C++11
  attributes: carries_dependency, depreacated, fallthrough, likely, unlikely, maybe_unused, nodiscard, noreturn, no_unique_address, optimize_for_synchronized
  Constexpr and macros
  decltype / decltype(auto)
  Function Pointer
  Lambda Expression
  lvalue & lvalue reference, rvalue & rvalue reference Copy, Move constructor
  noexcept
  remove_pointer_t
  Pointers(Raw & Smart)
    Unique pointer, shared pointers
  Type Triats

C++14

C++17
  Fold Expression
  string_view


C++20
  __has_cpp_attribute
  3 Way Comparator
  Abbreviated Function Template
  Aggregate initialization
  Concept & Contraint