diff --git a/scripts/update-copyright.sh b/scripts/update-copyright.sh
index 1b5a67b6..d2a2c001 100755
--- a/scripts/update-copyright.sh
+++ b/scripts/update-copyright.sh
@@ -17,12 +17,13 @@ set -eu
 
 year=$(date +%Y)
 
-grep -l -r 'Copyright *(C).*Vermaseren' . | while IFS= read -r f; do
+grep -l -r 'Copyright *(C).*' . | while IFS= read -r f; do
   case $f in
     *update-copyright.sh)
       ;;
     *)
       sed -i "s/Copyright *(C).*Vermaseren/Copyright (C) 1984-$year J.A.M. Vermaseren/g" "$f"
+      sed -i "s/Copyright *(C).*Kaneko/Copyright (C) 2023-$year T. Kaneko/g" "$f"
       ;;
   esac
 done
diff --git a/sources/argument.c b/sources/argument.c
index 93e878bd..9e972d5f 100644
--- a/sources/argument.c
+++ b/sources/argument.c
@@ -6,7 +6,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/bugtool.c b/sources/bugtool.c
index 90a3afb2..1074194d 100644
--- a/sources/bugtool.c
+++ b/sources/bugtool.c
@@ -5,7 +5,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/checkpoint.c b/sources/checkpoint.c
index 177442b6..8ef50b98 100644
--- a/sources/checkpoint.c
+++ b/sources/checkpoint.c
@@ -53,7 +53,7 @@
   	#] Explanations : 
   	#[ License :
  *
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/comexpr.c b/sources/comexpr.c
index 02da6b4c..f352b447 100644
--- a/sources/comexpr.c
+++ b/sources/comexpr.c
@@ -7,7 +7,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/compcomm.c b/sources/compcomm.c
index 440ea9c1..21eedf54 100644
--- a/sources/compcomm.c
+++ b/sources/compcomm.c
@@ -9,7 +9,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/compiler.c b/sources/compiler.c
index dcaa3c0e..acf3b3a5 100644
--- a/sources/compiler.c
+++ b/sources/compiler.c
@@ -14,7 +14,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/compress.c b/sources/compress.c
index aa5dd221..58a800c6 100644
--- a/sources/compress.c
+++ b/sources/compress.c
@@ -6,7 +6,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/comtool.c b/sources/comtool.c
index c1269591..ace43f4b 100644
--- a/sources/comtool.c
+++ b/sources/comtool.c
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/comtool.h b/sources/comtool.h
index 02cd1c09..5aa3c380 100644
--- a/sources/comtool.h
+++ b/sources/comtool.h
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/declare.h b/sources/declare.h
index 4d6bfcca..61ea6aa4 100644
--- a/sources/declare.h
+++ b/sources/declare.h
@@ -8,7 +8,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/diagrams.c b/sources/diagrams.c
index 68354878..7edd9c50 100644
--- a/sources/diagrams.c
+++ b/sources/diagrams.c
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/diawrap.cc b/sources/diawrap.cc
index e9b0800f..8eb140f4 100644
--- a/sources/diawrap.cc
+++ b/sources/diawrap.cc
@@ -1,3 +1,33 @@
+/** @file diawrap.cc
+ *
+ *   Functions with interface FORM with grcc, to implement the diagrams_ function.
+ */
+/* #[ License : */
+/*
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
+ *   When using this file you are requested to refer to the publication
+ *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
+ *   This is considered a matter of courtesy as the development was paid
+ *   for by FOM the Dutch physics granting agency and we would like to
+ *   be able to track its scientific use to convince FOM of its value
+ *   for the community.
+ *
+ *   This file is part of FORM.
+ *
+ *   FORM is free software: you can redistribute it and/or modify it under the
+ *   terms of the GNU General Public License as published by the Free Software
+ *   Foundation, either version 3 of the License, or (at your option) any later
+ *   version.
+ *
+ *   FORM is distributed in the hope that it will be useful, but WITHOUT ANY
+ *   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ *   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ *   details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with FORM.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/* #] License : */
 //	#[ Includes : diawrap.cc
 
