BOTTOM LINE is that Microsoft BROKE this for you, not Symantec. MS broke their "word" - originally stating September. Once again they (MS) made unexpected changes or changes sooner than expected and 3rd party vendors must scramble to keep up.
IMO, Symantec is doing the best they can and is blameless in this one.
It's something that has, however, become HABIT for Microsoft, IMO.
Even "RCs" change before the CDs actually get burned in my experience. Just because they say "this is it, RTM, final code" does NOT mean that's what you get to install on your computer. I've tested enough things to know - "never believe what MS promises or say - as not all their employees follow directions"
Luckily, we have skipped Vista here, totally hate it, so only see the issue on a couple of IT machines, and we don't care.......
No more MR, then what does RU stand for? Normally when I see RU in a string, it stands for the Russian version, for example, a URL with RU means Russian, or Russian language.
Does this mean the PROGRAMMING AND DEVELOPMENT of SEP is being moved to Russia like Cisco does much of their development in Israel? ;-)