There will be a 1 hour 30 minute outage of Confluence and JIRA on Thursday June 17, 2010 from 7:45 PM - 9:15 PM PDT. The MySQL version is being upgraded and all servers supporting Confluence and JIRA are being rebooted to pick up a new Linux kernel which addresses security vulnerabilities.
This outage had previously been scheduled for tonight but was postponed when UNIX-Admin announced that a second round of security fixes had been released Tuesday June 15.