* If you're reporting an issue with vdirsyncer:

  * Make sure you have the latest version by executing ``pip install --user
    --upgrade vdirsyncer``.

  * Include the Python version, your configuration, the commands you're
    executing, and their output.

  * Use ``--verbosity=DEBUG`` when including output from vdirsyncer.

* If you're suggesting a feature, keep in mind that vdirsyncer tries not to be
  a full calendar or contacts client, but rather just the piece of software
  that synchronizes all the data. `Take a look at the documentation for
  software working with vdirsyncer
  <http://vdirsyncer.readthedocs.org/en/latest/supported.html>`_.

* If you're submitting pull requests:

  * If you thought of a new feature for vdirsyncer, don't just go on and
    implement it, but **first discuss it in the issue tracker**, otherwise you
    might have wasted your time if your idea gets rejected.

  * Make sure your tests pass on Travis.

  * But not because you wrote too few tests.

  * Add yourself to ``AUTHORS.rst``. Don't add anything to
    ``CHANGELOG.rst``, I do that myself shortly before the release. You can
    help by writing meaningful commit messages.