[boost] Status of Boost.Polygon

According to the announcement (http://comments.gmane.org/gmane.comp.lib.boost.announce/240), Boost.Polygon library was accepted into Boost on 5 November, provided some of the most critical concerns are addressed first. I cannot find it in the 1.42 release of Boost. When can I expect it to exist in a Boost release? Regards, Anders Dalvander