CDAO release 1.0
This is the revision that includes cdao.owl (at OWL/cdao.owl) at the version that corresponds to CVS r1.34, which is the one to which the pre-OBO migration canonical URL of CDAO resolves.
Note that this version suffers from the problem of not being compliant with the OWL-DL profile, which was addressed in 0245c85 (corresponding to CVS r1.35). However, the redirection of the canonical URL was never updated to point to the new revision.