- This is the last release that supports Python <3.8 and MongoDB <4.0
- Collection methods `insert()`, `update()` and `remove()` are deprecated in favor of
corresponding `*_one()` and `*_many()` methods. Old methods will be removed in the next release.
- Collection methods `save()`, `find_and_modify()` and `group()` are deprecated and will be removed
in the next release.
- `as_class` argument of `find()`, `find_with_cursor()` and `find_one()` is deprecated and will
be removed in the next release.
- PyMongo 4+ is now supported. If you will migrate from PyMongo 3 to PyMongo 4, please be sure
to check their PyMongo's guide because newer version has a number of incompatible changes.