> Hi,
> 
> MetaclassTalk is a reflective extension of Smalltalk that 
> provides programmers with a a meta-object protocol (MOP) to 
> control objects structure (memory allocation and access to 
> instance variables) and behavior (message sends and 
> receptions and method lookup and evaluation). It aims easing 
> experiments of new concepts, programming pradigms and langage 
> extensions.
> 
> I (at last) started porting it on a recent version of Squeak 
> (3.9). The port is still unfinished. However, you can use 
> explicit metaclasses. 
> Note that Monticello support for explicit metaclasses is also 
> provides.
> Explicit metaclasses can be safely stored and retreived from 
> Monticello repositories.
> 
> http://csl.ensm-douai.fr/MetaclassTalk
> http://www.squeaksource.com/MetaclassTalk.html

Any chance you could port to 3.8 instead or also, being the latest
stable version?