Moved to MWG for better response.
You can upgrade however you like or to whatever you like. This is all outlined in the best practice:
If you want to ensure you go to 126.96.36.199, type:
mwg-switch-repo --sticky 188.8.131.52
Then do the upgrade from the CLI (yum upgrade) or GUI.
I have two appliances, one of those also previously on 184.108.40.206 , I used CLI to upgrade and used 'mwg-switch-repo --sticky 220.127.116.11', upgrade went successful but later on reboot no display on device. I raised service request number is '4-13313593921' and the engineer who attended me advised me to prefer using GUI to perform upgrade. My concern for second appliance which now I am planning to do is that GUI will take me to 18.104.22.168 or it will take me to controlled release, in GUI method how can I specify I want to have 22.214.171.124
I want to clarify this before I attempt upgrade on second appliance.