问题
Is there any possibilities for a device token to change after the app is installed and registered for the notification in any kind of scenarios.
Scenarios like:
- App update
- iOS update or in any other random scenario's.
回答1:
Previously in document it was like,
If the user restores backup data to a new device or reinstalls the operating system, the device token changes.
From new documentation here:
https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/ApplePushService.html
Important: To protect user privacy, do not attempt to use a device token to identify a device.
Device tokens can change after updating the operating system, and always change when a device’s data and settings are erased. Whenever the system delivers a device token to an instance of your app, the app must forward it to your provider servers to allow further push notifications to the device.
来源：https://stackoverflow.com/questions/40169404/does-a-ios-push-notification-device-token-change