The virtualization market has crowned Parallels Desktop as the award-winning solution to run Windows on Mac. Most versions are available on the developer portal:.macOS Server: (With this link you can purchase it).10.3, Panther: (Only with an Apple Developer account).10.5, Leopard: Beta builds available at (Only with an Apple Developer account).10.6, Snow Leopard: (Only with an Apple Developer account).10.7, Lion: (With this link you can purchase it).10.8, Mountain Lion: (With this link you can purchase it).10.9, Mavericks: Beta builds available at (Only with an Apple Developer account).Note: Apple often changes the availability of OS X and macOS, so we will keep this list as up to date as we can with the help of Apple communities.

Thanks to Krypted, we have a list of older versions of macOS and Mac OS X to download directly from the Mac App Store. However, Apple doesn’t make it easy for a basic user to access older macOS or OS X® operating systems. The Parallels Desktop Installation Assistant makes it easy for macOS users to create a macOS virtual machine even after upgrading to Catalina-so users can still run 32-bit Mac applications on their current Mac. Mac users will be able to continue to run 32-bit applications or programs-even if they are using macOS Catalina-with the help of Parallels Desktop® for Mac. Apple claims Mac users will not have support for 32-bit applications or programs on macOS Catalina.

High sierra to catalina