"QuakeCon 2010 is nearly upon us, and as we have in past years we'd like to put out a large update prior to the event. Rather than releasing an update the week of QuakeCon we will be going offline tomorrow morning. This update will bring significant changes to QUAKE LIVE and its infrastructure. Many of these changes will require considerable downtime, potentially up to 24 hours.

Keep your eye on for the latest information throughout the update process."