+;;; 46: (2003-11-11) Tim Daly, Jr. (and Christophe Rhodes) reported
+;;; .fasl incompatibility on sbcl-devel 2003-11-09.
+;;; 47: (2003-11-30) Static variables were rearranged in 0.8.6.11.
+;;; 48: (2004-03-01) Renumbered all the widetags to allow for more
+;;; microefficiency in sbcl-0.8.8.10
+;;; 49: (2004-05-04) Changed implementation of DEFFOO macros and the
+;;; functions they expand to.
+;;; 50: (2004-05-20) Changed %COMPILER-DEFUN signature again.