CIRC-104 introduces breaking changes to the circulation interface. This involves introducing two new (conditionally required) properties (checkinServicePointId and checkOutServicePointId in the loan and a required property when checking out an item.
In order for the version of mod-circulation which provides this to be included in the snapshot hosted environment, all dependencies on the circulation interface need updating to support version 5.0.
As UI Check In and UI Check Out likely will only support version 5.0 these will trigger the update. It is our understanding that other modules will not be directly effected by the change, so could state dual compatibility (and hence should be updated first).