PHP 8.1 required. Improved typehints across the framework. CakePHP now leverages union types to formalize the types of many parameters across the framework. Upgraded to PHPUnit 10.x New enum type mapping support in the ORM enabling more expressive model layers with improved type checking. Table finders with named parameters, providing more expressive query building APIs. Added time-only Time type and greatly improved Date and DateTime support via chronos 3.x. Support for PSR17 HTTP factories was added.