Enable updates to the new version at a rate of 25% (meaning 25% of update requests will be offered the new version) The Balrog Agent will be a new component of the system that can be configured to enact changes to update rules at specific times or when certain conditions are met. Because this is the first time we'll have an automated system making changes to update rules at unpredictible times, another concern that came up was making sure that humans are not surprised when it happens.