diff --git a/composer.json b/composer.json
index c83557c93..7db191e65 100644
--- a/composer.json
+++ b/composer.json
@@ -103,12 +103,12 @@
     "extra": {
         "downloads": {
             "pact-ffi-headers": {
-                "version": "0.4.11",
+                "version": "0.4.12",
                 "url": "https://github.com/pact-foundation/pact-reference/releases/download/libpact_ffi-v{$version}/pact.h",
                 "path": "bin/pact-ffi-headers/pact.h"
             },
             "pact-ffi-lib": {
-                "version": "0.4.11",
+                "version": "0.4.12",
                 "variables": {
                     "{$prefix}": "PHP_OS_FAMILY === 'Windows' ? 'pact_ffi' : 'libpact_ffi'",
                     "{$os}": "PHP_OS === 'Darwin' ? 'osx' : strtolower(PHP_OS_FAMILY)",
diff --git a/example/matchers/consumer/tests/Service/MatchersTest.php b/example/matchers/consumer/tests/Service/MatchersTest.php
index fb02ef632..df756ac4f 100644
--- a/example/matchers/consumer/tests/Service/MatchersTest.php
+++ b/example/matchers/consumer/tests/Service/MatchersTest.php
@@ -40,6 +40,22 @@ public function testGetMatchers(): void
         $response
             ->setStatus($this->matcher->statusCode(HttpStatus::SERVER_ERROR, 512))
             ->addHeader('Content-Type', 'application/json')
+            ->addHeader('X-IMPROVED', [
+                $this->matcher->values([
+                    'like',
+                    'regex',
+                    'values',
+                    'arrayContaining',
+                ]),
+            ])
+            ->addHeader('X-REMOVED', [
+                $this->matcher->arrayContaining([
+                    'ipv4AddressV3',
+                    'ipv6AddressV3',
+                    'emailV3',
+                    'statusCode',
+                ]),
+            ])
             ->setBody([
                 'like' => $this->matcher->like(['key' => 'value']),
                 'likeNull' => $this->matcher->like(null),
diff --git a/example/matchers/pacts/matchersConsumer-matchersProvider.json b/example/matchers/pacts/matchersConsumer-matchersProvider.json
index a9f8dce85..72b7530c1 100644
--- a/example/matchers/pacts/matchersConsumer-matchersProvider.json
+++ b/example/matchers/pacts/matchersConsumer-matchersProvider.json
@@ -29,21 +29,21 @@
             ]
           },
           "query": {
-            "$.pages": {
+            "locales[]": {
               "combine": "AND",
               "matchers": [
                 {
                   "match": "regex",
-                  "regex": "\\d+"
+                  "regex": "^[a-z]{2}-[A-Z]{2}$"
                 }
               ]
             },
-            "$['locales[]']": {
+            "pages": {
               "combine": "AND",
               "matchers": [
                 {
                   "match": "regex",
-                  "regex": "^[a-z]{2}-[A-Z]{2}$"
+                  "regex": "\\d+"
                 }
               ]
             }
@@ -159,6 +159,15 @@
         "headers": {
           "Content-Type": [
             "application/json"
+          ],
+          "X-IMPROVED": [
+            "like",
+            "regex",
+            "values",
+            "arrayContaining"
+          ],
+          "X-REMOVED": [
+            ""
           ]
         },
         "matchingRules": {
@@ -570,7 +579,78 @@
               ]
             }
           },
-          "header": {},
+          "header": {
+            "X-IMPROVED": {
+              "combine": "AND",
+              "matchers": [
+                {
+                  "match": "values"
+                }
+              ]
+            },
+            "X-REMOVED": {
+              "combine": "AND",
+              "matchers": [
+                {
+                  "match": "arrayContains",
+                  "variants": [
+                    {
+                      "index": 0,
+                      "rules": {
+                        "": {
+                          "combine": "AND",
+                          "matchers": [
+                            {
+                              "match": "equality"
+                            }
+                          ]
+                        }
+                      }
+                    },
+                    {
+                      "index": 0,
+                      "rules": {
+                        "": {
+                          "combine": "AND",
+                          "matchers": [
+                            {
+                              "match": "equality"
+                            }
+                          ]
+                        }
+                      }
+                    },
+                    {
+                      "index": 0,
+                      "rules": {
+                        "": {
+                          "combine": "AND",
+                          "matchers": [
+                            {
+                              "match": "equality"
+                            }
+                          ]
+                        }
+                      }
+                    },
+                    {
+                      "index": 0,
+                      "rules": {
+                        "": {
+                          "combine": "AND",
+                          "matchers": [
+                            {
+                              "match": "equality"
+                            }
+                          ]
+                        }
+                      }
+                    }
+                  ]
+                }
+              ]
+            }
+          },
           "status": {
             "$": {
               "combine": "AND",
@@ -591,9 +671,9 @@
   ],
   "metadata": {
     "pactRust": {
-      "ffi": "0.4.11",
+      "ffi": "0.4.12",
       "mockserver": "1.2.4",
-      "models": "1.1.12"
+      "models": "1.1.14"
     },
     "pactSpecification": {
       "version": "4.0"
diff --git a/example/matchers/provider/public/index.php b/example/matchers/provider/public/index.php
index 87fde2982..420e929f5 100644
--- a/example/matchers/provider/public/index.php
+++ b/example/matchers/provider/public/index.php
@@ -91,7 +91,19 @@
 
     return $response
         ->withHeader('Content-Type', 'application/json')
-        ->withStatus(503);
+        ->withStatus(503)
+        ->withHeader('X-IMPROVED', [
+            'regex',
+            'like',
+            'values',
+            'arrayContaining',
+        ])
+        ->withHeader('X-REMOVED', [
+            'ipv4AddressV3',
+            'ipv6AddressV3',
+            'emailV3',
+            'statusCode',
+        ]);
 });
 
 $app->post('/pact-change-state', function (Request $request, Response $response) {