Hi folks,
Is it now safe to use Py3-only features? If so, are we setting Python 3.6
to be the minimum version? YTEP-0033 doesn't note specifically.
The specific thing I want to use (using native metaclasses instead
of @add_metaclass) isn't Python 3.6 only, but I thought it was as good a
time as any to ask.
-Matt
