Doomsday Shell.app has conflicting version information on macOS
the Doomsday Shell.app from the Doomsday 2.1.1 release has some problems with the embedded version information:
the CFBundleVersion version entry from the Info.plist file is set to 2.0, while it should be set to 2.1.1
the CFBundleShortVersionString entry is only provided via the localized InfoPlist.strings file instead of the main Info.plist file. Apple has discouraged doing things this way for more than 10 years.
this means the incorrect version number 2.0 will be shown when using 'QuickLook' on the app.