Apple halts iOS 13.6 code signing following iOS 13.6.1 release

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Apple on Wednesday stopped signing code for iOS 13.6, effectively preventing users who updated to the latest iOS 13.6.1 release from downgrading.

Issued last week, iOS 13.6.1 includes a handful of bug fixes including a patch for a thermal management issue that would in some cases cause an iPhone's screen to display a green tint.

The release also remedied a problem with Exposure Notification alerts and an issue that prevented the deletion of unused system files.

Today's code signing stoppage means users can no longer download the out-of-date iOS 13.6 operating system from Apple's servers. Apple regularly ceases signing of older code to prevent installation of past iOS versions following the release of a new version in a bid to keep users safe from new threats. The practice also ensures devices are running the latest feature-rich software.

Apple on Wednesday seeded the fifth public beta of iOS 14. The next-generation operating system will debut alongside new iPhones this fall, delivering fresh features like home screen widgets, a new App Library, security enhancements, Siri improvements and more.

 
 

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