I wonder why won’t they fix the performance by changing the API specification of these collections? I don’t think they care about backward compatibility. For e

I wonder why won’t they fix the performance by changing the API specification of these collections? I don’t think they care about backward compatibility. For example, in C++/20 they decided UTF-8 string literals (available for nearly a decade since C++/11) now returns them in a brand new `char8_t` type, which won’t automatically cast to the old `char` type. I once had to waste couple days of work fixing the issues caused by C++ language upgrade.