------
- Support for specifying project directory via any of ``pytest.ini``, ``--populus-project``, or via environment variable ``PYTEST_POPULUS_PROJECT``.
- Support for running populus commands from outside of the project directory with ``-p/--project``.
- Deprecate support for ``solc<0.4.11``.
- Deprecate ``Project.write_config()`` in preparation for configuration API refactors.
- Deprecate ``$ populus config set`` and ``populus config delete`` commands in preparatin for configuration API refactors.
.. _v1.9.1-release-notes: