Apple ceases iOS 10.2 code signing following iOS 10.2.1 release
After the successful release of iOS 10.2.1 last week, Apple on Monday stopped signing code for iOS 10.2, prohibiting users from downgrading to the older operating system.
Apple commonly stops signing for old iOS and macOS versions when a new iteration is released, a practice designed to shield users from bugs or security vulnerabilities that were patched in more recent software revisions. Beyond consumer protection, invalidating old code helps the company maintain a consistent user experience across its device ecosystem.
Apple released iOS 10.2.1 last week with a handful of minor bug fixes and performance improvements.
The last major point update, iOS 10.2, introduced users to redesigned emoji characters and Apple's new "TV" app in December. TV, which is available on iOS and tvOS, serves as a smart repository for over-the-top video content by aggregating TV shows, movies and other media originating from select standalone streaming apps.