With the release of LR 4.4. many of us were hoping the there would be support for the Sigma Merril cameras. Unfortunetly this has not come to pass and one can now assume that it not going to happen at all. I am disappointed, for I find the process now using Sigma software to tendious and slow for pocessing large groups of files. I don't think I will sell my DP2, for it is fabulous in what it does well, but I no longer use it as a primary camera. The sensor has such great potential but it seems that Sigma does not have interest or capacity to improve on it. Choosing instead to produce one camera after another...DP1,DP2,DP3,DP4.......DP23, etc. The truth is that a program like Lightroom has spoiled me, so that having to spend a day editing Sigma files is a chore. Somehow I found the act of packing a view camera,tripod and film holders all day, followed by hours in the lab, less tiresome.