diff --git a/UPGRADE.md b/UPGRADE.md
index 95641778e1f..42cb24631d0 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -1,5 +1,9 @@
 # Upgrade to 3.0
 
+## BC BREAK: Remove `Doctrine\ORM\Proxy\Autoloader`
+
+Use `Doctrine\Common\Proxy\Autoloader` instead.
+
 ## BC BREAK: Remove `Doctrine\ORM\Tools\DisconnectedClassMetadataFactory`
 
 No replacement is provided.
diff --git a/lib/Doctrine/ORM/Proxy/Autoloader.php b/lib/Doctrine/ORM/Proxy/Autoloader.php
deleted file mode 100644
index d9793fceb8e..00000000000
--- a/lib/Doctrine/ORM/Proxy/Autoloader.php
+++ /dev/null
@@ -1,14 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Doctrine\ORM\Proxy;
-
-use Doctrine\Common\Proxy\Autoloader as BaseAutoloader;
-
-/**
- * @deprecated use \Doctrine\Common\Proxy\Autoloader instead
- */
-class Autoloader extends BaseAutoloader
-{
-}