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.
Maintainers can have write access to the particular library for which
they have responsibility. This includes all the branches and in particular
both develop and master.
It is up to the maintainer to put patches and tests onto develop and
see whether there are any remaining problems.
It is then up to the maintainer to move the patches and tests from develop
This does not have to wait for a release of Boost.
It can be done any time and at some point master will then become
the next release.
I do not think that develop is moved to master in any other way. It is
the maintainer who will know when that is the correct action.
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.