C++Now 2019

Last year on C++Now I provided a "Beyond C++17" talk that described a current status of work on C++20. For last 12 months we received not only a lot of new features but some existing things were changed too. This talk will scope only on such additions and changes assuming that the audience is already familiar with the contents described a year ago. I will talk about contracts, generic functions, constraints, concepts, ranges, constexpr'ing all the things, immediate functions, "fixing" UTF-8 and aggregates, and many other hot topics.