 extern "C" {
diff --git a/sources/dict.c b/sources/dict.c
index 39c28528..2801e2f5 100644
--- a/sources/dict.c
+++ b/sources/dict.c
@@ -17,7 +17,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/dollar.c b/sources/dollar.c
index cdfc1faf..c02c48d4 100644
--- a/sources/dollar.c
+++ b/sources/dollar.c
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/evaluate.c b/sources/evaluate.c
index 936a4f40..98e977d2 100644
--- a/sources/evaluate.c
+++ b/sources/evaluate.c
@@ -1,3 +1,33 @@
+/** @file evaluate.c
+ *
+ *   Evaluation of functions for the floating-point system, by interfacing with MPFR.
+ */
+/* #[ License : */
+/*
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
+ *   When using this file you are requested to refer to the publication
+ *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
+ *   This is considered a matter of courtesy as the development was paid
+ *   for by FOM the Dutch physics granting agency and we would like to
+ *   be able to track its scientific use to convince FOM of its value
+ *   for the community.
+ *
+ *   This file is part of FORM.
+ *
+ *   FORM is free software: you can redistribute it and/or modify it under the
+ *   terms of the GNU General Public License as published by the Free Software
+ *   Foundation, either version 3 of the License, or (at your option) any later
+ *   version.
+ *
+ *   FORM is distributed in the hope that it will be useful, but WITHOUT ANY
+ *   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ *   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ *   details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with FORM.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/* #] License : */
 /*
   	#[ includes :
 */
diff --git a/sources/execute.c b/sources/execute.c
index 7c7bad27..ce330769 100644
--- a/sources/execute.c
+++ b/sources/execute.c
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/extcmd.c b/sources/extcmd.c
index 55199a39..2e575b42 100644
--- a/sources/extcmd.c
+++ b/sources/extcmd.c
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/factor.c b/sources/factor.c
index 99499c4b..cc4b8224 100644
--- a/sources/factor.c
+++ b/sources/factor.c
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/findpat.c b/sources/findpat.c
index 17538e85..48f707a4 100644
--- a/sources/findpat.c
+++ b/sources/findpat.c
@@ -12,7 +12,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/flintinterface.cc b/sources/flintinterface.cc
index 4c435877..2d736839 100644
--- a/sources/flintinterface.cc
+++ b/sources/flintinterface.cc
@@ -3,6 +3,32 @@
  *   Contains functions which interface with FLINT functions to perform arithmetic with uni- and
  *   multi-variate polynomials and perform factorization.
  */
+/* #[ License : */
+/*
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
+ *   When using this file you are requested to refer to the publication
+ *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
+ *   This is considered a matter of courtesy as the development was paid
+ *   for by FOM the Dutch physics granting agency and we would like to
+ *   be able to track its scientific use to convince FOM of its value
+ *   for the community.
+ *
+ *   This file is part of FORM.
+ *
+ *   FORM is free software: you can redistribute it and/or modify it under the
+ *   terms of the GNU General Public License as published by the Free Software
+ *   Foundation, either version 3 of the License, or (at your option) any later
+ *   version.
+ *
+ *   FORM is distributed in the hope that it will be useful, but WITHOUT ANY
+ *   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ *   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ *   details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with FORM.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/* #] License : */
 
 #ifdef HAVE_CONFIG_H
 #ifndef CONFIG_H_INCLUDED
diff --git a/sources/flintinterface.h b/sources/flintinterface.h
index 203c15dd..88386b0f 100644
--- a/sources/flintinterface.h
+++ b/sources/flintinterface.h
@@ -3,6 +3,32 @@
  *
  *   Prototypes for functions in flintinterface.cc
  */
+/* #[ License : */
+/*
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
+ *   When using this file you are requested to refer to the publication
+ *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
+ *   This is considered a matter of courtesy as the development was paid
+ *   for by FOM the Dutch physics granting agency and we would like to
+ *   be able to track its scientific use to convince FOM of its value
+ *   for the community.
+ *
+ *   This file is part of FORM.
+ *
+ *   FORM is free software: you can redistribute it and/or modify it under the
+ *   terms of the GNU General Public License as published by the Free Software
+ *   Foundation, either version 3 of the License, or (at your option) any later
+ *   version.
+ *
+ *   FORM is distributed in the hope that it will be useful, but WITHOUT ANY
+ *   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ *   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ *   details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with FORM.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/* #] License : */
 
