https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117981
--- Comment #2 from Joseph S. Myers <jsm28 at gcc dot gnu.org> --- The use of standard versions in the option names is deliberate. An option to warn about any version incompatibilities would become like -Wtraditional, less and less useful over time. If your code is known to work as C11 and doesn't need to compile with pre-C11 compilers, then warnings about anything that might have changed in some way between traditional C, C89, C99 and C11 aren't helpful. Or is your suggestion to have such options that only name the older standard version, so -Wc11-later-compat (placeholder option name) would be the union of -Wc11-c23-compat, -Wc23-c2y-compat and all later such options (and once you no longer care about pre-C23 compilers, you'd move to -Wc23-later-compat instead)?
