[maven-release-plugin] prepare for next development iteration
diff --git a/pom.xml b/pom.xml
index f45f249..41fc5bd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@
 
     <groupId>org.apache.samoa</groupId>
     <artifactId>samoa</artifactId>
-    <version>0.3.0-incubating</version>
+    <version>0.4.0-incubating-SNAPSHOT</version>
 
     <organization>
         <name>The Apache Software Foundation</name>
@@ -41,7 +41,7 @@
         <url>https://git-wip-us.apache.org/repos/asf/incubator-samoa.git</url>
         <connection>scm:git:https://git-wip-us.apache.org/repos/asf/incubator-samoa.git</connection>
         <developerConnection>scm:git:https://git-wip-us.apache.org/repos/asf/incubator-samoa.git</developerConnection>
-        <tag>v0.3.0-incubating</tag>
+        <tag>HEAD</tag>
     </scm>
 
     <profiles>
diff --git a/samoa-api/pom.xml b/samoa-api/pom.xml
index af4a8cd..f40a74e 100644
--- a/samoa-api/pom.xml
+++ b/samoa-api/pom.xml
@@ -32,7 +32,7 @@
   <parent>
     <groupId>org.apache.samoa</groupId>
     <artifactId>samoa</artifactId>
-    <version>0.3.0-incubating</version>
+    <version>0.4.0-incubating-SNAPSHOT</version>
   </parent>
 
   <dependencies>
diff --git a/samoa-flink/pom.xml b/samoa-flink/pom.xml
index 3dec01e..f0266fa 100644
--- a/samoa-flink/pom.xml
+++ b/samoa-flink/pom.xml
@@ -33,7 +33,7 @@
   <parent>
     <groupId>org.apache.samoa</groupId>
     <artifactId>samoa</artifactId>
-    <version>0.3.0-incubating</version>
+    <version>0.4.0-incubating-SNAPSHOT</version>
   </parent>
 
       <repositories>
diff --git a/samoa-instances/pom.xml b/samoa-instances/pom.xml
index d9344fe..ed24597 100644
--- a/samoa-instances/pom.xml
+++ b/samoa-instances/pom.xml
@@ -32,6 +32,6 @@
   <parent>
     <groupId>org.apache.samoa</groupId>
     <artifactId>samoa</artifactId>
-    <version>0.3.0-incubating</version>
+    <version>0.4.0-incubating-SNAPSHOT</version>
   </parent>
 </project>
diff --git a/samoa-local/pom.xml b/samoa-local/pom.xml
index 85ab5ec..4690778 100644
--- a/samoa-local/pom.xml
+++ b/samoa-local/pom.xml
@@ -31,7 +31,7 @@
   <parent>
     <groupId>org.apache.samoa</groupId>
     <artifactId>samoa</artifactId>
-    <version>0.3.0-incubating</version>
+    <version>0.4.0-incubating-SNAPSHOT</version>
   </parent>
 
   <dependencies>
diff --git a/samoa-s4/pom.xml b/samoa-s4/pom.xml
index daea0d9..f3e24a3 100644
--- a/samoa-s4/pom.xml
+++ b/samoa-s4/pom.xml
@@ -32,7 +32,7 @@
   <parent>
     <groupId>org.apache.samoa</groupId>
     <artifactId>samoa</artifactId>
-    <version>0.3.0-incubating</version>
+    <version>0.4.0-incubating-SNAPSHOT</version>
   </parent>
 
   <dependencies>
diff --git a/samoa-samza/pom.xml b/samoa-samza/pom.xml
index 4ad0797..945ae39 100644
--- a/samoa-samza/pom.xml
+++ b/samoa-samza/pom.xml
@@ -32,7 +32,7 @@
   <parent>
     <groupId>org.apache.samoa</groupId>
     <artifactId>samoa</artifactId>
-    <version>0.3.0-incubating</version>
+    <version>0.4.0-incubating-SNAPSHOT</version>
   </parent>
 
   <dependencies>
diff --git a/samoa-storm/pom.xml b/samoa-storm/pom.xml
index 80f2416..2cb1566 100644
--- a/samoa-storm/pom.xml
+++ b/samoa-storm/pom.xml
@@ -32,7 +32,7 @@
   <parent>
     <groupId>org.apache.samoa</groupId>
     <artifactId>samoa</artifactId>
-    <version>0.3.0-incubating</version>
+    <version>0.4.0-incubating-SNAPSHOT</version>
   </parent>
 
   <repositories>
diff --git a/samoa-test/pom.xml b/samoa-test/pom.xml
index f2eacb9..ec51712 100644
--- a/samoa-test/pom.xml
+++ b/samoa-test/pom.xml
@@ -29,7 +29,7 @@
   <parent>
     <artifactId>samoa</artifactId>
     <groupId>org.apache.samoa</groupId>
-    <version>0.3.0-incubating</version>
+    <version>0.4.0-incubating-SNAPSHOT</version>
   </parent>
 
   <dependencies>
diff --git a/samoa-threads/pom.xml b/samoa-threads/pom.xml
index eaccb22..79d3dab 100644
--- a/samoa-threads/pom.xml
+++ b/samoa-threads/pom.xml
@@ -32,7 +32,7 @@
   <parent>
     <groupId>org.apache.samoa</groupId>
     <artifactId>samoa</artifactId>
-    <version>0.3.0-incubating</version>
+    <version>0.4.0-incubating-SNAPSHOT</version>
   </parent>
 
   <dependencies>