diff --git a/build.xml b/build.xml
deleted file mode 100644
index 8c50690..0000000
--- a/build.xml
+++ /dev/null
@@ -1,61 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<project name="gitbucket" default="all" basedir=".">
-
-  <property name="target.dir" value="target"/>
-  <property name="embed.classes.dir" value="${target.dir}/embed-classes"/>
-  <property name="jetty.dir" value="embed-jetty"/>
-  <property name="scala.version" value="2.11"/>
-  <property name="gitbucket.version" value="3.3.0"/>
-  <property name="jetty.version" value="8.1.16.v20140903"/>
-  <property name="servlet.version" value="3.0.0.v201112011016"/>
-
-  <condition property="sbt.exec" value="sbt.bat" else="sbt.sh">
-    <os family="windows" />
-  </condition>
-
-  <target name="clean">
-    <delete dir="${embed.classes.dir}"/>
-    <delete file="${target.dir}/scala-${scala.version}/gitbucket.war"/>
-  </target>
-
-  <target name="war" depends="clean">
-    <exec executable="${sbt.exec}" resolveexecutable="true" failonerror="true">
-      <arg line="clean compile test package" />
-    </exec>
-  </target>
-
-  <target name="embed" depends="war">
-    <mkdir dir="${embed.classes.dir}"/>
-
-    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/javax.servlet-${servlet.version}.jar" />
-    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-continuation-${jetty.version}.jar" />
-    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-http-${jetty.version}.jar" />
-    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-io-${jetty.version}.jar" />
-    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-security-${jetty.version}.jar" />
-    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-server-${jetty.version}.jar" />
-    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-servlet-${jetty.version}.jar" />
-    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-util-${jetty.version}.jar" />
-    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-webapp-${jetty.version}.jar" />
-    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-xml-${jetty.version}.jar" />
-
-    <zip destfile="${target.dir}/scala-${scala.version}/gitbucket_${scala.version}-${gitbucket.version}.war"
-         basedir="${embed.classes.dir}"
-         update = "true"
-         includes="javax/**,org/**"/>
-
-    <zip destfile="${target.dir}/scala-${scala.version}/gitbucket_${scala.version}-${gitbucket.version}.war"
-         basedir="${target.dir}/scala-${scala.version}/classes"
-         update = "true"
-         includes="JettyLauncher.class,HttpsSupportConnector.class"/>
-  </target>
-
-  <target name="rename" depends="embed">
-    <move file="${target.dir}/scala-${scala.version}/gitbucket_${scala.version}-${gitbucket.version}.war"
-            tofile="${target.dir}/scala-${scala.version}/gitbucket.war"/>
-  </target>
-
-  <target name="all" depends="rename">
-  </target>
-
-
-</project>
diff --git a/deploy-assembly/deploy-assembly-jar.sh b/deploy-assembly/deploy-assembly-jar.sh
deleted file mode 100755
index 272fcc6..0000000
--- a/deploy-assembly/deploy-assembly-jar.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/sh
-mvn deploy:deploy-file \
-  -DgroupId=gitbucket\
-  -DartifactId=gitbucket-assembly\
-  -Dversion=3.3.0\
-  -Dpackaging=jar\
-  -Dfile=../target/scala-2.11/gitbucket-assembly-3.3.0.jar\
-  -DrepositoryId=sourceforge.jp\
-  -Durl=scp://shell.sourceforge.jp/home/groups/a/am/amateras/htdocs/mvn/
diff --git a/deploy-assembly/pom.xml b/deploy-assembly/pom.xml
deleted file mode 100644
index 40693f2..0000000
--- a/deploy-assembly/pom.xml
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-    <modelVersion>4.0.0</modelVersion>
-    <groupId>jp.sf.amateras</groupId>
-    <artifactId>gitbucket-assembly</artifactId>
-    <version>0.0.1</version>
-    <build>
-        <extensions>
-            <extension>
-                <groupId>org.apache.maven.wagon</groupId>
-                <artifactId>wagon-ssh</artifactId>
-                <version>1.0-beta-6</version>
-            </extension>
-        </extensions>
-    </build>
-</project>
\ No newline at end of file
diff --git a/env.sh b/env.sh
new file mode 100644
index 0000000..ee2c1fa
--- /dev/null
+++ b/env.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+export GITBUCKET_VERSION=3.3.0
diff --git a/project/build.scala b/project/build.scala
index 6279736..7047d25 100644
--- a/project/build.scala
