There will be an outage to reload our core and border routers. This is unavoidable, due to a bug in IOS that is critical for us to patch. We plan to minimize disruption, but would like to stress that you should plan for disruption on service throughout the entire window. The window of downtime should be between 10pm PST and Midnight.
Which is Friday night, which is Saturday morning here in the Same Time Zone As Manitoba. (And, of late, Manitoba has had nicer weather.)