Steel Bank Common Lisp’s newest version, 1.3.9, is ready for download at the usual place. This month’s release is a small one that fixes a bug, optimizes some operations with complex numbers, and adds an enhancement that helps with garbage collection. See the NEWS page for details.
After compilation, I ran the regressions tests and everything looked fine except that the test script itself exited with a bad status. The test summary showed the expected results though. In any event, everything installed correctly and is working.
Once again, SBCL is an outstanding Lisp environment that’s open source, comes with complete source and documentation, and has an industrial strength compiler. If you’d like to try out Lisp or move to better environment than you have, try SBCL.