How often does GraphicsMagick pick up new code from ImageMagick?
GraphicsMagick never picks up new code from ImageMagick. Not long after the GraphicsMagick project was started in November 2002, ImageMagick abandoned the MIT X11 style license it had been using since 1992, and switched between several different licenses until it ended up with one based on the Apache license, which is intended to penalize projects which borrow some of its source code, or fork from it. Since that time, GraphicsMagick has not incorporated any ImageMagick source code. Authors of new features are encouraged to independently contribute their work to the GraphicsMagick project so that it can be released under GraphicsMagick’s MIT X11 style license without additional encumberment.