It currently has 8.01 on it. I can't find a lot of information on why the files aren't recognized, or if they're even necessary once the update gets performed. But it seems like this is the most important part of the update since it's the only way to get it.
Yes, I believe it is necessary to support Lightning cables. uCom is the microcomputer software. I believe that would include low level drivers. However, as I said, I never manually updated my unit. After installing 6.0, I now have uCom v8.12. So I assume that the v6 update loaded it.
I'll let you decide whether that means it is safe to go ahead. Maybe someone else has some experience with this.