#11763: don't use difflib in TestCase.assertMultiLineEqual if the strings are too long.
diff --git a/Misc/NEWS b/Misc/NEWS
index 8eefdaf..b4ba3b6 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -61,6 +61,9 @@
 Library
 -------
 
+- Issue #11763: don't use difflib in TestCase.assertMultiLineEqual if the
+  strings are too long.
+
 - Issue #11236: getpass.getpass responds to ctrl-c or ctrl-z on terminal.
 
 - Issue #11768: The signal handler of the signal module only calls