updated 08:45 pm EDT, Mon June 6, 2011
Devices using iOS 5 cannot be reverted back
As part of a slew of new developer software to accompany today's introduction of iOS 5, Apple has issued a warning that once installed, devices running the iOS 5 beta can only be upgraded to later betas and the final version, and cannot be downgraded back to earlier versions, according to a report from AppleInsider. The company has also issued a beta for iTunes 10.5, expected to accompany the release of Lion, a new developer preview of XCode 4.2, and Apple TV 2 software, which will improve Airplay support with iPad 2s.
A note accompanying the release of the beta seed for iOS 5 warns developers to install it only on devices used strictly for development purposes, as the install changes the baseband and firmware, making it impossible to revert to any previous version.
Apple also released developer previews for XCode 4.2 (with different build numbers for Snow Leopard or Lion), a beta for iTunes 10.5 (used to activate iOS 5 on development devices), and a beta for Apple TV software that allows mirroring all content from an iPad 2 to an Apple TV device using Airplay. All are available via Apple's Developer Center. [via AppleInsider]