diff --git a/Model/ModelRegistry.php b/Model/ModelRegistry.php
index db346fb..7631d0b 100644
--- a/Model/ModelRegistry.php
+++ b/Model/ModelRegistry.php
@@ -100,7 +100,11 @@ final class ModelRegistry
                 }
 
                 if (null === $schema) {
-                    throw new \LogicException(sprintf('Schema of type "%s" can\'t be generated, no describer supports it.', $this->typeToString($model->getType())));
+                    $errorMessage = sprintf('Schema of type "%s" can\'t be generated, no describer supports it.', $this->typeToString($model->getType()));
+                    if (Type::BUILTIN_TYPE_OBJECT === $model->getType()->getBuiltinType() && !class_exists($className = $model->getType()->getClassName())) {
+                        $errorMessage .= sprintf(' Class "\\%s" does not exist, did you forget a use statement, or typed it wrong?', $className);
+                    }
+                    throw new \LogicException($errorMessage);
                 }
             }
         }
@@ -174,7 +178,7 @@ final class ModelRegistry
     private function typeToString(Type $type): string
     {
         if (Type::BUILTIN_TYPE_OBJECT === $type->getBuiltinType()) {
-            return $type->getClassName();
+            return '\\'.$type->getClassName();
         } elseif ($type->isCollection()) {
             if (null !== $collectionType = $this->getCollectionValueType($type)) {
                 return $this->typeToString($collectionType).'[]';
diff --git a/ModelDescriber/Annotations/AnnotationsReader.php b/ModelDescriber/Annotations/AnnotationsReader.php
index 3fbcbfb..85f496d 100644
--- a/ModelDescriber/Annotations/AnnotationsReader.php
+++ b/ModelDescriber/Annotations/AnnotationsReader.php
@@ -14,6 +14,7 @@ namespace Nelmio\ApiDocBundle\ModelDescriber\Annotations;
 use Doctrine\Common\Annotations\Reader;
 use Nelmio\ApiDocBundle\Model\ModelRegistry;
 use OpenApi\Annotations as OA;
+use OpenApi\Generator;
 
 /**
  * @internal
@@ -44,10 +45,14 @@ class AnnotationsReader
         );
     }
 
-    public function updateDefinition(\ReflectionClass $reflectionClass, OA\Schema $schema): void
+    public function updateDefinition(\ReflectionClass $reflectionClass, OA\Schema $schema): UpdateClassDefinitionResult
     {
         $this->openApiAnnotationsReader->updateSchema($reflectionClass, $schema);
         $this->symfonyConstraintAnnotationReader->setSchema($schema);
+
+        return new UpdateClassDefinitionResult(
+            $this->shouldDescribeModelProperties($schema)
+        );
     }
 
     public function getPropertyName($reflection, string $default): string
@@ -61,4 +66,15 @@ class AnnotationsReader
         $this->phpDocReader->updateProperty($reflection, $property);
         $this->symfonyConstraintAnnotationReader->updateProperty($reflection, $property, $serializationGroups);
     }
+
+    /**
+     * if an objects schema type and ref are undefined OR the object was manually
+     * defined as an object, then we're good to do the normal describe flow of
+     * class properties.
+     */
+    private function shouldDescribeModelProperties(OA\Schema $schema): bool
+    {
+        return (Generator::UNDEFINED === $schema->type || 'object' === $schema->type)
+            && Generator::UNDEFINED === $schema->ref;
+    }
 }
diff --git a/ModelDescriber/Annotations/UpdateClassDefinitionResult.php b/ModelDescriber/Annotations/UpdateClassDefinitionResult.php
new file mode 100644
index 0000000..3a3945c
--- /dev/null
+++ b/ModelDescriber/Annotations/UpdateClassDefinitionResult.php
@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\ModelDescriber\Annotations;
+
+/**
+ * result object returned from `AnnotationReader::updateDefinition` as a way
+ * to pass back information about manually defined schema elements.
+ *
+ * @internal
+ */
+final class UpdateClassDefinitionResult
+{
+    /**
+     * Whether or not the model describer shoudl continue reading class properties
+     * after updating the open api schema from an `OA\Schema` definition.
+     *
+     * Users may maually define a `type` or `ref` on a schema, and if that's the case
+     * model describers should _probably_ not describe any additional properties or try
+     * to merge in properties.
+     */
+    private $shouldDescribeModelProperties;
+
+    public function __construct(bool $shouldDescribeModelProperties)
+    {
+        $this->shouldDescribeModelProperties = $shouldDescribeModelProperties;
+    }
+
+    public function shouldDescribeModelProperties(): bool
+    {
+        return $this->shouldDescribeModelProperties;
+    }
+}
diff --git a/ModelDescriber/EnumModelDescriber.php b/ModelDescriber/EnumModelDescriber.php
new file mode 100644
index 0000000..41fba6e
--- /dev/null
+++ b/ModelDescriber/EnumModelDescriber.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Nelmio\ApiDocBundle\ModelDescriber;
+
+use Nelmio\ApiDocBundle\Model\Model;
+use OpenApi\Annotations\Schema;
+use Symfony\Component\PropertyInfo\Type;
+
+class EnumModelDescriber implements ModelDescriberInterface
+{
+    public function describe(Model $model, Schema $schema)
+    {
+        $enumClass = $model->getType()->getClassName();
+
+        $enums = [];
+        foreach ($enumClass::cases() as $enumCase) {
+            $enums[] = $enumCase->value;
+        }
+
+        $schema->type = is_subclass_of($enumClass, \IntBackedEnum::class) ? 'int' : 'string';
+        $schema->enum = $enums;
+    }
+
+    public function supports(Model $model): bool
+    {
+        if (!function_exists('enum_exists')) {
+            return false;
+        }
+
+        return Type::BUILTIN_TYPE_OBJECT === $model->getType()->getBuiltinType()
+            && enum_exists($model->getType()->getClassName())
+            && is_subclass_of($model->getType()->getClassName(), \BackedEnum::class);
+    }
+}
diff --git a/ModelDescriber/FormModelDescriber.php b/ModelDescriber/FormModelDescriber.php
index 370f8a6..587b3a1 100644
--- a/ModelDescriber/FormModelDescriber.php
+++ b/ModelDescriber/FormModelDescriber.php
@@ -69,8 +69,6 @@ final class FormModelDescriber implements ModelDescriberInterface, ModelRegistry
             throw new \LogicException('You need to enable forms in your application to use a form as a model.');
         }
 
