The "update" step is a bit of a "draw the rest of the owl" in the case of major version updates like this 8.x -> 9.x release. It also depends how many features you're using in that cluster as to how complicated the owl is to draw.

That said, I just made it out alright in my home lab without too much hullabaloo.

if you are using hardware pass through for e.g. nvidia cards you have to update your VMs as well, but other than that pretty painless in my experience (over 15 years)