Or rather, if you talk about professional settings, the best rollout model : first rollout changes on the home version, fix the bugs and quirks, then rollout the changes to pro version, fix the last bugs, then rollout the fixed changes to enterprise clients.
There are too many subtle bugs in Windows which seem to never seen the light of testing: mouse double clicks for single clicks, sending the close message to 2 overlapping windows, USB agressive power management, and so on and so forth.
Or rather, if you talk about professional settings, the best rollout model : first rollout changes on the home version, fix the bugs and quirks, then rollout the changes to pro version, fix the last bugs, then rollout the fixed changes to enterprise clients.