During the 2025 November C++ ISO meeting Edison Design Group announced that they would be winding down and that they will open-source their front end . This is the repo containing said front end along with some other components like C and C++ back ends. There is also a website with more info about the transition and a documentation website . At least as far as my knowledge extends this is one of the four still extant C++ front ends (Clang, GCC, and MSVC being the others). It's most notably...