Allegro 8.1 CLisp 2.48 Clozure Common Lisp 1.4 CMU Common Lisp 20a Embeddable Common Lisp 9.12.3 LispWorks 5.1.1 Personal Edition LispWorks 5.1.2 Professional Edition LispWorks 6.0 Enterprise Edition MCL 5.2.1 SBCL 1.0.34 Scieneer 1.3.9