Hi Ryan.
The changes that has been done on the schematic is some pin-allocation changes, where some of the periphiral pins has been reassigned. Notice the "Microcontroller" section.
More specific we moved around with the encoder pins to optimize the interrupt routine for easier and faster reading. By doing this we also freed up the extra available Hardware UART found in the ATMEGA1284 chip which has been exposed at the external female header, SV2.
