Looks like its a revised rear end (including boost) and ports for Di electrics…
And only 6mths after i bought mine 🙁

Mine is obviously useless now 🙂

http://www.pivotcycles.com/bike/Mach-6-Carbon/

The cable routing on the current one is bad, by putting it under the BB I think they have made it worse, also, why does the Alu model have much better color options.
I’m glad they went for a standard eyelet size though for the rear shock, it was a pain getting the right spec CCDBairCS for my current one.

Also, boost, can you run your existing 142×12 wheel set with spacers?