-        $schema->type = 'object';
-
         $class = $model->getType()->getClassName();
 
         $annotationsReader = new AnnotationsReader(
@@ -79,7 +77,13 @@ final class FormModelDescriber implements ModelDescriberInterface, ModelRegistry
             $this->mediaTypes,
             $this->useValidationGroups
         );
-        $annotationsReader->updateDefinition(new \ReflectionClass($class), $schema);
+        $classResult = $annotationsReader->updateDefinition(new \ReflectionClass($class), $schema);
+
+        if (!$classResult->shouldDescribeModelProperties()) {
+            return;
+        }
+
+        $schema->type = 'object';
 
         $form = $this->formFactory->create($class, null, $model->getOptions() ?? []);
         $this->parseForm($schema, $form);
diff --git a/ModelDescriber/JMSModelDescriber.php b/ModelDescriber/JMSModelDescriber.php
index 9dc2c4e..fd59df7 100644
--- a/ModelDescriber/JMSModelDescriber.php
+++ b/ModelDescriber/JMSModelDescriber.php
@@ -80,14 +80,18 @@ class JMSModelDescriber implements ModelDescriberInterface, ModelRegistryAwareIn
             throw new \InvalidArgumentException(sprintf('No metadata found for class %s.', $className));
         }
 
-        $schema->type = 'object';
         $annotationsReader = new AnnotationsReader(
             $this->doctrineReader,
             $this->modelRegistry,
             $this->mediaTypes,
             $this->useValidationGroups
         );
-        $annotationsReader->updateDefinition(new \ReflectionClass($className), $schema);
+        $classResult = $annotationsReader->updateDefinition(new \ReflectionClass($className), $schema);
+
+        if (!$classResult->shouldDescribeModelProperties()) {
+            return;
+        }
+        $schema->type = 'object';
 
         $isJmsV1 = null !== $this->namingStrategy;
 
diff --git a/ModelDescriber/ObjectModelDescriber.php b/ModelDescriber/ObjectModelDescriber.php
index 55c8115..925ea5c 100644
--- a/ModelDescriber/ObjectModelDescriber.php
+++ b/ModelDescriber/ObjectModelDescriber.php
@@ -62,8 +62,6 @@ class ObjectModelDescriber implements ModelDescriberInterface, ModelRegistryAwar
 
     public function describe(Model $model, OA\Schema $schema)
     {
-        $schema->type = 'object';
-
         $class = $model->getType()->getClassName();
         $schema->_context->class = $class;
 
@@ -79,7 +77,13 @@ class ObjectModelDescriber implements ModelDescriberInterface, ModelRegistryAwar
             $this->mediaTypes,
             $this->useValidationGroups
         );
-        $annotationsReader->updateDefinition($reflClass, $schema);
+        $classResult = $annotationsReader->updateDefinition($reflClass, $schema);
+
+        if (!$classResult->shouldDescribeModelProperties()) {
+            return;
+        }
+
+        $schema->type = 'object';
 
         $discriminatorMap = $this->getAnnotation($reflClass, DiscriminatorMap::class);
         if ($discriminatorMap && Generator::UNDEFINED === $schema->discriminator) {
diff --git a/Resources/config/services.xml b/Resources/config/services.xml
index bfc845c..b107302 100644
--- a/Resources/config/services.xml
+++ b/Resources/config/services.xml
@@ -80,6 +80,10 @@
             <tag name="nelmio_api_doc.model_describer" />
         </service>
 
