Apple’s iOS 26.4 update appears to break a popular JIT workaround for sideloaded apps

Apple’s new iOS 26.4 update is giving a lot of people who sideload apps a serious headache. If you rely on StikDebug to enable JIT for emulators or other apps outside the official App Store, you might want to skip this one for now and stick with an older version.

A post in the r/EmulationOniOS subreddit picked up steady upvotes with users urging everyone to hold off. 

On X, Tech enthusiasts, Aman, also posted telling followers to downgrade to iOS 26.3 or 26.3.1 while they still could. He shared a Discord note from XeniOS developer Reality that had the details.

There is no known way to get JIT running offline on 26.4 anymore. The old airplane mode trick that let people bypass the need for Wi-Fi is simply gone.

StikDebug has become a go-to tool for on-device debugging and enabling JIT on iOS 17.4 and newer. Most of the community guides for running emulators and sideloaded games rely on it to keep everything working smoothly. Now, plenty of those setups appear broken on the new update.

Not every report lines up perfectly, though. In the same Reddit thread, one person said both StikDebug and MeloNX ran without issues on 26.4, and that offline mode still worked after some extra testing. Others were not so lucky. One user on an iPhone 16 Pro Max wrote that StikDebug stopped functioning entirely right after the update. So it’s unclear what’s working and what’s broken at the moment.

While it’s not exactly surprising for Apple to patch this with iOS 26.4, the update also has another controversial feature. Users in the UK are now being asked to verify their age after installing the update. We covered all the details here.

On a lighter note, iOS 26.4 also has some visible improvements. It adds fresh emoji, makes some changes to Apple Music, and even improves the keyboard (at least according to Apple). For more details, you can watch this video:

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