I've just downloaded the trial to see what's changed and how the non-destructive raw workflow has been implemented.
It works, just, but don't expect anything like other packages LR,CO,DXO etc.
Once you've found, loaded and adjusted your raw, you need to render it to a raster image before you can save the settings to return to.
Although I've posted this in 'Other RAW Convertors' it really should be regarded as a pixel editor with RAW support.
The integrated workflow with Publisher is a great idea, but the whole suite really needs a DAM for the concept to really pull together.
It's also crashed several times in the first hour of trial, so be careful if you want to do serious work.