diff --git a/.travis.yml b/.travis.yml
index 44b0eb45e..8a33f00df 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,61 +27,19 @@ env:
 
 matrix:
   include:
-    - php: 5.6
+    - php: 7.1
       env:
         - DEPS=lowest
-    - php: 5.6
+    - php: 7.1
       env:
         - DEPS=locked
         - EXECUTE_HOSTNAME_CHECK=true
         - TEST_COVERAGE=true
         - DEPLOY_DOCS="$(if [[ $TRAVIS_BRANCH == 'master' && $TRAVIS_PULL_REQUEST == 'false' ]]; then echo -n 'true' ; else echo -n 'false' ; fi)"
         - PATH="$HOME/.local/bin:$PATH"
-    - php: 5.6
-      env:
-        - DEPS=locked
-        - SERVICE_MANAGER_VERSION="^2.7.5"
-    - php: 5.6
-      env:
-        - DEPS=latest
-    - php: 7
-      env:
-        - DEPS=lowest
-    - php: 7
-      env:
-        - DEPS=locked
-        - CS_CHECK=true
-    - php: 7
-      env:
-        - DEPS=locked
-        - SERVICE_MANAGER_VERSION="^2.7.5"
-    - php: 7
-      env:
-        - DEPS=latest
     - php: 7.1
-      env:
-        - DEPS=lowest
-    - php: 7.1
-      env:
-        - DEPS=locked
-    - php: 7.1
-      env:
-        - DEPS=latest
-    - php: hhvm
-      env:
-        - DEPS=lowest
-    - php: hhvm
-      env:
-        - DEPS=locked
-    - php: hhvm
       env:
         - DEPS=latest
-    - php: hhvm
-      env:
-        - DEPS=locked
-        - SERVICE_MANAGER_VERSION="^2.7.5"
-  allow_failures:
-    - php: hhvm
 
 before_install:
   - if [[ $TEST_COVERAGE != 'true' ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
diff --git a/composer.json b/composer.json
index 560ed56bb..963a5c13e 100644
--- a/composer.json
+++ b/composer.json
@@ -13,8 +13,8 @@
         }
     },
     "require": {
-        "php": "^5.6 || ^7.0",
-        "zendframework/zend-stdlib": "^2.7.6 || ^3.1",
+        "php": ">=7.1",
+        "zendframework/zend-stdlib": "^3.1",
         "container-interop/container-interop": "^1.1"
     },
     "require-dev": {
@@ -25,10 +25,10 @@
         "zendframework/zend-http": "^2.5.4",
         "zendframework/zend-i18n": "^2.6",
         "zendframework/zend-math": "^2.6",
-        "zendframework/zend-servicemanager": "^2.7.5 || ^3.0.3",
+        "zendframework/zend-servicemanager": "^3.0.3",
         "zendframework/zend-session": "^2.6.2",
         "zendframework/zend-uri": "^2.5",
-        "phpunit/PHPUnit": "^6.0.8 || ^5.7.15",
+        "phpunit/phpunit": "^6.2.2",
         "zendframework/zend-coding-standard": "~1.0.0"
     },
     "suggest": {
diff --git a/composer.lock b/composer.lock
index dca2092e7..c202b1fcf 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,6 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
+    "hash": "387f2b7cb1b5ff06580f7c06a786ac01",
     "content-hash": "6926a47b4f62c328d7c9d74767654cb9",
     "packages": [
         {
@@ -35,7 +36,7 @@
             ],
             "description": "Promoting the interoperability of container objects (DIC, SL, etc.)",
             "homepage": "https://github.com/container-interop/container-interop",
-            "time": "2017-02-14T19:40:03+00:00"
+            "time": "2017-02-14 19:40:03"
         },
         {
             "name": "psr/container",
@@ -84,7 +85,7 @@
                 "container-interop",
                 "psr"
             ],
-            "time": "2017-02-14T16:28:37+00:00"
+            "time": "2017-02-14 16:28:37"
         },
         {
             "name": "zendframework/zend-stdlib",
@@ -129,7 +130,7 @@
                 "stdlib",
                 "zf2"
             ],
-            "time": "2016-09-13T14:38:50+00:00"
+            "time": "2016-09-13 14:38:50"
         }
     ],
     "packages-dev": [
@@ -185,20 +186,20 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2015-06-14T21:17:01+00:00"
+            "time": "2015-06-14 21:17:01"
         },
         {
             "name": "myclabs/deep-copy",
-            "version": "1.6.0",
+            "version": "1.6.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/myclabs/DeepCopy.git",
-                "reference": "5a5a9fc8025a08d8919be87d6884d5a92520cefe"
+                "reference": "8e6e04167378abf1ddb4d3522d8755c5fd90d102"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/5a5a9fc8025a08d8919be87d6884d5a92520cefe",
-                "reference": "5a5a9fc8025a08d8919be87d6884d5a92520cefe",
+                "url": "https://api.github.com/repos/myclabs/DeepCopy/zipball/8e6e04167378abf1ddb4d3522d8755c5fd90d102",
+                "reference": "8e6e04167378abf1ddb4d3522d8755c5fd90d102",
                 "shasum": ""
             },
             "require": {
@@ -227,7 +228,109 @@
                 "object",
                 "object graph"
             ],
-            "time": "2017-01-26T22:05:40+00:00"
+            "time": "2017-04-12 18:52:22"
+        },
+        {
+            "name": "phar-io/manifest",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phar-io/manifest.git",
+                "reference": "2df402786ab5368a0169091f61a7c1e0eb6852d0"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phar-io/manifest/zipball/2df402786ab5368a0169091f61a7c1e0eb6852d0",
+                "reference": "2df402786ab5368a0169091f61a7c1e0eb6852d0",
+                "shasum": ""
+            },
+            "require": {
+                "ext-dom": "*",
