Forum OpenACS Development: Further notes on 4.6.3 -> 5.0 upgrading

I am still trying to push through the upgrade, but at this point it looks like the main stumbling block is acs-authentication.  There are too many changes from 4.6.x infrastructure, that make an upgrade *extremly* difficult.  Running upgrade scripts that update data model, etc. is not enough -- there needs to be an upgrade script that properly updates users, auth_authority and friends.  Without that it is, basically, impossible to login to the installation to perform upgrade of th rest of the system.