So Windows Blue is actually Windows 6.3. Windows 7 was Windows 6.1. Windows Phone 8 is version 8.0. This is all just so perfectly Microsoft. As if the consumer branding wasn’t bad enough, the internal numerical scheme is a clusterfuck as well.
whatever MG, Windows Blue runs on NT kernel 6.3; OS X 10.8 runs on Darwin 12; neither of these numbering schemes is a “clusterfuck”, it’s just the way software layers work.