diff --git a/.gitignore b/.gitignore
index 1120a82..5dfb723 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
 # Project exclude paths
-/*/target/
\ No newline at end of file
+/target/
+/**/target/
+/**/*.versionsBackup
\ No newline at end of file
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index d3833cb..d82ad0b 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -8,6 +8,7 @@
         <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
         <outputRelativeToContentRoot value="true" />
         <module name="commons-jmelange" />
+        <module name="dao-jmelange" />
         <module name="scripted-jmelange" />
         <module name="utils-jmelange" />
       </profile>
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
index 2d0e5da..1eeb176 100644
--- a/.idea/encodings.xml
+++ b/.idea/encodings.xml
@@ -3,6 +3,8 @@
   <component name="Encoding">
     <file url="file://$PROJECT_DIR$/commons-jmelange/src/main/java" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/commons-jmelange/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/dao-jmelange/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/dao-jmelange/src/main/resources" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/scripted-jmelange/src/main/java" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/scripted-jmelange/src/main/resources" charset="UTF-8" />
     <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
diff --git a/.idea/modules.xml b/.idea/modules.xml
deleted file mode 100644
index e2f443e..0000000
--- a/.idea/modules.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/dao-jmelange/dao-jmelange.iml" filepath="$PROJECT_DIR$/dao-jmelange/dao-jmelange.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..b1f5ba4
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+bDATE=$(date '+%Y%m%d%H%M%S')
+bDIR=$(dirname $0)
+bDIR=$(cd $bDIR && pwd)
+
+#OPTS="-DskipTests=true -DproxySet=true -DproxyHost=127.0.0.1 -DproxyPort=3128 -Dhttps.nonProxyHosts=127.0.0.1"
+OPTS="-DskipTests=true"
+
+while test ! -z "$1" ; do
+  case "$1" in
+    -major*)
+      (cd $bDIR && mvn build-helper:parse-version versions:set \
+                -DnewVersion="\${parsedVersion.nextMajorVersion}.1.\${parsedVersion.nextIncrementalVersion}" ) || exit 1
+      ;;
+    -minor*)
+      (cd $bDIR && mvn build-helper:parse-version versions:set \
+                -DnewVersion="\${parsedVersion.majorVersion}.\${parsedVersion.nextMinorVersion}.\${parsedVersion.nextIncrementalVersion}" ) || exit 1
+      ;;
+    -release*)
+      (cd $bDIR && mvn -X build-helper:parse-version versions:set \
+                -DnewVersion="\${parsedVersion.majorVersion}.\${parsedVersion.minorVersion}.\${parsedVersion.nextIncrementalVersion}" ) || exit 1
+      ;;
+    -clean*)
+      (cd $bDIR && mvn clean $OPTS -U) || exit 1
+      ;;
+    -pack*)
+      (cd $bDIR && mvn clean package $OPTS -U) || exit 1
+      ;;
+    -fix*)
+      (cd $bDIR && mvn -N versions:update-child-modules) || exit 1
+      ;;
+    -install*)
+      (cd $bDIR && mvn install $OPTS) || exit 1
+      ;;
+    *) echo "unknow option ..."
+      ;;
+  esac
+  shift
+done
\ No newline at end of file
diff --git a/commons-jmelange/pom.xml b/commons-jmelange/pom.xml
index c26e151..55129c5 100644
--- a/commons-jmelange/pom.xml
+++ b/commons-jmelange/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.github.terefang.jmelange</groupId>
         <artifactId>jmelange</artifactId>
-        <version>2021.1.0</version>
+        <version>2021.1.1</version>
     </parent>
     <artifactId>commons-jmelange</artifactId>
 
diff --git a/dao-jmelange/dao-jmelange.iml b/dao-jmelange/dao-jmelange.iml
index d6ebd48..78b2cc5 100644
--- a/dao-jmelange/dao-jmelange.iml
+++ b/dao-jmelange/dao-jmelange.iml
@@ -1,9 +1,2 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="inheritedJdk" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>
\ No newline at end of file
+<module type="JAVA_MODULE" version="4" />
\ No newline at end of file
diff --git a/dao-jmelange/pom.xml b/dao-jmelange/pom.xml
index 70d9cd7..21a60f6 100644
--- a/dao-jmelange/pom.xml
+++ b/dao-jmelange/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.github.terefang.jmelange</groupId>
         <artifactId>jmelange</artifactId>
-        <version>2021.1.0</version>
+        <version>2021.1.1</version>
     </parent>
     <artifactId>dao-jmelange</artifactId>
 
diff --git a/pom.xml b/pom.xml
index 254fc82..6a4a1fc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,13 +6,14 @@
 
     <groupId>com.github.terefang.jmelange</groupId>
     <artifactId>jmelange</artifactId>
-    <version>2021.1.0</version>
+    <version>2021.1.1</version>
 
     <packaging>pom</packaging>
     <modules>
         <module>commons-jmelange</module>
         <module>utils-jmelange</module>
         <module>scripted-jmelange</module>
+        <module>dao-jmelange</module>
     </modules>
 
     <properties>
diff --git a/scripted-jmelange/pom.xml b/scripted-jmelange/pom.xml
index e322df4..51c9d13 100644
--- a/scripted-jmelange/pom.xml
+++ b/scripted-jmelange/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.github.terefang.jmelange</groupId>
         <artifactId>jmelange</artifactId>
-        <version>2021.1.0</version>
+        <version>2021.1.1</version>
     </parent>
     <artifactId>scripted-jmelange</artifactId>
 
@@ -14,12 +14,12 @@
         <dependency>
             <groupId>com.github.terefang.jmelange</groupId>
             <artifactId>commons-jmelange</artifactId>
-            <version>2021.1.0</version>
+            <version>2021.1.1</version>
         </dependency>
         <dependency>
             <groupId>com.github.terefang.jmelange</groupId>
             <artifactId>utils-jmelange</artifactId>
-            <version>2021.1.0</version>
+            <version>2021.1.1</version>
         </dependency>
     </dependencies>
 
diff --git a/utils-jmelange/pom.xml b/utils-jmelange/pom.xml
index 94ed8e0..d4cc119 100644
--- a/utils-jmelange/pom.xml
+++ b/utils-jmelange/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>com.github.terefang.jmelange</groupId>
         <artifactId>jmelange</artifactId>
-        <version>2021.1.0</version>
+        <version>2021.1.1</version>
     </parent>
     <artifactId>utils-jmelange</artifactId>