应用更新时是否删除了使用 NSUserDefaults 存储的数据？

Question

Currently I'm creating an app that is storing data using NSUserDefaults.

So when I upload v1 of the app to the app store and then make a new update for the app (v2) is the data stored in NSUsedDefaults deleted when the user updates to the new version?

Answer 1

The data stored with NSUserDefaults is not deleted when the user updates the app.

It will only be deleted if the user deletes the app.

Answer 2

likely easy to lose UserDefaults data after updating the app It's happened significantly starting from iOS 15

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