+        <service id="nelmio_api_doc.model_describers.enum" class="Nelmio\ApiDocBundle\ModelDescriber\EnumModelDescriber" public="false">
+            <tag name="nelmio_api_doc.model_describer" priority="100"/>
+        </service>
+
         <service id="nelmio_api_doc.model_describers.object_fallback" class="Nelmio\ApiDocBundle\ModelDescriber\FallbackObjectModelDescriber" public="false">
             <tag name="nelmio_api_doc.model_describer" priority="-1000" />
         </service>
diff --git a/Resources/doc/areas.rst b/Resources/doc/areas.rst
index da2e43c..e1f0f08 100644
--- a/Resources/doc/areas.rst
+++ b/Resources/doc/areas.rst
@@ -32,6 +32,7 @@ You can define areas which will each generates a different documentation:
             store:
                 # Includes routes with names containing 'store'
                 name_patterns: [ store ]
+            
 
 Your main documentation is under the ``default`` area. It's the one shown when accessing ``/api/doc``.
 
@@ -52,3 +53,38 @@ Then update your routing to be able to access your different documentations:
     #    defaults: { _controller: nelmio_api_doc.controller.swagger }
 
 That's all! You can now access ``/api/doc/internal``, ``/api/doc/commercial`` and ``/api/doc/store``.
+
+Use annotations to filter documented routes in each area
+--------------------------------------------------------
+
+You can use the `@Areas` annotation inside your controllers to define your routes' areas.
+
+First, you need to define which areas will use the`@Areas` annotations to filter 
+the routes that should be documented:
+
+.. code-block:: yaml
+
+    nelmio_api_doc:
+        areas:
+            default:
+                path_patterns: [ ^/api ]
+            internal:
+                with_annotations: true
+                
+Then add the annotation before your controller or action::
+
+    use Nelmio\Annotations as Nelmio;
+
+    /**
+     * @Nelmio\Areas({"internal"}) => All actions in this controller are documented under the 'internal' area
+     */
+    class MyController
+    {
+        /**
+         * @Nelmio\Areas({"internal"}) => This action is documented under the 'internal' area
+         */
+        public function index()
+        {
+           ...
+        }
+    }
diff --git a/Resources/doc/commands.rst b/Resources/doc/commands.rst
index 839a122..67ab295 100644
--- a/Resources/doc/commands.rst
+++ b/Resources/doc/commands.rst
@@ -5,7 +5,7 @@ A command is provided in order to dump the documentation in ``json``, ``yaml`` o
 
 .. code-block:: bash
 
-    $ php app/console api:doc:dump [--format="..."]
+    $ php app/console nelmio:apidoc:dump [--format="..."]
 
 The ``--format`` option allows to choose the format (default is: ``json``).
 
@@ -14,20 +14,20 @@ without whitespace, use the ``--no-pretty`` option.
 
 .. code-block:: bash
 
-    $ php app/console api:doc:dump --format=json > json-pretty-formatted.json
-    $ php app/console api:doc:dump --format=json --no-pretty > json-no-pretty.json
+    $ php app/console nelmio:apidoc:dump --format=json > json-pretty-formatted.json
+    $ php app/console nelmio:apidoc:dump --format=json --no-pretty > json-no-pretty.json
 
 Every format can override API url. Useful if static documentation is not hosted on API url:
 
 .. code-block:: bash
 
-    $ php app/console api:doc:dump --format=yaml --server-url "http://example.com/api" > api.yaml
+    $ php app/console nelmio:apidoc:dump --format=yaml --server-url "http://example.com/api" > api.yaml
 
 For example to generate a static version of your documentation you can use:
 
 .. code-block:: bash
 
-    $ php app/console api:doc:dump --format=html > api.html
+    $ php app/console nelmio:apidoc:dump --format=html > api.html
 
 By default, the generated HTML will add the sandbox feature.
 If you want to generate a static version of your documentation without sandbox,
@@ -40,6 +40,6 @@ or configure UI configuration, use the ``--html-config`` option.
 
 .. code-block:: bash
 
-    $ php app/console api:doc:dump --format=html --html-config '{"assets_mode":"offline","server_url":"https://example.com","swagger_ui_config":{"supportedSubmitMethods":[]}}' > api.html
+    $ php app/console nelmio:apidoc:dump --format=html --html-config '{"assets_mode":"offline","server_url":"https://example.com","swagger_ui_config":{"supportedSubmitMethods":[]}}' > api.html
 
