--- jsr166/src/main/java/util/NavigableSet.java	2005/05/02 18:38:53	1.6
+++ jsr166/src/main/java/util/NavigableSet.java	2005/05/02 22:34:56	1.7
@@ -36,6 +36,7 @@ package java.util;
  *
  * @author Doug Lea
  * @param <E> the type of elements maintained by this set
+ * @since 1.6
  */
 public interface NavigableSet<E> extends SortedSet<E> {
     /**