diff --git a/app/src/processing/app/Base.java b/app/src/processing/app/Base.java
index f6f418117..e5f593997 100644
--- a/app/src/processing/app/Base.java
+++ b/app/src/processing/app/Base.java
@@ -58,11 +58,6 @@ import static processing.app.I18n._;
  * files and images, etc) that comes from that.
  */
 public class Base {
-  public static final int REVISION = BaseNoGui.REVISION;
-  /** This might be replaced by main() if there's a lib/version.txt file. */
-  static String VERSION_NAME = BaseNoGui.VERSION_NAME;
-  /** Set true if this a proper release rather than a numbered revision. */
-  static public boolean RELEASE = BaseNoGui.RELEASE;
 
   static private boolean commandLine;
 
@@ -104,8 +99,6 @@ public class Base {
     BaseNoGui.initParameters(args);
     
     BaseNoGui.initVersion();
-    VERSION_NAME = BaseNoGui.VERSION_NAME;
-    RELEASE = BaseNoGui.RELEASE;
 
 //    if (System.getProperty("mrj.version") != null) {
 //      //String jv = System.getProperty("java.version");
@@ -1509,7 +1502,7 @@ public class Base {
 
           g.setFont(new Font("SansSerif", Font.PLAIN, 11));
           g.setColor(Color.white);
-          g.drawString(VERSION_NAME, 50, 30);
+          g.drawString(BaseNoGui.VERSION_NAME, 50, 30);
         }
       };
     window.addMouseListener(new MouseAdapter() {
diff --git a/app/src/processing/app/Editor.java b/app/src/processing/app/Editor.java
index 9eb2f7263..83a4a8a11 100644
--- a/app/src/processing/app/Editor.java
+++ b/app/src/processing/app/Editor.java
@@ -2208,13 +2208,8 @@ public class Editor extends JFrame implements RunnerListener {
     }
     header.rebuild();
     // Set the title of the window to "sketch_070752a - Processing 0126"
-    setTitle(
-      I18n.format(
-	_("{0} | Arduino {1}"),
-	sketch.getName(),
-	Base.VERSION_NAME
-      )
-    );
+    setTitle(I18n.format(_("{0} | Arduino {1}"), sketch.getName(),
+                         BaseNoGui.VERSION_NAME));
     // Disable untitled setting from previous document, if any
     untitled = false;
 
diff --git a/app/src/processing/app/EditorStatus.java b/app/src/processing/app/EditorStatus.java
index 7cb4b1ee1..1d90760f1 100644
--- a/app/src/processing/app/EditorStatus.java
+++ b/app/src/processing/app/EditorStatus.java
@@ -464,7 +464,7 @@ public class EditorStatus extends JPanel /*implements ActionListener*/ {
       copyErrorButton.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
           String message = "";
-          message += _("Arduino: ") + Base.VERSION_NAME + " (" + System.getProperty("os.name") + "), ";
+          message += _("Arduino: ") + BaseNoGui.VERSION_NAME + " (" + System.getProperty("os.name") + "), ";
           message += _("Board: ") + "\"" + Base.getBoardPreferences().get("name") + "\"\n\n";
           message += editor.console.consoleTextPane.getText().trim();
           if ((Preferences.getBoolean("build.verbose")) == false) {
diff --git a/app/src/processing/app/UpdateCheck.java b/app/src/processing/app/UpdateCheck.java
index 0e94366e9..5e063bc6c 100644
--- a/app/src/processing/app/UpdateCheck.java
+++ b/app/src/processing/app/UpdateCheck.java
@@ -79,7 +79,7 @@ public class UpdateCheck implements Runnable {
     try {
       String info;
       info = URLEncoder.encode(id + "\t" +
-                        PApplet.nf(Base.REVISION, 4) + "\t" +
+                        PApplet.nf(BaseNoGui.REVISION, 4) + "\t" +
                         System.getProperty("java.version") + "\t" +
                         System.getProperty("java.vendor") + "\t" +
                         System.getProperty("os.name") + "\t" +
@@ -104,7 +104,7 @@ public class UpdateCheck implements Runnable {
           "would you like to visit the Arduino download page?");
         
       if (base.activeEditor != null) {
-        if (latest > Base.REVISION) {
+        if (latest > BaseNoGui.REVISION) {
           Object[] options = { _("Yes"), _("No") };
           int result = JOptionPane.showOptionDialog(base.activeEditor,
                                                     prompt,
diff --git a/arduino-core/src/processing/app/BaseNoGui.java b/arduino-core/src/processing/app/BaseNoGui.java
index 825af095c..f4dd910d9 100644
--- a/arduino-core/src/processing/app/BaseNoGui.java
+++ b/arduino-core/src/processing/app/BaseNoGui.java
@@ -41,11 +41,10 @@ import processing.app.packages.LibraryList;
 
 public class BaseNoGui {
 
+  /** Version string to be used for build */
   public static final int REVISION = 158;
-  /** This might be replaced by main() if there's a lib/version.txt file. */
-  static String VERSION_NAME = "0158";
-  /** Set true if this a proper release rather than a numbered revision. */
-  static public boolean RELEASE = false;
+  /** Extended version string displayed on GUI */
+  static String VERSION_NAME = "1.5.8";
 
   static File buildFolder;
 
@@ -608,19 +607,6 @@ public class BaseNoGui {
   }
 
   static public void initVersion() {
-    try {
-      File versionFile = getContentFile("lib/version.txt");
-      if (versionFile.exists()) {
-        String version = PApplet.loadStrings(versionFile)[0];
-        if (!version.equals(VERSION_NAME) && !version.equals("${version}")) {
-          VERSION_NAME = version;
-          RELEASE = true;
-        }
-      }
-    } catch (Exception e) {
-      e.printStackTrace();
-    }
-
     // help 3rd party installers find the correct hardware path
     PreferencesData.set("last.ide." + VERSION_NAME + ".hardwarepath", getHardwarePath());
     PreferencesData.set("last.ide." + VERSION_NAME + ".daterun", "" + (new Date()).getTime() / 1000);
diff --git a/build/build.xml b/build/build.xml
index 229640ebe..85183989c 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -169,11 +169,11 @@
         <tokenfilter>
           <linetokenizer />
           <containsregex pattern="String VERSION_NAME = "/>
-          <replaceregex pattern="[^0-9]*" flags="g" replace=""/>
+          <replaceregex pattern=".*&quot;(.*)&quot;.*" flags="g" replace="\1"/>
         </tokenfilter>
       </filterchain>
     </loadfile>
-    <echo message="Revision in BaseNoGui.java is: ${revision.base}" />
+    <echo message="                     Revision in BaseNoGui.java is: ${revision.base}" />
   </target>
 
   <!-- - - - - - - - -->