SBCL 1.1.0 has been released and is available from the SBCL Download page. Although they have brought the OS X binary up to date, I chose to compile from source. The compilation ran without difficulty and as far as I can tell from my limited use so far, it runs without any problems.
If you check the News page for what's changed, you'll find that the release is a combination of enhancements and bug fixes as well as an added section to the manual that discusses random number generation. Congratulations to the SBCL team on their achievement of the 1.1 milestone.