In DSC V4, you can only have one version of a DSC resource installed. DSC V5 detects versions of DSC resources now, which allows you to have more than one version present on the filesystem. Different DSC configurations can now rely on different versions of DSC resources and not affect each other.

Currently, class-based DSC resources do not allow more than one version of a DSC resource on a target node. This will most likely be fixed by the time of release, as what is currently available is only in preview. We mention it here as a warning while using the preview releases and expect it not to matter when the final version is released.