------------------
- Internal refactorization of Malloovia Model’s classes, which are now
based on ``typing.NamedTuple`` instead of ``collections.namedtuple``,
which allows for proper type checking and documentation of the
fields.
- Several typing bugs related to YAML export and import fixed.
- This version introduces backwards incompatibility, since it requires
python 3.6+ to run. However the API and usage is the same.
.. _section-7: