Note that some of these are of historical rather than actual relevance. For example, the C++ books which regard C++98 rather than newer version of the language

Note that some of these are of historical rather than actual relevance. For example, the C++ books which regard C++98 rather than newer version of the language have some timeless advice, but also suggestions and idioms which have since been supplanted (sometimes by the authors themselves) by better alternatives utilizing new language features.