Mention avl-tree.el.

diff --git a/etc/NEWS b/etc/NEWS
index 9b849514b0cd2b343fb7ab405975d8e6d860ba95..90795669274b83a4f879d91262a02589d7cc301f 100644 (file)
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -247,6 +247,8 @@ forms to subroutines.
 \f
 * New Packages for Lisp Programming in Emacs 23.1
 
+** The new package avl-tree.el deals with the AVL tree data structure.
+
 \f
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 This file is part of GNU Emacs.