+                "ext-phar": "*",
+                "phar-io/version": "^1.0.1",
+                "php": "^5.6 || ^7.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Arne Blankerts",
+                    "email": "arne@blankerts.de",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Sebastian Heuer",
+                    "email": "sebastian@phpeople.de",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Component for reading phar.io manifest information from a PHP Archive (PHAR)",
+            "time": "2017-03-05 18:14:27"
+        },
+        {
+            "name": "phar-io/version",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phar-io/version.git",
+                "reference": "a70c0ced4be299a63d32fa96d9281d03e94041df"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phar-io/version/zipball/a70c0ced4be299a63d32fa96d9281d03e94041df",
+                "reference": "a70c0ced4be299a63d32fa96d9281d03e94041df",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.6 || ^7.0"
+            },
+            "type": "library",
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Arne Blankerts",
+                    "email": "arne@blankerts.de",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Sebastian Heuer",
+                    "email": "sebastian@phpeople.de",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Library for handling version information and constraints",
+            "time": "2017-03-05 17:38:23"
         },
         {
             "name": "phpdocumentor/reflection-common",
@@ -281,7 +384,7 @@
                 "reflection",
                 "static analysis"
             ],
-            "time": "2015-12-27T11:43:31+00:00"
+            "time": "2015-12-27 11:43:31"
         },
         {
             "name": "phpdocumentor/reflection-docblock",
@@ -326,7 +429,7 @@
                 }
             ],
             "description": "With this component, a library can provide support for annotations via DocBlocks or otherwise retrieve information that is embedded in a DocBlock.",
-            "time": "2016-09-30T07:12:33+00:00"
+            "time": "2016-09-30 07:12:33"
         },
         {
             "name": "phpdocumentor/type-resolver",
@@ -373,7 +476,7 @@
                     "email": "me@mikevanriel.com"
                 }
             ],
-            "time": "2016-11-25T06:54:22+00:00"
+            "time": "2016-11-25 06:54:22"
         },
         {
             "name": "phpspec/prophecy",
@@ -436,44 +539,45 @@
                 "spy",
                 "stub"
             ],
-            "time": "2017-03-02T20:05:34+00:00"
+            "time": "2017-03-02 20:05:34"
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "4.0.7",
+            "version": "5.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "09e2277d14ea467e5a984010f501343ef29ffc69"
+                "reference": "dc421f9ca5082a0c0cb04afb171c765f79add85b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/09e2277d14ea467e5a984010f501343ef29ffc69",
-                "reference": "09e2277d14ea467e5a984010f501343ef29ffc69",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/dc421f9ca5082a0c0cb04afb171c765f79add85b",
+                "reference": "dc421f9ca5082a0c0cb04afb171c765f79add85b",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
                 "ext-xmlwriter": "*",
-                "php": "^5.6 || ^7.0",
+                "php": "^7.0",
                 "phpunit/php-file-iterator": "^1.3",
                 "phpunit/php-text-template": "^1.2",
-                "phpunit/php-token-stream": "^1.4.2 || ^2.0",
+                "phpunit/php-token-stream": "^1.4.11 || ^2.0",
                 "sebastian/code-unit-reverse-lookup": "^1.0",
-                "sebastian/environment": "^1.3.2 || ^2.0",
-                "sebastian/version": "^1.0 || ^2.0"
+                "sebastian/environment": "^3.0",
+                "sebastian/version": "^2.0",
+                "theseer/tokenizer": "^1.1"
             },
             "require-dev": {
-                "ext-xdebug": "^2.1.4",
-                "phpunit/phpunit": "^5.7"
+                "ext-xdebug": "^2.5",
+                "phpunit/phpunit": "^6.0"
             },
             "suggest": {
-                "ext-xdebug": "^2.5.1"
+                "ext-xdebug": "^2.5.3"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0.x-dev"
+                    "dev-master": "5.2.x-dev"
                 }
             },
             "autoload": {
@@ -499,7 +603,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2017-03-01T09:12:17+00:00"
+            "time": "2017-04-21 08:03:57"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -546,7 +650,7 @@
                 "filesystem",
                 "iterator"
             ],
-            "time": "2016-10-03T07:40:28+00:00"
+            "time": "2016-10-03 07:40:28"
         },
         {
             "name": "phpunit/php-text-template",
@@ -587,7 +691,7 @@
             "keywords": [
                 "template"
             ],
-            "time": "2015-06-21T13:50:34+00:00"
+            "time": "2015-06-21 13:50:34"
         },
         {
             "name": "phpunit/php-timer",
@@ -636,7 +740,7 @@
             "keywords": [
                 "timer"
             ],
