id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
28750	Django 2.0 should permit Meta.manager_inheritance_from_future	Charlie Denton	Charlie Denton	"I'm trying to make a library compatible with both django 1.11 and 2.0b1, but I've hit something of a snag.

I have added `manager_inheritance_from_future` to the `Meta` class of my base model, which removes the following warning:

    RemovedInDjango20Warning: Managers from concrete parents will soon qualify as default managers if they appear before any other managers in the MRO. ...you can switch to the new behavior right away by setting `Meta.manager_inheritance_from_future` to `True`.

So far so good. Unfortunately, now that I've added that for django 1.11, I'm getting this error on django 2.0b1:

    TypeError: 'class Meta' got invalid attribute(s): manager_inheritance_from_future

The `manager_inheritance_from_future` option was removed in 631f4ab06112aca5bd6a57b81159048f936050bf, but this is pretty frustrating. I'm not sure how to make this library compatible with both versions, as a result of this.

Perhaps this removal was premature?"	Bug	closed	Database layer (models, ORM)	2.0	Release blocker	fixed			Accepted	1	0	0	0	0	0