 .. _`configure Swagger UI`: https://swagger.io/docs/open-source-tools/swagger-ui/usage/configuration/
diff --git a/Resources/doc/faq.rst b/Resources/doc/faq.rst
index 6398a41..439dfb5 100644
--- a/Resources/doc/faq.rst
+++ b/Resources/doc/faq.rst
@@ -210,3 +210,30 @@ A: Use ``disable_default_routes`` config in your area.
         areas:
             default:
                 disable_default_routes: true
+
+Overriding a Form or Plain PHP Object Schema Type
+-------------------------------------------------
+
+Q: I'd like to define a PHP object or form with a type other any ``object``, how
+do I do that?
+
+A: By using the ``@OA\Schema`` annotation or attribute with a ``type`` or ``ref``.
+Note, however, that a ``type="object"`` will still read all a models properties.
+
+.. code-block:: php
+
+    <?php
+    use OpenApi\Annotations as OA;
+    use Nelmio\ApiDocBundle\Annotation\Model;
+
+    /**
+     * @OA\Schema(type="array", @OA\Items(ref=@Model(type=SomeEntity::class)))
+     *
+     * or define a `ref`:
+     * @OA\Schema(ref="#/components/schemas/SomeRef")
+     */
+    class SomeCollection implements \IteratorAggregate
+    {
+        // ...
+    }
+
diff --git a/Resources/doc/index.rst b/Resources/doc/index.rst
index ca7c633..6bc43bd 100644
--- a/Resources/doc/index.rst
+++ b/Resources/doc/index.rst
@@ -17,6 +17,8 @@ This bundle supports *Symfony* route requirements, PHP annotations, `Swagger-Php
 For models, it supports the `Symfony serializer`_ , the `JMS serializer`_ and the `willdurand/Hateoas`_ library.
 It does also support `Symfony form`_ types.
 
+Attributes are supported from version 4.7 and PHP 8.1.
+
 Migrate from 3.x to 4.0
 -----------------------
 
@@ -99,7 +101,7 @@ Using the bundle
 ----------------
 
 You can configure global information in the bundle configuration ``documentation.info`` section (take a look at
-`the OpenAPI 3.0 specification (formerly Swagger)`_ to know the available fields):
+`the OpenAPI 3.0 specification (formerly Swagger)`_ to know the available fields). 
 
 .. code-block:: yaml
 
@@ -127,53 +129,110 @@ You can configure global information in the bundle configuration ``documentation
 
 .. note::
 
-    If you're using Flex, this config is there by default. Don't forget to adapt it to your app!
+    If you're using Flex, this config is there by default under ``config/packages/nelmio_api_doc.yaml``. Don't forget to adapt it to your app!
+
+.. tip::
+
+    This configuration field can more generally be used to store your documentation as yaml. 
+    You may find in the ``.yaml`` files from `SwaggerPHP examples`_. 
 
 To document your routes, you can use the SwaggerPHP annotations and the
 ``Nelmio\ApiDocBundle\Annotation\Model`` annotation in your controllers::
 
-    namespace AppBundle\Controller;
+.. configuration-block::
 
-    use AppBundle\Entity\User;
-    use AppBundle\Entity\Reward;
-    use Nelmio\ApiDocBundle\Annotation\Model;
-    use Nelmio\ApiDocBundle\Annotation\Security;
-    use OpenApi\Annotations as OA;
-    use Symfony\Component\Routing\Annotation\Route;
+    .. code-block:: php-annotations
+    
+        namespace AppBundle\Controller;
 
-    class UserController
-    {
-        /**
-         * List the rewards of the specified user.
-         *
-         * This call takes into account all confirmed awards, but not pending or refused awards.
-         *
-         * @Route("/api/{user}/rewards", methods={"GET"})
-         * @OA\Response(
-         *     response=200,
-         *     description="Returns the rewards of an user",
-         *     @OA\JsonContent(
-         *        type="array",
-         *        @OA\Items(ref=@Model(type=Reward::class, groups={"full"}))
-         *     )
-         * )
-         * @OA\Parameter(
-         *     name="order",
-         *     in="query",
-         *     description="The field used to order rewards",
-         *     @OA\Schema(type="string")
-         * )
-         * @OA\Tag(name="rewards")
-         * @Security(name="Bearer")
-         */
-        public function fetchUserRewardsAction(User $user)
+        use AppBundle\Entity\User;
+        use AppBundle\Entity\Reward;
+        use Nelmio\ApiDocBundle\Annotation\Model;
+        use Nelmio\ApiDocBundle\Annotation\Security;
+        use OpenApi\Annotations as OA;
+        use Symfony\Component\Routing\Annotation\Route;
+
+        class UserController
         {
-            // ...
+            /**
+             * List the rewards of the specified user.
+             *
+             * This call takes into account all confirmed awards, but not pending or refused awards.
+             *
+             * @Route("/api/{user}/rewards", methods={"GET"})
+             * @OA\Response(
+             *     response=200,
+             *     description="Returns the rewards of an user",
+             *     @OA\JsonContent(
+             *        type="array",
+             *        @OA\Items(ref=@Model(type=Reward::class, groups={"full"}))
+             *     )
+             * )
+             * @OA\Parameter(
+             *     name="order",
+             *     in="query",
+             *     description="The field used to order rewards",
+             *     @OA\Schema(type="string")
+             * )
+             * @OA\Tag(name="rewards")
+             * @Security(name="Bearer")
+             */
+            public function fetchUserRewardsAction(User $user)
+            {
+                // ...
+            }
         }
-    }
+    
+    .. code-block:: php-attributes
+    
+        namespace AppBundle\Controller;
+
+        use AppBundle\Entity\User;
+        use AppBundle\Entity\Reward;
+        use Nelmio\ApiDocBundle\Annotation\Model;
+        use Nelmio\ApiDocBundle\Annotation\Security;
+        use OpenApi\Attributes as OA;
+        use Symfony\Component\Routing\Annotation\Route;
+
+        class UserController
+        {
+            /**
+             * List the rewards of the specified user.
+             *
+             * This call takes into account all confirmed awards, but not pending or refused awards.
+             */
+            #[Route('/api/{user}/rewards', methods=['GET'])]
+            #[OA\Response(
+                response: 200,
+                description: 'Returns the rewards of an user',
+                content: new OA\JsonContent(
+                    type: 'array', 
+                    items: new OA\Items(ref: new Model(type: AlbumDto::class, groups: ['full']))
+                )
+            )]
+            #[OA\Parameter(
+                name: 'order',
+                in: 'query',
+                description: 'The field used to order rewards',
+                schema: new OA\Schema(type: 'string')
+            )]
+            #[OA\Tag(name: 'rewards')]
+            #[Security(name: 'Bearer')]
+            public function fetchUserRewardsAction(User $user)
+            {
+                // ...
+            }
+        }
+    
 
