UCS Configuration Update
On Wednesday, January 21, during the maintenance window (5-7 a.m.), a configuration update will be installed for UCS. Service will be disrupted for approximately five minutes in order for maintenance to be conducted.
No e-mail or information will be lost as a result of the update being installed.
More information: UCS Configuration Update
Story added 7. January 2015, content source with full text you can find at link above.