True, at most I read excerpts when I have a question. Can you tell me what gave it away? I thought the saying is that C17 is the sane version of C11 and C23 has quite some changes, but is way to new to be counted on.
C17 is indeed a bug fix release. C23 finally removed some features that were deprecated a long time ago already in the first standardized version (auto as storage classifier, K&R function definitions, empty parenthesis as "arbitrary arguments") and also support for ones' complement. So yes, C is extremely backwards compatible.