 extern "C" {
 #include "form3.h"
diff --git a/sources/flintwrap.cc b/sources/flintwrap.cc
index 7a9b34a8..83d97530 100644
--- a/sources/flintwrap.cc
+++ b/sources/flintwrap.cc
@@ -2,6 +2,32 @@
  *
  *   Contains functions to call FLINT interface from the rest of FORM.
  */
+/* #[ License : */
+/*
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
+ *   When using this file you are requested to refer to the publication
+ *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
+ *   This is considered a matter of courtesy as the development was paid
+ *   for by FOM the Dutch physics granting agency and we would like to
+ *   be able to track its scientific use to convince FOM of its value
+ *   for the community.
+ *
+ *   This file is part of FORM.
+ *
+ *   FORM is free software: you can redistribute it and/or modify it under the
+ *   terms of the GNU General Public License as published by the Free Software
+ *   Foundation, either version 3 of the License, or (at your option) any later
+ *   version.
+ *
+ *   FORM is distributed in the hope that it will be useful, but WITHOUT ANY
+ *   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ *   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ *   details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with FORM.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/* #] License : */
 
 extern "C" {
 #include "form3.h"
diff --git a/sources/float.c b/sources/float.c
index c496dc30..23bf112c 100644
--- a/sources/float.c
+++ b/sources/float.c
@@ -10,7 +10,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/form3.h b/sources/form3.h
index 224c6cc0..cb2410dd 100644
--- a/sources/form3.h
+++ b/sources/form3.h
@@ -7,7 +7,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/fsizes.h b/sources/fsizes.h
index d20f4489..bcd877a0 100644
--- a/sources/fsizes.h
+++ b/sources/fsizes.h
@@ -5,7 +5,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/ftypes.h b/sources/ftypes.h
index b3b354a4..a3388485 100644
--- a/sources/ftypes.h
+++ b/sources/ftypes.h
@@ -8,7 +8,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/function.c b/sources/function.c
index 1f0c963d..2d50d772 100644
--- a/sources/function.c
+++ b/sources/function.c
@@ -7,7 +7,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/fwin.h b/sources/fwin.h
index 5d596ce5..3159ca97 100644
--- a/sources/fwin.h
+++ b/sources/fwin.h
@@ -5,7 +5,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/grcc.cc b/sources/grcc.cc
index e2d2829a..cc1d5560 100644
--- a/sources/grcc.cc
+++ b/sources/grcc.cc
@@ -2,6 +2,29 @@
 //**************************************************************
 // grcc.cc
 
+/* #[ License : */
+/*
+ *   Copyright (C) 2023-2026 T. Kaneko
+ *   When using this file you are requested to refer to the publication
+ *   Comput.Phys.Commun. 92 (1995) 127-152
+ *
+ *   This file is part of FORM.
+ *
+ *   FORM is free software: you can redistribute it and/or modify it under the
+ *   terms of the GNU General Public License as published by the Free Software
+ *   Foundation, either version 3 of the License, or (at your option) any later
+ *   version.
+ *
+ *   FORM is distributed in the hope that it will be useful, but WITHOUT ANY
+ *   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ *   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ *   details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with FORM.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/* #] License : */
+
 #ifndef NOFORM
 extern "C" {
 #include "form3.h"
diff --git a/sources/grcc.h b/sources/grcc.h
index 4efb9d8e..34317d2f 100644
--- a/sources/grcc.h
+++ b/sources/grcc.h
@@ -1,5 +1,28 @@
 #pragma once
 
+/* #[ License : */
+/*
+ *   Copyright (C) 2023-2026 T. Kaneko
+ *   When using this file you are requested to refer to the publication
+ *   Comput.Phys.Commun. 92 (1995) 127-152
+ *
+ *   This file is part of FORM.
+ *
+ *   FORM is free software: you can redistribute it and/or modify it under the
+ *   terms of the GNU General Public License as published by the Free Software
+ *   Foundation, either version 3 of the License, or (at your option) any later
+ *   version.
+ *
+ *   FORM is distributed in the hope that it will be useful, but WITHOUT ANY
+ *   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ *   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ *   details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with FORM.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/* #] License : */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/sources/grccparam.h b/sources/grccparam.h
index 88d03e5d..61df472e 100644
--- a/sources/grccparam.h
+++ b/sources/grccparam.h
@@ -2,6 +2,29 @@
 #else
 #define GRCC_PARAM_H
 
