I will open issues based on what I can confirm from your test set. It looks like John is handling the type_traits additions.
It would be nice if something would actually happen. The bug trackers are full, but (with a few exceptions) *nothing* happens. My point of view: boost has done a lot for C++11, or rather, this is what made C++11 possible in the first place. But you've been stuck with it ever since. Newer C++ versions are not even taken into account or use very old (highly buggy) code for C++03 because no updates have been made. This applies to almost all libraries. boost has thus developed from a progressive to a conservative library. Very often it also happens that requests are shot down immediately. According to the motto "Nobody has needed this before, so you don't need it either!". regards Gero