I have started using IPython notebook quite a bit for writing up draft sections for my dissertation. However, given two versions of a draft (i.e., notebook), I would like to be able to generate some form of diff output to show what has changed. Does anyone know if this is currently possible, either through IPython notebook itself, or through some extension?
Not yet. This is a often a requested feature, but there are different "level" of diff you might want. Do you want only diff of codecell, or also output, what about prompt number ? etc, etc.
Lots of people have chimed in but nobody really took the time to wrote anything, even if notebook are pretty "simple" json file where cell "just" need to be "aligned" then produce a diffed-json notebook.