Yes get your point OB and perhaps I could have explained it a bit more clearly. Lightroom as you know uses the same Camera Raw pipeline as CS3 but how one's files are processed depends on what version of Camera Raw Adobe were using when one's particular brand of raw files were used in the calibration process.
For example, Camera Raw v3.7 and by implication the DNG converter were in existence when my Canon G5 raw files (CRW) were calibrated by Adobe. Now when I open up Lightroom and look at either the original raw file (CRW) or a DNG converted version of the same image it shows me that Camera Raw v3.7 is being used in the rendering process. The same thing applies to previously imported CR2 files from my 30D. However, recently taken CR2 files and subsequently converted to DNG files using the version 4.4.1 converter show up as Camera Raw v4.4 being used in the rendering process.
So in short, how the image is rendered (either in Lightroom or CSx) depends on the version of Camera Raw in existence when your particular model of camera was calibrated by Adobe. That cannot change unless Adobe go back and redo the calibration process all over again which is doubtful. However, raw files converted to DNG using the latest DNG converter will and do show up as being rendered using the latest version of camera raw but as the OP is already shooting in the DNG format and therefore not using/needing to convert to DNG he is essentialy using the DNG version current when his camera manufacturer built it. In essence it could become an outdated raw format unless firmware is issued to upgrade it. I really don't know too much about the processess involved here so much of this is guesswork of course.