+/* #[ License : */
+/*
+ *   Copyright (C) 2023-2026 T. Kaneko
+ *   When using this file you are requested to refer to the publication
+ *   Comput.Phys.Commun. 92 (1995) 127-152
+ *
+ *   This file is part of FORM.
+ *
+ *   FORM is free software: you can redistribute it and/or modify it under the
+ *   terms of the GNU General Public License as published by the Free Software
+ *   Foundation, either version 3 of the License, or (at your option) any later
+ *   version.
+ *
+ *   FORM is distributed in the hope that it will be useful, but WITHOUT ANY
+ *   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ *   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ *   details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with FORM.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/* #] License : */
+
 /*==============================================================
  * Parameters
  */
diff --git a/sources/if.c b/sources/if.c
index 3a9823a0..0e0f2485 100644
--- a/sources/if.c
+++ b/sources/if.c
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/index.c b/sources/index.c
index 4ea24c74..70fc26db 100644
--- a/sources/index.c
+++ b/sources/index.c
@@ -7,7 +7,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/inivar.h b/sources/inivar.h
index 9a15b089..6114fbf7 100644
--- a/sources/inivar.h
+++ b/sources/inivar.h
@@ -6,7 +6,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/lus.c b/sources/lus.c
index 8aae0fc7..a993fd1d 100644
--- a/sources/lus.c
+++ b/sources/lus.c
@@ -6,7 +6,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/mallocprotect.h b/sources/mallocprotect.h
index ef7cb256..d314c68a 100644
--- a/sources/mallocprotect.h
+++ b/sources/mallocprotect.h
@@ -9,7 +9,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/message.c b/sources/message.c
index bb28e44b..6083707d 100644
--- a/sources/message.c
+++ b/sources/message.c
@@ -8,7 +8,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/minos.c b/sources/minos.c
index f3b014c8..7a525d93 100644
--- a/sources/minos.c
+++ b/sources/minos.c
@@ -6,7 +6,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/minos.h b/sources/minos.h
index faab2791..d8825a26 100644
--- a/sources/minos.h
+++ b/sources/minos.h
@@ -16,7 +16,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/model.c b/sources/model.c
index 81ce8606..f296f137 100644
--- a/sources/model.c
+++ b/sources/model.c
@@ -1,3 +1,33 @@
+/** @file model.c
+ *
+ *   Implementation of "Model", required by the diagrams_ function.
+ */
+/* #[ License : */
+/*
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
+ *   When using this file you are requested to refer to the publication
+ *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
+ *   This is considered a matter of courtesy as the development was paid
+ *   for by FOM the Dutch physics granting agency and we would like to
+ *   be able to track its scientific use to convince FOM of its value
+ *   for the community.
+ *
+ *   This file is part of FORM.
+ *
+ *   FORM is free software: you can redistribute it and/or modify it under the
+ *   terms of the GNU General Public License as published by the Free Software
+ *   Foundation, either version 3 of the License, or (at your option) any later
+ *   version.
+ *
+ *   FORM is distributed in the hope that it will be useful, but WITHOUT ANY
+ *   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ *   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ *   details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with FORM.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/* #] License : */
 /*
   	#[ Explanations :
 
