diff --git a/Modules/almodule.c b/Modules/almodule.c
index e6ba1b0..fae85f6 100644
--- a/Modules/almodule.c
+++ b/Modules/almodule.c
@@ -1,5 +1,5 @@
 /**********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Modules/cgensupport.c b/Modules/cgensupport.c
index 9a33eb9..b24c80a 100644
--- a/Modules/cgensupport.c
+++ b/Modules/cgensupport.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Modules/config.c.in b/Modules/config.c.in
index 8855a50..0f41af8 100644
--- a/Modules/config.c.in
+++ b/Modules/config.c.in
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Modules/flmodule.c b/Modules/flmodule.c
index 876a88a..f51586a 100644
--- a/Modules/flmodule.c
+++ b/Modules/flmodule.c
@@ -1,5 +1,5 @@
 /**********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Modules/fmmodule.c b/Modules/fmmodule.c
index d2ede92..f3df6ce 100644
--- a/Modules/fmmodule.c
+++ b/Modules/fmmodule.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Modules/imgfile.c b/Modules/imgfile.c
index 8bf6d06..c18f158 100644
--- a/Modules/imgfile.c
+++ b/Modules/imgfile.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Modules/mathmodule.c b/Modules/mathmodule.c
index 76bfba2..00aa5eb 100644
--- a/Modules/mathmodule.c
+++ b/Modules/mathmodule.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Modules/pwdmodule.c b/Modules/pwdmodule.c
index 3b6a0c1..4d787ba 100644
--- a/Modules/pwdmodule.c
+++ b/Modules/pwdmodule.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 9e305fc..97fea09 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Modules/stdwinmodule.c b/Modules/stdwinmodule.c
index d3ecfb8..e1d3982 100644
--- a/Modules/stdwinmodule.c
+++ b/Modules/stdwinmodule.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/fileobject.c b/Objects/fileobject.c
index ce18cb3..47461f9 100644
--- a/Objects/fileobject.c
+++ b/Objects/fileobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index dba6681..d154cab 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index 212fbc9..a68704c 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/funcobject.c b/Objects/funcobject.c
index d522d70..a779ebb 100644
--- a/Objects/funcobject.c
+++ b/Objects/funcobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/intobject.c b/Objects/intobject.c
index 4c56bda..8ecffc2 100644
--- a/Objects/intobject.c
+++ b/Objects/intobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/listobject.c b/Objects/listobject.c
index 156cda1..6992a0f 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 4acbe0c..bf62c1f 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/methodobject.c b/Objects/methodobject.c
index f6777ea..3b7c016 100644
--- a/Objects/methodobject.c
+++ b/Objects/methodobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/moduleobject.c b/Objects/moduleobject.c
index b8a7213..bbe927c 100644
--- a/Objects/moduleobject.c
+++ b/Objects/moduleobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/object.c b/Objects/object.c
index 3b0b7d3..5f54b36 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/stringobject.c b/Objects/stringobject.c
index ca7bac6..b494f96 100644
--- a/Objects/stringobject.c
+++ b/Objects/stringobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c
index ab2cf18..0875a0c 100644
--- a/Objects/tupleobject.c
+++ b/Objects/tupleobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index 7ad43b3..e72f34c 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/acceler.c b/Parser/acceler.c
index 3a17e0e..5c1de91 100644
--- a/Parser/acceler.c
+++ b/Parser/acceler.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/bitset.c b/Parser/bitset.c
index 34e6e6e..2fd02be 100644
--- a/Parser/bitset.c
+++ b/Parser/bitset.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/firstsets.c b/Parser/firstsets.c
index 2b5cd02..8f3c70f 100644
--- a/Parser/firstsets.c
+++ b/Parser/firstsets.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/grammar.c b/Parser/grammar.c
index 3e31b07..dd2c58e 100644
--- a/Parser/grammar.c
+++ b/Parser/grammar.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/grammar1.c b/Parser/grammar1.c
index 565b2df..ed6815d 100644
--- a/Parser/grammar1.c
+++ b/Parser/grammar1.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/intrcheck.c b/Parser/intrcheck.c
index 5162e25..bd73f8b 100644
--- a/Parser/intrcheck.c
+++ b/Parser/intrcheck.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/listnode.c b/Parser/listnode.c
index 774abcd..7b5dfa1 100644
--- a/Parser/listnode.c
+++ b/Parser/listnode.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/metagrammar.c b/Parser/metagrammar.c
index 12c5d5b..7a3e315 100644
--- a/Parser/metagrammar.c
+++ b/Parser/metagrammar.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/node.c b/Parser/node.c
index 9ce7a31..b59e4f7 100644
--- a/Parser/node.c
+++ b/Parser/node.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/parser.c b/Parser/parser.c
index 141710a..9ae2702 100644
--- a/Parser/parser.c
+++ b/Parser/parser.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/parsetok.c b/Parser/parsetok.c
index 95fb123..ec0437e 100644
--- a/Parser/parsetok.c
+++ b/Parser/parsetok.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/pgen.c b/Parser/pgen.c
index bd1610e..d88245b 100644
--- a/Parser/pgen.c
+++ b/Parser/pgen.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/pgenmain.c b/Parser/pgenmain.c
index 6737326..c19a446 100644
--- a/Parser/pgenmain.c
+++ b/Parser/pgenmain.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/printgrammar.c b/Parser/printgrammar.c
index a9845a3..ead876f 100644
--- a/Parser/printgrammar.c
+++ b/Parser/printgrammar.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c
index 1070d13..5b5b9b2 100644
--- a/Parser/tokenizer.c
+++ b/Parser/tokenizer.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index efeabcc..d6ae46f 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/cgensupport.c b/Python/cgensupport.c
index 9a33eb9..b24c80a 100644
--- a/Python/cgensupport.c
+++ b/Python/cgensupport.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/errors.c b/Python/errors.c
index 5a46d4e..5814dd7 100644
--- a/Python/errors.c
+++ b/Python/errors.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/fmod.c b/Python/fmod.c
index 1724b9e..607f6a5 100644
--- a/Python/fmod.c
+++ b/Python/fmod.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/getcwd.c b/Python/getcwd.c
index acdf117..96c2291 100644
--- a/Python/getcwd.c
+++ b/Python/getcwd.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/import.c b/Python/import.c
index c76d8c9..5667c77 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/marshal.c b/Python/marshal.c
index aac2672..8e68e28 100644
--- a/Python/marshal.c
+++ b/Python/marshal.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/modsupport.c b/Python/modsupport.c
index b7239d3..4512844 100644
--- a/Python/modsupport.c
+++ b/Python/modsupport.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/pythonmain.c b/Python/pythonmain.c
index 3a37544..ea0d67d 100644
--- a/Python/pythonmain.c
+++ b/Python/pythonmain.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/strerror.c b/Python/strerror.c
index 37f9964..ce9bd98 100644
--- a/Python/strerror.c
+++ b/Python/strerror.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/structmember.c b/Python/structmember.c
index bd04e7c..173b3f0 100644
--- a/Python/structmember.c
+++ b/Python/structmember.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/traceback.c b/Python/traceback.c
index ea99152..bcd2f76 100644
--- a/Python/traceback.c
+++ b/Python/traceback.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved