diff --git a/Classes/Command/SequenceCommandController.php b/Classes/Command/SequenceCommandController.php
new file mode 100644
index 0000000..ebea1f6
--- /dev/null
+++ b/Classes/Command/SequenceCommandController.php
@@ -0,0 +1,33 @@
+<?php
+namespace DigiComp\Sequence\Command;
+
+use DigiComp\Sequence\Service\SequenceGenerator;
+use Neos\Flow\Annotations as Flow;
+use Neos\Flow\Cli\CommandController;
+
+/**
+ * A database agnostic SequenceNumber generator
+ *
+ * @Flow\Scope("singleton")
+ */
+class SequenceCommandController extends CommandController
+{
+    /**
+     * @var SequenceGenerator
+     * @Flow\Inject
+     */
+    protected $sequenceGenerator;
+
+    /**
+     * Sets minimum number for sequence generator
+     *
+     * @param int $to
+     * @param string $type
+     */
+    public function advanceCommand($to, $type)
+    {
+        $this->sequenceGenerator->advanceTo($to, $type);
+    }
+
+    // TODO: make clean up job to delete all but the biggest number to save resources
+}
diff --git a/Classes/DigiComp/Sequence/Command/SequenceCommandController.php b/Classes/DigiComp/Sequence/Command/SequenceCommandController.php
deleted file mode 100644
index 4f55521..0000000
--- a/Classes/DigiComp/Sequence/Command/SequenceCommandController.php
+++ /dev/null
@@ -1,38 +0,0 @@
-<?php
-namespace DigiComp\Sequence\Command;
-
-/*                                                                        *
- * This script belongs to the FLOW3 package "DigiComp.Sequence".          *
- *                                                                        *
- *                                                                        */
-
-use TYPO3\Flow\Annotations as Flow;
-use TYPO3\Flow\Cli\CommandController;
-
-/**
- * A database agnostic SequenceNumber generator
- *
- * @Flow\Scope("singleton")
- */
-class SequenceCommandController extends CommandController
-{
-
-    /**
-     * @var \DigiComp\Sequence\Service\SequenceGenerator
-     * @Flow\Inject
-     */
-    protected $sequenceGenerator;
-
-    /**
-     * Sets minimum number for sequence generator
-     *
-     * @param int    $to
-     * @param string $type
-     */
-    public function advanceCommand($to, $type)
-    {
-        $this->sequenceGenerator->advanceTo($to, $type);
-    }
-
-    //TODO: make clean up job to delete all but the biggest number to save resources
-}
diff --git a/Classes/DigiComp/Sequence/Service/Exception.php b/Classes/DigiComp/Sequence/Service/Exception.php
deleted file mode 100644
index 6b21953..0000000
--- a/Classes/DigiComp/Sequence/Service/Exception.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-namespace DigiComp\Sequence\Service;
-
-/*                                                                        *
- * This script belongs to the FLOW3 package "DigiComp.Sequence".          *
- *                                                                        *
- *                                                                        */
-
-use TYPO3\Flow\Annotations as Flow;
-
-/**
- * SequenceException
- */
-class Exception extends \Exception
-{
-
-}
diff --git a/Classes/DigiComp/Sequence/Domain/Model/Insert.php b/Classes/Domain/Model/Insert.php
similarity index 75%
rename from Classes/DigiComp/Sequence/Domain/Model/Insert.php
rename to Classes/Domain/Model/Insert.php
index 2ebdc0a..31a9b6a 100644
--- a/Classes/DigiComp/Sequence/Domain/Model/Insert.php
+++ b/Classes/Domain/Model/Insert.php
@@ -1,13 +1,8 @@
 <?php
 namespace DigiComp\Sequence\Domain\Model;
 
-/*                                                                        *
- * This script belongs to the FLOW3 package "DigiComp.Sequence".          *
- *                                                                        *
- *                                                                        */
-
-use TYPO3\Flow\Annotations as Flow;
 use Doctrine\ORM\Mapping as ORM;
+use Neos\Flow\Annotations as Flow;
 
