Re: DNG support. I can open a 5DIII raw image in ACR, and save it as DNG (compatible with 7.1, the most recent version available as a choice in ACR for CC). I can open this DNG in DxO 10. This also works using DNG Converter, as one would expect. If you produce a linear [demosaiced] DNG (v 1.4, for example, in the ACR/DNG Converter) DxO cannot open it.
The DNGs produced by the Magic Lantern dual ISO utility cr2hdr are also compatible with DxO 10.
I also shoot with a Ricoh GR, a camera that produces raw files natively as DNGs. I can open these in DxO 10, as well as DxO 9 (I did not own the camera when I was using DxO 8 or earlier). The GR is a fixed focal length lens with no AA filter, and it has its own DxO correction module.
kirk