From idigitaltimes: iOS 9.2 Beta 4 has been officially seeded to both developers and public beta testers today. If you’re a member of the Apple beta testing program or a member of the Apple Developer Program, you are now able to download and install the iOS 9.2 Beta 4.
How To Download And Install iOS 9.2 Beta 4 Public Or Developer Version
To download and install the iOS 9.2 Beta 4, as long you have already signed up for the Apple beta testing program or you’re a part of the Apple Developer Program, you can download it by navigating to the Settings -> General -> Software Update on your iPhone or iPad.
If you’re not in the Apple beta testing program or the Apple Developer Program, you can learn how to sign up for the Apple beta testing program and download and install the iOS 9.2 Beta 4 via this link.
In the latest beta, Apple has improved the Safari View Controller, which is the version of Safari third-party apps use to access and display web pages, and Arabic support for Siri. Other fixes and updates include minor changes to the dictionary, keyboard and networking.
If you’re considering switching from iOS 9.1 to iOS 9.2 Beta 4, keep in mind that Apple makes it is very difficult to downgrade back to general release versions. You’ll be able to update to the iOS 9.2 general release when it comes out, but it’ll require some finagling to downgrade from iOS 9.2 Beta 4 to iOS 9.1.
If you do not wish to enroll in the Apple Developer Program or the Apple beta testing program but still want to try iOS 9.2 Beta 4, you could try iModZone Downloads (iMZDL). While it’s not recommended you download the iOS 9.2 Beta 4 from iMZDL unless you absolutely know what you are doing due to various reasons, it is possible to obtain a copy of iOS 9.2 Beta 4 from iMZDL here.
Back up your iPhone 6s and iPad properly to your computer before downloading and installing the iOS 9.2 Beta 4.