What's the way to submit bugfix propose patch to epic?

What’s the standard way to submit/propose bugfix to the engine? Github? Something else? Is there a wiki on subject?

I have a strong impression that I’ll need to do that at some point in the future.

Only through GitHub fork.

You create your own fork. Than checkout master branch (or release, but epic dev’s tell me that master is recommended). Create a new local branch - make your fixes there. Commit it to your fork and make a pull request to epic rep.

Thanks, that answers it.

Question answered.