Darktable 1.2rcl henceforth available for the download.

For those who unfamiliar, darktable is an open source photography workflow application and RAW developer. It aims to be a virtual lighttable and darkroom for photographers to manage digital negatives in a database, view them through a zoomable lighttable and enables you
to develop raw images and enhance them.

Now with the new release you can adapt to the properties of your camera's sensor (72 cameras already profiled for you); you can convert some basic edits from your lightroom collection to darktable operations; you can duplicate your modules and apply them more than one time with different settings. And so on. The full documentation is available here!