Immutable dates and casting to them

Laravel 8.53 introduces the immutable_date and immutable_datetime castes that convert dates to Immutable.

Cast to CarbonImmutable instead of a regular Carbon instance.

1class User extends Model
2{
3    public $casts = [
4        'date_field'     => 'immutable_date',
5        'datetime_field' => 'immutable_datetime',
6    ];
7}

Tip given by @PascalBaljet