- Upload all the release packages to PyPI with twine:

    $ python3 -m twine upload path/to/archive/*

- Make sure the new version appears on https://motor.readthedocs.io/. If the
    new version does not show up automatically, trigger a rebuild of "latest":
    https://readthedocs.org/projects/motor/builds/

-  Bump the version number to <next version>.dev0 in setup.py/__init__.py,
    commit, push.

- Publish the release version in Jira.

- Announce the release on:
    https://developer.mongodb.com/community/forums/c/community/release-notes/

- Create a GitHub Release for the tag using https://github.com/mongodb/motor/releases/new.  The title should be "Motor X.Y.Z", and the description should contain a link to the release notes on the the community forum, e.g. "Release notes: mongodb.com/community/forums/t/motor-2-5-1-released/120313."