sort now also accepts an attribute
diff --git a/CHANGES b/CHANGES
index a410c9e..7cda7b2 100644
--- a/CHANGES
+++ b/CHANGES
@@ -28,6 +28,7 @@
   incompatible change.  The argument to the filter previously was the
   optional starting index which defaultes to zero.  This now became the
   second argument to the function because it's rarely used.
+- like sum, sort now also makes it possible to order items by attribute.
 
 Version 2.5.5
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