9.0.0-alpha

What's Changed

• [9.x] Split Product interface by @rez1dent3 in #474
• [9.x] ExtraDtoInterface by @rez1dent3 in #479
• [9.x] Eager loading by @rez1dent3 in #480
• [9.x] PHP 8+ Union types by @rez1dent3 in #482

Full Changelog: 8.4.0...9.0.0-alpha