diff --git a/WHATSNEW b/WHATSNEW
index d463bdcde..de4a5fa43 100644
--- a/WHATSNEW
+++ b/WHATSNEW
@@ -180,6 +180,8 @@ Other changes:
   works for the code generated by the Sun java compiler. It may not work for
   all compilers.
 
+* <tar>'s up-to-date check didn't work for nested <(tar)fileset>s.
+
 Changes from Ant 1.5.1Beta1 to 1.5.1
 ====================================