It's harder than it looks. If you improve things willy-nilly, then you split the language - some will use the more modern version, some will stay behind. IMO,

It's harder than it looks. If you improve things willy-nilly, then you split the language - some will use the more modern version, some will stay behind. IMO, a better evolution is to do what the Rust folks have done - define a new language. This way it has a new name and you don't have to qualify which version of 'C' you mean.