title: What are the new features in C++17?
body: <p>C++17 is now feature complete, so unlikely to experience large changes. Hundreds of proposals were put forward for C++17.</p>
  
  <p>Which of those features were added to C++ in C++17?</p>
  
  <p>When using a C++ compiler that supports "C++1z", which of those features are going to be available when the compiler updates to C++17?</p>