At the top of the forum is an FAQ with two topics called:
Why doesn't my version of Photoshop or Lightroom support my camera?
Camera models supported by Adobe Camera Raw
The top FAQ explains that we provide new camera updates every quarter, and that we provide early access to Camera Raw releases on Adobe Labs. Unfortunately, we can't give specifics on dates and all models that will be supported.
The second FAQ gives specifics about what cameras are currently supported and when support was added.