diff --git a/doc/release-notes/teachpack/HISTORY.txt b/doc/release-notes/teachpack/HISTORY.txt
index 8c5523402d..624c4c6440 100644
--- a/doc/release-notes/teachpack/HISTORY.txt
+++ b/doc/release-notes/teachpack/HISTORY.txt
@@ -1,3 +1,10 @@
+------------------------------------------------------------------------
+Version 4.2				  [Thu May 21 08:51:15 EDT 2009]
+
+* the universe API has changed. It no longer uses chars or symbols
+  for the callbacks but one-letter strings, except for arrow keys 
+  and special events, which are arbitrarily long strings. 
+
 ------------------------------------------------------------------------
 Version 4.1.5   			  [Sat Feb 14 20:12:23 EST 2009]