diff --git a/releng/org.eclipse.cdt.releng/build.xml b/releng/org.eclipse.cdt.releng/build.xml
index 10e2831ba6d..f9001823512 100644
--- a/releng/org.eclipse.cdt.releng/build.xml
+++ b/releng/org.eclipse.cdt.releng/build.xml
@@ -11,7 +11,7 @@
 	<target name="init">
 		<touch file="${user.home}/.cvspass" />
 		<tstamp/>
-		<property name="branchVersion" value="3.1.0"/>
+		<property name="branchVersion" value="4.0.0"/>
 		<property name="timestamp" value="${DSTAMP}${TSTAMP}" />
 		<property name="forceContextQualifier" value="${timestamp}"/>
 		<property name="buildDirectory" value="${basedir}/results" />
diff --git a/releng/org.eclipse.cdt.releng/platform/build.properties b/releng/org.eclipse.cdt.releng/platform/build.properties
index 905a523e0ae..d624516575c 100644
--- a/releng/org.eclipse.cdt.releng/platform/build.properties
+++ b/releng/org.eclipse.cdt.releng/platform/build.properties
@@ -104,7 +104,7 @@ javacVerbose=true
 javacFailOnError=false
 
 # The version of the source code
-#javaSource=1.3
+javacSource=1.4
 
 # The version of the byte code targeted
-#javacTarget=1.1
+javacTarget=1.4
diff --git a/releng/org.eclipse.cdt.releng/sdk/build.properties b/releng/org.eclipse.cdt.releng/sdk/build.properties
index 544c995a769..49c04dfe1d4 100644
--- a/releng/org.eclipse.cdt.releng/sdk/build.properties
+++ b/releng/org.eclipse.cdt.releng/sdk/build.properties
@@ -106,7 +106,7 @@ javacDebugInfo=true
 javacfailonerror=true
 
 # The version of the source code
-#javaSource=1.3
+javacSource=1.4
 
 # The version of the byte code targeted
-#javacTarget=1.1
+javacTarget=1.4