How Capgo's Capacitor Updater auto-rolls back broken OTA bundles in 10 seconds

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The open-source @capgo/capacitor-updater plugin uses a native handshake mechanism to detect and recover from failed over-the-air JavaScript bundle updates on mobile devices. When a new bundle is deployed, the native layer starts a 10-second timer and waits for the app's JavaScript to call notifyAppReady(), confirming a successful boot. If the call is never made — due to a crash or hang — the timer expires and the plugin automatically restores the last known working bundle without any cloud dashboard intervention. Developers can monitor rollback events via the updateFailed listener and retrieve details of the failed bundle using getFailedUpdate(). Testing is recommended on an isolated channel with a single device before any changes reach the production build.

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