights
> you promise not to try and exercise any right you think you have
> just in case you ever get it in your silly little head that you do have any rights whatsoever, you agree to binding arbitration with the firm we pay
> you cannot do anything the company doesn't like
> the company can do literally anything it wants whether you like it or not
> the company is not responsible for anything ever
> the company makes absolutely no guarantees about anything
> but you agree to indemnify us in all possible circumstances