I had the same reaction. After all they did between 1 and 2, or 2 and 3, this seems more like a point upgrade. For a hefty jump in price, too. Looks like they have given up on modelling in Carrara native -- going to concentrate on Amapi instead. Which is probably a lot more sensible but that was one of my attractions to Carrara; that it is simple to get around in (and to us old RDS users, familiar as well.) Maybe when the full list of features is posted, we'll see if there's some fixes to the UVmapper (to make it more closely match the rest of the UI and to improve selection within it), the metaballs modeller (ditto), and some of the other fixes and minor enhacements we've talked about here.