Hello, hwloc v1.6 won't be ready soon so I am planning to release a 1.5.1 to flush all pending bug fixes. We still have two freebsd issues to figure out (Sebastian Kuzminsky's wrong topo on dual E5, and a segfault/regression spotted by our local testing infrastructure), but I don't expect many other problems since things have been pretty calm in the v1.5 branch.
Brice