I would say that the product is the same but with a few improvements.
The serial port is still there but style is changed from RS232 to RJ45 style, also in the previous revision there were no RAM slots, voltage monitor is replaced to PSU state (if the state is “fail”, PSU is unplugged from power, it is dead or not enough power), SFP+ part it the same as in the previous version and MicroUSB replaced to full-size USB port.
In terms of feedback for your team: the ability to monitor DC voltage remotely is a HUGE selling point for me. I’m disappointed to see that it’s been removed from this hardware rev. I remove the power supplies from these RouterBoards and use DC from a battery bank. I’ll have to outfit a cheapo hAP RouterBoard now in order to get DC voltage monitoring. That is not a big deal in terms of cost, but I’m giving up a few more watts and increasing complexity.