This course gives an overview of the main developments in the 4D language, both recent versions and improvements introduced over the years.

Some features, present in several versions of 4D, remain under-utilized even though they considerably simplify code writing and maintenance.

Other, more recent features mark a real paradigm shift in the way we code: new syntax, modern operators, typed declarations, a clearer, more structured approach to development.

Through practical examples, this course will help you adopt the right reflexes, take advantage of these often overlooked tools and write more modern, reliable and readable 4D code.