Axiom version from January 2011 available http://www.axiom-developer.org/axiom-website/downloads/axiom-jan2011-src.tgz
Last time I tried to bump axiom it lead straight into desaster. The problem is that it builds on gnu common lisp which has not seen releases for 6 years. axiom ships an internal copy of gcl with many patches. That internal copy ships an internal copy of gmp which is unacceptable for the main tree. you can find axiom-201009 in the science overlay. *** This bug has been marked as a duplicate of bug 325067 ***