You have all of the old hardware in your system, and you create a software using the same name, but added a plus sign to the end of it, and yet you do not support the hardware that works with said older hardware. Next time your company releases something, make a generic plugin in it for the old hardware, and update it with specific plugins later on. it wouldn't be hard to add a "Learn Button" feature for people to press the button for your software to capture its information so it could be rebound.