diff --git a/solr/CHANGES.txt b/solr/CHANGES.txt
index 1ee0146c30f..2b5e799fbef 100644
--- a/solr/CHANGES.txt
+++ b/solr/CHANGES.txt
@@ -819,6 +819,13 @@ Other Changes
   to fix problematic UTF-8 handling for supplementary characters.
   (uschindler, yonik, rmuir)
 
+* SOLR-2391: The preferred Content-Type for XML was changed to
+  application/xml. XMLResponseWriter now only delivers using this
+  type; updating documents and analyzing documents is still supported
+  using text/xml as Content-Type, too. If you have clients that are
+  hardcoded on text/xml as Content-Type, you have to change them.
+  (uschindler, rmuir)
+
 
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