diff --git a/include/api_version.h b/include/api_version.h
index b0a20f9..a80d757 100644
--- a/include/api_version.h
+++ b/include/api_version.h
@@ -63,13 +63,13 @@
 #define API_MINOR_VERSION       9
 
 /** patch level */
-#define API_PATCH_VERSION       5
+#define API_PATCH_VERSION       6
 
 /** 
  *  This symbol is defined for internal, "development" copies of API. This
  *  symbol will be #undef'd for releases. 
  */
-/* #define API_IS_DEV_VERSION */
+#define API_IS_DEV_VERSION
 
 
 /** The formatted string of API's version */