The Congress wiki page is the authoritative starting point.

If you would like to contribute to the development of any OpenStack project including Congress, you must follow the steps in this page:

Once those steps have been completed, changes to OpenStack should be submitted for review via the Gerrit tool, following the workflow documented at:

Pull requests submitted through GitHub will be ignored.

Bugs should be filed on Launchpad, not GitHub:

Creative Commons Attribution 3.0 License

Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.