* Assert: Customizable assert macros. Maintained by Peter Dimov.
* Core: Core utilities used by other libraries, with minimal dependencies. Maintained by Peter Dimov, Glen Fernandes and Andrey Semashev.
* Lexical_Cast: General literal text conversions, such as an int represented a string, or vice-versa, from Kevlin Henney.
* Throw_Exception: A common infrastructure for throwing exceptions from Boost libraries, from Emil Dotchevski.
* Winapi: Windows API declarations without <windows.h>, for internal Boost use.
For details of what's in the release, see http://www.boost.org/users/history/version_1_56_0.html. Note that the links to files on this web page are for the final release - use the SourceForge link above to get the beta files.Please download the beta, give it a try, and report any problems you encounter.Thanks,-- The Boost Release Team