C++20
C++20 is a major revision of the C++ programming language standard, officially released in December 2020. It introduces significant new features and improvements, including modules, concepts, coroutines, ranges, and new library components, aimed at enhancing code safety, performance, and developer productivity. This version represents a substantial evolution in modern C++ programming, building upon C++17 and earlier standards.
Developers should learn C++20 when working on high-performance systems, game engines, embedded systems, or applications requiring low-level control and efficiency, as it offers modern abstractions that reduce boilerplate and improve code clarity. It is particularly valuable for projects that benefit from features like compile-time programming with concepts, safer template metaprogramming, and asynchronous operations with coroutines, making it essential for staying current in C++ development.