Rather than doing the 2.5 Session upgrade work-around, I thought I'd be smart and delete the session_data_manager before restarting Zope (after changing start to use zope-2.5 pythonhome rather than Zope-2.5b3) No I keep getting AttributeError on request.SESSION.getSessionData() Seems the SESSION object doesn't have this method anymore. However if I create a new session_data_manager lower in the tree, and point that at a new transient object container in /temp_folder, then it works again. However if I restart zope, the transient object I created disappears. Seems to be a problem in /temp_folder/session_data, except that even if I create a new transient object /temp_folder/mysession and point the root session_data_manager object at it, I still get attributeError on getSessionData(0 Anyone have any ideas? Or do I need to go to a backup? Brad Clements, bkc@murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax netmeeting: ils://ils.murkworks.com AOL-IM: BKClements