> These days I don't write much C++ code (regressed to largely C), and when someone asks me how proficient I place myself at a 4 out of 10, and then explain how

> These days I don't write much C++ code (regressed to largely C), and when someone asks me how proficient I place myself at a 4 out of 10, and then explain how the spec has changed faster than I think most people can actually absorb it unless its their full time job to sit on the standards committee. So I don't believe anyone who gives a themselves a score over 6 unless their job actually required a deep level of standards understanding (ex: compiler developers). I generally factor in a ~5 year adoption period for newer standards as not only compiler adoption completes, but as distributions pick up newer compiler versions and make them the default. So right now, I'd consider c++17 the expected standard for people to generally be comfortable and competent with.