diff --git a/UPGRADE.md b/UPGRADE.md
index 7fdb3893346..f7c1165bdff 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -111,7 +111,8 @@ All drivers must implement the `convertException()` method which is now part of
 
 ## The `PingableConnection` interface is removed
 
-The functionality of pinging the server is no longer supported.
+The functionality of pinging the server is no longer supported. Lost
+connections are now automatically reconnected by Doctrine internally.
 
 ## BC BREAK: Deprecated driver-level classes and interfaces are removed.