diff --git a/typo3/sysext/backend/Resources/Private/Templates/Close.html b/typo3/sysext/backend/Resources/Private/Templates/Close.html
deleted file mode 100644
index 5a0cfc59ebc8e6e6a1ebe742d9066ecbc89939fa..0000000000000000000000000000000000000000
--- a/typo3/sysext/backend/Resources/Private/Templates/Close.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!DOCTYPE html>
-<html>
-	<head>
-		<!-- Close script, used in particular by FormEngine to close the current edit window -->
-		<!-- TYPO3 Script ID: typo3/sysext/backend/Resources/Private/Templates/Close.html -->
-		<meta charset="utf-8" />
-		<title>Close</title>
-		<script type="text/javascript">
-			self.close();
-			window.opener.location.reload(true);
-		</script>
-	</head>
-	<body>
-	</body>
-</html>
diff --git a/typo3/sysext/core/Documentation/Changelog/master/Breaking-83284-RemovedExtBackendPrivateTemplatesCloseHtml.rst b/typo3/sysext/core/Documentation/Changelog/master/Breaking-83284-RemovedExtBackendPrivateTemplatesCloseHtml.rst
new file mode 100644
index 0000000000000000000000000000000000000000..7869116610288c79c63571a104d48f89b5cbdb40
--- /dev/null
+++ b/typo3/sysext/core/Documentation/Changelog/master/Breaking-83284-RemovedExtBackendPrivateTemplatesCloseHtml.rst
@@ -0,0 +1,33 @@
+.. include:: ../../Includes.txt
+
+=============================================================================
+Breaking: #83284 - Removed EXT:backend/Resources/Private/Templates/Close.html
+=============================================================================
+
+See :issue:`83284`
+
+Description
+===========
+
+The file :php:`EXT:backend/Resources/Private/Templates/Close.html` has been removed.
+
+
+Impact
+======
+
+Accessing the file :php:`EXT:backend/Resources/Private/Templates/Close.html` will result in an empty string returned or an exception, depending on the code to access it.
+
+
+Affected Installations
+======================
+
+All instances, that manually access this file or use the extensions doing this..
+The extension scanner of the install tool will find affected extensions.
+
+
+Migration
+=========
+
+Use the file :php:`EXT:backend/Resources/Public/Html/Close.html` instead.
+
+.. index:: Backend, NotScanned