Does AutoClass exist in WEKA?

I am new to WEKA and am interested in using the AutoClass clustering algorithm for unsupervised machine learning. I have read in several journal papers that AutoClass is included in WEKA, but I have not been able to find it within the program, nor have I been able to find references to AutoClass in the documentation or on this forum. The papers I am referring to seem to be talking about WEKA II, is it possible that AutoClass is not supported in WEKA III, or that it is referred to by a different name?

Thanks for your help.