diff --git a/arduino-core/src/processing/app/BaseNoGui.java b/arduino-core/src/processing/app/BaseNoGui.java
index 640f2d757..85d951dd4 100644
--- a/arduino-core/src/processing/app/BaseNoGui.java
+++ b/arduino-core/src/processing/app/BaseNoGui.java
@@ -31,9 +31,9 @@ import static processing.app.I18n._;
 public class BaseNoGui {
 
   /** Version string to be used for build */
-  public static final int REVISION = 10605;
+  public static final int REVISION = 10606;
   /** Extended version string displayed on GUI */
-  public static final String VERSION_NAME = "1.6.5";
+  public static final String VERSION_NAME = "1.6.6";
   public static final String VERSION_NAME_LONG;
 
   static {
diff --git a/build/shared/revisions.txt b/build/shared/revisions.txt
index 9d9ea7446..eebf3dba9 100644
--- a/build/shared/revisions.txt
+++ b/build/shared/revisions.txt
@@ -1,3 +1,5 @@
+ARDUINO 1.6.6
+
 ARDUINO 1.6.5 - 2015.06.15
 
 [ide]