Are iOS apps clean when upgrading through the AppStore?

We found a data loss error in the current version of our application, because we do not save data to disk during the wallpaper, but only when called applicationWillTerminate:.

So the question is, after we release the update, will the AppStore completely terminate our application during the update process?

Installing over the current copy with Xcode kills the process, and TestFlight also doesn't seem to do it either.

Is there any documentation on this behavior?

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Source: https://habr.com/ru/post/1676405/


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