M32 Firmware updating question


I have seen several posts about issueees when updating the M32 firmware. I am not running a digital stage box as of now.  Can I update from 3.02 directly to 4.04.1 or should I be updating sequentially? If I save my setup can I load it from a usb to work after the update or will I have to resetup how my board is layed out manually as the routing menus have seemed to change?