[boxed]

Upstreaming to Django becomes very hard because he's moved stuff around. Also, switching to plain just to try it out becomes super hard because of this same thing. The idea of having a faster moving fork makes sense, but this isn't it.

[danpalmer]

Agreed. The about page also says that the plan is to update Plain to include new Django changes, but that would also be hard.

Django has a "contrib" package. I could see a fork with a fast moving contrib directory, or even just the Django project doing that with an explicit call-out for that package having a different set of breaking change expectations. A bunch of features started in contrib and graduated out of it over time, would be nice to keep that going.