Data Transfer Object Versions Save

• Support union types (#185)
• Resolve default cast from parent classes (#189)
• Support default values (#191)

• Fix when nested DTO have casted field (#178)

• Allow valid DTOs to be passed to caster (#177)

• Fix for null values with casters (https://github.com/spatie/data-transfer-object/pull/176)

This package now focuses only on object creation by adding easy-to-use casting and data validation functionality. All runtime type checks are gone in favour of the improved type system in PHP 8.

• Require php:^8.0
• Removed all runtime type checking functionality, you should use typed properties and a static analysis tool like Psalm or PhpStan
• Removed Spatie\DataTransferObject\DataTransferObjectCollection
• Removed Spatie\DataTransferObject\FlexibleDataTransferObject, all DTOs are now considered flexible
• Removed runtime immutable DTOs, you should use static analysis instead
• Added Spatie\DataTransferObject\Validator
• Added Spatie\DataTransferObject\Validation\ValidationResult
• Added #[DefaultCast]
• Added #[CastWith]
• Added Spatie\DataTransferObject\Caster
• Added #[Strict]

• Add support for using collection internally

This might be a breaking change but it was required for a bugfix

• Prevent DataTransferObjectCollection from iterating over array copy (#166)

• Fix for invalid return type #164

• Allow the traversal of collections with string keys