Hardware
PMU V2 - New case design with CANBUS port. Enhanced BEC functionality, better heat dissipation. Extra CANBUS ports, enhances the expandability of the system and will support Gopro Zenmuse, iOSD and Bluetooth module for assistant software use on smart phones in the future, etc..

NAZA V1 can also be upgraded using PMU V2 and support Gopro Zenmuse, iOSD and Bluetooth module..

Firmware and functions
New attitude stabilization algorithm, provides better flight performance / maneuverability
New flight control performance, provides better flight experience; (flight control is smoother, take‐off is easier)
Support for Octo‐rotor
One‐motor stopped still can land safely (Hexa‐rotor, Octo‐rotor)
Automatic course deviation compensation, reduced the effects of magnetic disturbance interference 
around the compass detection & warning
Added IMU advanced calibration, error identification and warning, reduced the impact of sensor error 
to the flight performance
Features

All-in-one Design