Programming, and functional programming in particular, has changed a _lot_ in C++ since 2012: * Important libraries have been developed (e.g. Niebler's ranges)

Programming, and functional programming in particular, has changed a _lot_ in C++ since 2012: * Important libraries have been developed (e.g. Niebler's ranges) * The community has gotten used to C++11 constructs and getting the most out of them * The language itself has evolved, with 3 new standard revisions in 2014, 2017 and 2020; the latter change is actually pretty significant and we're only starting to observe its effect. So, even before reading this piece, you must realize it is quite outdated.