UPDATE: It all went fine, with only a short unavailability of services.
We will have a planned outage of our web services this Wednesday, 2012/08/15, for system maintenance. The outage will affect most of our online services, homepage, news, bugzilla, demos (including lib downloads), manual, community (excluding contrib downloads). SDK and contrib downloads, which are hosted on Sourceforge, are not affected.
We don’t have exact times, but the outage will probably commence between 10-12 AM UTC+2 and last for 2-4 hours.