In this version, Integrator Acquisition System (IAS) has replaced Content Acquisition System.
When you open a graph created before the upgrade, all fields that begin "CAS" have been moved into the Custom Properties set. You can copy the value of each property into the associated field that begins "IAS". Alternatively, in the source XML of the graph, you can change the name of the property to match the new name. In other words, you can change casHost to iasHost in the graph XML.