 /**
  * SequenceInsert
@@ -19,29 +14,36 @@ use Doctrine\ORM\Mapping as ORM;
  */
 class Insert
 {
-
     /**
      * @var int
-     * @ORM\Id
      * @Flow\Identity
+     * @ORM\Id
      */
     protected $number;
 
     /**
      * @var string
-     * @ORM\Id
      * @Flow\Identity
+     * @ORM\Id
      */
     protected $type;
 
     /**
-     * @param int    $number
+     * @param int $number
      * @param string|object $type
      */
     public function __construct($number, $type)
     {
-        $this->setType($type);
         $this->setNumber($number);
+        $this->setType($type);
+    }
+
+    /**
+     * @return int
+     */
+    public function getNumber()
+    {
+        return $this->number;
     }
 
     /**
@@ -53,11 +55,11 @@ class Insert
     }
 
     /**
-     * @return int
+     * @return string
      */
-    public function getNumber()
+    public function getType()
     {
-        return $this->number;
+        return $this->type;
     }
 
     /**
@@ -70,12 +72,4 @@ class Insert
         }
         $this->type = $type;
     }
-
-    /**
-     * @return string
-     */
-    public function getType()
-    {
-        return $this->type;
-    }
 }
diff --git a/Classes/Service/Exception.php b/Classes/Service/Exception.php
new file mode 100644
index 0000000..0a46197
--- /dev/null
+++ b/Classes/Service/Exception.php
@@ -0,0 +1,12 @@
+<?php
+namespace DigiComp\Sequence\Service;
+
+use Neos\Flow\Annotations as Flow;
+
+/**
+ * SequenceException
+ */
+class Exception extends \Exception
+{
+
+}
diff --git a/Classes/DigiComp/Sequence/Service/SequenceGenerator.php b/Classes/Service/SequenceGenerator.php
similarity index 68%
rename from Classes/DigiComp/Sequence/Service/SequenceGenerator.php
rename to Classes/Service/SequenceGenerator.php
index e8452ee..8894beb 100644
--- a/Classes/DigiComp/Sequence/Service/SequenceGenerator.php
+++ b/Classes/Service/SequenceGenerator.php
@@ -1,18 +1,17 @@
 <?php
 namespace DigiComp\Sequence\Service;
 
-/*                                                                        *
- * This script belongs to the FLOW3 package "DigiComp.Sequence".          *
- *                                                                        *
- *                                                                        */
-
+use Doctrine\Common\Persistence\ObjectManager;
 use Doctrine\DBAL\DBALException;
-use TYPO3\Flow\Annotations as Flow;
+use Doctrine\ORM\EntityManager;
+use Neos\Flow\Annotations as Flow;
+use Neos\Flow\Log\SystemLoggerInterface;
+use Neos\Flow\Reflection\ReflectionService;
+use Neos\Utility\TypeHandling;
 
 /**
  * A SequenceNumber generator working for transactional databases
  *
- *
  * Thoughts: We could make the step-range configurable, and if > 1 we could return new keys immediately for this
  * request, as we "reserved" the space between.
  *
@@ -20,21 +19,20 @@ use TYPO3\Flow\Annotations as Flow;
  */
 class SequenceGenerator
 {
-
     /**
-     * @var \Doctrine\Common\Persistence\ObjectManager
+     * @var ObjectManager
      * @Flow\Inject
      */
     protected $entityManager;
 
     /**
-     * @var \TYPO3\Flow\Reflection\ReflectionService
+     * @var ReflectionService
      * @Flow\Inject
      */
     protected $reflectionService;
 
