diff --git a/solr/CHANGES.txt b/solr/CHANGES.txt
index 5d2b594f331..a2f36c446d0 100644
--- a/solr/CHANGES.txt
+++ b/solr/CHANGES.txt
@@ -170,6 +170,10 @@ Bug Fixes
 
 * SOLR-9191: OverseerTaskQueue.peekTopN() fatally flawed (Scott Blum, Noble Paul)
 
+* SOLR-8812: edismax: turn off mm processing if no explicit mm spec is provided
+  and there are explicit operators (except for AND) - addresses problems caused by SOLR-2649.
+  (Greg Pendlebury, Jan Høydahl, Erick Erickson, Steve Rowe)
+
 Optimizations
 ----------------------
 * SOLR-8722: Don't force a full ZkStateReader refresh on every Overseer operation.