I have it up and running on version E7B85AMS.17M. MSI say that they have a release version planned on their forums but no timescale.
They must be planning on releasing it in the coming weeks because there will be thousands of people upgrading to 3rd gen on X470, B450 etc.
The only issue I am having is with the BIOS and saving CPU voltage settings. It just gets stuck and I have to clear the CMOS everytime I change CPU settings.
I will hope for the best but if they don't have a full release in a timely manner, then I will just buy an X570 when I can.