Explore the new features introduced in PHP 8.1 through this conference talk from PHP UK 2022. Dive into strengthened type systems with Enumerations and "never", discover Fibers, learn about the new closure syntax and First Class Callable Syntax, and understand intersection types. Gain a comprehensive understanding of exciting additions like static values inside functions, class constants, the splat operator in arrays, named arguments, new initializers, readonly properties, and more. Examine changes to the MySQL error mode, Exceptions, Globals, and the Serializable Interface. Investigate the impact on PHP internals and applications, and get answers to common questions about these new features.