Comment 17 for bug 1033226

(But not annoying enough for you to subscribe to the bug report, apparently.:-)

There's one more tricky issue to consider: what if you choose to restart later, but then other updates become available, and you open Software Updater to install those. Probably we'd need to embed a reminder to restart inside the normal updates alert. But we mustn't confuse it with the normal message that some of the not-yet-installed updates will require a restart.