     /**
-     * @var \TYPO3\Flow\Log\SystemLoggerInterface
+     * @var SystemLoggerInterface
      * @Flow\Inject
      */
     protected $systemLogger;
@@ -42,7 +40,8 @@ class SequenceGenerator
     /**
      * @param string|object $type
      *
-     * @throws \DigiComp\Sequence\Service\Exception
+     * @throws Exception
+     *
      * @return int
      */
     public function getNextNumberFor($type)
@@ -50,18 +49,25 @@ class SequenceGenerator
         $type = $this->inferTypeFromSource($type);
         $count = $this->getLastNumberFor($type);
 
-        //TODO: Check for maximal tries, or similar
-        //TODO: Let increment be configurable per type
+        // TODO: Check for maximal tries, or similar
+        // TODO: Let increment be configurable per type
         do {
-            $count = $count + 1;
-        } while (!$this->validateFreeNumber($count, $type));
+            $count++;
+        } while (! $this->validateFreeNumber($count, $type));
+
         return $count;
     }
 
+    /**
+     * @param int $count
+     * @param string|object $type
+     *
+     * @return bool
+     */
     protected function validateFreeNumber($count, $type)
     {
+        /** @var $em EntityManager */
         $em = $this->entityManager;
-        /** @var $em \Doctrine\ORM\EntityManager */
         try {
             $em->getConnection()->insert(
                 'digicomp_sequence_domain_model_insert',
@@ -73,18 +79,27 @@ class SequenceGenerator
         } catch (DBALException $e) {
             if ($e->getPrevious() && $e->getPrevious() instanceof \PDOException) {
                 // Do nothing, new Doctrine handling hides the above error
-            } else {
+            }
+            else {
                 $this->systemLogger->logException($e);
             }
         } catch (\Exception $e) {
             $this->systemLogger->logException($e);
         }
+
         return false;
     }
 
+    /**
+     * @param int $to
+     * @param string|object $type
+     *
+     * @return bool
+     */
     public function advanceTo($to, $type)
     {
         $type = $this->inferTypeFromSource($type);
+
         return ($this->validateFreeNumber($to, $type));
     }
 
@@ -95,16 +110,16 @@ class SequenceGenerator
      */
     public function getLastNumberFor($type)
     {
-        $type = $this->inferTypeFromSource($type);
-        /** @var $em \Doctrine\ORM\EntityManager */
+        /** @var $em EntityManager */
         $em = $this->entityManager;
 
         $result = $em->getConnection()->executeQuery(
             'SELECT MAX(number) AS count FROM digicomp_sequence_domain_model_insert WHERE type=:type',
-            ['type' => $type]
+            ['type' => $this->inferTypeFromSource($type)]
         );
         $count = $result->fetchAll();
         $count = $count[0]['count'];
+
         return $count;
     }
 
@@ -112,15 +127,18 @@ class SequenceGenerator
      * @param string|object $stringOrObject
      *
      * @throws Exception
+     *
      * @return string
      */
-    protected function inferTypeFromSource($stringOrObject) {
+    protected function inferTypeFromSource($stringOrObject)
+    {
         if (is_object($stringOrObject)) {
-            $stringOrObject = $this->reflectionService->getClassNameByObject($stringOrObject);
+            $stringOrObject = TypeHandling::getTypeForValue($stringOrObject);
         }
-        if (!$stringOrObject) {
+        if (! $stringOrObject) {
             throw new Exception('No Type given');
         }
+
         return $stringOrObject;
     }
 }
diff --git a/Configuration/Testing/Settings.yaml b/Configuration/Testing/Settings.yaml
index b72d1a0..54d2680 100644
--- a/Configuration/Testing/Settings.yaml
+++ b/Configuration/Testing/Settings.yaml
@@ -1,6 +1,6 @@
-TYPO3:
+Neos:
   Flow:
     persistence:
       backendOptions:
         driver: 'pdo_sqlite'
-        path: %FLOW_PATH_DATA%/Temporary/testing.db
\ No newline at end of file
+        path: '%FLOW_PATH_DATA%/Temporary/testing.db'
diff --git a/Migrations/Mysql/Version20140505093853.php b/Migrations/Mysql/Version20140505093853.php
index ad24715..d003d3a 100644
--- a/Migrations/Mysql/Version20140505093853.php
+++ b/Migrations/Mysql/Version20140505093853.php
@@ -1,5 +1,5 @@
 <?php
-namespace TYPO3\Flow\Persistence\Doctrine\Migrations;
+namespace Neos\Flow\Persistence\Doctrine\Migrations;
 
