So, if you’re on iOS 12.4 and are jailbroken or plan to wait for an available jailbreak, if you’re an A12 chip owner, don’t upgrade to iOS 12.4.1! If you’re not a jailbreak enthusiast we encourage you to update to this latest OS version. Once upgraded to 12.4.1 you won’t be able to downgrade to iOS 12.4, because Apple will surly soon stop signing it (iOS 12.4 is still signed at the time of writing).
iOS 12.4.1. Update Log
There’s no doubt that iOS 12.4.1 has been released to patch the iOS 12.4 Jailbreak exploit. The size of the update is around 100 MB and the Cupertino-based tech giant mentions that this latest roll out brings important security and stability improvements.
Things get even more clear in the security content of the update that reads “A malicious application may be able to execute arbitrary code with system privileges”.
Fact: the iOS 12.4 security vulnerability was a rare slippage by Apple allowing hackers to release a jailbreak for the current iOS version available!
How To Update To iOS 12.4.1
Updating is available over-the-air. You can either wait for the automatic software update or download it manually from the Settings app. All that you have to to is browse for Settings -> General -> Software Update and perform the usual steps. Tap on Download and Install, provide your Passcode, agree with Apple’s terms and be patient until the new software version is deployed and installed on your iPhone or iPad.
Tip: You can check if iOS 12.4 is still signed here.