This version changes all resistors and caps to 0805 to save space and make room for other things.
Got rid of DFU switch because using signal diodes removes the need for it.
Vertical USB connector for uploading code without the need for an external FTDI cable/adapter.
FTDI cable/adapter is still an option.
Changed to a high temp CAN transceiver, with the future ability for sleep (power savings).
Added 10-pin connector for "future use" ;)