unless you find a article or a person with real information declaring that version 1.0 is the worst thing to happen to mankind and it will destroy yor pc and your life probably, the difference is that simple
unless you find a version 2.0, there, you will find hardware revisions, usb3 ports added where previously weren't any, more pci express slots, different controller for network, sound card, that sort of stuff, smaller improvements just mean a new bios with a patch for a new cpu, or a fix for the same cpus it used to handle