Our deployment system encounter some slow down. Some application may take longer than usual to deploy. We are working on it
EDIT 19:25 UTC: Those slow downs might require an infrastructure change that will be done next week. Until then, slow downs should be less frequent and less important
EDIT 2017-12-08: 12:00 UTC: Deployments take less time after some fixes on our end. The migration will still happen to entirely fix it. Incident is considered as closed because we don't see any more extra times.