Not sure where to put this but is there a way we can try out avo 4 along side avo 3. Maybe keep the avo 4 resources and controllers etc namespaced for avo 4 to not make conflicts?

most probable not
running them side-by-side would require many changes internally. like big ones

I'm not sure it's worth building that in order for a few hours/days/weeks of experimentation

maybe it make sense for the beta which will have things that look broken, but not worth it in the long run

trust me. the update should be pretty smooth