Add entry for issue #691291.
diff --git a/Misc/NEWS b/Misc/NEWS
index 97ddc59..c55888b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -35,6 +35,9 @@
 Library
 -------
 
+- Issue #691291: codecs.open() should not convert end of lines on reading and
+  writing.
+
 - Issue #7975: correct regression in dict methods supported by bsddb.dbshelve.
 
 - Issue #7959: ctypes callback functions are now registered correctly