Dear peeps, I have an old, official, boxed full version of Parallels Desktop (version 6). I want to buy an upgrade to the latest version of Parallel DT 6, but I cannot install the old full version of Parallel DT 6 on my iMac anymore (as my MacOS v15 Sequoia cannot run the installer of Parallel DT 6). Can I safely buy the upgrade version of Parallels Desktop and install this on my iMac or does the installer expect an earlier version to be installed on my iMac? Thanks in advance for any help / advice !