Last week, Microsoft open-sourced its implementation of the C++ Standard Library, also known as STL. The library is shipped along with MSVC (Microsoft Visual C++ compiler) toolset and the Visual Studio IDE. This announcement was made by MSVC team at the CppCon 2019 conference, two days ago. Users can use the C++ library repo for participating in the STL’s development by reporting issues and commenting on pull requests. (Packet Hub)