[mgpai]

Can't we use scripts to do it?

Restart and update JD before reconnect (using "Before a Reconnect" as trigger):

// Check if updates are availiable
if (callAPI("update", "isUpdateAvailable")) {
    // Restart JD and update
    callAPI("update", "restartAndUpdate");
}

Restart and update JD when downloads are not running (using "interval" as trigger)

// Check if updates are availaible when JD is idle
if (callAPI("update", "isUpdateAvailable") && isDownloadControllerIdle()) {
    // Restart JD and Update
    callAPI("update", "restartAndUpdate")
}