Erik Cruz wrote:
It depends on your deployment strategy. The point of the GAC is that you can
have multiple versions of the same assembly installed on the same machine,
and your applications can be set to use whichever of them is best for their
purposes. If you only ever want one version (the latest) installed on a
machine then yes, it's best to uninstall the previous version first (as long
as your application isn't configured to only use that particular version).