 use Doctrine\DBAL\Migrations\AbstractMigration,
     Doctrine\DBAL\Schema\Schema;
diff --git a/Migrations/Mysql/Version20160624203903.php b/Migrations/Mysql/Version20160624203903.php
index 170882a..3ef35a5 100644
--- a/Migrations/Mysql/Version20160624203903.php
+++ b/Migrations/Mysql/Version20160624203903.php
@@ -1,5 +1,5 @@
 <?php
-namespace TYPO3\Flow\Persistence\Doctrine\Migrations;
+namespace Neos\Flow\Persistence\Doctrine\Migrations;
 
 use Doctrine\DBAL\Migrations\AbstractMigration;
 use Doctrine\DBAL\Schema\Schema;
diff --git a/Tests/Functional/SequenceTest.php b/Tests/Functional/SequenceTest.php
index 26d02b8..2ea6586 100644
--- a/Tests/Functional/SequenceTest.php
+++ b/Tests/Functional/SequenceTest.php
@@ -2,11 +2,13 @@
 namespace DigiComp\Sequence\Tests\Functional;
 
 use DigiComp\Sequence\Service\SequenceGenerator;
-use TYPO3\Flow\Tests\FunctionalTestCase;
+use Neos\Flow\Tests\FunctionalTestCase;
 
 class SequenceTest extends FunctionalTestCase
 {
-
+    /**
+     * @var bool
+     */
     protected static $testablePersistenceEnabled = true;
 
     /**
@@ -20,12 +22,13 @@ class SequenceTest extends FunctionalTestCase
         $this->assertEquals(0, $number);
         $this->assertEquals(1, $sequenceGenerator->getNextNumberFor($sequenceGenerator));
 
-        $pids = [];
+        $pIds = [];
         for ($i = 0; $i < 10; $i++) {
-            $pid = pcntl_fork();
-            if ($pid) {
-                $pids[] = $pid;
-            } else {
+            $pId = pcntl_fork();
+            if ($pId) {
+                $pIds[] = $pId;
+            }
+            else {
                 for ($j = 0; $j < 10; $j++) {
                     $sequenceGenerator->getNextNumberFor($sequenceGenerator);
                 }
@@ -33,10 +36,12 @@ class SequenceTest extends FunctionalTestCase
                 exit;
             }
         }
-        foreach ($pids as $pid) {
+
+        foreach ($pIds as $pId) {
             $status = 0;
-            pcntl_waitpid($pid, $status);
+            pcntl_waitpid($pId, $status);
         }
+
         $this->assertEquals(101, $sequenceGenerator->getLastNumberFor($sequenceGenerator));
     }
 
