The Sakai Confluence Wiki , http://confluence.sakaiproject.org , is scheduled for a major upgrade on Tuesday, September 3 at 8 pm Eastern / 5 pm Pacific/ midnight GMT . The upgrade will likely take between 2 - 4 hours during which time the Sakai Confluence Wiki will be completely unavailable.
After the upgrade, please check any pages you manage. It is possible that some formatting will be lost, most likely to happen for pages which use Confluence plug-ins, which may not all be compatible with the new version. If you need assistance, please contact me after the upgrade.