I have updated http://trac.sacrideo.us/wg/wiki/SchemeImplementationReleases
to contain the dates and version numbers for the latest stable releases
of the 45 Schemes currently in my test suite.  Where there doesn't seem to
be a stable release, I have tried to find the latest release available.

Please post any corrections.  Thanks.

--
Newbies always ask:                             John Cowan
  "Elements or attributes?                      http://www.ccil.org/~cowan
Which will serve me best?"                      cowan@ccil.org
  Those who know roar like lions;
  Wise hackers smile like tigers.                   --a tanka, or extended haiku