-            "time": "2017-02-26T11:10:40+00:00"
+            "time": "2017-02-26 11:10:40"
         },
         {
             "name": "phpunit/php-token-stream",
@@ -685,20 +789,20 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2017-02-27T10:12:30+00:00"
+            "time": "2017-02-27 10:12:30"
         },
         {
             "name": "phpunit/phpunit",
-            "version": "5.7.16",
+            "version": "6.2.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "dafc78e2a7d12139b0e97078d1082326bd09363d"
+                "reference": "f2786490399836d2a544a34785c4a8d3ab32cf0e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/dafc78e2a7d12139b0e97078d1082326bd09363d",
-                "reference": "dafc78e2a7d12139b0e97078d1082326bd09363d",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/f2786490399836d2a544a34785c4a8d3ab32cf0e",
+                "reference": "f2786490399836d2a544a34785c4a8d3ab32cf0e",
                 "shasum": ""
             },
             "require": {
@@ -707,33 +811,35 @@
                 "ext-libxml": "*",
                 "ext-mbstring": "*",
                 "ext-xml": "*",
-                "myclabs/deep-copy": "~1.3",
-                "php": "^5.6 || ^7.0",
-                "phpspec/prophecy": "^1.6.2",
-                "phpunit/php-code-coverage": "^4.0.4",
-                "phpunit/php-file-iterator": "~1.4",
-                "phpunit/php-text-template": "~1.2",
+                "myclabs/deep-copy": "^1.3",
+                "phar-io/manifest": "^1.0.1",
+                "phar-io/version": "^1.0",
+                "php": "^7.0",
+                "phpspec/prophecy": "^1.7",
+                "phpunit/php-code-coverage": "^5.2",
+                "phpunit/php-file-iterator": "^1.4",
+                "phpunit/php-text-template": "^1.2",
                 "phpunit/php-timer": "^1.0.6",
-                "phpunit/phpunit-mock-objects": "^3.2",
-                "sebastian/comparator": "^1.2.4",
-                "sebastian/diff": "~1.2",
-                "sebastian/environment": "^1.3.4 || ^2.0",
-                "sebastian/exporter": "~2.0",
-                "sebastian/global-state": "^1.1",
-                "sebastian/object-enumerator": "~2.0",
-                "sebastian/resource-operations": "~1.0",
-                "sebastian/version": "~1.0.3|~2.0",
-                "symfony/yaml": "~2.1|~3.0"
+                "phpunit/phpunit-mock-objects": "^4.0",
+                "sebastian/comparator": "^2.0",
+                "sebastian/diff": "^1.4.3 || ^2.0",
+                "sebastian/environment": "^3.0.2",
+                "sebastian/exporter": "^3.1",
+                "sebastian/global-state": "^1.1 || ^2.0",
+                "sebastian/object-enumerator": "^3.0.2",
+                "sebastian/resource-operations": "^1.0",
+                "sebastian/version": "^2.0"
             },
             "conflict": {
-                "phpdocumentor/reflection-docblock": "3.0.2"
+                "phpdocumentor/reflection-docblock": "3.0.2",
+                "phpunit/dbunit": "<3.0"
             },
             "require-dev": {
                 "ext-pdo": "*"
             },
             "suggest": {
                 "ext-xdebug": "*",
-                "phpunit/php-invoker": "~1.1"
+                "phpunit/php-invoker": "^1.1"
             },
             "bin": [
                 "phpunit"
@@ -741,7 +847,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "5.7.x-dev"
+                    "dev-master": "6.2.x-dev"
                 }
             },
             "autoload": {
@@ -767,33 +873,33 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2017-03-15T13:02:34+00:00"
+            "time": "2017-06-13 14:07:07"
         },
         {
             "name": "phpunit/phpunit-mock-objects",
-            "version": "3.4.3",
+            "version": "4.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit-mock-objects.git",
-                "reference": "3ab72b65b39b491e0c011e2e09bb2206c2aa8e24"
+                "reference": "eabce450df194817a7d7e27e19013569a903a2bf"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit-mock-objects/zipball/3ab72b65b39b491e0c011e2e09bb2206c2aa8e24",
-                "reference": "3ab72b65b39b491e0c011e2e09bb2206c2aa8e24",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit-mock-objects/zipball/eabce450df194817a7d7e27e19013569a903a2bf",
+                "reference": "eabce450df194817a7d7e27e19013569a903a2bf",
                 "shasum": ""
             },
             "require": {
                 "doctrine/instantiator": "^1.0.2",
-                "php": "^5.6 || ^7.0",
+                "php": "^7.0",
                 "phpunit/php-text-template": "^1.2",
-                "sebastian/exporter": "^1.2 || ^2.0"
+                "sebastian/exporter": "^3.0"
             },
             "conflict": {
-                "phpunit/phpunit": "<5.4.0"
+                "phpunit/phpunit": "<6.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^5.4"
+                "phpunit/phpunit": "^6.0"
             },
             "suggest": {
                 "ext-soap": "*"
@@ -801,7 +907,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.2.x-dev"
+                    "dev-master": "4.0.x-dev"
                 }
