Version 6.4.0 - 2022-05-31
* Drop python 3.6 and add python 3.10
* Replace test setuptools command by unittest discover
* Bug fixes (see git log for details)

Version 6.2.0 - 2021-12-06
* Bug fixes (see git log for details)

Version 6.0.0 - 2021-05-11
* Bug fixes (see git log for details)

Version 5.8.0 - 2020-11-30
* Bug fixes (see git log for details)

Version 5.6.0 - 2020-05-08
* Initial release
