Quick Start from iOS 15 Beta to iOS 14 Phone

Hello I am going to be getting a new iPhone that is on iOS 14 while my current phone is on the iOS 15 Betas. When I get the new phone will I have to download the iOS 15 Beta or will Quick Start automatically update it to iOS 15 betas?

Quick Start from iOS 15 Beta to iOS 14 Phone
 
 
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