Is it possible to have more interface versions active?

Hi,

we have two very similar business-cases. So we thought that we can set them up in the system using one interface with two different versions. When I go to /AIF/ERR only entering the namespace (i.e. ALMEDI) I get only the results of the higher version (ALMEDI/INVOICE/2). When I enter the whole specification (i.e. ALMEDI/INVOICE/1), I get the results for the lower version.

Is this an error or is the philosophy of AIF that only the highest version should be activ and so only this version has to be displayed in /AIF/ERR?

best regards

Ignaz