Quark is offering European users of International English versions of QuarkXPress 3.x or 4.x £50 off the suggested retail price of the 5.0 upgrade.

Upgrading to version 5.1 costs £278 (from version 4.x) or £520 (from version 3.x). The upgrade must be purchased directly from Quark.

QuarkXPress 5.0 is the latest version of the company's industry-standard desktop and layout application. Though not yet available for Mac OS X, Apple and Quark are believed to be working to bring the solution to Apple's the platform.

New features in version 5.0 include: Layers; Tables; Web-page design tools; enhanced print tools and cross-media features that will publish content in dozens of file formats, including: HTML, PDF, and XML.

The upgrade offer ends October 31. The company will also send purchasers the free QuarkXPress 5.01 update. Customers need a valid serial number, and must quote the key code: S5EA5AXJ2U. Quark will not honour the offer without a key code.

More information is available from Quark.