My client has 10 Desktop Advanced licenses for ArcGIS Desktop 10.2.1. I'm testing installing ArcGIS Desktop 10.6 at the client's site. I couldn't use the existing license server, so I installed License Manager 10.6. I assume I need a new license file for at least 1 10.6 seat in order to continue. Is that correct? Can I use the client's existing license file in a 10.6 environment?
