diff --git a/README.md b/README.md
index a6896abbebcc..746192466de7 100644
--- a/README.md
+++ b/README.md
@@ -108,7 +108,7 @@ Stable:
 <dependency>
     <groupId>org.gradoop</groupId>
     <artifactId>gradoop-flink</artifactId>
-    <version>0.3.2</version>
+    <version>0.4.0</version>
 </dependency>
 ```
 
@@ -185,14 +185,7 @@ Used to maintain the code style for the whole project.
     
 ### Version History
 
-* 0.0.1 first prototype using Hadoop MapReduce and Apache Giraph for operator
- processing
-* 0.0.2 support for HBase as distributed graph storage
-* 0.0.3 Apache Flink replaces MapReduce and Giraph as operator implementation
- layer and distributed execution engine
-* 0.1 Major refactoring of internal EPGM representation (e.g. ID and property handling), Equality Operators, GDL-based unit testing
-* 0.2.0 Pattern Matching and Frequent Subgraph Mining algorithms
-* 0.3.1 Bug fixes and support for more Gelly algorithms
+See the [Changelog](https://github.com/dbs-leipzig/gradoop/wiki/Changelog) at the Wiki pages. 
 
 ### Disclaimer
 
diff --git a/gradoop-checkstyle/pom.xml b/gradoop-checkstyle/pom.xml
index d33f2af8168c..2758d1c5cdac 100644
--- a/gradoop-checkstyle/pom.xml
+++ b/gradoop-checkstyle/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.gradoop</groupId>
         <artifactId>gradoop-parent</artifactId>
-        <version>0.3.3-SNAPSHOT</version>
+        <version>0.4.0</version>
     </parent>
 
     <artifactId>gradoop-checkstyle</artifactId>
diff --git a/gradoop-common/pom.xml b/gradoop-common/pom.xml
index edbfdfa20167..00959686cd35 100644
--- a/gradoop-common/pom.xml
+++ b/gradoop-common/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.gradoop</groupId>
         <artifactId>gradoop-parent</artifactId>
-        <version>0.3.3-SNAPSHOT</version>
+        <version>0.4.0</version>
     </parent>
 
     <artifactId>gradoop-common</artifactId>
diff --git a/gradoop-examples/pom.xml b/gradoop-examples/pom.xml
index eb2b52e7ed12..31b384f20b58 100644
--- a/gradoop-examples/pom.xml
+++ b/gradoop-examples/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.gradoop</groupId>
         <artifactId>gradoop-parent</artifactId>
-        <version>0.3.3-SNAPSHOT</version>
+        <version>0.4.0</version>
     </parent>
 
     <artifactId>gradoop-examples</artifactId>
diff --git a/gradoop-flink/pom.xml b/gradoop-flink/pom.xml
index 2ebf257b5a1d..3e8a6d11f251 100644
--- a/gradoop-flink/pom.xml
+++ b/gradoop-flink/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.gradoop</groupId>
         <artifactId>gradoop-parent</artifactId>
-        <version>0.3.3-SNAPSHOT</version>
+        <version>0.4.0</version>
     </parent>
 
     <artifactId>gradoop-flink</artifactId>
diff --git a/gradoop-store/gradoop-accumulo/pom.xml b/gradoop-store/gradoop-accumulo/pom.xml
index 46876309ebc5..7ac11876268f 100644
--- a/gradoop-store/gradoop-accumulo/pom.xml
+++ b/gradoop-store/gradoop-accumulo/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>gradoop-store</artifactId>
         <groupId>org.gradoop</groupId>
-        <version>0.3.3-SNAPSHOT</version>
+        <version>0.4.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/gradoop-store/gradoop-hbase/pom.xml b/gradoop-store/gradoop-hbase/pom.xml
index 151f387f1815..7b547b0066ec 100644
--- a/gradoop-store/gradoop-hbase/pom.xml
+++ b/gradoop-store/gradoop-hbase/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>gradoop-store</artifactId>
         <groupId>org.gradoop</groupId>
-        <version>0.3.3-SNAPSHOT</version>
+        <version>0.4.0</version>
     </parent>
 
     <artifactId>gradoop-hbase</artifactId>
diff --git a/gradoop-store/gradoop-store-api/pom.xml b/gradoop-store/gradoop-store-api/pom.xml
index 0c551ebd4e74..2e6cb66c402a 100644
--- a/gradoop-store/gradoop-store-api/pom.xml
+++ b/gradoop-store/gradoop-store-api/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>gradoop-store</artifactId>
         <groupId>org.gradoop</groupId>
-        <version>0.3.3-SNAPSHOT</version>
+        <version>0.4.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/gradoop-store/pom.xml b/gradoop-store/pom.xml
index a6f6f2da47c3..924180ace3ca 100644
--- a/gradoop-store/pom.xml
+++ b/gradoop-store/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>gradoop-parent</artifactId>
         <groupId>org.gradoop</groupId>
-        <version>0.3.3-SNAPSHOT</version>
+        <version>0.4.0</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/pom.xml b/pom.xml
index 9f55a0dc474b..b86fa6c7de1e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
     <groupId>org.gradoop</groupId>
     <artifactId>gradoop-parent</artifactId>
     <packaging>pom</packaging>
-    <version>0.3.3-SNAPSHOT</version>
+    <version>0.4.0</version>
 
     <name>Gradoop Parent</name>
     <url>http://www.gradoop.org</url>
@@ -198,7 +198,7 @@
                         <configuration>
                             <serverId>release_artifacts_gradoop</serverId>
                             <nexusUrl>https://oss.sonatype.org/</nexusUrl>
-                            <autoReleaseAfterClose>true</autoReleaseAfterClose>
+                            <autoReleaseAfterClose>false</autoReleaseAfterClose>
                         </configuration>
                     </plugin>
                 </plugins>