I'm not sure if I'm dreaming or not, but it looks to me like 573 has much better graphics. I had this impression the first time I tried it, at Mores. I thought I wasn't very objective, and forgot about it. Today I tried another (non-ISI) track that I know very well, and I had the same impression of much better graphics (more realistic, I don't know how to put it), though this track had ghost trees (Transparent AA = 0 is only in my stable .ini, not in the unstable one). Did you guys do anything?
Maybe I'm just imagining but I think there has been some improvements to the automatic hdr. About the Transparency AA, it doesn't work for me. Feels3's tracks still has the transparent trees. BUT other tracks looks absolutely beautiful. I always have it disabled but now I really noticed the difference. Trees looks much better.
They were working on some things. Nothing in the notes, but that doesn't mean nothing changed. I'll try to find out.
