diff --git a/lang/cs/pom.xml b/lang/cs/pom.xml
index f3f8c36..3894cd0 100644
--- a/lang/cs/pom.xml
+++ b/lang/cs/pom.xml
@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../..</relativePath>
     </parent>
 </project>
diff --git a/lang/java/reef-annotations/pom.xml b/lang/java/reef-annotations/pom.xml
index bdc8927..7044664 100644
--- a/lang/java/reef-annotations/pom.xml
+++ b/lang/java/reef-annotations/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-applications/pom.xml b/lang/java/reef-applications/pom.xml
index c5b32fe..fb7d503 100644
--- a/lang/java/reef-applications/pom.xml
+++ b/lang/java/reef-applications/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-applications/reef-vortex/pom.xml b/lang/java/reef-applications/reef-vortex/pom.xml
index f14a9b4..16b7297 100644
--- a/lang/java/reef-applications/reef-vortex/pom.xml
+++ b/lang/java/reef-applications/reef-vortex/pom.xml
@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-applications</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
     </parent>
 
     <dependencies>
diff --git a/lang/java/reef-bridge-client/pom.xml b/lang/java/reef-bridge-client/pom.xml
index 65833c4..26d6190 100644
--- a/lang/java/reef-bridge-client/pom.xml
+++ b/lang/java/reef-bridge-client/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-bridge-java/pom.xml b/lang/java/reef-bridge-java/pom.xml
index afc2fc4..fead824 100644
--- a/lang/java/reef-bridge-java/pom.xml
+++ b/lang/java/reef-bridge-java/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-checkpoint/pom.xml b/lang/java/reef-checkpoint/pom.xml
index 845d85e..6c49390 100644
--- a/lang/java/reef-checkpoint/pom.xml
+++ b/lang/java/reef-checkpoint/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
     <artifactId>reef-checkpoint</artifactId>
diff --git a/lang/java/reef-common/pom.xml b/lang/java/reef-common/pom.xml
index f28c619..d896ca1 100644
--- a/lang/java/reef-common/pom.xml
+++ b/lang/java/reef-common/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-examples-clr/pom.xml b/lang/java/reef-examples-clr/pom.xml
index 4c7e9b1..a58e84c 100644
--- a/lang/java/reef-examples-clr/pom.xml
+++ b/lang/java/reef-examples-clr/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-examples-hdinsight/pom.xml b/lang/java/reef-examples-hdinsight/pom.xml
index c3a3b7b..bfbc9ed 100644
--- a/lang/java/reef-examples-hdinsight/pom.xml
+++ b/lang/java/reef-examples-hdinsight/pom.xml
@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-examples/pom.xml b/lang/java/reef-examples/pom.xml
index 1bdccc3..6d8ab57 100644
--- a/lang/java/reef-examples/pom.xml
+++ b/lang/java/reef-examples/pom.xml
@@ -25,7 +25,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-io/pom.xml b/lang/java/reef-io/pom.xml
index 64da4f0..c471498 100644
--- a/lang/java/reef-io/pom.xml
+++ b/lang/java/reef-io/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
     <artifactId>reef-io</artifactId>
diff --git a/lang/java/reef-poison/pom.xml b/lang/java/reef-poison/pom.xml
index 882798c..c4ddeab 100644
--- a/lang/java/reef-poison/pom.xml
+++ b/lang/java/reef-poison/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-runtime-hdinsight/pom.xml b/lang/java/reef-runtime-hdinsight/pom.xml
index 90b25dc..620f993 100644
--- a/lang/java/reef-runtime-hdinsight/pom.xml
+++ b/lang/java/reef-runtime-hdinsight/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
     <name>REEF Runtime for HDInsight</name>
diff --git a/lang/java/reef-runtime-local/pom.xml b/lang/java/reef-runtime-local/pom.xml
index a4f0eb1..bcb9feb 100644
--- a/lang/java/reef-runtime-local/pom.xml
+++ b/lang/java/reef-runtime-local/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-runtime-mesos/pom.xml b/lang/java/reef-runtime-mesos/pom.xml
index 191f681..2c725e3 100644
--- a/lang/java/reef-runtime-mesos/pom.xml
+++ b/lang/java/reef-runtime-mesos/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
     <name>REEF Runtime for Mesos</name>
diff --git a/lang/java/reef-runtime-yarn/pom.xml b/lang/java/reef-runtime-yarn/pom.xml
index 8811544..10e7cea 100644
--- a/lang/java/reef-runtime-yarn/pom.xml
+++ b/lang/java/reef-runtime-yarn/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
     <name>REEF Runtime for YARN</name>
diff --git a/lang/java/reef-tang/pom.xml b/lang/java/reef-tang/pom.xml
index 5c9cfac..45368ee 100644
--- a/lang/java/reef-tang/pom.xml
+++ b/lang/java/reef-tang/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-tang/tang-test-jarA/pom.xml b/lang/java/reef-tang/tang-test-jarA/pom.xml
index 30029a7..769bb76 100644
--- a/lang/java/reef-tang/tang-test-jarA/pom.xml
+++ b/lang/java/reef-tang/tang-test-jarA/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>tang-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
     </parent>
 
