The latest CVS snapshot is available:
http://www.libsdl.org/cvs.html
Changes since SDL 1.1.7:
- Fixed aRts development environment detection
- Mattias fixed an RLE alpha blending bug
- Integrated QNX Photon cleanups from Patrick
- Fixed joystick crash on Windows (thanks Pete)
Enjoy! 
-Sam Lantinga, Lead Programmer, Loki Entertainment Software