Lightroom Journal, the official Adobe Lightroom news source, has announced the availablility of Lightroom 3.6 and the companion Camera Raw 6.6. This should appear automatically via the update mechanism. If not they can be downloaded directly from Adobe.
Features include new camera support for Canon PowerShot S100, Fuji FinePix X10, Leica V-LUX 3, Nikon 1 V1, Nikon 1 J1, Panasonic DMC-GX1, Ricoh GR Digital IV, Samsung NX5, Samsung NX200 & Sony NEX-7.
Additionally there are Lens Profiles for Sigma, Phase One (& Mamiya), Canon, Nikon and Sony lenses.
Finally a range of bugs from broken D3x tether to Grid advancement failure have been fixed.
More detail can be had from Lightroom Journal.