Fix Android VPN state after APK upgrade#8845
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Pull request overview
This PR aims to correct VPN state inconsistencies on Android after an APK upgrade by proactively resetting tunnel-related state the first time the VPN is started post-upgrade.
Changes:
- Close any existing TUN file descriptor before establishing a new one to avoid stale descriptors surviving restarts/upgrade recovery.
- Detect APK upgrades via
PackageInfo.lastUpdateTimeand perform a one-time VPN/tunnel reset (stop VPN, stop network monitor, post disconnected) before the first tunnel start after upgrade. - Persist the last-seen APK update timestamp in
SharedPreferencesto ensure the reset runs at most once per upgrade.
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jigar-f
reviewed
Jun 9, 2026
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Resolves https://github.com/getlantern/engineering/issues/3538