If, like me, you use Parallels Desktop Lite, then I have bad news for you. It's no longer free to run macOS or Linux, so DON'T update it if you still want to use it!
I got macOS Mojave 10.14 / 10.14.1 installed in Parallels very easily! But encountered some graphics issues with certain apps... and managed to find a workaround.
When macOS High Sierra was released around 25th September, I tried to install it in Parallels Desktop Lite. However, both a clean install in a Parallels Virtual Machine (VM), nor an in-place update did not work (the High Sierra VM would refuse to boot). I discovered the High Sierra installer converts the VM file system to Apple File System (APFS). However, Parallels does not support APFS, so here's how to disable the conversion and get High Sierra running in a Parallels.
You have have read that CheckPoint, a cyber security research company, has identified vulnerabilities that may allow an attacker to compromise your computer using malicious subtitle files downloaded by popular media players including Kodi and VLC. It's not clear if this affects macOS too, but in light of this threat, here is a summary of how I further "lockdown" any apps I'm unsure of...