I have been using PD 13 with no problem. I just updated my Mac OS from Sierra to Mojave so am thinking I will update PD. I do not want to go to PD 16 so have not used simple "Update" button since I see no way to control update version. I am currently using a Trial version of 15.5. Don't use facebook or twitter - how do I learn how to buy a 15.5 license (key)? Thanks in advance for any time spent helping me. Ray Wiley aka WilyRay
Hello, we stop seliing previous version of Parallels Desktop after the newest version release. So we've stopped sell Parallels Desktop 15 after the Parallels Desktop 16 release. You can check an purchase it from official Parallels resellers (on Amazon for example)
