New keywords: char8_t, co_await, co_return, co_yield, concept, consteval, constinit, import*, module*...C++20 gives language support....generators objects).
generator iota(int n = 0) {
while (true)
co_yield n++;
}
operator
New...are also constexpr algorithms like std::sort, std::rotate, std::reverse and many more.
consteval
A new...};
std::ranges::sort(v);
for (auto& i: v | ranges:view::reverse) cout << i;
With Ranges we also get new