The improvements to the 4D clouds may not be obvious unless you were in the habit of abusing them like I do and have one of the systems that had "issues" with them. Depending on the settings, I would get goofy renders. Those things no longer happen. No earth shattering improvements - they simply work better now. I know Eovia is very aware that many, including me, would like improvements to the 4D clouds. There were just more people interested in some of the other things that are coming out in C4 - and they're good things! So, I'm back to my usual complaint, "Why can't I have everything and why can't I have it right now!"