Livewire v4: Main Changes From v3 (and Discount Week!)

Livewire v4 introduces three component types: single-file components (default, similar to Livewire Volt), class-based components (traditional v3 style), and multi-file components. Single-file components use an emoji prefix by default to distinguish them from Blade components, but this can be disabled in the config. The component type can be set globally in the config or per-component via flags, and existing components can be converted between single-file and multi-file types. Livewire v4 is included by default in Laravel's starter kit and maintains backward compatibility with v3 class-based components.