Surf Soho Mk3 Features question

I haven’t seen any mention of new firmware features, just hardware, so I’m curious if the new generation will have similar ipv6 support compared to other pepwave products.

Surf Soho MK3 only improved the hardware capacity. New features will be added in the new firmware release on v6.4.0.

Is there a listing someplace of the hardware differences between the MK2 & MK3? I know the MK3 will support simultaneous 2.4GHz & 5GHz SSID’s, but is there a list of other hardware differences? (e.g. RAM/ROM, CPU, etc.)