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This is normal and intended default behaviour. The FileBot MSI package does not (and never did) show the application version in the window title. You can however check detailed version information in the Debug Console. See How do I open the Debug Console? for details. That said, you don't need to worry about which version you're running. If there's a new one, then FileBot will remind you. If FileBot does not remind you about a new version, then you are already running the latest and greatest, or you have already manually clicked away the reminder for the update at hand. The FileBot Portable ZIP package does however show the application version in the title bar, since the Portable ZIP allows you to run multiple versions side-by-side.