How to upgrade from one minor release to another?
Ref: http://mail.zope.org/pipermail/zope3-users/2006-August/004025.html You can have more than one Zope 3 installed, e.g. you can install Zope 3.2.1 in parallel to 3.2.0 and switch your instance over to 3.2.1 (by editing the start scripts in $INSTANCE/bin). You can also install Zope 3.2.1 into the place where 3.2.0 was installed; your instance should continue to work. Such a thing isn’t recommended when upgrading between major versions, though (3.2 to 3.3).