pay attention there was a change in 3.9 (marcus is proposing some  
fixes).
that changes the hash of classes so you get more frequently obsolete.
Have a look on mantis I think that marcus published it.

Stef

On 28 avr. 07, at 07:24, Michael van der Gulik wrote:

> I'm modifying Monticello to store Namespaced packages to a .mcz  
> file. However, I've come across a problem I've never seen before:
>
> MessageNotUnderstood:  
> AnObsoleteMCNamespacedStWriter>>visitNamespaceDefinition:
>
> Where did that "AnObsolete" part come from, and why isn't my class  
> (MCNamespacedStWriter) being used now that I've fixed the DNU? Is  
> this something peculiar to Squeak, or is Monticello doing some  
> wacky reflection on its own classes?
>
> Michael.
>
>
>