 The normal PHPdoc block on the controller method is used for the summary and description.
 
+.. tip::
+
+    Examples of using the annotations can be found in `SwaggerPHP examples`_.
+    However, unlike in those examples, when using this bundle you don't need to specify paths and you can easily document models as well as some
+    other properties described below as they can be automatically be documented using the Symfony integration. 
+
 Use models
 ----------
 
@@ -188,23 +247,48 @@ This annotation has two options:
 
 * ``type`` to specify your model's type::
 
-    /**
-     * @OA\Response(
-     *     response=200,
-     *     @Model(type=User::class)
-     * )
-     */
+.. configuration-block::
+
+    .. code-block:: php-annotations
+    
+        /**
+         * @OA\Response(
+         *     response=200,
+         *     @Model(type=User::class)
+         * )
+         */
+
+    .. code-block:: php-attributes
+    
+        #[OA\Response(
+            response: 200,
+            description: 'Successful response',
+            content: new Model(type: User::class)
+        )]
 
 * ``groups`` to specify the serialization groups used to (de)serialize your model::
 
-     /**
-     * @OA\Response(
-     *     response=200,
-     *     @Model(type=User::class, groups={"non_sensitive_data"})
-     * )
-     */
 
- .. tip::
+.. configuration-block::
+
+    .. code-block:: php-annotations
+
+         /**
+         * @OA\Response(
+         *     response=200,
+         *     @Model(type=User::class, groups={"non_sensitive_data"})
+         * )
+         */
+
+    .. code-block:: php-attributes
+    
+        #[OA\Response(
+            response: 200,
+            description: 'Successful response',
+            content: new Model(type: User::class, groups: ['non_sensitive_data'])
+        )]
+
+.. tip::
 
      When used at the root of ``@OA\Response`` and ``@OA\Parameter``, ``@Model`` is automatically nested
      in a ``@OA\Schema``.
@@ -213,6 +297,10 @@ This annotation has two options:
 
      To use ``@Model`` directly within a ``@OA\Schema``, ``@OA\Items`` or ``@OA\Property``, you have to use the ``$ref`` field::
 
+.. configuration-block::
+
+    .. code-block:: php-annotations
+
          /**
           * @OA\Response(
           *     @OA\JsonContent(ref=@Model(type=User::class))
@@ -227,6 +315,23 @@ This annotation has two options:
           * ))
           */
 
