Yes that's correct

@IanQ So we would use your firmware verson to read the chart. Here is a link to the full chart https://community.tp-link.com/en/home/forum/topic/631936 Using the "Specific Firmware Versions" column...

@SayeemAhmed Are you asking when there will be new firmware? Or what platform is the X50 HW 1.30 is on? As for firmware I have no idea when they will release new firmware for the X50 HW 1.30 as I do...

@fkopmazkaya Since I don't work for tp-link I cant send it over to the R & D section but david or kevin will be able to once they see this. If you find any more info please keep posting it here

@David-TP

@sll55 Yes it should work with both of them connected via Ethernet cables we call this Ethernet back haul you can read more about it here https://community.tp-link.com/en/home/forum/topic/98898