diff --git a/implementations/php/composer.json b/implementations/php/composer.json
index d16fa75dc..7593bca1f 100644
--- a/implementations/php/composer.json
+++ b/implementations/php/composer.json
@@ -2,8 +2,8 @@
     "name": "apollo/php-implementation",
     "type": "project",
     "require": {
-        "webonyx/graphql-php": "^14.9",
-        "skillshare/apollo-federation-php": "^1.5"
+        "webonyx/graphql-php": "^14.11",
+        "skillshare/apollo-federation-php": "^1.6"
     },
     "autoload": {
         "psr-4": {
diff --git a/implementations/php/composer.lock b/implementations/php/composer.lock
index 20655443c..85cb4e147 100644
--- a/implementations/php/composer.lock
+++ b/implementations/php/composer.lock
@@ -4,20 +4,20 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "c12354097ba394904fa1842e150cd983",
+    "content-hash": "57d55804cbdc320f24d6bc24b7a3e347",
     "packages": [
         {
             "name": "skillshare/apollo-federation-php",
-            "version": "v1.5",
+            "version": "v1.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/Skillshare/apollo-federation-php.git",
-                "reference": "2b418ba9c8d641df501b44e1876e9f91a12424d3"
+                "reference": "4f958ddb683c1fceb1d162f58a5dc2957e26fe5d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/Skillshare/apollo-federation-php/zipball/2b418ba9c8d641df501b44e1876e9f91a12424d3",
-                "reference": "2b418ba9c8d641df501b44e1876e9f91a12424d3",
+                "url": "https://api.github.com/repos/Skillshare/apollo-federation-php/zipball/4f958ddb683c1fceb1d162f58a5dc2957e26fe5d",
+                "reference": "4f958ddb683c1fceb1d162f58a5dc2957e26fe5d",
                 "shasum": ""
             },
             "require": {
@@ -25,7 +25,7 @@
                 "webonyx/graphql-php": "^0.13.8 || ^14.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^8.4",
+                "phpunit/phpunit": "^9.5",
                 "psr/http-message": "^1.0",
                 "react/promise": "^2.7",
                 "spatie/phpunit-snapshot-assertions": "^4.2"
@@ -43,39 +43,39 @@
             "description": "A PHP port of the Apollo Federation specification.",
             "support": {
                 "issues": "https://github.com/Skillshare/apollo-federation-php/issues",
-                "source": "https://github.com/Skillshare/apollo-federation-php/tree/v1.5"
+                "source": "https://github.com/Skillshare/apollo-federation-php/tree/v1.6"
             },
-            "time": "2021-10-14T14:46:59+00:00"
+            "time": "2022-08-16T19:05:32+00:00"
         },
         {
             "name": "webonyx/graphql-php",
-            "version": "v14.9.0",
+            "version": "v14.11.9",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webonyx/graphql-php.git",
-                "reference": "36b83621deb5eae354347a2e86dc7aec81b32a82"
+                "reference": "ff91c9f3cf241db702e30b2c42bcc0920e70ac70"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webonyx/graphql-php/zipball/36b83621deb5eae354347a2e86dc7aec81b32a82",
-                "reference": "36b83621deb5eae354347a2e86dc7aec81b32a82",
+                "url": "https://api.github.com/repos/webonyx/graphql-php/zipball/ff91c9f3cf241db702e30b2c42bcc0920e70ac70",
+                "reference": "ff91c9f3cf241db702e30b2c42bcc0920e70ac70",
                 "shasum": ""
             },
             "require": {
                 "ext-json": "*",
                 "ext-mbstring": "*",
-                "php": "^7.1||^8.0"
+                "php": "^7.1 || ^8"
             },
             "require-dev": {
                 "amphp/amp": "^2.3",
                 "doctrine/coding-standard": "^6.0",
                 "nyholm/psr7": "^1.2",
-                "phpbench/phpbench": "^0.16.10",
+                "phpbench/phpbench": "^1.2",
                 "phpstan/extension-installer": "^1.0",
                 "phpstan/phpstan": "0.12.82",
                 "phpstan/phpstan-phpunit": "0.12.18",
                 "phpstan/phpstan-strict-rules": "0.12.9",
-                "phpunit/phpunit": "^7.2|^8.5",
+                "phpunit/phpunit": "^7.2 || ^8.5",
                 "psr/http-message": "^1.0",
                 "react/promise": "2.*",
                 "simpod/php-coveralls-mirror": "^3.0",
@@ -103,7 +103,7 @@
             ],
             "support": {
                 "issues": "https://github.com/webonyx/graphql-php/issues",
-                "source": "https://github.com/webonyx/graphql-php/tree/v14.9.0"
+                "source": "https://github.com/webonyx/graphql-php/tree/v14.11.9"
             },
             "funding": [
                 {
@@ -111,7 +111,7 @@
                     "type": "open_collective"
                 }
             ],
-            "time": "2021-06-15T16:14:17+00:00"
+            "time": "2023-01-06T12:12:50+00:00"
         }
     ],
     "packages-dev": [],
@@ -122,5 +122,5 @@
     "prefer-lowest": false,
     "platform": [],
     "platform-dev": [],
-    "plugin-api-version": "2.1.0"
+    "plugin-api-version": "2.3.0"
 }
diff --git a/implementations/php/src/Data/CaseStudy.php b/implementations/php/src/Data/CaseStudy.php
new file mode 100644
index 000000000..fc1ee5e9d
--- /dev/null
+++ b/implementations/php/src/Data/CaseStudy.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GraphQL\Compatibility\Data;
+
+use GraphQL\Utils\Utils;
+
+class CaseStudy
+{
+    public string $caseNumber;
+
+    public string $description;
+
+    public function __construct(array $data)
+    {
+        Utils::assign($this, $data);
+    }
+}
diff --git a/implementations/php/src/Data/DataSource.php b/implementations/php/src/Data/DataSource.php
index 99fec2373..5e380385b 100644
--- a/implementations/php/src/Data/DataSource.php
+++ b/implementations/php/src/Data/DataSource.php
@@ -7,12 +7,37 @@
 use function array_filter;
 use function array_values;
 