diff --git a/composer.json b/composer.json
index d849b12..d0a7d63 100644
--- a/composer.json
+++ b/composer.json
@@ -1,50 +1,71 @@
 {
-  "name": "digicomp/sequence",
-  "type": "typo3-flow-package",
-  "description": "Sequence is a very simple database agnostic but database based sequence generator",
-  "keywords": ["flow", "neos", "doctrine", "sequence"],
-  "authors": [
-    {
-      "name": "Ferdinand Kuhl",
-      "email": "f.kuhl@digital-competence.de",
-      "homepage": "http://www.digital-competence.de",
-      "role": "Developer"
-    }
-  ],
-  "license": "MIT",
-  "homepage": "https://github.com/digicomp/DigiComp.Sequence",
-  "require": {
-    "typo3/flow": "~2.0|~3.0"
-  },
-  "require-dev": {
-    "phpunit/phpunit": "3.7.*",
-    "ext-pcntl": "*"
-  },
-  "autoload": {
-    "psr-0": {
-      "DigiComp\\Sequence": "Classes"
-    }
-  },
-  "extra": {
-    "branch-alias": {
-      "dev-master": "1.1.x-dev"
+    "name": "digicomp/sequence",
+    "type": "neos-package",
+    "description": "Sequence is a very simple database agnostic but database based sequence generator",
+    "keywords": [
+        "flow",
+        "neos",
+        "doctrine",
+        "sequence"
+    ],
+    "authors": [
+        {
+            "name": "Ferdinand Kuhl",
+            "email": "f.kuhl@digital-competence.de",
+            "homepage": "http://www.digital-competence.de",
+            "role": "Developer"
+        }
+    ],
+    "license": "MIT",
+    "homepage": "https://github.com/digicomp/DigiComp.Sequence",
+    "require": {
+        "neos/flow": "~4.1"
     },
-    "applied-flow-migrations": [
-      "Inwebs.Basket-201409170938",
-      "TYPO3.FLOW3-201201261636",
-      "TYPO3.Fluid-201205031303",
-      "TYPO3.FLOW3-201205292145",
-      "TYPO3.FLOW3-201206271128",
-      "TYPO3.FLOW3-201209201112",
-      "TYPO3.Flow-201209251426",
-      "TYPO3.Flow-201211151101",
-      "TYPO3.Flow-201212051340",
-      "TYPO3.Flow-201310031523",
-      "TYPO3.Flow-201405111147",
-      "TYPO3.Fluid-20141113120800",
-      "TYPO3.Flow-20141113121400",
-      "TYPO3.Fluid-20141121091700",
-      "TYPO3.Fluid-20150214130800"
-    ]
-  }
-}
\ No newline at end of file
+    "require-dev": {
+        "phpunit/phpunit": "3.7.*",
+        "ext-pcntl": "*"
+    },
+    "autoload": {
+        "psr-4": {
+            "DigiComp\\Sequence\\": "Classes"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.1.x-dev",
+            "dev-feature/neos-flow4": "2.0.x-dev"
+        },
+        "applied-flow-migrations": [
+            "Inwebs.Basket-201409170938",
+            "TYPO3.FLOW3-201201261636",
+            "TYPO3.Fluid-201205031303",
+            "TYPO3.FLOW3-201205292145",
+            "TYPO3.FLOW3-201206271128",
+            "TYPO3.FLOW3-201209201112",
+            "TYPO3.Flow-201209251426",
+            "TYPO3.Flow-201211151101",
+            "TYPO3.Flow-201212051340",
+            "TYPO3.Flow-201310031523",
+            "TYPO3.Flow-201405111147",
+            "TYPO3.Fluid-20141113120800",
+            "TYPO3.Flow-20141113121400",
+            "TYPO3.Fluid-20141121091700",
+            "TYPO3.Fluid-20150214130800",
+            "TYPO3.Flow-20151113161300",
+            "TYPO3.Flow-20161115140400",
+            "TYPO3.Flow-20161115140430",
+            "Neos.Flow-20161124204700",
+            "Neos.Flow-20161124204701",
+            "Neos.Flow-20161124224015",
+            "Neos.Eel-20161124230101",
+            "Neos.Imagine-20161124231742",
+            "Neos.Media-20161124233100",
+            "Neos.Flow-20161125124112",
+            "Neos.SwiftMailer-20161130105617",
+            "TYPO3.FluidAdaptor-20161130112935",
+            "Neos.Media-20161219094126",
+            "Neos.Flow-20170125103800",
+            "Neos.Flow-20170127183102"
+        ]
+    }
+}