ABCL 1.2.1 Allegro 9.0 CLisp 2.49 Clozure Common Lisp 1.9 CMU Common Lisp 20e Embeddable Common Lisp 13.5.1 LispWorks 6.1.1 Personal Edition MCL 5.2.1 SBCL 1.1.12 Scieneer 1.3.9