ABCL 1.1.1 Allegro 8.2 Allegro 9.0 CLisp 2.49 Clozure Common Lisp 1.9 CMU Common Lisp 20d Embeddable Common Lisp 13.5.1 LispWorks 5.1.2 Professional Edition LispWorks 6.0.1 Personal Edition LispWorks 6.0.1 Enterprise Edition LispWorks 6.1, 6.1.1 Professional Edition MCL 5.2.1 SBCL 1.1.8 Scieneer 1.3.9