Djblets 3.0 is a transition release, dropping Django 1.6 support but

retaining Django 1.11 support and adding in Django 3.2 TLS support.

We'll be moving Review Board 4.0 to this in time, and then finally

completely dropping older non-LTS releases of Django and Python 2.x in

Djblets 4.0.
To start, we're dropping Django 1.6 support, leaving only 1.11 as a

compatible version. We won't be adding 3.2 support until the codebase

is ready to work with it.

Ran setup.py develop in a virtualenv with 1.6. Saw that it installed

Django 1.11.