Relaunch fast if outdated

Specifies the minimum release age beyond which relaunch notifications are more aggressive. The age is calculated from the time the currently-running version was last served to clients. If a browser relaunch or device restart is needed to finalize a pending update and the current version has been outdated for more than the number of days specified by this setting, the RelaunchNotificationPeriod policy is overridden to 2 hours. If the RelaunchNotification policy is set to 1 ('Required'), users will be forced to relaunch or restart at the end of the period. If not set, or if the release age cannot be determined, the RelaunchNotificationPeriod policy will be used for all updates.