diff --git a/broker/pom.xml b/broker/pom.xml
index ebcd9153..341458d6 100755
--- a/broker/pom.xml
+++ b/broker/pom.xml
@@ -5,7 +5,7 @@
         <relativePath>../</relativePath>
         <artifactId>wildfirechat-parent</artifactId>
         <groupId>cn.wildfirechat</groupId>
-        <version>0.11</version>
+        <version>0.12</version>
     </parent>
 
     <artifactId>moquette-broker</artifactId>
diff --git a/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java b/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
index 8cf044c1..305cd066 100755
--- a/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
+++ b/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
@@ -766,7 +766,7 @@ public class MemoryMessagesStore implements IMessagesStore {
 
         groupMembers.remove(groupId);
         mIMap.remove(groupId);
-        
+
         databaseStore.removeGroupMemberFromDB(groupId);
 
         return ErrorCode.ERROR_CODE_SUCCESS;
diff --git a/build.sh b/build.sh
new file mode 100644
index 00000000..4aa1d5b0
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+mvn clean install -Dmaven.test.skip=true
diff --git a/client/pom.xml b/client/pom.xml
index fff3e2ec..10f40d7a 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -6,7 +6,7 @@
         <relativePath>../</relativePath>
         <artifactId>wildfirechat-parent</artifactId>
         <groupId>cn.wildfirechat</groupId>
-        <version>0.11</version>
+        <version>0.12</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
 
diff --git a/distribution/pom.xml b/distribution/pom.xml
index fdbf10a7..06f60987 100755
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -6,7 +6,7 @@
         <!--<relativePath>../pom.xml</relativePath>-->
         <artifactId>wildfirechat-parent</artifactId>
         <groupId>cn.wildfirechat</groupId>
-        <version>0.11</version>
+        <version>0.12</version>
     </parent>
 
     <artifactId>distribution</artifactId>
diff --git a/distribution/src/main/assembly/assembly.xml b/distribution/src/main/assembly/assembly.xml
index 9f5a0241..b68c1d99 100755
--- a/distribution/src/main/assembly/assembly.xml
+++ b/distribution/src/main/assembly/assembly.xml
@@ -22,11 +22,6 @@
             <outputDirectory>bin</outputDirectory>
         </file>
 
-        <file>
-            <source>src/main/scripts/machinecode.sh</source>
-            <outputDirectory>bin</outputDirectory>
-        </file>
-
         <file>
             <source>src/main/resources/log4j.properties</source>
             <outputDirectory>config/</outputDirectory>
@@ -76,10 +71,6 @@
             <outputDirectory>config/</outputDirectory>
         </file>
 
-        <file>
-            <source>src/main/resources/register.py</source>
-            <outputDirectory>tools/</outputDirectory>
-        </file>
 
         <file>
             <source>../broker/h2/create_table.sql</source>
diff --git a/pom.xml b/pom.xml
index 2620bd33..ac1bd7c1 100755
--- a/pom.xml
+++ b/pom.xml
@@ -12,7 +12,7 @@
     <artifactId>wildfirechat-parent</artifactId>
 
     <packaging>pom</packaging>
-    <version>0.11</version>
+    <version>0.12</version>
     <name>Wildfire Chat</name>
     <description>Wildfire Chat Server</description>
     <inceptionYear>2018</inceptionYear>
diff --git a/wildfire_jmeter/pom.xml b/wildfire_jmeter/pom.xml
index 6d156e08..17736195 100755
--- a/wildfire_jmeter/pom.xml
+++ b/wildfire_jmeter/pom.xml
@@ -5,7 +5,7 @@
     <relativePath>../</relativePath>
     <artifactId>wildfirechat-parent</artifactId>
     <groupId>cn.wildfirechat</groupId>
-    <version>0.11</version>
+    <version>0.12</version>
   </parent>
 
   <groupId>net.xmeter</groupId>