     <artifactId>tang-test-jarA</artifactId>
diff --git a/lang/java/reef-tang/tang-test-jarAB/pom.xml b/lang/java/reef-tang/tang-test-jarAB/pom.xml
index dc2889c..57f6665 100644
--- a/lang/java/reef-tang/tang-test-jarAB/pom.xml
+++ b/lang/java/reef-tang/tang-test-jarAB/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>tang-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
     </parent>
 
     <artifactId>tang-test-jarAB</artifactId>
diff --git a/lang/java/reef-tang/tang-test-jarB-conflictA/pom.xml b/lang/java/reef-tang/tang-test-jarB-conflictA/pom.xml
index 6dd6235..4d59289 100644
--- a/lang/java/reef-tang/tang-test-jarB-conflictA/pom.xml
+++ b/lang/java/reef-tang/tang-test-jarB-conflictA/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>tang-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
     </parent>
 
     <artifactId>tang-test-jarB-conflictA</artifactId>
diff --git a/lang/java/reef-tang/tang-test-jarB/pom.xml b/lang/java/reef-tang/tang-test-jarB/pom.xml
index fa5285b..e14da3a 100644
--- a/lang/java/reef-tang/tang-test-jarB/pom.xml
+++ b/lang/java/reef-tang/tang-test-jarB/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>tang-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
     </parent>
 
     <artifactId>tang-test-jarB</artifactId>
diff --git a/lang/java/reef-tang/tang/pom.xml b/lang/java/reef-tang/tang/pom.xml
index ee6b334..3e7b411 100644
--- a/lang/java/reef-tang/tang/pom.xml
+++ b/lang/java/reef-tang/tang/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>tang-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
     </parent>
 
     <artifactId>tang</artifactId>
diff --git a/lang/java/reef-tests/pom.xml b/lang/java/reef-tests/pom.xml
index 18ac2a3..285a71f 100644
--- a/lang/java/reef-tests/pom.xml
+++ b/lang/java/reef-tests/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-utils-hadoop/pom.xml b/lang/java/reef-utils-hadoop/pom.xml
index 6f98c02..d77516d 100644
--- a/lang/java/reef-utils-hadoop/pom.xml
+++ b/lang/java/reef-utils-hadoop/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-utils/pom.xml b/lang/java/reef-utils/pom.xml
index fd3de52..80adead 100644
--- a/lang/java/reef-utils/pom.xml
+++ b/lang/java/reef-utils/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-wake/pom.xml b/lang/java/reef-wake/pom.xml
index 2533df1..9ad6fcc 100644
--- a/lang/java/reef-wake/pom.xml
+++ b/lang/java/reef-wake/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
 
diff --git a/lang/java/reef-wake/wake/pom.xml b/lang/java/reef-wake/wake/pom.xml
index 587967c..763eb77 100644
--- a/lang/java/reef-wake/wake/pom.xml
+++ b/lang/java/reef-wake/wake/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>wake-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
     </parent>
 
     <build>
diff --git a/lang/java/reef-webserver/pom.xml b/lang/java/reef-webserver/pom.xml
index e7b30cd..ed4673b 100644
--- a/lang/java/reef-webserver/pom.xml
+++ b/lang/java/reef-webserver/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>../../..</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/pom.xml b/pom.xml
index b67515a..db0aafb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
 
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.apache.reef</groupId>
-    <version>0.12.0-incubating</version>
+    <version>0.13.0-incubating-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>REEF</name>
     <artifactId>reef-project</artifactId>
@@ -60,7 +60,7 @@
         <connection>scm:git:git@github.com:apache/incubator-reef</connection>
         <developerConnection>scm:git:https://git-wip-us.apache.org/repos/asf/incubator-reef</developerConnection>
         <url>scm:git:git@github.com:apache/incubator-reef</url>
-        <tag>reef-project-0.12.0-incubating</tag>
+        <tag>HEAD</tag>
     </scm>
 
     <developers>
diff --git a/website/pom.xml b/website/pom.xml
index 056190b..650c6a9 100644
--- a/website/pom.xml
+++ b/website/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.reef</groupId>
         <artifactId>reef-project</artifactId>
-        <version>0.12.0-incubating</version>
+        <version>0.13.0-incubating-SNAPSHOT</version>
         <relativePath>..</relativePath>
     </parent>