Hi Marco, thanks for testing it!

Each beta release installs into its own separate folder by default, so this one will install to c:\Program Files\MoI 4.0 beta Nov-18-2017 . You don't have to uninstall the previous one.

re: copying files - the new beta will have its own commands folder so anything you did to customize the previous beta won't be in the new one you'll have to copy those files over into it same as you did for the previous one.

- Michael