[pjmlp]

I can write C++98 or C++11 code that will fail in a C++23 compiler, because C++ also isn't 100% backwards compatible.

[justcuriousab]

But the changes required are generally significantly smaller and less frequent, right?

[pjmlp]

If the build breaks when changing the value of -std= (or equivalent), it hardly matters how big it is.