.... and, as that country song goes, my dog wakes up from dead, my liver is back to normal, and my truck starts up again! On a more serious note: why not, just to be on the safe side, issue a patch to all OSX users? How does Apple figure out who's 'advanced'? Do they just let people figure it out for themselves?
Actually, the plural is correct in British usage. (I think they know something about English.)And, as to whether it should be 'they' or 'it,' that depends on whether you believe in the notion of personhood of the corporation. According to the U.S. Supreme Court, the corporation has some important personhood rights (e.g., the right to free speech).