--- rpl/src/optimisation.c	2017/07/13 07:57:31	1.77
+++ rpl/src/optimisation.c	2019/02/03 14:41:27	1.82
@@ -1,7 +1,7 @@
 /*
 ================================================================================
-  RPL/2 (R) version 4.1.27
-  Copyright (C) 1989-2017 Dr. BERTRAND Joël
+  RPL/2 (R) version 4.1.31
+  Copyright (C) 1989-2019 Dr. BERTRAND Joël
 
   This file is part of RPL/2.