|With lots of help from Eli Barzilay (thanks, Eli!), Robert got Arc working on the latest version of Mzscheme.|
You can get the latest code at http://ycombinator.com/arc/arc3.1.tar
HN has been running this version for about a week. It seems to be a bit faster, maybe 10-20%.
There are a few other small changes. For example, intrasymbol + has been replaced by &. And these two bugs
have been fixed.