diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 0497a34f5eacd..0b82303725eeb 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,5 +1,11 @@
 ## unreleased ##
 
+*   Fix bug where tiny types are incorectly coerced as booleand when the length is more than 1.
+
+    Fixes #10620.
+
+    *Aaron Peterson*
+
 *   Also support extensions in PostgreSQL 9.1. This feature has been supported since 9.1.
 
     *kennyj*