I go from version 2 to version 5 some improvements but ultimately not that much. However the software is very effective for the treatment and management of Raws. Check anyway compatibility of your device and file it there's still some shortcomings, such as Sigma X3F files Merrill devices. This is all the more incomprehensible that a small company like Iridient Developer does it very well. Go Adobe must keep moving to deserve its title of leader.