-class DataSource 
+class DataSource
 {
+    private static array $users = [];
+    private static array $productResearch = [];
     private static array $products = [];
+    private static array $deprecatedProducts = [];
 
     public static function init(): void
     {
+        self::$users = [
+            new User([
+                'email' => 'support@apollographql.com',
+                'name' => 'Jane Smith',
+            ]),
+        ];
+
+        self::$productResearch = [
+            new ProductResearch([
+                'study' => new CaseStudy([
+                    'caseNumber'  => '1234',
+                    'description' => 'Federation Study',
+                ]),
+            ]),
+            new ProductResearch([
+                'study' => new CaseStudy([
+                    'caseNumber'  => '1235',
+                    'description' => 'Studio Study',
+                ]),
+            ]),
+        ];
+
         self::$products = [
             new Product([
                 'id'        => 'apollo-federation',
@@ -27,6 +52,14 @@ public static function init(): void
                 'variation' => 'platform',
             ]),
         ];
+
+        self::$deprecatedProducts = [
+            new DeprecatedProduct([
+                'sku'       => 'apollo-federation-v1',
+                'package'   => '@apollo/federation-v1',
+                'reason' => 'Migrate to Federation V2',
+            ]),
+        ];
     }
 
     public static function findProduct(string $id) {
@@ -55,4 +88,38 @@ public static function findProductBySkuAndVariation(string $sku, string $variati
 
