The API hasn't changed, so they should be fine, though it really depends to what extent the overridden methods in your code modify behavior. ----- Original Message ----- From: "Ross Lazarus" <rerla@channing.harvard.edu> To: <chrism@digicool.com> Cc: <zope-dev@zope.org> Sent: Thursday, March 15, 2001 8:02 PM Subject: catalog upgrade - what about products which subclass zcatalog

I just upgraded my site explicit ZCatalog objects using Chris's very helpful http://www.zope.org/Members/mcdonc/HowTos/UpgradeToNewCatalog instructions - but I have a bunch of catalog aware zclasses and some zclasses which (eg zdiscussions things, based on ZDBase) use Products.ZCatalog - given that the base class has changed, do they need any tweaking to take advantage of the new b+tree code?