potfit is released under the GNU General Public Licence Version 2.
By downloading the source code you agree to the conditions of that [[License|license]].
The latest version of potfit can be downloaded here:
Previous potfit releases can be found [[https://www.potfit.net/download/|here]].
You can download the current version via anonymous git access at [[https://github.com/potfit/potfit]].
If you want to send us your changes, you can send it to the potfit [[mailinglist|mailing list]] or as a pull request on github.