Quark says QuarkXPress customers using any version of QuarkXPress can upgrade to QuarkXPress 9 for US$299. The special upgrade offer is now available through Jan. 31.

All current and prior users on QuarkXPress versions 3 through 7 can upgrade to the newest version of QuarkXPress 9 for the standard upgrade price, which is typically applied to upgrades from version 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. Go to http://www.quark.com/promotion to upgrade or for more info.

Customers that are unable to locate their previous QuarkXPress serial number still have the opportunity to upgrade their licenses. In these cases, customers can provide proof of purchase or complete an online “missing serial number” form at http://www.quark.com/promotion .