Hello fellow Boosters, GCC 4.3 will have an experimental C++0x mode containing several of the new features coming into the language. I have started nightly regression testing of Boost CVS HEAD on the current version of GCC 4.3 using this experimental mode. The "OSL5" tester will run nightly, and allow us to try out these new features within Boost. Of course, please use the new BOOST_HAS_* feature macros (described in the config library documentation for CVS HEAD) to test for specific features when using them in your Boost library. The compiler running these tests supports the following C++0x features: - Rvalue references - Right angle brackets - Default template arguments for function templates - Delegating constructors - decltype - Static assertions - C99 preprocessor - Variadic templates The version of GCC used in this tester is a patched version of the FSF GCC from their mainline (4.3) compiler, which I update periodically. For more information about the specific patches I have applied, see the OSL5 summary in the regression tests. For more information about the experimental C++0x mode in the upcoming GCC 4.3, see http://gcc.gnu.org/gcc-4.3/changes.html. Have fun! Cheers, Doug