Mark Mitchell announced the availability of GCC 4.1.0 saying, "this release is a major release, containing substantial new functionality relative to previous releases." Among the changes, new features and fixes listed for this new release series are a number of general optimizer improvements, language specific improvements, and some protection from stack-smashing attacks by providing buffer overflow detection and reordering of stack variables.

GCC is the GNU Compiler Collection which includes C, C++, Objective-C, Fortran, Java, and Ada compilers. Download GCC 4.1.0 from a gcc.gnu.org mirror.