In my original materials for PSARC/2008/130 CUPS 1.3.6 I designated an interface stability of "Volatile" for the libcups and libcupsimage interfaces. I don't believe that we are likely to see incompatible change in these interfaces from the open source project and there are potentially a number of consumers. The open source project owner has stated that they intend on maintaining backward compatibility in these interfaces in minor releases. As a result, I would like to change their stability to "Uncommitted".
If there are no objections, this mail will serve to correct the taxonomy of libcups and libcupsimage. -Norm