Last week, Tihmstar revealed found a useful exploit in iOS 11 that could have possibly allowed for an iOS 11.2.6 – iOS 11.4.1 jailbreak for iOS devices featuring a headphone jack. After doing the hard work of getting tfp0, Tihmstar has decided against releasing the standalone exploit since it would interfere with projects that other developers are working on.

On the bright side, Tihmstar is promising to release something cool. It is unclear what this “something cool” the developer is talking about here but if you have an iPhone or iPad running iOS 11 and featuring a headphone jack, you will be able to use it. He also says that if your device is not jailbroken, you can keep it that way. Similarly, if you have already jailbroken your iPhone then that’s fine as well.

i finished the exploit enough to be useful for my purpose, which is porting the KPP bypass to iOS 11(.2.6 and up).
However i unfortunatelly can't release the exploit standalone (as planned originally) just yet, since that would interfere with other peoples projects 🙁

— tihmstar (@tihmstar) January 12, 2019

But keep you headphone jacks and lightning adapters excited and stay on iOS 11!
If you're not jailbroken, stay unjailbroken. If you area jailbroken already, that's fine aswell.
There is something cool coming #etason™ 😉

— tihmstar (@tihmstar) January 12, 2019

Sadly, if you have already updated your iPhone or iPad to iOS 12, you are out of luck. With Apple not signing any iOS 11 firmware anymore, there’s no way to downgrade back to it from iOS 12. Worse, there’s no iOS 12 jailbreak in sight as well despite a few possible exploits being available.

Since there’s no word from tihmstar about when this “something cool” is going to be released, one can only wait with bated breath for its release.