Listed below are the Esri software products supported by ArcGIS License Manager 10.4.
ArcGIS Desktop 10.4, 10.3.x, 10.2.x, 10.1 SP1, 10.1, 10.0, 9.x
ArcGIS Engine 10.4, 10.3.x, 10.2.x, 10.1 SP1, 10.1, 10.0
ArcGIS Pro 1.2.x
Esri CityEngine 2015.x, 2014.x, 2013.x, 2012.x
ARC/INFO Workstation 10.0, 9.x
Named User (via and on-premise ArcGIS for Portal)
ArcGIS Pro 1.0.x, 1.1.x, 1.2.x