> what is the motivation to pursue updates in 20 and 23? For C++20: * Ranges! With may range operations and views * Expansion of ability of compile-time comp

> what is the motivation to pursue updates in 20 and 23? For C++20: * Ranges! With may range operations and views * Expansion of ability of compile-time computation, including a lot of standard library code. * Concepts - constrained templates * 3-way comparisons with spaceship operator + automatic comparisons generation. * You can write your own modules (Java-esque import rather than textual inclusion) * Support (albeit ugly) for co-routines * Spans: https://stackoverflow.com/q/45723819/1593077 https://stackoverflow.com/q/45723819/1593077 * Parallelism primitives * Asynchronous network operations in the standard library (Boost-ASIO-based IIANM) * Can safely implement scope guards For C++23: * Standard library via modules * Stack traces (e.g. in exceptions) * Many range views/algroithms/adapters * Expected: https://stackoverflow.com/q/68368581/1593077 https://stackoverflow.com/q/68368581/1593077 * Monadic semantics for std::optional * etc. > Are there really new features promised that today's programmer simply can't live without Well, people can live with a lot. Many people write C, after all... so you could ask that about any language undergoing long term development.