Error implements Throwable.

\-Error
|-CompileError
| \-ParseError
|-TypeError
| \-ArgumentCountError
|-ValueError
|-ArithmeticError
| \-DivisionByZeroError
|-UnhandledMatchError
\-AssertionError

• Internationalization of message formats
• Second parameter of count function doesn't affect Countable
• Predefined formats for DateTime class

PHP 8.0, Laminas MVC 3.2, Symfony 5.2, Laravel 8.28, PHPUnit 9.5, Doctrine ORM 2.8