They've just released version 6.5.722.000.
These two issues are reported as fixed (copied from web site):
- Fixed: Removed McAfee installation gate
- Fixed- LastWriteTime not being updated
Don't know about the former (didn't affect me) but the latter bug fix now allows my Eudora 6.0.3 to work properly. I expect other people having time stamp problems will see it fixed now, too.