If you are using the new DAZ Connect system and the product is encrypted, no. DIM and manual downloads and installations will be okay for the time being. Anything you have already bought and installed is supposed to be okay. When DAZ starts with content that is Connect only, then you cannot use it without signing on through Connect. It's very involved and confusing.

Personally, I'm just staying away from 4.9 like it's the plague. 4.8.0.59 is more than sufficient for my needs and abilities. To get a better picture, read the forum posts over at DAZ.