[collinmanderson]

I generally develop against django master with loud warnings. Whenever a warning comes up, such as `DEFAULT_AUTO_FIELD` not being specified, or a behavior change such as `SECURE_REFERRER_POLICY`, I go through and apply the same change to _all_ my projects at the same time.

So I'm applying minor changes to multiple projects at the same time as I become aware of the new changes. Once the new Django version comes out, they're basically ready to go live with the new version.