+    .. code-block:: php-attributes
+
+        #[OA\Response(
+            content: new OA\JsonContent(ref: new Model(type: User::class))
+        )]
+         /**
+          * or
+          */
+        #[OA\Response(
+            content: new OA\XmlContent(example: new OA\Schema(
+                type: 'object',
+                properties: [
+                    new OA\Property(property: 'foo', ref: new Model(type: FooClass::class))
+                ]
+            ))
+        )]
+
 Symfony Form types
 ~~~~~~~~~~~~~~~~~~
 
@@ -277,7 +382,15 @@ General PHP objects
 
     .. code-block:: php
 
-       @OA\Schema(ref=@Model(type="App\Response\ItemResponse", groups=["Default"])),
+        .. configuration-block::
+
+            .. code-block:: php-annotations
+
+                @OA\Schema(ref=@Model(type="App\Response\ItemResponse", groups=["Default"])),
+
+            .. code-block:: php-attributes
+
+                #[OA\Schema(ref: new Model(type: App\Response\ItemResponse::class, groups: ['Default']))]
 
     It will generate two different component schemas (ItemResponse, ItemResponse2), even though Default and blank are the same. This is by design.
 
@@ -295,34 +408,64 @@ General PHP objects
 
 If you want to customize the documentation of an object's property, you can use ``@OA\Property``::
 
-    use Nelmio\ApiDocBundle\Annotation\Model;
-    use OpenApi\Annotations as OA;
 
-    class User
-    {
-        /**
-         * @var int
-         * @OA\Property(description="The unique identifier of the user.")
-         */
-        public $id;
+.. configuration-block::
 
-        /**
-         * @OA\Property(type="string", maxLength=255)
-         */
-        public $username;
+    .. code-block:: php-annotations
+            
+        use Nelmio\ApiDocBundle\Annotation\Model;
+        use OpenApi\Annotations as OA;
 
-        /**
-         * @OA\Property(ref=@Model(type=User::class))
-         */
-        public $friend;
+        class User
+        {
+            /**
+             * @var int
+             * @OA\Property(description="The unique identifier of the user.")
+             */
+            public $id;
 
-        /**
-         * @OA\Property(description="This is my coworker!")
-         */
-        public setCoworker(User $coworker) {
-            // ...
+            /**
+             * @OA\Property(type="string", maxLength=255)
+             */
+            public $username;
+
+            /**
+             * @OA\Property(ref=@Model(type=User::class))
+             */
+            public $friend;
+
+            /**
+             * @OA\Property(description="This is my coworker!")
+             */
+            public setCoworker(User $coworker) {
+                // ...
+            }
+        }
+
+    .. code-block:: php-attributes
+            
+        use Nelmio\ApiDocBundle\Annotation\Model;
+        use OpenApi\Attributes as OA;
+
+        class User
+        {
+            /**
+             * @var int
+             */
+            #[OA\Property(description: 'The unique identifier of the user.')]
+            public $id;
+
+            #[OA\Property(type: 'string', maxLength: 255)]
+            public $username;
+
+            #[OA\Property(ref: new Model(type: User::class))]
+            public $friend;
+
+            #[OA\Property(description: 'This is my coworker!')]
+            public setCoworker(User $coworker) {
+                // ...
+            }
         }
-    }
 
 See the `OpenAPI 3.0 specification`__ to see all the available fields of ``@OA\Property``.
 
@@ -343,6 +486,7 @@ If you need more complex features, take a look at:
     faq
     security
 
+.. _`SwaggerPHP examples`: https://github.com/zircote/swagger-php/tree/master/Examples
 .. _`Symfony PropertyInfo component`: https://symfony.com/doc/current/components/property_info.html
 .. _`willdurand/Hateoas`: https://github.com/willdurand/Hateoas
 .. _`BazingaHateoasBundle`: https://github.com/willdurand/BazingaHateoasBundle
diff --git a/Tests/Functional/Controller/ApiController80.php b/Tests/Functional/Controller/ApiController80.php
index dfbccac..0a8c795 100644
--- a/Tests/Functional/Controller/ApiController80.php
+++ b/Tests/Functional/Controller/ApiController80.php
@@ -17,11 +17,16 @@ use Nelmio\ApiDocBundle\Annotation\Operation;
 use Nelmio\ApiDocBundle\Annotation\Security;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\Article;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\CompoundEntity;
+use Nelmio\ApiDocBundle\Tests\Functional\Entity\EntityWithAlternateType;
+use Nelmio\ApiDocBundle\Tests\Functional\Entity\EntityWithObjectType;
+use Nelmio\ApiDocBundle\Tests\Functional\Entity\EntityWithRef;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\SymfonyConstraints;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\SymfonyConstraintsWithValidationGroups;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\SymfonyDiscriminator;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\User;
 use Nelmio\ApiDocBundle\Tests\Functional\Form\DummyType;
+use Nelmio\ApiDocBundle\Tests\Functional\Form\FormWithAlternateSchemaType;
+use Nelmio\ApiDocBundle\Tests\Functional\Form\FormWithRefType;
 use Nelmio\ApiDocBundle\Tests\Functional\Form\UserType;
 use OpenApi\Annotations as OA;
 use Symfony\Component\Routing\Annotation\Route;
@@ -272,4 +277,68 @@ class ApiController80
     public function symfonyConstraintsWithGroupsAction()
