New Arc Out

Perhaps more interesting is that mzscheme changed a core language feature (mutable cons cells) without providing any backcompat.

Just curious: Why was mzscheme chosen to implement Arc rather than some other Scheme implementation?

In case you decide to compile MzScheme 372 from sources on a Fedora 10 box that has SELinux in enforcing mode, you need to take a few (simple) additional steps:<p><a href="http://aadnyavali.wordpress.com/2009/06/07/making-arc-3-play-nicely-with-selinux-on-fedora-10/" rel="nofollow">http://aadnyavali.wordpress.com/2009/06/07/making-arc-3-play...</a><p>I'm still downloading Fedora 11, but suspect that the same exercise will be needed for that as well.

I wonder whether Arc will end up in effect maintaining mutable-cons mzscheme. If this happens, I hope that Arc's focus won't shift to the implementation details.

I wonder if PG can tell us what the new changes are. I'm sure that there is a changelist, but I don't see it.