iPhone Can Backup for iOS 9.1 Restore on iOS 9.0

[wlfente]

I have iOS 9.1 public beta on my iPhone 6 Plus. If I do a backup of my device while it's still on iOS 9.1 public beta, then downgrade to iOS 8.4 (setup as a new device), and finally do the OTA upgrade to iOS 9.0 public release today at 10am PST...will I be able to restore my iPhones content & settings from my iOS 9.1 public beta backup to iOS 9.0 public release?

 

[fox1401]

No, you can't.