Philipp von Weitershausen wrote at 2006-5-29 18:42 +0200:
...
The CMF (and Plone on top of it) work *fine* as they are today for completely empty expressions. Reverting the BBB-incompatible cahnge, and adding deprecation warnings, is our standard practice here.
Yes, for changes that ripped out well-understood and well-supported features. I don't know whether we have a standard practice for cases like this, but there's definitely a straight-forward practice: fix the CMF :).
But this forces synchronization between the Zope version and the CMF version which then extends to lots of other components build on to of Zope and CMF. Following the usual practice (depracations) allows time to make all components compatible again. Not a too bad approach.... -- Dieter