diff --git a/Copyright.txt b/Copyright.txt
index 72969b016c99309f901f53298707589411346083..3f4751f7ea0449153572a10cc69fe4ab5081c697 100644
--- a/Copyright.txt
+++ b/Copyright.txt
@@ -1,17 +1,4 @@
-Copyright 2012 - 2017
-
-Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
-Deutsches Klimarechenzentrum GmbH
-Bundesstr. 45a
-20146 Hamburg
-Germany
-
-Luis Kornblueh
-Max-Planck-Institut fuer Meteorologie
-Bundesstr. 53
-20146 Hamburg
-Germany
-
+Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/src/aec.c b/src/aec.c
index bbdd48053b45efffa31b2724e561aa42ab29a5c8..44234a8011dc92c99182d75bef3815d0932a9ae8 100644
--- a/src/aec.c
+++ b/src/aec.c
@@ -2,19 +2,7 @@
  * @file aec.c
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/decode.c b/src/decode.c
index 7a03bd6a6d3c6f0fdf1ab9cb4c188039379f608b..39d568a533c5e4f365b7329480b1e063a21fd058 100644
--- a/src/decode.c
+++ b/src/decode.c
@@ -2,19 +2,7 @@
  * @file decode.c
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/decode.h b/src/decode.h
index 571cfe3c206dfe4dfb1f044351e4cc26dbacd19f..49179ffe92916966c9dd2a9bb10653e6bba932b3 100644
--- a/src/decode.h
+++ b/src/decode.h
@@ -2,19 +2,7 @@
  * @file decode.h
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/encode.c b/src/encode.c
index 47facb318380a29c729ad2467685592b15d4c612..1fec8c07aa9cb3f52101cefe3176bb6eaca60721 100644
--- a/src/encode.c
+++ b/src/encode.c
@@ -2,19 +2,7 @@
  * @file encode.c
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/encode.h b/src/encode.h
index 7a89cb9a290791312534547c746eb2d951c01a4f..141376c790f564669c43f54aaf35f38b67e2ee14 100644
--- a/src/encode.h
+++ b/src/encode.h
@@ -2,19 +2,7 @@
  * @file encode.h
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/encode_accessors.c b/src/encode_accessors.c
index 488494100514655fe626c45ca5a68f7ba5105930..077a884f498b647bc8b7936d0e65a7e40d6fbc9b 100644
--- a/src/encode_accessors.c
+++ b/src/encode_accessors.c
@@ -2,19 +2,7 @@
  * @file encode_accessors.c
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/encode_accessors.h b/src/encode_accessors.h
index 2a1cf83c5775aa9b0673f538130fe01dccadb9f2..10d0efe3fafdea00d3540562daf8a6ecca251b59 100644
--- a/src/encode_accessors.h
+++ b/src/encode_accessors.h
@@ -2,19 +2,7 @@
  * @file encode_accessors.h
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/libaec.h b/src/libaec.h
index afb166a8377dce440ed7d7eb43712cf996441b06..43a5d6f1f6f32b42ebfe693730f3f96eada3a1dd 100644
--- a/src/libaec.h
+++ b/src/libaec.h
@@ -2,19 +2,7 @@
  * @file libaec.h
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/sz_compat.c b/src/sz_compat.c
index e3211cb2553b232b8e9a5f42030b22149aea5c3d..3d3344af108d6b73352571af64f9ad21ed7e0a92 100644
--- a/src/sz_compat.c
+++ b/src/sz_compat.c
@@ -2,19 +2,7 @@
  * @file sz_compat.c
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/szlib.h b/src/szlib.h
index 18b6a3cdfb1589b277719413abdb27cfac9aaaac..577847cba9c472dc474dc9f07b125dbaecfaa0f9 100644
--- a/src/szlib.h
+++ b/src/szlib.h
@@ -2,19 +2,7 @@
  * @file szlib.h
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/utime.c b/src/utime.c
index da20654b66afa1d320d8410a34433ea47d451621..3d85e41d9175a06cb97fce9deaf7f901b22b7e86 100644
--- a/src/utime.c
+++ b/src/utime.c
@@ -4,19 +4,7 @@
  * @author Thomas Jahns, Deutsches Klimarechenzentrum
  *
  * @section LICENSE
- * Copyright 2012 - 2019
- *
- * Mathis Rosenhauer, Moritz Hanke, Joerg Behrens
- * Deutsches Klimarechenzentrum GmbH
- * Bundesstr. 45a
- * 20146 Hamburg Germany
- *
- * Luis Kornblueh
- * Max-Planck-Institut fuer Meteorologie
- * Bundesstr. 53
- * 20146 Hamburg
- * Germany
- *
+ * Copyright 2021 Mathis Rosenhauer, Moritz Hanke, Joerg Behrens, Luis Kornblueh
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without