diff --git a/UPGRADE.md b/UPGRADE.md
index b71e10adb..e29cd0792 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -1,5 +1,9 @@
 # Upgrade to 2.5
 
+## Minor BC BREAK: remove $className parameter on AbstractEntityInheritancePersister#getSelectJoinColumnSQL
+
+As `$className` parameter is not used on its method body, it was safely removed.
+
 ## Minor BC BREAK: query cache key time is now a float
 
 As of 2.5.5, the `QueryCacheEntry#time` property will contain a float value