diff --git a/solr/CHANGES.txt b/solr/CHANGES.txt
index 3b9092f190f..a21a94946fc 100644
--- a/solr/CHANGES.txt
+++ b/solr/CHANGES.txt
@@ -166,6 +166,8 @@ New Features
 
 * SOLR-12811: Add enclosingDisk and associated geometric Stream Evaluators. (Joel Bernstein)
 
+* SOLR-12840: Add pairSort Stream Evaluator (Joel Bernstein)
+
 Other Changes
 ----------------------