But I briefly installed the RC8 yesterday (windows 10, C4DR21). Unfortunately the tomemapping still seemed a pretty buggy. interactive viewport looked different to render. Values werent always kept in tonemapping or took a long time to preview. some nodes seemed to only be sporadically available or to reset. Sorry I can't be more specific (have gone back a couple of versions). More aof a general thing
PS. LOVE, decals, slicer, cosmos browser etc... PLease try and keep the licencing nice and simple - I worry about the chaos server method causing problems