Why isn't boost-python getting bumped?

The submodule for boost-python is pinned to https://github.com/boostorg/python/tree/8dd151177374dbf0aa5cb86bd350cf1ad13e2160. As of writing that commit is 18 months old.

It looks like the submodule hasn't been bumped since boost 1.77.0.

There have been a number of commits to its default branch since that pinned commit. In particular, https://github.com/boostorg/python/pull/385 fixes boost-python being broken in cpython 3.11, which is blocking many users (https://github.com/boostorg/python/issues/400, https://github.com/boostorg/python/issues/388, https://github.com/arvidn/libtorrent/discussions/7178)

What needs to be done to get this change into a released version of boost?