diff --git a/sources/module.c b/sources/module.c
index f9aa7453..5ac2cbe9 100644
--- a/sources/module.c
+++ b/sources/module.c
@@ -6,7 +6,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/mpi.c b/sources/mpi.c
index 640d5f5d..2a8aa573 100644
--- a/sources/mpi.c
+++ b/sources/mpi.c
@@ -8,7 +8,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/mpidbg.h b/sources/mpidbg.h
index 28fc6748..924096e6 100644
--- a/sources/mpidbg.h
+++ b/sources/mpidbg.h
@@ -9,7 +9,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/mytime.cc b/sources/mytime.cc
index 9a0cfadc..f9f0ed45 100644
--- a/sources/mytime.cc
+++ b/sources/mytime.cc
@@ -1,3 +1,30 @@
+/* #[ License : */
+/*
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
+ *   When using this file you are requested to refer to the publication
+ *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
+ *   This is considered a matter of courtesy as the development was paid
+ *   for by FOM the Dutch physics granting agency and we would like to
+ *   be able to track its scientific use to convince FOM of its value
+ *   for the community.
+ *
+ *   This file is part of FORM.
+ *
+ *   FORM is free software: you can redistribute it and/or modify it under the
+ *   terms of the GNU General Public License as published by the Free Software
+ *   Foundation, either version 3 of the License, or (at your option) any later
+ *   version.
+ *
+ *   FORM is distributed in the hope that it will be useful, but WITHOUT ANY
+ *   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ *   FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ *   details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with FORM.  If not, see <http://www.gnu.org/licenses/>.
+ */
+/* #] License : */
+
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif
diff --git a/sources/mytime.h b/sources/mytime.h
index 132cfe76..7dab8bc1 100644
--- a/sources/mytime.h
+++ b/sources/mytime.h
@@ -1,7 +1,7 @@
 #pragma once
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/names.c b/sources/names.c
index b22d0c73..3e39c28a 100644
--- a/sources/names.c
+++ b/sources/names.c
@@ -8,7 +8,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/normal.c b/sources/normal.c
index 582d6d27..7e5254ff 100644
--- a/sources/normal.c
+++ b/sources/normal.c
@@ -9,7 +9,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/notation.c b/sources/notation.c
index 78271160..2ed0e643 100644
--- a/sources/notation.c
+++ b/sources/notation.c
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/opera.c b/sources/opera.c
index ed55d9c4..89263497 100644
--- a/sources/opera.c
+++ b/sources/opera.c
@@ -8,7 +8,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/optimize.cc b/sources/optimize.cc
index 4336f703..fc67c38c 100644
--- a/sources/optimize.cc
+++ b/sources/optimize.cc
@@ -5,7 +5,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/parallel.c b/sources/parallel.c
index 05b7f3ac..a8b1e690 100644
--- a/sources/parallel.c
+++ b/sources/parallel.c
@@ -10,7 +10,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/parallel.h b/sources/parallel.h
index 026c1e58..dbd8b96f 100644
--- a/sources/parallel.h
+++ b/sources/parallel.h
@@ -8,7 +8,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/pattern.c b/sources/pattern.c
index 7a7ffc20..07b1cbc1 100644
--- a/sources/pattern.c
+++ b/sources/pattern.c
@@ -11,7 +11,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/poly.cc b/sources/poly.cc
index 8bf1869d..013a2d1e 100644
--- a/sources/poly.cc
+++ b/sources/poly.cc
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/poly.h b/sources/poly.h
index 0ea34f93..5e8de70b 100644
--- a/sources/poly.h
+++ b/sources/poly.h
@@ -1,7 +1,7 @@
 #pragma once
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/polyfact.cc b/sources/polyfact.cc
index 70148560..ada14a4b 100644
--- a/sources/polyfact.cc
+++ b/sources/polyfact.cc
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/polyfact.h b/sources/polyfact.h
index dba1fa31..beca5fa7 100644
--- a/sources/polyfact.h
+++ b/sources/polyfact.h
@@ -1,7 +1,7 @@
 #pragma once
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/polygcd.cc b/sources/polygcd.cc
index d96032ad..d6eb77ca 100644
--- a/sources/polygcd.cc
+++ b/sources/polygcd.cc
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/polygcd.h b/sources/polygcd.h
index bfcb7a44..d630e9f5 100644
--- a/sources/polygcd.h
+++ b/sources/polygcd.h
@@ -1,7 +1,7 @@
 #pragma once
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/polywrap.cc b/sources/polywrap.cc
index 88b149b7..b7caebe4 100644
--- a/sources/polywrap.cc
+++ b/sources/polywrap.cc
