Comment 5 for bug 464733

desktopcouch also needs to be restarted on a package upgrade, and we have the same issue (a system-level install restarting user processes), so using the same method would seem ideal. Don't block this bug on desktopcouch implementation, but do please assign to desktopcouch when complete so that we can tie into the signal or add our processes to those that are HUPped or whatever is used to make the processes restart.