yeah thats what i heard
新 < 7.7 (I would guess its 7.6 if you buy 5000)
舊 < 8.2 (thats the later MIT shipments at the lowest point, and probabily in quantity between 5000 to 50000)

the earlier shipments are < 10.5 at one point, and later < 9.2 (MIT version i think)