yes NB is really specific with its metadata description
In Pharo 5.0 I see deprecated classes stripped of all methods and variables defined in a package like... ��
Object subclass: #NBExternalStructureinstanceVariableNames: ''classVariableNames: ''package: 'Deprecated50'
It was was useful having these remain to facilitate loading Pharo 4.0's TalkFFI for a first look at porting it to Pharo 5.0.�� Somewhat expectedly, the class initialization fails with...���� ��MessageNotUnderstood: CXIdxDeclInfoStruct class>>rebuildFieldAccessors
(since that method used to be in NBExternalStructuredue to ��"NBExternalStructure subclass: #CXIdxDeclInfoStruct)
But it would be nicer to get a Deprecated message rather than a MNU, initially something simple like this...
�� �� Deprecated subclass: #NBExternalStructure
�� �� Deprecated class >>��doesNotUnderstand:�� �� �� �� ��DeprecatedError signal.
but maybe later something like...
�� �� Deprecated class >>��doesNotUnderstand:�� �� �� �� ��Transcript crShow: self deprecationNotes.�� �� �� �� ��DeprecatedError signal.
�� �� NBExternalStructure class >> deprecationNotes �� �� �� ���� �� �� �� ^ 'Blah-d-blah. Use UFFIXxxxxx instead'.
cheers -ben