How does C++20 compare to previous versions?

What are the main features introduced in C++20?

C++20 introduced several key features, including concepts, ranges, coroutines, and the spaceship operator for easier comparisons.

How do concepts improve template programming in C++?

Concepts allow you to specify constraints on template parameters, making templates easier to use and understand by providing clearer error messages.

Can you explain what coroutines are and how they work?

Coroutines in C++20 enable asynchronous programming by allowing functions to suspend and resume execution, making it easier to write non-blocking code.

What is the spaceship operator and how does it simplify comparisons?

The spaceship operator (<=>) simplifies the process of defining comparison operators by automatically generating them based on the types being compared.

Are there any backward compatibility issues with C++20?

C++20 is designed to be backward compatible, but some deprecated features from earlier versions may be removed, so it's important to check your code.