IOS 14.8.1 build 18H107

iOS 14.8.1 build 18H107 is the official RTM build of iOS 14.8.1, which was released to the public on 26 October 2021. Only users who chose not to upgrade to iOS 15 received this update. Strangely, an IPSW for this build was never released.

This build contains several security patches that will prevent arbitrary code execution.