...one of the most highly
regarded and expertly designed C++ library projects in the
world. — Herb Sutter and Andrei
There has been some discussion on the mailing list of how best to get patches available to users of libraries. This is the understanding I have been using. I posted this and have had no comments on it.
If there is more than one maintainer then any of them can do this. Each will be able to see what has happened from the git log.