Fix #1421
diff --git a/release-notes/VERSION b/release-notes/VERSION
index f27c4c9..6a6f160 100644
--- a/release-notes/VERSION
+++ b/release-notes/VERSION
@@ -7,6 +7,7 @@
 2.8.5 (not yet released)
 
 #1417: Further issues with `@JsonInclude` with `NON_DEFAULT`
+#1421: ACCEPT_SINGLE_VALUE_AS_ARRAY partially broken in 2.7.x, 2.8.x
 #1429: `StdKeyDeserializer` can erroneously use a static factory method
   with more than one argument
 #1432: Off by 1 bug in PropertyValueBuffer