Well, a Mac from Apple may or may not have the latest version installed actually. It will definitely have the latest 10.x release, but perhaps not the latest 10.x.y release on it. It all depends on when they made it and then boxed it up. Heck, even my Build-To-Order MacBook was 1 versions out of date when I got it. And my restore disks were 2 versions out of date when I got it.