Considering all of the new tools being built into Swift3D V4, the time we'll all save in development and the fact that Erain is providing V4 as a FREE download is very... thought provoking. Looking forward to using V4. Thank you Erain for going the extra mile in fine tunig the software!!!
Since you are talking about getting Swift3D for free, I'm assuming you recently purchased v3. If not, then an upgrade price (or full version price) applies.