Yes, "outdated" doesn't really mean much, it really means "different from what I'm instructed to check" so, if you are SURE you have the current version of the Hawaii installer, then don't worry, you have the most current version, it's just something that might need to be updated on the server.
The issue is, we run several mirrors in parallel for redundancy, they might have gone out of synch for some reason, you might have got the outdated server (the installer checks at random which one to use), and got that message. It will go away soon enough as soon as I've check all the mirrors.