Boost release 1.31.0 is available. See the www.boost.org home page for latest news about what's in the release. Or go right to http://sourceforge.net/project/showfiles.php?group_id=7586 to download. Thanks to everyone who helped with this release. The folks that run the regression tests and review the release candidates get a special pat on the back. Due to compiler updates, three shipping and one soon-to-ship C++ compiler now pass almost all of Boost's regression tests. A year ago, no compilers could do that. --Beman