We have an app that registers and runs a NetworkExtension (specifically NEPacketTunnelProvider) on both iOS and macOS. This works fine (although not in the iOS simulator, of course, known limitation). However, when the network extension is running, the App Store on macOS/iOS, and TestFlight on iOS, fail to update the app. It looks like they're waiting for the NetworkExtension to terminate, but not actually asking the VPN to disconnect.
We don't want our users to have to think about killing our VPN (which should stay connected whenever possible), but we don't want them to have to think about updates either - they should happen automatically.
Are we missing something? Is there an event we should be listening on to detect that the store is trying to install an app update? Conditions when we should arrange for the VPN to terminate, safe in the knowledge that it will be restarted again after being updated?
from How to let iOS/macOS update our app while its NetworkExtension is running?
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