On Fri, Mar 26, 2010 at 7:48 PM, Kenneth Tilton
> Not sure what 4 added, then. maybe the flattening of recursion into a
> queue of changes?
I didn't even know that there was Cells4. Is it published anywhere? Or
is it in common-lisp.net CVS and the version change is just not
mentioned anywhere? I can definitely see that the branch I based on
uses a fifo queue for something. The last commit is from October 2008.