Based on Ubuntu Wily and currently the latest version is 2.9.2.
Usage from local X:
docker run -it --rm -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix selu/gimp-devel
Thanks to jarfil, this image is made from his
gimp-git for those, who don't want to live on the edge, like me, too. :-)