         return array_values($productsFound)[0] ?? null;
     }
-}
\ No newline at end of file
+
+    public static function findDeprecatedProductBySkuAndPackage(string $sku, string $package) {
+        $deprecatedProductsFound = array_filter(
+            self::$deprecatedProducts,
+            static fn (DeprecatedProduct $product): bool => $product->sku === $sku && $product->package === $package
+        );
+
+        return array_values($deprecatedProductsFound)[0] ?? null;
+    }
+
+    public static function findProductResearch(string $caseNumber) {
+        $researchFound = array_filter(
+            self::$productResearch,
+            static fn (ProductResearch $research): bool => $research->study->caseNumber === $caseNumber
+        );
+        return array_values($researchFound)[0] ?? null;
+    }
+
+    public static function findResearchForProduct(string $productId) {
+        $researchFound = array_filter(
+            self::$productResearch,
+            static fn (ProductResearch $research): bool => ($research->study->caseNumber === '1234' && $productId === 'apollo-federation') || ($research->study->caseNumber === '1235' && $productId === 'apollo-studio')
+        );
+        return array_values($researchFound) ?? [];
+    }
+
+    public static function findUser(string $email) {
+        $usersFound = array_filter(
+            self::$users,
+            static fn (User $user): bool => $user->email === $email
+        );
+
+        return array_values($usersFound)[0] ?? null;
+    }
+}
diff --git a/implementations/php/src/Data/DeprecatedProduct.php b/implementations/php/src/Data/DeprecatedProduct.php
new file mode 100644
index 000000000..978e7a8f3
--- /dev/null
+++ b/implementations/php/src/Data/DeprecatedProduct.php
@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GraphQL\Compatibility\Data;
+
+use GraphQL\Utils\Utils;
+
+class DeprecatedProduct
+{
+    public string $sku;
+
+    public string $package;
+
+    public string $reason;
+
+    public function __construct(array $data)
+    {
+        Utils::assign($this, $data);
+    }
+}
diff --git a/implementations/php/src/Data/ProductResearch.php b/implementations/php/src/Data/ProductResearch.php
new file mode 100644
index 000000000..4e5b08a2a
--- /dev/null
+++ b/implementations/php/src/Data/ProductResearch.php
@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GraphQL\Compatibility\Data;
+
+use GraphQL\Utils\Utils;
+
+class ProductResearch
+{
+    public CaseStudy $study;
+
+    public string $outcome;
+
+    public function __construct(array $data)
+    {
+        Utils::assign($this, $data);
+    }
+}
diff --git a/implementations/php/src/Data/User.php b/implementations/php/src/Data/User.php
new file mode 100644
index 000000000..e001529ba
--- /dev/null
+++ b/implementations/php/src/Data/User.php
@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GraphQL\Compatibility\Data;
+
+use GraphQL\Utils\Utils;
+
+class User
+{
+    public string $email;
+
+    public string $name;
+
+    public int $totalProductsCreated;
+
+    public int $yearsOfEmployment;
+
+    public function __construct(array $data)
+    {
+        Utils::assign($this, $data);
+    }
+}
diff --git a/implementations/php/src/Type/CaseStudyType.php b/implementations/php/src/Type/CaseStudyType.php
new file mode 100644
index 000000000..606833c92
--- /dev/null
+++ b/implementations/php/src/Type/CaseStudyType.php
@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GraphQL\Compatibility\Type;
+
+use GraphQL\Compatibility\Types;
+use GraphQL\Type\Definition\ObjectType;
+
+class CaseStudyType extends ObjectType {
+    public function __construct()
+    {
+        parent::__construct([
+            'name'   => 'CaseStudy',
+            'fields' => [
+                'caseNumber' => [ 'type' => Types::nonNull(Types::id()) ],
+                'description' => [ 'type' => Types::string() ]
+            ]
+        ]);
+    }
+}
diff --git a/implementations/php/src/Type/DeprecatedProductType.php b/implementations/php/src/Type/DeprecatedProductType.php
new file mode 100644
index 000000000..9f7bad3b4
--- /dev/null
+++ b/implementations/php/src/Type/DeprecatedProductType.php
@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GraphQL\Compatibility\Type;
+
+use GraphQL\Compatibility\Types;
+use GraphQL\Compatibility\Data\DeprecatedProduct;
+use GraphQL\Compatibility\Data\DataSource;
+
+use Apollo\Federation\Types\EntityObjectType;
+
+class DeprecatedProductType extends EntityObjectType {
+    public function __construct()
+    {
+        parent::__construct([
+            'name' => 'DeprecatedProduct',
+            'keyFields' => ['sku package'],
+            'fields'    => [
+                'sku'       => [ 'type' => Types::nonNull(Types::string()) ],
+                'package'   => [ 'type' => Types::nonNull(Types::string()) ],
+                'reason' => [ 'type'    => Types::string() ],
+                'createdBy' => [
+                    'type'     => Types::user(),
+                    'provides' => 'totalProductsCreated',
+                    'resolve'  => static fn (): array => [
+                        'email' => 'support@apollographql.com',
