autoUpdater.autoDownload = false;
autoUpdater.on('update-available', () => {
    if(confirm('New version is available, download now?')) {
        autoUpdater.on('update-downloaded', () => {
            if(confirm('New version is downloaded, quit and install now?')) {
                autoUpdater.quitAndInstall();
            }
        });
        autoUpdater.download();
    }
});
autoUpdater.checkForUpdates();