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New features:
- Use the ``build`` subcommand for ``towncrier`` to build the changelog.
Fixes compatibility with ``towncrier`` 21.9.0 or later.
Requires ``towncrier`` 19.9.0 or later.
[mcflugen] (`Issue 22 <https://github.com/collective/zestreleaser.towncrier/issues/22>`_)
- For parsing, use ``tomli`` when on Python 3, ``toml`` on Python 2.
Same as ``towncrier`` did until recently.
[maurits] (`Issue 23 <https://github.com/collective/zestreleaser.towncrier/issues/23>`_)