diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index ec1d2f9..4f9379b 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -22,6 +22,8 @@ Drupal 7.19, xxxx-xx-xx (development version)
 - Made the default .htaccess rules protocol sensitive to improve security for
   sites which use HTTPS and redirect between "www" and non-"www" versions of
   the page.
+- Added empty "datatype" attribute to taxonomy term and username links to make
+  the RDFa markup upward compatible with RDFa 1.1.
 
 Drupal 7.18, 2012-12-19
 -----------------------