At a previous employer of mine we would have happily switched to c23. Postgres is written in c and if you want to write an extension for Postgres you're going t

At a previous employer of mine we would have happily switched to c23. Postgres is written in c and if you want to write an extension for Postgres you're going to have the easiest time if your extension is also written in c. However, there's no reason not to use the newest c version. So, c is not just for legacy code.