Issue #5117: Fixed root directory related issue on posixpath.relpath() and
ntpath.relpath().
diff --git a/Misc/NEWS b/Misc/NEWS
index b597bd5..3ff641c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -60,6 +60,9 @@
 Library
 -------
 
+- Issue #5117: Fixed root directory related issue on posixpath.relpath() and
+  ntpath.relpath().
+
 - Issue 9409: Fix the regex to match all kind of filenames, for interactive
   debugging in doctests.