+                        'totalProductsCreated' => 1337,
+                    ]
+                ],
+            ],
+            '__resolveReference' => function ($ref) {
+                $sku =       $ref['sku'];
+                $package =   $ref['package'];
+
+                if ($sku !== null && $package !== null) {
+                    return DataSource::findDeprecatedProductBySkuAndPackage($sku, $package);
+                }
+            },
+            'isTypeOf' => function ($value) {
+                if ($value instanceof DeprecatedProduct) {
+                    return true;
+                }
+            },
+        ]);
+    }
+
+    static function getVariation(string $variation): array {
+        return [ 'id' => $variation ];
+    }
+}
diff --git a/implementations/php/src/Type/ProductDimensionType.php b/implementations/php/src/Type/ProductDimensionType.php
index b77c8c9b7..979474192 100644
--- a/implementations/php/src/Type/ProductDimensionType.php
+++ b/implementations/php/src/Type/ProductDimensionType.php
@@ -15,7 +15,8 @@ public function __construct()
             'fields' => [
                 'size'   => [ 'type' => Types::string() ],
                 'weight' => [ 'type' => Types::float() ],
+                'unit' => [ 'type' => Types::string() ]
             ]
         ]);
     }
-}
\ No newline at end of file
+}
diff --git a/implementations/php/src/Type/ProductResearchType.php b/implementations/php/src/Type/ProductResearchType.php
new file mode 100644
index 000000000..af6d3d638
--- /dev/null
+++ b/implementations/php/src/Type/ProductResearchType.php
@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+namespace GraphQL\Compatibility\Type;
+
+use GraphQL\Compatibility\Types;
+use GraphQL\Compatibility\Data\ProductResearch;
+use GraphQL\Compatibility\Data\DataSource;
+
+use Apollo\Federation\Types\EntityObjectType;
+
+class ProductResearchType extends EntityObjectType {
+    public function __construct()
+    {
+        parent::__construct([
+            'name'   => 'ProductResearch',
+            'keyFields' => ['study { caseNumber }'],
+            'fields' => [
+                'study' => ['type' => Types::nonNull(Types::caseStudy())],
+                'outcome' => [ 'type' => Types::string() ]
+            ],
+            '__resolveReference' => function ($ref) {
+                $study = $ref['study'] !== NULL ? $ref['study']['caseNumber'] : NULL;
+
+                if($study !== null) {
+                    return DataSource::findProductResearch($study);
+                }
+            },
+            'isTypeOf' => function ($value) {
+                if ($value instanceof ProductResearch) {
+                    return true;
+                }
+            },
+        ]);
+    }
+}
diff --git a/implementations/php/src/Type/ProductType.php b/implementations/php/src/Type/ProductType.php
index 10157ebab..1455b23ec 100644
--- a/implementations/php/src/Type/ProductType.php
+++ b/implementations/php/src/Type/ProductType.php
@@ -35,28 +35,55 @@ public function __construct()
                     'resolve' => static fn (): array => [
                         'size'   => 'small',
                         'weight' => 1,
+                        'unit'   => "kg"
                     ]
                 ],
                 'createdBy' => [
                     'type'     => Types::user(),
                     'provides' => 'totalProductsCreated',
-                    'resolve'  => static fn (): array => [
+                    'resolve'  => static fn (): array =>  [
                         'email' => 'support@apollographql.com',
+                        'name' => 'Jane Smith',
                         'totalProductsCreated' => 1337,
                     ]
+                ],
+                'notes' => [ 'type'    => Types::string() ],
+                'research' => [
+                    'type' => Types::nonNull(Types::list(Types::nonNull(Types::productResearch()))),
+                    'resolve' => static function ($ref): array {
+                        return DataSource::findResearchForProduct($ref->id);
+                    }
                 ]
             ],
             '__resolveReference' => function ($ref) {
-                $id =        $ref['id'];
-                $sku =       $ref['sku'];
-                $package =   $ref['package'];
-                $variation = $ref['variation'] !== NULL ? $ref['variation']['id'] : NULL;
+                $id = NULL;
+                $sku = NULL;
+                $package = NULL;
+                $variation = NULL;
+
+                if (array_key_exists('id', $ref)) {
+                    $id = $ref['id'];
+                }
+                if (array_key_exists('sku', $ref)) {
+                    $sku = $ref['sku'];
+                }
+
+                if (array_key_exists('package', $ref)) {
+                    $package = $ref['package'];
+                }
+
+                if (array_key_exists('variation', $ref)) {
+                    $tmp = $ref['variation'];
+                    if (array_key_exists('id', $tmp)) {
+                        $variation = $tmp['id'];
+                    }
+                }
 
