Index: UPGRADE.txt
===================================================================
RCS file: /cvs/drupal/drupal/UPGRADE.txt,v
retrieving revision 1.24
diff -u -p -r1.24 UPGRADE.txt
--- UPGRADE.txt	11 Aug 2010 01:06:44 -0000	1.24
+++ UPGRADE.txt	2 Oct 2010 01:54:15 -0000
@@ -11,6 +11,8 @@ Prior to upgrading, you should ensure th
  * Custom and contributed modules have been checked for compatibility (#11).
  * Custom and contributed themes have been checked for compatibility (#11).
  * You have read through this entire document.
+ * If you are upgrading from one major release to another (ie 6.x to 7.x)
+   you must first upgrade to the latest version of your current release.
 
 Let's begin!