[Zope-dev] How to update products?

[Thilo Mezger]

hi!

i was wondering if someone has already developed a strategy how to update
products in zope.

for example, you are running a site that uses the Confera-1.2.0 product
and it is populated by several thousands of messages.  now DC releases a
bug-fix version 1.3.0 of this product.  you can put that in your
lib/python/Products folder, restart zope and newly created confera's
will be version 1.3.0 of course.

but how can i update my old and running confera system from 1.2 to 1.3?

an instance from the (here) Confera class is created when you create a new
Confera object in the management interface and the class definition is
saved with this instance somehow?!  unlike zclasses.

could anyone shed some light on this problem/phenomena please?


thanks
thilo