04-30-2013 01:18 PM
On May 1st the signing authority servers are scheduled to be upgraded. The upgrade is scheduled from 9 PM to 12 AM Eastern time. There will be approximately 30 minutes of downtime during the upgrade.
This upgrade will remove the restriction that prevents an application with the same version from being signed multiple times.
05-01-2013 10:39 PM
The upgrade is complete and signing is back online.