require CDATA
diff --git a/src/site/apt/history.apt b/src/site/apt/history.apt
index 42b9b6a..6c90ed0 100644
--- a/src/site/apt/history.apt
+++ b/src/site/apt/history.apt
@@ -78,7 +78,7 @@
*-----------------*--------------------*--------*------------------*--------------------*---------------*
| 2016-04-15 | 3.5.1 | 1.7 | 1.7.1 | 1.2
*-----------------*--------------------*--------*------------------*--------------------*---------------*
-| 2016-02-19 | 3.5 | 1.7 | 1.7 | 1.2
+| 2016-02-19 | 3.5 | 1.7 | 1.7 | 1.2 | <<<site.xml>>>'s <<<head>>> and <<<footer>>> changed from DOM to String, requiring CDATA
*-----------------*--------------------*--------*------------------*--------------------*---------------*
| 2014-07-07 | 3.4 | 1.6 | 1.6 | 1.2 | Reports inherit configuration from pluginManagement
*-----------------*--------------------*--------*------------------*--------------------*---------------*
