From Fedora Project Wiki
GCC 6
GCC is updated to version 6 in Fedora 24. GCC 6 has many new features:
- General Optimizer improvements
- New languages and language specific improvements in C, C++, and others
- g++ and gcc will provide suggestions for misspelled command line options
- New target and target specific improvements
- Operating system based improvements such as Linux, AIX, and Windows
For more information about what is new in GCC 6 please visit the GCC 6 changes page: http://gcc.gnu.org/gcc-6/changes.html