Apple on Friday ceased iOS 11.2.6 code signing following the release of iOS 11.3 last week, meaning users are now unable to revert back to the old operating system despite reports of bugs and other problems with the latest release. Apple's release of iOS 11.3 last Tuesday delivered a slew of enhancements and hotly anticipated new features, including a battery management tool that allows users to monitor iPhone battery health and its impact on processor performance. Unfortunately for a growing number of users, the update appears to be riddled with problems. One day after the release hit Apple's servers, an apparent bug with the company's MDM Software Update feature caused devices running third-party solutions like Jamf Pro to enter a "failed loop" cycle.