Almost 1.5 Years Since Last Apple TV Release?

When the new version hit my iPhone I was horrified and immediately locked down all our ATV devices to keep them on the old version. However, I know from long experience that this technique has a limited lifetime and eventually one or more pieces will stop functioning correctly or at all. I wrote a comment on another thread that says all I have to say about the new “experience” but I know better than to try and fight the inevitable future, it’s coming. I’d just like it to be fully functional before I participate…