                 if($id !== null) {
                     return DataSource::findProduct($id);
                 } else if ($sku !== null && $package !== null) {
                     return DataSource::findProductBySkuAndPackage($sku, $package);
-                } else {
+                } else if ($sku !== null && $variation !== null) {
                     return DataSource::findProductBySkuAndVariation($sku, $variation);
                 }
             },
diff --git a/implementations/php/src/Type/QueryType.php b/implementations/php/src/Type/QueryType.php
index 3c538f481..a762b6a65 100644
--- a/implementations/php/src/Type/QueryType.php
+++ b/implementations/php/src/Type/QueryType.php
@@ -24,7 +24,18 @@ public function __construct()
                         return DataSource::findProduct($args['id']);
                     }
                 ],
+                'deprecatedProduct' => [
+                    'type' => Types::deprecatedProduct(),
+                    'args' => [
+                        'sku' => Types::nonNull(Types::string()),
+                        'package' => Types::nonNull(Types::string()),
+                    ],
+                    'deprecationReason' => 'Use product query instead',
+                    'resolve' => static function ($_, $args) {
+                        return DataSource::findDeprecatedProductBySkuAndPackage($args['sku'], $args['package']);
+                    }
+                ]
             ],
         ]);
     }
-}
\ No newline at end of file
+}
diff --git a/implementations/php/src/Type/UserType.php b/implementations/php/src/Type/UserType.php
index 28a8b4d2d..44f7a1210 100644
--- a/implementations/php/src/Type/UserType.php
+++ b/implementations/php/src/Type/UserType.php
@@ -5,6 +5,8 @@
 namespace GraphQL\Compatibility\Type;
 