             },
             "autoload": {
@@ -826,7 +932,7 @@
                 "mock",
                 "xunit"
             ],
-            "time": "2016-12-08T20:27:08+00:00"
+            "time": "2017-03-03 06:30:20"
         },
         {
             "name": "sebastian/code-unit-reverse-lookup",
@@ -871,34 +977,34 @@
             ],
             "description": "Looks up which function or method a line of code belongs to",
             "homepage": "https://github.com/sebastianbergmann/code-unit-reverse-lookup/",
-            "time": "2017-03-04T06:30:41+00:00"
+            "time": "2017-03-04 06:30:41"
         },
         {
             "name": "sebastian/comparator",
-            "version": "1.2.4",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/comparator.git",
-                "reference": "2b7424b55f5047b47ac6e5ccb20b2aea4011d9be"
+                "reference": "20f84f468cb67efee293246e6a09619b891f55f0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/comparator/zipball/2b7424b55f5047b47ac6e5ccb20b2aea4011d9be",
-                "reference": "2b7424b55f5047b47ac6e5ccb20b2aea4011d9be",
+                "url": "https://api.github.com/repos/sebastianbergmann/comparator/zipball/20f84f468cb67efee293246e6a09619b891f55f0",
+                "reference": "20f84f468cb67efee293246e6a09619b891f55f0",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3",
-                "sebastian/diff": "~1.2",
-                "sebastian/exporter": "~1.2 || ~2.0"
+                "php": "^7.0",
+                "sebastian/diff": "^1.2",
+                "sebastian/exporter": "^3.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.4"
+                "phpunit/phpunit": "^6.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.2.x-dev"
+                    "dev-master": "2.0.x-dev"
                 }
             },
             "autoload": {
@@ -935,27 +1041,27 @@
                 "compare",
                 "equality"
             ],
-            "time": "2017-01-29T09:50:25+00:00"
+            "time": "2017-03-03 06:26:08"
         },
         {
             "name": "sebastian/diff",
-            "version": "1.4.1",
+            "version": "1.4.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/diff.git",
-                "reference": "13edfd8706462032c2f52b4b862974dd46b71c9e"
+                "reference": "7f066a26a962dbe58ddea9f72a4e82874a3975a4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/diff/zipball/13edfd8706462032c2f52b4b862974dd46b71c9e",
-                "reference": "13edfd8706462032c2f52b4b862974dd46b71c9e",
+                "url": "https://api.github.com/repos/sebastianbergmann/diff/zipball/7f066a26a962dbe58ddea9f72a4e82874a3975a4",
+                "reference": "7f066a26a962dbe58ddea9f72a4e82874a3975a4",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": "^5.3.3 || ^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.8"
+                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.0"
             },
             "type": "library",
             "extra": {
@@ -987,32 +1093,32 @@
             "keywords": [
                 "diff"
             ],
-            "time": "2015-12-08T07:14:41+00:00"
+            "time": "2017-05-22 07:24:03"
         },
         {
             "name": "sebastian/environment",
-            "version": "2.0.0",
+            "version": "3.0.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/environment.git",
-                "reference": "5795ffe5dc5b02460c3e34222fee8cbe245d8fac"
+                "reference": "74776f8dbc081cab9287c2a601c0c1d842568744"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/5795ffe5dc5b02460c3e34222fee8cbe245d8fac",
-                "reference": "5795ffe5dc5b02460c3e34222fee8cbe245d8fac",
+                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/74776f8dbc081cab9287c2a601c0c1d842568744",
+                "reference": "74776f8dbc081cab9287c2a601c0c1d842568744",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.6 || ^7.0"
+                "php": "^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "^5.0"
+                "phpunit/phpunit": "^6.1"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "3.0.x-dev"
                 }
             },
             "autoload": {
@@ -1037,34 +1143,34 @@
                 "environment",
                 "hhvm"
             ],
-            "time": "2016-11-26T07:53:53+00:00"
+            "time": "2017-06-20 16:25:05"
         },
         {
             "name": "sebastian/exporter",
-            "version": "2.0.0",
+            "version": "3.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/exporter.git",
-                "reference": "ce474bdd1a34744d7ac5d6aad3a46d48d9bac4c4"
+                "reference": "234199f4528de6d12aaa58b612e98f7d36adb937"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/ce474bdd1a34744d7ac5d6aad3a46d48d9bac4c4",
-                "reference": "ce474bdd1a34744d7ac5d6aad3a46d48d9bac4c4",
+                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/234199f4528de6d12aaa58b612e98f7d36adb937",
+                "reference": "234199f4528de6d12aaa58b612e98f7d36adb937",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3",
-                "sebastian/recursion-context": "~2.0"
