OK, so the index isn't being auto-updated.
>>
>> [1] http://download.zope.org/Zope2/index/2.12.0a4/zope.component/
>>
>> [2] http://svn.zope.org/Zope/trunk/versions.cfg?rev=99525&view=auto
>
>
> Hanno updated versions.cfg two days ago.
I fixed the CMF test issue by conditionally importing IDefaultViewName
from the new location (zope.publisher.interfaces), falling back to the
old one (zope.component.interfaces).