Upgrade from EDU Dorico 4 Pro to Non-EDU

Hi! I have the following question: If I get Dorico 4 Pro at EDU price. How do I convert it to a Non-EDU license in the future? Do I just purchase an update to, let’s say 4.5 or 5 Pro, as if my current license for Dorico 4 Pro was Non-EDU?
My second question is: let’s say I have the license for Dorico 4 Pro EDU and a commercial project comes up, but version 4.5 has not come out yet. Can I convert it to a Non-EDU license by purchasing an “Update from 3.5 to 4” (£85)?

Thanks in advance.

Only initial purchases have EDU versions available. As soon as you purchase an upgrade you get a full commercial license.