+                "php": "^7.0",
+                "sebastian/recursion-context": "^3.0"
             },
             "require-dev": {
                 "ext-mbstring": "*",
-                "phpunit/phpunit": "~4.4"
+                "phpunit/phpunit": "^6.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "3.1.x-dev"
                 }
             },
             "autoload": {
@@ -1104,27 +1210,27 @@
                 "export",
                 "exporter"
             ],
-            "time": "2016-11-19T08:54:04+00:00"
+            "time": "2017-04-03 13:19:02"
         },
         {
             "name": "sebastian/global-state",
-            "version": "1.1.1",
+            "version": "2.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/global-state.git",
-                "reference": "bc37d50fea7d017d3d340f230811c9f1d7280af4"
+                "reference": "e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/bc37d50fea7d017d3d340f230811c9f1d7280af4",
-                "reference": "bc37d50fea7d017d3d340f230811c9f1d7280af4",
+                "url": "https://api.github.com/repos/sebastianbergmann/global-state/zipball/e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4",
+                "reference": "e8ba02eed7bbbb9e59e43dedd3dddeff4a56b0c4",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": "^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.2"
+                "phpunit/phpunit": "^6.0"
             },
             "suggest": {
                 "ext-uopz": "*"
@@ -1132,7 +1238,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0-dev"
+                    "dev-master": "2.0-dev"
                 }
             },
             "autoload": {
@@ -1155,33 +1261,34 @@
             "keywords": [
                 "global state"
             ],
-            "time": "2015-10-12T03:26:01+00:00"
+            "time": "2017-04-27 15:39:26"
         },
         {
             "name": "sebastian/object-enumerator",
-            "version": "2.0.1",
+            "version": "3.0.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/object-enumerator.git",
-                "reference": "1311872ac850040a79c3c058bea3e22d0f09cbb7"
+                "reference": "31dd3379d16446c5d86dec32ab1ad1f378581ad8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/1311872ac850040a79c3c058bea3e22d0f09cbb7",
-                "reference": "1311872ac850040a79c3c058bea3e22d0f09cbb7",
+                "url": "https://api.github.com/repos/sebastianbergmann/object-enumerator/zipball/31dd3379d16446c5d86dec32ab1ad1f378581ad8",
+                "reference": "31dd3379d16446c5d86dec32ab1ad1f378581ad8",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.6",
-                "sebastian/recursion-context": "~2.0"
+                "php": "^7.0",
+                "sebastian/object-reflector": "^1.0",
+                "sebastian/recursion-context": "^3.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~5"
+                "phpunit/phpunit": "^6.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "3.0.x-dev"
                 }
             },
             "autoload": {
@@ -1201,32 +1308,77 @@
             ],
             "description": "Traverses array structures and object graphs to enumerate all referenced objects",
             "homepage": "https://github.com/sebastianbergmann/object-enumerator/",
-            "time": "2017-02-18T15:18:39+00:00"
+            "time": "2017-03-12 15:17:29"
+        },
+        {
+            "name": "sebastian/object-reflector",
+            "version": "1.1.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sebastianbergmann/object-reflector.git",
+                "reference": "773f97c67f28de00d397be301821b06708fca0be"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sebastianbergmann/object-reflector/zipball/773f97c67f28de00d397be301821b06708fca0be",
+                "reference": "773f97c67f28de00d397be301821b06708fca0be",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^6.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.1-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de"
+                }
+            ],
+            "description": "Allows reflection of object attributes, including inherited and non-public ones",
+            "homepage": "https://github.com/sebastianbergmann/object-reflector/",
+            "time": "2017-03-29 09:07:27"
         },
         {
             "name": "sebastian/recursion-context",
-            "version": "2.0.0",
+            "version": "3.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/recursion-context.git",
-                "reference": "2c3ba150cbec723aa057506e73a8d33bdb286c9a"
+                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/2c3ba150cbec723aa057506e73a8d33bdb286c9a",
-                "reference": "2c3ba150cbec723aa057506e73a8d33bdb286c9a",
+                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
+                "reference": "5b0cd723502bac3b006cbf3dbf7a1e3fcefe4fa8",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.3"
+                "php": "^7.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "~4.4"
+                "phpunit/phpunit": "^6.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.0.x-dev"
+                    "dev-master": "3.0.x-dev"
