Server uac.ac will be not accessable for few hours.
This has to be done to guarantee the up-time and service you expect from us.
We anticipate that this work will take no more than 3 hours to complete, and will commence at 07:00AM (UTC + 1).
[UPDATE]
The maintenance had ended around 10:30 CEST . We had updated several server components and teweaked few settings.
Our initial tests show 25% improvement in server speed which is great !