DNG converter 5.1 was the first version that supported your camera. But it is supported in every subsequent version. So you can use the latest version (currently 7.1) as well. It is a standalone program, and comes in its own installer. All you have to do is run the installer.
I'll just add to what JimHess has said:
The list of what versions go together is here: http://helpx.adobe.com/x-productkb/global/camera-raw-compatible-applic ations.html