The tox team is proud to announce the 3.1.0 feature release! tox aims to automate and standardize testing in Python. It is part of a larger vision of easing the packaging, testing and release process of Python software. Details about the changes can be found in the CHANGELOG: https://pypi.org/project/tox/3.1.0/#changelog For complete documentation, please visit: http://tox.readthedocs.io/en/3.1.0/changelog.html As usual, you can upgrade from pypi via: pip install --upgrade tox or - if you also want to get pre release versions: pip install -upgrade --pre tox We thank all present and past contributors to tox. Have a look at https://github.com/tox-dev/tox/blob/master/CONTRIBUTORS to see who contributed. Happy toxing, the tox-dev team