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If you mean XOOPS as in the XOOPS core team, then the answer is simple, it is not our job to develop modules like a forum or maintain them. Modules in reality should be developed, maintained and updated by module developers. If we were to do this then we would in reality have no time for the core.
If my memory serves me correctly, CBB is still being maintained and updated. If you search through these forums, you will find the answers you need on this subject.