2014 V1 5010 c (beforenthey did a cheaper carbon one) w/top of the range everything. I demoed it, declared it perfect and ordered one.
So I guess a v2 one, but I’m still loving mine so no immediate rush
Sorry to crush any dreams for those lusting after XTR Di2, bit when I had a quick play for 10 mins, I didn’t like it, feels cheap, the lever throw is far too long before you get a ‘click’ and the motors do their thing. Road di2 is miles better.