Somehow I missed the fact that SBCL 1.1.4 was released at the end of January. I just compiled and installed it and as usual everything is fine. The new release is mainly bug fixes and an optimization to the LOOP macro.
I love SBCL. It’s a world-class Lisp system that compiles to native code. If you’d like to get started with Lisp, I can’t recommend SBCL and Emacs/SLIME enough. Together they make an outstanding development system.