Marc:
SAP Crystal Report not including backwards compatibility is definitely becoming more and more of a problem. Unfortunately this is controlled by SAP not Adagio.
For years we've had a problem with other software using SAP Crystal Reports v25 while Adagio was still at v20. All we could do is advise our clients that they will have to run Adagio and the other software on separate computers.
SAP's expectation that all software developers and users will be able to upgrade concurrently with every new release of Crystal Reports is unrealistic but I have no idea how we could convince them otherwise.