                 }
             },
             "autoload": {
@@ -1254,7 +1406,7 @@
             ],
             "description": "Provides functionality to recursively process PHP variables",
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
-            "time": "2016-11-19T07:33:16+00:00"
+            "time": "2017-03-03 06:23:57"
         },
         {
             "name": "sebastian/resource-operations",
@@ -1296,7 +1448,7 @@
             ],
             "description": "Provides a list of PHP built-in functions that operate on resources",
             "homepage": "https://www.github.com/sebastianbergmann/resource-operations",
-            "time": "2015-07-28T20:34:47+00:00"
+            "time": "2015-07-28 20:34:47"
         },
         {
             "name": "sebastian/version",
@@ -1339,20 +1491,20 @@
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
             "homepage": "https://github.com/sebastianbergmann/version",
-            "time": "2016-10-03T07:35:21+00:00"
+            "time": "2016-10-03 07:35:21"
         },
         {
             "name": "squizlabs/php_codesniffer",
-            "version": "2.8.1",
+            "version": "2.9.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/squizlabs/PHP_CodeSniffer.git",
-                "reference": "d7cf0d894e8aa4c73712ee4a331cc1eaa37cdc7d"
+                "reference": "dcbed1074f8244661eecddfc2a675430d8d33f62"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/d7cf0d894e8aa4c73712ee4a331cc1eaa37cdc7d",
-                "reference": "d7cf0d894e8aa4c73712ee4a331cc1eaa37cdc7d",
+                "url": "https://api.github.com/repos/squizlabs/PHP_CodeSniffer/zipball/dcbed1074f8244661eecddfc2a675430d8d33f62",
+                "reference": "dcbed1074f8244661eecddfc2a675430d8d33f62",
                 "shasum": ""
             },
             "require": {
@@ -1417,62 +1569,47 @@
                 "phpcs",
                 "standards"
             ],
-            "time": "2017-03-01T22:17:45+00:00"
+            "time": "2017-05-22 02:43:20"
         },
         {
-            "name": "symfony/yaml",
-            "version": "v3.2.6",
+            "name": "theseer/tokenizer",
+            "version": "1.1.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/yaml.git",
-                "reference": "093e416ad096355149e265ea2e4cc1f9ee40ab1a"
+                "url": "https://github.com/theseer/tokenizer.git",
+                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/093e416ad096355149e265ea2e4cc1f9ee40ab1a",
-                "reference": "093e416ad096355149e265ea2e4cc1f9ee40ab1a",
+                "url": "https://api.github.com/repos/theseer/tokenizer/zipball/cb2f008f3f05af2893a87208fe6a6c4985483f8b",
+                "reference": "cb2f008f3f05af2893a87208fe6a6c4985483f8b",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5.9"
-            },
-            "require-dev": {
-                "symfony/console": "~2.8|~3.0"
-            },
-            "suggest": {
-                "symfony/console": "For validating YAML files using the lint command"
+                "ext-dom": "*",
+                "ext-tokenizer": "*",
+                "ext-xmlwriter": "*",
+                "php": "^7.0"
             },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "3.2-dev"
-                }
-            },
             "autoload": {
-                "psr-4": {
-                    "Symfony\\Component\\Yaml\\": ""
-                },
-                "exclude-from-classmap": [
-                    "/Tests/"
+                "classmap": [
+                    "src/"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "MIT"
+                "BSD-3-Clause"
             ],
             "authors": [
                 {
-                    "name": "Fabien Potencier",
-                    "email": "fabien@symfony.com"
-                },
-                {
-                    "name": "Symfony Community",
-                    "homepage": "https://symfony.com/contributors"
+                    "name": "Arne Blankerts",
+                    "email": "arne@blankerts.de",
+                    "role": "Developer"
                 }
             ],
-            "description": "Symfony Yaml Component",
-            "homepage": "https://symfony.com",
-            "time": "2017-03-07T16:47:02+00:00"
+            "description": "A small library for converting tokenized PHP source code into XML and potentially other formats",
+            "time": "2017-04-07 12:08:54"
         },
         {
             "name": "webmozart/assert",
@@ -1522,7 +1659,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2016-11-23T20:04:58+00:00"
+            "time": "2016-11-23 20:04:58"
         },
         {
             "name": "zendframework/zend-cache",
@@ -1591,7 +1728,7 @@
                 "cache",
                 "zf2"
             ],
-            "time": "2016-12-16T11:35:47+00:00"
+            "time": "2016-12-16 11:35:47"
         },
         {
             "name": "zendframework/zend-coding-standard",
@@ -1620,7 +1757,7 @@
                 "Coding Standard",
                 "zf"
             ],
-            "time": "2016-11-09T21:30:43+00:00"
+            "time": "2016-11-09 21:30:43"
         },
