diff --git a/Changes b/Changes
index 230c26b..5e02259 100644
--- a/Changes
+++ b/Changes
@@ -7,6 +7,7 @@ o Spray splits a file to multiple outputs by alternating pages
 o List document and page info in JSON format
 o List page labels in JSON format
 o List fonts in JSON format
+o Identify PDF/A, PDF/X, PDF/E, PDF/VT, PDF/UA
 
 Extended features: