On Wednesday 11/23 at 12:15 PM PST for 30 minutes the git repository will be down for maintenance. Only the git repository will be effected, your applications will continue to run.
In order to accomodate a growing number of applications we must upgrade the git service. We will need to take the git service offline for half an hour. This will not disrupt your running applications but the following will be disabled: deploying new applications, deploying updates to existing applications, and adding new servers to your cloud and upgrading a shared app to a dedicated cloud.