QuarkXPress customers using any version of QuarkXPress can upgrade to QuarkXPress 9 for US$299.
From now until Dec. 31, 2011, all current and prior users on QuarkXPress versions 3 through 6 can upgrade to the newest version of QuarkXPress for the standard upgrade price, which is typically applied to upgrades from versions 7 and 8.
To take advantage of the special offer, users must have a valid, registered, and activated serial number for any version of QuarkXPress. Upgrades can be purchased through Quark Authorized Resellers, the Quark Store, and Quark Customer Service. Visit http://www.quark.com/promotion to upgrade and for further information.