@@ -7,7 +7,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/portsignals.h b/sources/portsignals.h
index e83593cd..6b7b49ce 100644
--- a/sources/portsignals.h
+++ b/sources/portsignals.h
@@ -17,7 +17,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/pre.c b/sources/pre.c
index 42ba41b5..cee07818 100644
--- a/sources/pre.c
+++ b/sources/pre.c
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/proces.c b/sources/proces.c
index 40fb5cf5..ed2c433b 100644
--- a/sources/proces.c
+++ b/sources/proces.c
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/ratio.c b/sources/ratio.c
index 7d673479..6c8a70bf 100644
--- a/sources/ratio.c
+++ b/sources/ratio.c
@@ -7,7 +7,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/reken.c b/sources/reken.c
index 2b454ff7..902856a4 100644
--- a/sources/reken.c
+++ b/sources/reken.c
@@ -10,7 +10,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/reshuf.c b/sources/reshuf.c
index 818c25ed..f1a590e4 100644
--- a/sources/reshuf.c
+++ b/sources/reshuf.c
@@ -8,7 +8,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/sch.c b/sources/sch.c
index 7a66fe69..9a591cf9 100644
--- a/sources/sch.c
+++ b/sources/sch.c
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/setfile.c b/sources/setfile.c
index e2e76a59..a61cde24 100644
--- a/sources/setfile.c
+++ b/sources/setfile.c
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/smart.c b/sources/smart.c
index 3a7a84af..73b74325 100644
--- a/sources/smart.c
+++ b/sources/smart.c
@@ -11,7 +11,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/sort.c b/sources/sort.c
index 1fe2435a..3fbf39c9 100644
--- a/sources/sort.c
+++ b/sources/sort.c
@@ -16,7 +16,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/spectator.c b/sources/spectator.c
index 4cc0959d..96777da3 100644
--- a/sources/spectator.c
+++ b/sources/spectator.c
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/startup.c b/sources/startup.c
index 1b39678f..db5f0da5 100644
--- a/sources/startup.c
+++ b/sources/startup.c
@@ -7,7 +7,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/store.c b/sources/store.c
index 2fcdd15f..0a7ecd3a 100644
--- a/sources/store.c
+++ b/sources/store.c
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/structs.h b/sources/structs.h
index 32ad3416..74119d8c 100644
--- a/sources/structs.h
+++ b/sources/structs.h
@@ -16,7 +16,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/symmetr.c b/sources/symmetr.c
index 54bea747..a118429d 100644
--- a/sources/symmetr.c
+++ b/sources/symmetr.c
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/tables.c b/sources/tables.c
index d87ffb02..2b3a8dec 100644
--- a/sources/tables.c
+++ b/sources/tables.c
@@ -5,7 +5,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/threads.c b/sources/threads.c
index 7be36a0d..9176e4c6 100644
--- a/sources/threads.c
+++ b/sources/threads.c
@@ -21,7 +21,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/token.c b/sources/token.c
index db13575a..aca0e72d 100644
--- a/sources/token.c
+++ b/sources/token.c
@@ -7,7 +7,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/tools.c b/sources/tools.c
index 3af8b1e5..e1277b47 100644
--- a/sources/tools.c
+++ b/sources/tools.c
@@ -10,7 +10,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/transform.c b/sources/transform.c
index 3b951e66..d2b11fb8 100644
--- a/sources/transform.c
+++ b/sources/transform.c
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/unix.h b/sources/unix.h
index 0bd75a06..826bdbc0 100644
--- a/sources/unix.h
+++ b/sources/unix.h
@@ -5,7 +5,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/unixfile.c b/sources/unixfile.c
index d877f80c..bc819592 100644
--- a/sources/unixfile.c
+++ b/sources/unixfile.c
@@ -4,7 +4,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/variable.h b/sources/variable.h
index f64741f5..0060c1a1 100644
--- a/sources/variable.h
+++ b/sources/variable.h
@@ -12,7 +12,7 @@
 
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/vector.h b/sources/vector.h
index 9defdd2c..e52b33ca 100644
--- a/sources/vector.h
+++ b/sources/vector.h
@@ -19,7 +19,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid
diff --git a/sources/wildcard.c b/sources/wildcard.c
index b7d88f9f..9eebe1c7 100644
--- a/sources/wildcard.c
+++ b/sources/wildcard.c
@@ -11,7 +11,7 @@
  */
 /* #[ License : */
 /*
- *   Copyright (C) 1984-2023 J.A.M. Vermaseren
+ *   Copyright (C) 1984-2026 J.A.M. Vermaseren
  *   When using this file you are requested to refer to the publication
  *   J.A.M.Vermaseren "New features of FORM" math-ph/0010025
  *   This is considered a matter of courtesy as the development was paid