3004.388.9

I have two ASUS routers in AIMESH Mode: 1. RT-AX68U (Running 3004.388.8_4) 2. RT-AX56U (Running 3004.388.8_4) I was alerted that 3004.388.9 is available for my RT-AX68U and was going to update, but I'm worried about instability with the older, now unsupported RT-AX56U. Should I simply stick...