Customers who purchased and registered a copy of Parallels Desktop 13 for Mac from the Parallels Online Store or an authorized reseller on or after August 1, 2018 through October 31, 2018, are eligible for an upgrade to the next version of Parallels Desktop for Mac at no charge, subject to certain conditions.
Note: If you have a subscription for Parallels Desktop for Mac, Parallels Desktop for Mac Pro Edition, or Parallels Desktop for Mac Business Edition you can upgrade Parallels Desktop to the latest version with the license you own. Download and install Parallels Desktop 14 and use your subscription license for activation. A subscription allows you to upgrade to the latest version at no additional charge as long as your subscription is valid.
Visit the Tech Guarantee 2018 page to learn all the conditions.