The FAQ says that the educational version of unity pro is good for one activation on one computer.
Does this mean that if I upgrade my computer after installing unity, I will have to purchase another educational license? Or just that my license can only be used on a single computer at a time, and that like the regular pro version, I can return my license within the editor and then activate it on another computer.
It means your license can only be used on a single computer at a time … But if you upgrade or change your computer you can contact Unity and they will migrate you license to the new computer.