diff --git a/ChangeLog b/ChangeLog
index cb7547a030..2b7ef311b6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2017-08-16  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* NEWS: Mention x86-64 FMA optimization.
+
 2017-08-16  H.J. Lu  <hongjiu.lu@intel.com>
 
 	[BZ #21912]
diff --git a/NEWS b/NEWS
index 0008df16c0..0475e225ca 100644
--- a/NEWS
+++ b/NEWS
@@ -11,6 +11,9 @@ Major new features:
 
   [Add new features here]
 
+* Optimized x86-64 asin, atan2, exp, expf, log, pow, atan, sin and tan
+  with FMA, contributed by Arjan van de Ven and H.J. Lu from Intel.
+
 Deprecated and removed features, and other changes affecting compatibility:
 
 * On GNU/Linux, the obsolete Linux constant PTRACE_SEIZE_DEVEL is no longer