We are planning to upgrade our Commons wiki to Confluence 5.5.6 (from 5.4.3) the evening of Wednesday, September 24, 2014. The outage window will start at 6pm and end at 9pm.
In addition to bug fixes, the new version of Confluence has a more robust task manager. This and other changes are highlighted in their announcement here
. Commons hosts a number of Division Web sites (IT, Facilities, HR, Nuclear Sciences, Physics), along with many department and project spaces.