iPhone Restoring from 9.1 Beta

[Cayden]

My current iPhone 6 is running the iOS 9.1 PB and I plan on restoring my 6s from a backup of my 6. My question is if I'll have to download the public beta into the 6s, update to 9.1 PB and then restore from back up, or if I'll just be able to restore from back up and it will au

 

[iBook G4 FTW]

Also curious about this, it be a shame to have to downgrade and backup everything. :/

 

[RetiredInFl]

I was NOT able to do a 9.1 PB downgrade to 9.0 release software and restore from a backup. Message was something like "the software you are restoring TO is too old." Couldn't use any backups, had to start from scratch ib fact in order to even load 9.0 I had to do it from the mode where the "INSERT USB" message was on the screen (DFU?)?

 

[iBook G4 FTW]

Well ****, I hope I can restore from my 9.1 iCloud backup when my 6S Plus arrives :S