I think this may be the 2nd time you are asking about configuration questions within the scope of BIG-IP software upgrades. I have 2 more suggestions for you:
- If you have a few lab VE licenses, you can export and import the UCS file and step through the upgrades in a test environment. Going through this process is good practice and you can weed out any config migration issues.
- Testing! If you have app testers lined up, then just perform the upgrade and understand that you can always revert by rebooting into the previous volume containing the old software and config. Testing fails? Take UCS backups, and QKViews to later determine root cause, and reboot back into old volume.
Just some additional thoughts 😉