diff --git a/pdex/pdeX.txt b/pdex/pdeX.txt
index 2cc551f78..7c2a3aa85 100644
--- a/pdex/pdeX.txt
+++ b/pdex/pdeX.txt
@@ -3,5 +3,5 @@ authorList=[The Processing Foundation](http://processing.org)
 url=https://github.com/processing/processing-experimental
 sentence=The next generation of PDE
 paragraph=Intelligent Code Completion, Live Error Checker, Debugger, Auto Refactor, etc.
-version=6
-prettyVersion=1.0.3b
+version=7
+prettyVersion=1.0.4b
diff --git a/pdex/revisions.txt b/pdex/revisions.txt
index 5a2a1fd3b..647859ae0 100644
--- a/pdex/revisions.txt
+++ b/pdex/revisions.txt
@@ -1,11 +1,33 @@
 
-PDE X v1.0.4b - February , 2014
+PDE X v1.0.4b - May 9, 2014
+
+Requires Processing 2.1.2 or above.
 
 Bug fixes
 
++ Disabled auto-save. My sincere apologies to those who lost data due
+to this bug. It was wrong of me to release an untested feature without
+adding an option to enable/disable it. I've learnt a lesson and I shall
+ensure this sort of thing doesn't happen again in the future.
+
 + Autocompletion bug, column is sometimes off by 1
 https://github.com/processing/processing-experimental/issues/38
 
++ Persistent completion dialog on OS X
+https://github.com/processing/processing-experimental/issues/32
+
++ Status bar update bug
+https://github.com/processing/processing-experimental/issues/29
+
++ Export application broken
+https://github.com/processing/processing-experimental/issues/45
+
++ Status Bar - New Tab prompt bug
+https://github.com/processing/processing-experimental/issues/53
+
++ Show usage fails for methods which have javadoc comment
+https://github.com/processing/processing-experimental/issues/51
+
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
 PDE X v1.0.3b - January 21, 2014
diff --git a/pdex/src/processing/mode/experimental/ASTNodeWrapper.java b/pdex/src/processing/mode/experimental/ASTNodeWrapper.java
index 3acb311ba..2823cc9e7 100644
--- a/pdex/src/processing/mode/experimental/ASTNodeWrapper.java
+++ b/pdex/src/processing/mode/experimental/ASTNodeWrapper.java
@@ -459,7 +459,7 @@ public class ASTNodeWrapper {
     sourceAlt = colorMatcher.replaceAll("int");
     
     log("From direct source: ");
-    sourceAlt = sourceJava;
+//    sourceAlt = sourceJava;
     log(sourceAlt);
     
 
@@ -582,7 +582,7 @@ public class ASTNodeWrapper {
       int lsto = lineElement.getStartOffset();
       while(matcher.find()){
         count++;
-        System.out.println(matcher.start() + lsto);
+        //log(matcher.start() + lsto);
         if(lsto + matcher.start() == nodeName.getStartPosition())
           break;
       }
diff --git a/pdex/src/processing/mode/experimental/ErrorCheckerService.java b/pdex/src/processing/mode/experimental/ErrorCheckerService.java
index b81838cc7..92948c09a 100644
--- a/pdex/src/processing/mode/experimental/ErrorCheckerService.java
+++ b/pdex/src/processing/mode/experimental/ErrorCheckerService.java
@@ -213,6 +213,7 @@ public class ErrorCheckerService implements Runnable{
   protected ErrorMessageSimplifier errorMsgSimplifier;
   
   public ErrorCheckerService(DebugEditor debugEditor) {
+    ensureMinP5Version();
     this.editor = debugEditor;
     stopThread = new AtomicBoolean(false);
     pauseThread = new AtomicBoolean(false);
@@ -283,6 +284,14 @@ public class ErrorCheckerService implements Runnable{
       }
     });
   }
+  
+  public void ensureMinP5Version(){
+    // Processing 2.1.2 - Revision 0225
+    if(Base.getRevision() < 225){
+//      System.err.println("ERROR: PDE X requires Processing 2.1.2 or higher.");
+      Base.showWarning("Error", "ERROR: PDE X requires Processing 2.1.2 or higher.", null);
+    }
+  }
 
   public void run() {
     stopThread.set(false);