         {
             "name": "zendframework/zend-config",
@@ -1676,7 +1813,7 @@
                 "config",
                 "zf2"
             ],
-            "time": "2016-02-04T23:01:10+00:00"
+            "time": "2016-02-04 23:01:10"
         },
         {
             "name": "zendframework/zend-db",
@@ -1733,7 +1870,7 @@
                 "db",
                 "zf2"
             ],
-            "time": "2016-08-09T19:28:55+00:00"
+            "time": "2016-08-09 19:28:55"
         },
         {
             "name": "zendframework/zend-escaper",
@@ -1777,7 +1914,7 @@
                 "escaper",
                 "zf2"
             ],
-            "time": "2016-06-30T19:48:38+00:00"
+            "time": "2016-06-30 19:48:38"
         },
         {
             "name": "zendframework/zend-eventmanager",
@@ -1831,20 +1968,20 @@
                 "events",
                 "zf2"
             ],
-            "time": "2016-12-19T21:47:12+00:00"
+            "time": "2016-12-19 21:47:12"
         },
         {
             "name": "zendframework/zend-filter",
-            "version": "2.7.1",
+            "version": "2.7.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-filter.git",
-                "reference": "84c50246428efb0a1e52868e162dab3e149d5b80"
+                "reference": "b8d0ff872f126631bf63a932e33aa2d22d467175"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/zend-filter/zipball/84c50246428efb0a1e52868e162dab3e149d5b80",
-                "reference": "84c50246428efb0a1e52868e162dab3e149d5b80",
+                "url": "https://api.github.com/repos/zendframework/zend-filter/zipball/b8d0ff872f126631bf63a932e33aa2d22d467175",
+                "reference": "b8d0ff872f126631bf63a932e33aa2d22d467175",
                 "shasum": ""
             },
             "require": {
@@ -1852,10 +1989,10 @@
                 "zendframework/zend-stdlib": "^2.7 || ^3.0"
             },
             "require-dev": {
-                "fabpot/php-cs-fixer": "1.7.*",
                 "pear/archive_tar": "^1.4",
-                "phpunit/phpunit": "~4.0",
-                "zendframework/zend-crypt": "^2.6",
+                "phpunit/phpunit": "^6.0.10 || ^5.7.17",
+                "zendframework/zend-coding-standard": "~1.0.0",
+                "zendframework/zend-crypt": "^2.6 || ^3.0",
                 "zendframework/zend-servicemanager": "^2.7.5 || ^3.0.3",
                 "zendframework/zend-uri": "^2.5"
             },
@@ -1891,7 +2028,7 @@
                 "filter",
                 "zf2"
             ],
-            "time": "2016-04-18T18:32:43+00:00"
+            "time": "2017-05-17 20:56:17"
         },
         {
             "name": "zendframework/zend-http",
@@ -1941,30 +2078,30 @@
                 "http",
                 "zf2"
             ],
-            "time": "2017-01-31T14:41:02+00:00"
+            "time": "2017-01-31 14:41:02"
         },
         {
             "name": "zendframework/zend-i18n",
-            "version": "2.7.3",
+            "version": "2.7.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-i18n.git",
-                "reference": "b2db0d8246a865c659f93199f90f5fc2cd2f3cd8"
+                "reference": "d3431e29cc00c2a1c6704e601d4371dbf24f6a31"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/zend-i18n/zipball/b2db0d8246a865c659f93199f90f5fc2cd2f3cd8",
-                "reference": "b2db0d8246a865c659f93199f90f5fc2cd2f3cd8",
+                "url": "https://api.github.com/repos/zendframework/zend-i18n/zipball/d3431e29cc00c2a1c6704e601d4371dbf24f6a31",
+                "reference": "d3431e29cc00c2a1c6704e601d4371dbf24f6a31",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5 || ^7.0",
+                "php": "^7.0 || ^5.6",
                 "zendframework/zend-stdlib": "^2.7 || ^3.0"
             },
             "require-dev": {
-                "fabpot/php-cs-fixer": "1.7.*",
-                "phpunit/phpunit": "~4.0",
+                "phpunit/phpunit": "^6.0.8 || ^5.7.15",
                 "zendframework/zend-cache": "^2.6.1",
+                "zendframework/zend-coding-standard": "~1.0.0",
                 "zendframework/zend-config": "^2.6",
                 "zendframework/zend-eventmanager": "^2.6.2 || ^3.0",
                 "zendframework/zend-filter": "^2.6.1",
@@ -2008,7 +2145,7 @@
                 "i18n",
                 "zf2"
             ],
-            "time": "2016-06-07T21:08:30+00:00"
+            "time": "2017-05-17 17:00:12"
         },
         {
             "name": "zendframework/zend-loader",
@@ -2052,7 +2189,7 @@
                 "loader",
                 "zf2"
             ],
-            "time": "2015-06-03T14:05:47+00:00"
+            "time": "2015-06-03 14:05:47"
         },
         {
             "name": "zendframework/zend-math",
@@ -2102,7 +2239,7 @@
                 "math",
                 "zf2"
             ],
-            "time": "2016-04-07T16:29:53+00:00"
+            "time": "2016-04-07 16:29:53"
         },
         {
             "name": "zendframework/zend-servicemanager",
@@ -2165,33 +2302,33 @@
                 "servicemanager",
                 "zf"
             ],
-            "time": "2017-03-01T22:08:02+00:00"
+            "time": "2017-03-01 22:08:02"
         },
