No major issues on my side - all seems to be working quite well. Did have a piston about an hour late last night but that’s cloud stuff not hub.
I have had one thing that I can’t confirm if it’s only been on 17 as I think it may have happened on last 16 update I was on. After a hub update my Aeon home energy meter stops talking to the hub. I have to unplug the Aeon and plug it back in and its fine.
I will say the app alerted me this evening saying the device was unresponsive so I really enjoyed that as I didn’t even notice.