I haven't seen anything adverse out of this firmware yet but then again the router is a node so I don't really interact with it anymore. It primarily handles appliances at the other end of the house and my robot vacuums when they go down there and I haven't received any connectivity warnings...
I've been noticing that my wifi 7 devices are showing up as hard wired in the client list.
Edit: Only 2.4ghz shows up as wireless everything else shows as hard wired even though its on wifi.