LibRaw 0.17-Beta2 adds support for two new cameras, extend support for two other (very old) cameras and fixes minor bug with Nikon 1 S2 processing:

• Fujifilm F700/S20Pro second frame support
• Fixed Black level calculation for Nikon 1 S2
• New cameras:
  • Canon G3 X
  • Sigma dp0 Quattro

Download link: http://www.libraw.org/download