Resolved
The problem is now fully resolved.
Update
We believe the problems have been resolved for several minutes but will continue to monitor closely to ensure things are stable before we close this issue. Thanks for your patience.
Update
We are seeing elevated error rates for requests to Heroku apps now as well. We continue to troubleshoot the problem and will provide updates as more information becomes available.
Issue
Deployment of new application code and unidling of existing applications is currently unavailable. We are working to resolve the problem as quickly as possible.