The move made by the Cupertino-based tech company means that iOS device users can no longer downgrade from iOS 12 back to iOS 11.
This doesn’t impact the jailbreak community much, as the latest public jailbreak only encompasses iOS 11.3.1. Nevertheless, anyone who isn’t happy with the iOS 12 experience will now be forced to hold their peace, as there’s no way to back to iOS 11.
Apple routinely pulls this stunt following a certain number of iOS updates to prevent downgrades. The primary reason is to force iPhone and iPad users to upgrade to newer versions of iOS, as they often contain the latest bug fixes and security vulnerability patches.
Many jailbreak tools depend on these so-called security vulnerabilities, which is why jailbreakers are generally advised not to update to a newer firmware unless a public jailbreak is already available for it.
As always, you can track which versions of iOS are being signed for your device from the ever-so-useful IPSW.me website. You can also download relevant firmware files from the downloads page on iDownloadBlog.
Which version of iOS are you currently running? Let us know in the comments section below.