Portability
^^^^^^^^^^^

Supported Python versions
"""""""""""""""""""""""""

Where Python is required,
`CPython <https://www.python.org>`__ versions 3.6 to 3.8 are supported.

.. Note to developers!
   Please use """"""" to underline the individual entries for fixed issues in the subfolders,
   otherwise the formatting on the webpage is messed up.
   Also, please use the syntax :issue:`number` to reference issues on GitLab, without the
   a space between the colon and number!

CMake
"""""

Updated required CMake version to 3.13.