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One of the latest news on iOS this week is that Apple had stopped signing some versions of the mobile operating system released before iOS 12.4 was fully released. Users affected by this update are now likely wondering if an iOS 12.4 jailbreak is in the works.
iOS jailbreak: What does it mean when Apple stops signing an iOS update?
When someone updates or downgrades the iOS on their device, they are practically installing a new iOS firmware that uses the IPSW file format. But for this to work, it needs to be “signed” by Apple servers. In recent years, Apple has been practicing to stop signing older firmware once the latest version of iOS becomes available to the public.
With the full version of iOS 12.4 finally, out recently, it has been confirmed this week that Apple has stopped signing iOS 12.3, iOS 12.3.1, and iOS 12.3.2. People who do not care much about jailbreaking might not find this interesting, but to those who do this means a great deal.
Since iOS 12.4 has just been released, it means the jailbreaking community still has to wait a while to see a complete version of iOS 12.4 jailbreak go public. So if they got the official version of iOS 12.4, they can no longer downgrade to the said iOS versions and install the corresponding jailbreaks.
iOS 12.4 jailbreak: Is it in the pipeline?
On the bright side, an iOS 12.4 jailbreak might be in the works. Apple might be doing its job of discouraging ordinary users from jailbreaking their iPhones by immediately stop the signing of older iOS versions. However, the company still has not found a way to completely stop developers from finding exploits that aid in jailbreaking beta and full versions of iOS updates.
"apfs" "0day" "apfs" "security" "feature"
— sparkey (@iBSparkes) June 10, 2019
As mentioned, the jailbreaking community has seen some early works done to jailbreak iOS 12.4. When it was still in beta, developer @iBSparkes on Twitter teased the Cydia tool running on an iOS 12-powered iPhone. This confirmed that the developers found exploits that can be used to jailbreak iOS 12.4, but it is still too early to say if a public release is going to happen. Right now, jailbreaking fans will just have to be happy that someone has already proved it is possible.
