diff --git a/c++/PROBLEMS b/c++/PROBLEMS
index 7f2a7df..daa3754 100644
--- a/c++/PROBLEMS
+++ b/c++/PROBLEMS
@@ -1,5 +1,6 @@
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--- Copyright (c) 1998,2006 Free Software Foundation, Inc.                    --
+-- Copyright 2020 Thomas E. Dickey                                           --
+-- Copyright 1998,2006 Free Software Foundation, Inc.                        --
 --                                                                           --
 -- Permission is hereby granted, free of charge, to any person obtaining a   --
 -- copy of this software and associated documentation files (the             --
@@ -25,7 +26,7 @@
 -- sale, use or other dealings in this Software without prior written        --
 -- authorization.                                                            --
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--- $Id: PROBLEMS,v 1.3 2006/04/22 22:19:37 tom Exp $
+-- $Id: PROBLEMS,v 1.4 2020/02/02 23:34:34 tom Exp $
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 This is a list of open problems. This mainly lists known missing pieces
 and design flaws.