Recently the Doom Legacy Team has released a new Doomlegacy 1.44 alpha version with various updates. Some of these new updates include fixes for memory issuses in the previous 1.4x builds, as well as new gamma+brightness controls, and finnally support for voodoo dolls! This new version uses SDL.
More info and downloads can be found at the Doom Legacy web site!
And oh yeah some crazy guy re-wrote the editing docs.. Now who had that could have been? 😛
Find more out about Doom Legacy here: http://doomlegacy.sourceforge.net/