Apple halts iOS 13.6 code signing following iOS 13.6.1 release

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.

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