+++ b/project/build.scala
@@ -10,7 +10,7 @@
 object MyBuild extends Build {
   val Organization = "gitbucket"
   val Name = "gitbucket"
-  val Version = "3.3.0"
+  val Version = System.getenv("GITBUCKET_VERSION")
   val ScalaVersion = "2.11.6"
   val ScalatraVersion = "2.3.1"
 
diff --git a/release/build.xml b/release/build.xml
new file mode 100644
index 0000000..2e6b8da
--- /dev/null
+++ b/release/build.xml
@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<project name="gitbucket" default="all" basedir="..">
+
+  <property environment="env"/>
+  <property name="target.dir" value="target"/>
+  <property name="embed.classes.dir" value="${target.dir}/embed-classes"/>
+  <property name="jetty.dir" value="embed-jetty"/>
+  <property name="scala.version" value="2.11"/>
+  <property name="gitbucket.version" value="${env.GITBUCKET_VERSION}"/>
+  <property name="jetty.version" value="8.1.16.v20140903"/>
+  <property name="servlet.version" value="3.0.0.v201112011016"/>
+
+  <condition property="sbt.exec" value="sbt.bat" else="sbt.sh">
+    <os family="windows" />
+  </condition>
+
+  <target name="clean">
+    <delete dir="${embed.classes.dir}"/>
+    <delete file="${target.dir}/scala-${scala.version}/gitbucket.war"/>
+  </target>
+
+  <target name="war" depends="clean">
+    <exec executable="${sbt.exec}" resolveexecutable="true" failonerror="true">
+      <arg line="clean compile test package" />
+    </exec>
+  </target>
+
+  <target name="embed" depends="war">
+    <mkdir dir="${embed.classes.dir}"/>
+
+    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/javax.servlet-${servlet.version}.jar" />
+    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-continuation-${jetty.version}.jar" />
+    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-http-${jetty.version}.jar" />
+    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-io-${jetty.version}.jar" />
+    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-security-${jetty.version}.jar" />
+    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-server-${jetty.version}.jar" />
+    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-servlet-${jetty.version}.jar" />
+    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-util-${jetty.version}.jar" />
+    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-webapp-${jetty.version}.jar" />
+    <unzip dest="${embed.classes.dir}" src="${jetty.dir}/jetty-xml-${jetty.version}.jar" />
+
+    <zip destfile="${target.dir}/scala-${scala.version}/gitbucket_${scala.version}-${gitbucket.version}.war"
+         basedir="${embed.classes.dir}"
+         update = "true"
+         includes="javax/**,org/**"/>
+
+    <zip destfile="${target.dir}/scala-${scala.version}/gitbucket_${scala.version}-${gitbucket.version}.war"
+         basedir="${target.dir}/scala-${scala.version}/classes"
+         update = "true"
+         includes="JettyLauncher.class,HttpsSupportConnector.class"/>
+  </target>
+
+  <target name="rename" depends="embed">
+    <move file="${target.dir}/scala-${scala.version}/gitbucket_${scala.version}-${gitbucket.version}.war"
+            tofile="${target.dir}/scala-${scala.version}/gitbucket.war"/>
+  </target>
+
+  <target name="all" depends="rename">
+  </target>
+
+
+</project>
diff --git a/release/deploy-assembly-jar.sh b/release/deploy-assembly-jar.sh
new file mode 100755
index 0000000..4f372d4
--- /dev/null
+++ b/release/deploy-assembly-jar.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+source ../env.sh
+
+mvn deploy:deploy-file \
+  -DgroupId=gitbucket\
+  -DartifactId=gitbucket-assembly\
+  -Dversion=$GITBUCKET_VERSION\
+  -Dpackaging=jar\
+  -Dfile=../target/scala-2.11/gitbucket-assembly-$GITBUCKET_VERSION.jar\
+  -DrepositoryId=sourceforge.jp\
+  -Durl=scp://shell.sourceforge.jp/home/groups/a/am/amateras/htdocs/mvn/
diff --git a/release/make-release-war.sh b/release/make-release-war.sh
new file mode 100755
index 0000000..6245718
--- /dev/null
+++ b/release/make-release-war.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+source ../env.sh
+ant -f build.xml all
diff --git a/sbt.sh b/sbt.sh
index eae1ce3..6119129 100755
--- a/sbt.sh
+++ b/sbt.sh
@@ -1,2 +1,3 @@
 #!/bin/sh
+source ./env.sh
 java -Dsbt.log.noformat=true -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256m -Xmx512M -Xss2M -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 -jar `dirname $0`/sbt-launch-0.13.8.jar "$@"