--- jsr166/src/main/java/util/NavigableMap.java	2005/05/02 18:38:53	1.5
+++ jsr166/src/main/java/util/NavigableMap.java	2005/05/02 22:34:56	1.6
@@ -46,6 +46,7 @@ package java.util;
  * @author Doug Lea
  * @param <K> the type of keys maintained by this map
  * @param <V> the type of mapped values
+ * @since 1.6
  */
 public interface NavigableMap<K,V> extends SortedMap<K,V> {
     /**