As expected, Quark Software has shipped QuarkXPress 2015. In version 2015 users will find fast 64-bit architecture, industry-verified PDF/X-4 output, fixed layout interactive (app-like) eBook production as well as an array of the most user-requested features. The software continues to be a perpetual license. QuarkXPress now offers dual activation, meaning it can be installed on up to two machines and across Mac and Windows platforms. QuarkXPress 2015 retails for $849, and discounted upgrades are available from versions of QuarkXPress back to version 3.