What changes taken in c18 (standard version of c) compared to c programming language (first version of c)?

Question

I learn c (first version of c) i want to learn c18 is both have same syntax or completely different syntax .
Best resource and book to learn c18

Answer 1

The core syntax remains intact, C18 introduces a trove of new features and enhancements that boost efficiency and ease of use. It's like upgrading from a reliable classic car to a sleek, modern sports car—familiar yet enhanced for optimal performance. So, fear not, as your journey into C18 will feel like a familiar road with exciting new pit stops along the way!