https://wccftech.com/apple-seed-new-developer-beta-of-ios-13-1-designed-for-the-iphone-11-iphone-11-pro-and-pro-max/

Apple has released a new iOS 13.1 beta which is designed for the iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max. The new beta build can be installed on your iPhone 11 devices using the over-the-air mechanism or through a profile that is installed from the Apple Developer Center. Let’s dive in to see some more details on what the new build has to offer.

With iOS 13.1 beta for the iPhone 11, iPhone 11 Pro and iPhone 11 Pro Max, the new models will be able to be updated to the upcoming build on September 24, allowing beta testers who have already updated to iOS 13.1 beta to use iCloud backup. This is implemented due to the fact that the iPhone backup conducted running iOS 13.1 beta cannot transfer to an iPhone running iOS 13. This means that developers who have upgraded will also have to upgrade their 2019 models of the iPhone if they wish to restore from a backup.