         {
             "name": "zendframework/zend-session",
-            "version": "2.7.3",
+            "version": "2.8.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-session.git",
-                "reference": "346e9709657b81a5d53d70ce754730a26d1f02f2"
+                "reference": "b1486c382decc241de8b1c7778eaf2f0a884f67d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zendframework/zend-session/zipball/346e9709657b81a5d53d70ce754730a26d1f02f2",
-                "reference": "346e9709657b81a5d53d70ce754730a26d1f02f2",
+                "url": "https://api.github.com/repos/zendframework/zend-session/zipball/b1486c382decc241de8b1c7778eaf2f0a884f67d",
+                "reference": "b1486c382decc241de8b1c7778eaf2f0a884f67d",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5 || ^7.0",
+                "php": "^7.0 || ^5.6",
                 "zendframework/zend-eventmanager": "^2.6.2 || ^3.0",
                 "zendframework/zend-stdlib": "^2.7 || ^3.0"
             },
             "require-dev": {
                 "container-interop/container-interop": "^1.1",
-                "fabpot/php-cs-fixer": "1.7.*",
                 "mongodb/mongodb": "^1.0.1",
-                "phpunit/phpunit": "~4.0",
+                "phpunit/phpunit": "^6.0.8 || ^5.7.15",
                 "zendframework/zend-cache": "^2.6.1",
+                "zendframework/zend-coding-standard": "~1.0.0",
                 "zendframework/zend-db": "^2.7",
                 "zendframework/zend-http": "^2.5.4",
                 "zendframework/zend-servicemanager": "^2.7.5 || ^3.0.3",
@@ -2208,8 +2345,8 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.7-dev",
-                    "dev-develop": "2.8-dev"
+                    "dev-master": "2.8-dev",
+                    "dev-develop": "2.9-dev"
                 },
                 "zf": {
                     "component": "Zend\\Session",
@@ -2231,7 +2368,7 @@
                 "session",
                 "zf2"
             ],
-            "time": "2016-07-05T18:32:50+00:00"
+            "time": "2017-06-19 21:31:39"
         },
         {
             "name": "zendframework/zend-uri",
@@ -2278,7 +2415,7 @@
                 "uri",
                 "zf2"
             ],
-            "time": "2016-02-17T22:38:51+00:00"
+            "time": "2016-02-17 22:38:51"
         }
     ],
     "aliases": [],
diff --git a/src/Message.php b/src/Message.php
new file mode 100644
index 000000000..37abba0a3
--- /dev/null
+++ b/src/Message.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Zend\Validator;
+
+final class Message
+{
+    /**
+     * @var string
+     */
+    private $key;
+
+    /**
+     * @var string
+     */
+    private $template;
+
+    /**
+     * @var string|int|float
+     */
+    private $variables;
+
+    public function __construct(string $key, string $template, array $variables = [])
+    {
+        $this->key = $key;
+        $this->template = $template;
+        $this->variables = $variables;
+    }
+
+    public function getKey(): string
+    {
+        return $this->key;
+    }
+
+    public function getTemplate(): string
+    {
+        return $this->template;
+    }
+
+    public function getVariables(): array
+    {
+        return $this->variables;
+    }
+}
diff --git a/src/Result.php b/src/Result.php
new file mode 100644
index 000000000..8a44fd0c6
--- /dev/null
+++ b/src/Result.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Zend\Validator;
+
+final class Result
+{
+    /**
+     * @var bool
+     */
+    private $isValid;
+
+    /**
+     * @var Message[]
+     */
+    private $messages;
+
+    public function __construct(bool $isValid, array $messages)
+    {
+        $this->isValid = $isValid;
+        $this->messages = $messages;
+    }
+
+    public function isValid(): bool
+    {
+        return $this->isValid;
+    }
+
+    public function getMessages(): array
+    {
+        return $this->messages;
+    }
+}
diff --git a/src/ValidatorInterface.php b/src/ValidatorInterface.php
index 6424ef7a6..fb530de6e 100644
--- a/src/ValidatorInterface.php
+++ b/src/ValidatorInterface.php
@@ -12,27 +12,11 @@
 interface ValidatorInterface
 {
     /**
-     * Returns true if and only if $value meets the validation requirements
-     *
-     * If $value fails validation, then this method returns false, and
-     * getMessages() will return an array of messages that explain why the
-     * validation failed.
-     *
      * @param  mixed $value
-     * @return bool
-     * @throws Exception\RuntimeException If validation of $value is impossible
-     */
-    public function isValid($value);
-
-    /**
-     * Returns an array of messages that explain why the most recent isValid()
-     * call returned false. The array keys are validation failure message identifiers,
-     * and the array values are the corresponding human-readable message strings.
      *
-     * If isValid() was never called or if the most recent isValid() call
-     * returned true, then this method returns an empty array.
+     * @return Result
      *
-     * @return array
+     * @throws Exception\RuntimeException If validation of $value is impossible
      */
-    public function getMessages();
+    public function validate($value): Result;
 }