 use GraphQL\Compatibility\Types;
+use GraphQL\Compatibility\Data\User;
+use GraphQL\Compatibility\Data\DataSource;
 use Apollo\Federation\Types\EntityRefObjectType;
 
 class UserType extends EntityRefObjectType {
@@ -14,12 +16,47 @@ public function __construct()
             'name'      => 'User',
             'keyFields' => [ 'email' ],
             'fields'    => [
+                'averageProductsCreatedPerYear' => [
+                    'type' => Types::int(),
+                    'requires' => 'totalProductsCreated yearsOfEmployment',
+                    'resolve' => static function ($ref) {
+                        if ($ref->totalProductsCreated !== null && $ref->yearsOfEmployment !== null) {
+                            return round($ref->totalProductsCreated / $ref->yearsOfEmployment);
+                        }
+
+                        return null;
+                    }
+                ],
                 'email' => [ 'type' => Types::nonNull(Types::id()) ],
+                'name' => [ 'type' => Types::string() ],
                 'totalProductsCreated' => [
                     'type'       => Types::int(),
                     'isExternal' => true
                 ],
-            ]
+                'yearsOfEmployment' => [
+                    'type' => Types::nonNull(Types::int()),
+                    'isExternal' => true
+                ]
+            ],
+            '__resolveReference' => function ($ref) {
+                $email = $ref['email'];
+                if($email !== null) {
+                    $user = DataSource::findUser($email);
+                    if (array_key_exists('totalProductsCreated', $ref)) {
+                        $user->{'totalProductsCreated'} = $ref['totalProductsCreated'];
+                    }
+
+                    if (array_key_exists('yearsOfEmployment', $ref)) {
+                        $user->{'yearsOfEmployment'} = $ref['yearsOfEmployment'];
+                    }
+                    return $user;
+                }
+            },
+            'isTypeOf' => function ($value) {
+                if ($value instanceof User) {
+                    return true;
+                }
+            },
         ]);
     }
-}
\ No newline at end of file
+}
diff --git a/implementations/php/src/Types.php b/implementations/php/src/Types.php
index 3bdd509d3..e2ff39f14 100644
--- a/implementations/php/src/Types.php
+++ b/implementations/php/src/Types.php
@@ -10,10 +10,14 @@
 use GraphQL\Type\Definition\Type;
 use GraphQL\Type\Definition\ScalarType;
 use GraphQL\Type\Definition\NonNull;
+use GraphQL\Type\Definition\ListOfType;
 
+use GraphQL\Compatibility\Type\CaseStudyType;
+use GraphQL\Compatibility\Type\DeprecatedProductType;
 use GraphQL\Compatibility\Type\ProductType;
 use GraphQL\Compatibility\Type\ProductDimensionType;
 use GraphQL\Compatibility\Type\ProductVariationType;
+use GraphQL\Compatibility\Type\ProductResearchType;
 use GraphQL\Compatibility\Type\UserType;
 
 use function class_exists;
@@ -27,6 +31,16 @@
 class Types {
     private static array $types = [];
 
+    public static function caseStudy(): callable
+    {
+        return static::get(CaseStudyType::class);
+    }
+
+    public static function deprecatedProduct(): callable
+    {
+        return static::get(DeprecatedProductType::class);
+    }
+
     public static function product(): callable
     {
         return static::get(ProductType::class);
@@ -42,6 +56,11 @@ public static function productVariation(): callable
         return static::get(ProductVariationType::class);
     }
 
+    public static function productResearch(): callable
+    {
+        return static::get(ProductResearchType::class);
+    }
+
     public static function user(): callable
     {
         return static::get(UserType::class);
@@ -56,7 +75,7 @@ public static function id(): ScalarType
     {
         return Type::id();
     }
-    
+
     public static function int(): ScalarType
     {
         return Type::int();
@@ -72,6 +91,11 @@ public static function nonNull($type): NonNull
         return new NonNull($type);
     }
 
+    public static function list($type): ListOfType
+    {
+        return new ListOfType($type);
+    }
+
     private static function get(string $classname): Closure
     {
         return static fn () => static::byClassName($classname);
@@ -121,4 +145,4 @@ public static function byTypeName(string $shortName): Type
 
         return $type;
     }
-}
\ No newline at end of file
+}
diff --git a/implementations/php/src/server.php b/implementations/php/src/server.php
index 538efc743..1ea787a84 100644
--- a/implementations/php/src/server.php
+++ b/implementations/php/src/server.php
@@ -18,6 +18,9 @@
 
 use Apollo\Federation\FederatedSchema;
 
+// turn off deprecation notices
+error_reporting(E_ALL ^ E_DEPRECATED);
+
 try {
     DataSource::init();