Can you explain why version 15.1.3 EXPLICITLY states that Windows Insider Preview IS supported, but 15.1.4 DOES NOT STATE THAT SUPPORT HAS BEEN REMOVED? Link: https://kb.parallels.com/124724 Version 15.1.4 (47270) This update for Parallels Desktop 15 for Mac 15.1.4 (47270) addresses overall stability and security issues, and includes the following fixes and improvements: Adds support for Ubuntu 19.10. Adds support for Fedora 31. Resolves an issue with Parallels Tools failing to install in Fedora with kernel 5.5.8. From now on, you can update Parallels Desktop without having to enter a password. Note: If you update Parallels Desktop from build 15.1.3 to this one, there's no need to update Parallels Tools. Version 15.1.3 (47255) This update for Parallels Desktop 15 for Mac 15.1.3 (47255) addresses overall stability and security issues and includes the following fixes and improvements: Install and use Windows 10 Insider Preview 20H1 in a virtual machine. Resolves an issue with the keyboard language in Windows 10 Insider Preview 20H1 not syncing with that in macOS and causing Microsoft Office apps to freeze or work slowly. Resolves an issue of not being able to join the Windows Insider Program. Resolves an issue of not being able to open guest OS files with host OS applications by dragging them from Windows 10 to macOS app icons in the Dock. Resolves an issue with Bluetooth support which caused Windows-connected devices to stop working after a short period of inactivity. Resolves an issue with right-click not working and Boot Camp Manager not opening after starting a Boot Camp virtual machine with Windows 10 in Parallels Desktop. Resolves an issue of not being able to use Windows Remote Assistance (msra.exe) in Coherence. Resolves an issue with shared smart card reader not accepting security PIN. Resolves an issue with background virtual machines appearing in the foreground after starting a Windows application. Resolves an issue with blurry text in Disco Elysium. Install and use RHEL 8.1 in a virtual machine.