Even the 68k version of 3.9 causes all kinds of issues on a real Amiga. I have a CSPPC/060 and it didnt run correctly. Cost me hours of attempting to get it stable with the only result in a new install of OS3.9 and putting back MUI 3.8 again.
I dont think this is intended for real Amiga machines. Its more geared at Amikit and UAE systems. Sadly WinUAE has caught up and in just about all cases now is faster than the real thing with better resources.
@Iggy
thanks

@Thread
I would say it this way... for MorphOS optical improvements make a lot of sense because you have enough resources and the desktop is based on it. On AmigaOS it is not used for that but propably they have the motivation to compete with MorphOS. For 68k it is (besides for someone using Scalos) only a GUI toolkit for applications, considering the problems it causes (how many people have already reported) and that there is no application needing it, it makes not that much sense. On slower hardware the high requirements are another problem. And even when you would have faster hardware (Vampire 2) why artifically slowing it down without real benefits. My personal view on that.