diff --git a/doc/CHANGES.txt b/doc/CHANGES.txt
index 38a61aaac5..4968c1bf75 100644
--- a/doc/CHANGES.txt
+++ b/doc/CHANGES.txt
@@ -35,6 +35,9 @@ Changelog
 - cleaned up bestiary window layout
 - performance optimization: sound events too far away to be heard are not loaded
 
+*alpha features*
+- built-in support added for capturing video of web client viewport
+
 
 1.47