     {
     }
+
+    /**
+     * @Route("/alternate-entity-type", methods={"GET", "POST"})
+     *
+     * @OA\Get(operationId="alternate-entity-type")
+     * @OA\Response(response=200, description="success", @OA\JsonContent(
+     *      ref=@Model(type=EntityWithAlternateType::class),
+     * ))
+     */
+    public function alternateEntityType()
+    {
+    }
+
+    /**
+     * @Route("/entity-with-ref", methods={"GET", "POST"})
+     *
+     * @OA\Get(operationId="entity-with-ref")
+     * @OA\Response(response=200, description="success", @OA\JsonContent(
+     *      ref=@Model(type=EntityWithRef::class),
+     * ))
+     */
+    public function entityWithRef()
+    {
+    }
+
+    /**
+     * @Route("/entity-with-object-type", methods={"GET", "POST"})
+     *
+     * @OA\Get(operationId="entity-with-object-type")
+     * @OA\Response(response=200, description="success", @OA\JsonContent(
+     *      ref=@Model(type=EntityWithObjectType::class),
+     * ))
+     */
+    public function entityWithObjectType()
+    {
+    }
+
+    /**
+     * @Route("/form-with-alternate-type", methods={"POST"})
+     * @OA\Response(
+     *    response="204",
+     *    description="Operation automatically detected",
+     * ),
+     * @OA\RequestBody(
+     *    @Model(type=FormWithAlternateSchemaType::class))
+     * )
+     */
+    public function formWithAlternateSchemaType()
+    {
+    }
+
+    /**
+     * @Route("/form-with-ref-type", methods={"POST"})
+     * @OA\Response(
+     *    response="204",
+     *    description="Operation automatically detected",
+     * ),
+     * @OA\RequestBody(
+     *    @Model(type=FormWithRefType::class))
+     * )
+     */
+    public function formWithRefSchemaType()
+    {
+    }
 }
diff --git a/Tests/Functional/Controller/ApiController81.php b/Tests/Functional/Controller/ApiController81.php
index 71f3629..b12f5cd 100644
--- a/Tests/Functional/Controller/ApiController81.php
+++ b/Tests/Functional/Controller/ApiController81.php
@@ -15,6 +15,7 @@ use Nelmio\ApiDocBundle\Annotation\Areas;
 use Nelmio\ApiDocBundle\Annotation\Model;
 use Nelmio\ApiDocBundle\Annotation\Security;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\Article;
+use Nelmio\ApiDocBundle\Tests\Functional\Entity\Article81;
 use OpenApi\Attributes as OA;
 use Symfony\Component\Routing\Annotation\Route;
 
@@ -65,4 +66,10 @@ class ApiController81 extends ApiController80
         #[OA\PathParameter] string $product_id
     ) {
     }
+
+    #[Route('/enum')]
+    #[OA\Response(response: '201', description: '', attachables: [new Model(type: Article81::class)])]
+    public function enum()
+    {
+    }
 }
diff --git a/Tests/Functional/Entity/Article81.php b/Tests/Functional/Entity/Article81.php
new file mode 100644
index 0000000..3904801
--- /dev/null
+++ b/Tests/Functional/Entity/Article81.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace Nelmio\ApiDocBundle\Tests\Functional\Entity;
+
+class Article81
+{
+    public function __construct(
+        public readonly int $id,
+        public readonly ArticleType81 $type,
+    ) {
+    }
+}
diff --git a/Tests/Functional/Entity/ArticleType81.php b/Tests/Functional/Entity/ArticleType81.php
new file mode 100644
index 0000000..fcdc248
--- /dev/null
+++ b/Tests/Functional/Entity/ArticleType81.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Nelmio\ApiDocBundle\Tests\Functional\Entity;
+
+enum ArticleType81: string
+{
+    case DRAFT = 'draft';
+    case FINAL = 'final';
+}
diff --git a/Tests/Functional/Entity/EntityWithAlternateType.php b/Tests/Functional/Entity/EntityWithAlternateType.php
new file mode 100644
index 0000000..1b9538c
--- /dev/null
+++ b/Tests/Functional/Entity/EntityWithAlternateType.php
@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\Tests\Functional\Entity;
+
+use ArrayIterator;
+use IteratorAggregate;
+use OpenApi\Annotations as OA;
+
+/**
+ * @OA\Schema(type="array", @OA\Items(type="string"))
+ */
+class EntityWithAlternateType implements IteratorAggregate
+{
+    /**
+     * @var string
+     */
+    public $ignored = 'this property should be ignored because of the annotation above';
+
+    public function getIterator(): ArrayIterator
+    {
+        return new ArrayIterator([
+            'abc',
+            'def',
+        ]);
+    }
+}
diff --git a/Tests/Functional/Entity/EntityWithObjectType.php b/Tests/Functional/Entity/EntityWithObjectType.php
new file mode 100644
index 0000000..ba0415c
--- /dev/null
+++ b/Tests/Functional/Entity/EntityWithObjectType.php
@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\Tests\Functional\Entity;
+
+use OpenApi\Annotations as OA;
+
+/**
+ * @OA\Schema(type="object")
+ */
+class EntityWithObjectType
+{
+    /**
+     * @var string
+     */
+    public $notIgnored = 'this should be read';
+}
diff --git a/Tests/Functional/Entity/EntityWithRef.php b/Tests/Functional/Entity/EntityWithRef.php
new file mode 100644
index 0000000..f149bfb
--- /dev/null
+++ b/Tests/Functional/Entity/EntityWithRef.php
@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\Tests\Functional\Entity;
+
+use OpenApi\Annotations as OA;
+
+/**
+ * @OA\Schema(ref="#/components/schemas/Test")
+ */
+class EntityWithRef
+{
+    /**
+     * @var string
+     */
+    public $ignored = 'this property should be ignored because of the annotation above';
+}
