I swear I remember discussing this a while back but I can't find an email trail.... I'm going to remove ZopeUndo from ZODB, starting with 3.9. Zope 2 already has a copy (well, an external from a ZODB tag) and if someone needs it to be in a ZEO server for Zope 2 applications, they can make an egg for it and include the egg in the ZEO server. Jim -- Jim Fulton Zope Corporation