• When C++11 came out, there was an immediate feeling that the language had received a major overhaul and the best ways to do most things had completely changed. Everything from before that was legacy code, though a lot of it was around. I expect it is still mostly like that.

      Or do you mean about Rust? Yes that is new. I still don’t understand the attraction of Rust over Ada that well.

        • I think the C++11 edition (whichever it was) of Stroustrup’s book TC++PL suggested using C++11 immediately. That is what I would have suggested. I used C++ by necessity in a few projects before that, but I didn’t start actually somewhat liking it until C++11. Everything before that was ugly legacy code.