sorry, DS is in a perpetual beta state. there has never been a finished version, with possibly 2 or 3 service packs to iron out a few bugs,then a full new version every couple of years.

you don't see numerous updates throughout the year for other 3D apps, there may be a point release or a service pack or 2, but not rejigged versions that means you have to re-download the entire app.

personally, i don't think that DAZ3D have ANY programmers capable of coding a service pack that can be installed into the core app.