Hi, I'm not sure why this track is set to Milestone 1.36 / No Version. This bug is there since at least 1.35 RC1 and not fixed in 1.35 Release. AFAIR i set the version or milestone to something like 1.35*. If that's impossible :) and nobody changed it, i'm really sorry. However, this needs to be addressed soon (IMHO), and it's easy to fix anyway. #define NDEBUG #define BOOST_ENABLE_ASSERT_HANDLER #include <boost/range.hpp> void reproduce() { boost::iterator_range<char const*>("early").end(); }