IOS 12.5.6 build 16H71

iOS 12.5.6 build 16H71 is the official RTM build of iOS 12.5.6, which was released to the public on 31 August 2022. This update is only available for devices that aren’t capable of running iOS 13 or newer.

Similar to iOS 15.6.1, this build patches kernel and WebKit security vulnerabilities that could lead to arbitrary code execution.