diff --git a/Tests/Functional/Form/FormWithAlternateSchemaType.php b/Tests/Functional/Form/FormWithAlternateSchemaType.php
new file mode 100644
index 0000000..68f1e5d
--- /dev/null
+++ b/Tests/Functional/Form/FormWithAlternateSchemaType.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\Tests\Functional\Form;
+
+use OpenApi\Annotations as OA;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\InputType;
+use Symfony\Component\Form\FormBuilderInterface;
+
+/**
+ * @OA\Schema(type="string")
+ */
+class FormWithAlternateSchemaType extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $builder
+            ->add('ignored', InputType::class, [
+                'required' => false,
+            ]);
+    }
+}
diff --git a/Tests/Functional/Form/FormWithRefType.php b/Tests/Functional/Form/FormWithRefType.php
new file mode 100644
index 0000000..7904230
--- /dev/null
+++ b/Tests/Functional/Form/FormWithRefType.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\Tests\Functional\Form;
+
+use OpenApi\Annotations as OA;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\Extension\Core\Type\InputType;
+use Symfony\Component\Form\FormBuilderInterface;
+
+/**
+ * @OA\Schema(ref="#/components/schemas/Test")
+ */
+class FormWithRefType extends AbstractType
+{
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $builder
+            ->add('ignored', InputType::class, [
+                'required' => false,
+            ]);
+    }
+}
diff --git a/Tests/Functional/FunctionalTest.php b/Tests/Functional/FunctionalTest.php
index 8d53598..38afb94 100644
--- a/Tests/Functional/FunctionalTest.php
+++ b/Tests/Functional/FunctionalTest.php
@@ -624,4 +624,60 @@ class FunctionalTest extends WebTestCase
 
         $this->assertFalse($model->additionalProperties);
     }
+
+    /**
+     * @requires PHP >= 8.1
+     */
+    public function testEnumSupport()
+    {
+        $model = $this->getModel('ArticleType81');
+
+        $this->assertSame('string', $model->type);
+        $this->assertCount(2, $model->enum);
+    }
+
+    public function testEntitiesWithOverriddenSchemaTypeDoNotReadOtherProperties()
+    {
+        $model = $this->getModel('EntityWithAlternateType');
+
+        $this->assertSame('array', $model->type);
+        $this->assertSame('string', $model->items->type);
+        $this->assertSame(Generator::UNDEFINED, $model->properties);
+    }
+
+    public function testEntitiesWithRefInSchemaDoNoReadOtherProperties()
+    {
+        $model = $this->getModel('EntityWithRef');
+
+        $this->assertSame(Generator::UNDEFINED, $model->type);
+        $this->assertSame('#/components/schemas/Test', $model->ref);
+        $this->assertSame(Generator::UNDEFINED, $model->properties);
+    }
+
+    public function testEntitiesWithObjectTypeStillReadProperties()
+    {
+        $model = $this->getModel('EntityWithObjectType');
+
+        $this->assertSame('object', $model->type);
+        $this->assertCount(1, $model->properties);
+        $property = Util::getProperty($model, 'notIgnored');
+        $this->assertSame('string', $property->type);
+    }
+
+    public function testFormsWithOverriddenSchemaTypeDoNotReadOtherProperties()
+    {
+        $model = $this->getModel('FormWithAlternateSchemaType');
+
+        $this->assertSame('string', $model->type);
+        $this->assertSame(Generator::UNDEFINED, $model->properties);
+    }
+
+    public function testFormWithRefInSchemaDoNoReadOtherProperties()
+    {
+        $model = $this->getModel('FormWithRefType');
+
+        $this->assertSame(Generator::UNDEFINED, $model->type);
+        $this->assertSame('#/components/schemas/Test', $model->ref);
+        $this->assertSame(Generator::UNDEFINED, $model->properties);
+    }
 }
diff --git a/Tests/Model/ModelRegistryTest.php b/Tests/Model/ModelRegistryTest.php
index ef7fd85..fdbbc36 100644
--- a/Tests/Model/ModelRegistryTest.php
+++ b/Tests/Model/ModelRegistryTest.php
@@ -234,7 +234,20 @@ class ModelRegistryTest extends TestCase
     {
         return [
             [new Type(Type::BUILTIN_TYPE_ARRAY, false, null, true), 'mixed[]'],
-            [new Type(Type::BUILTIN_TYPE_OBJECT, false, self::class), self::class],
+            [new Type(Type::BUILTIN_TYPE_OBJECT, false, self::class), '\\'.self::class],
         ];
     }
+
+    public function testUnsupportedTypeExceptionWithNonExistentClass()
+    {
+        $className = DoesNotExist::class;
+        $type = new Type(Type::BUILTIN_TYPE_OBJECT, false, $className);
+
+        $this->expectException('\LogicException');
+        $this->expectExceptionMessage(sprintf('Schema of type "\%s" can\'t be generated, no describer supports it. Class "\Nelmio\ApiDocBundle\Tests\Model\DoesNotExist" does not exist, did you forget a use statement, or typed it wrong?', $className));
+
+        $registry = new ModelRegistry([], new OA\OpenApi([]));
+        $registry->register(new Model($type));
+        $registry->registerSchemas();
+    }
 }
diff --git a/composer.json b/composer.json
index d69570a..0d12f33 100644
--- a/composer.json
+++ b/composer.json
@@ -48,7 +48,7 @@
         "symfony/twig-bundle": "^4.4|^5.2|^6.0",
         "symfony/validator": "^4.4|^5.2|^6.0",
 
-        "api-platform/core": "^2.4",
+        "api-platform/core": "^2.6.8",
         "friendsofsymfony/rest-bundle": "^2.8|^3.0",
         "willdurand/hateoas-bundle": "^1.0|^2.0",
         "jms/serializer-bundle": "^2.3|^3.0|^4.0",