On Feb 25, 2006, at 11:08 PM, Andreas Raab wrote:
>
>
> Well, it's a hard problem. One idea might be to actually record the  
> changes and use that in cases where it is relevant (e.g., remove  
> vs. classification etc). I'm certain there are issues with that  
> approach but it might be worthwhile to think about.

It's a hard problem in general, but dealing properly with class  
renames isn't all that hard - we just need to track classes by some  
kind of unique ID (which we assign the first time we see them and  
maintain from then on) rather than by name.  This would be a very  
shallow change to MC, and even making it backwards compatible  
shouldn't be *that* hard.

Avi