Well there was the Ephemerons stuff you can add too
http://map.squeak.org/package/fe2a35f5-3f97-431e-8596-58e810aa3c72
ian had a version he pushed out a couple of years, back which was retracted because it caused VM crashs, but later was proven to be an off by 1 C/slang coding error. But no-one I think had the courage to inflict back onto the community.
Er so how would compatibilty work with this new way given an image which may or may not include image side companion code.
-- = = = ======================================================================== John M. McIntosh johnmci@smalltalkconsulting.com Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com = = = ========================================================================