Just because SU 10.04 was released does not mean that development has stopped, nor that you need to wait another 6 months for the next version.
Install 10.04 and immediately it starts to update itself. The analogy is more akin to installing Windows except that after a (currently undetermined time) we'll update the zip file with a new version number and issue another patch to update the 10.04 version number, ensuring that every shop is bug free, up to date and secure.
It's like getting Windows 7 and a free set of updates and then one day it's windows version 8.