diff --git a/README.md b/README.md
index 5b3d20cd..10d6c32e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-© Ihor Mirzov, July 2020  
+© Ihor Mirzov, 2019-2021  
 Distributed under GNU General Public License v3.0
 
 <br/><br/>
@@ -92,9 +92,7 @@ Get [Python3](https://www.python.org/downloads/) (>3.6) and install it.
 
 [Download latest release](https://github.com/calculix/cae/releases) (source code) and unpack it.
 
-Open terminal in a directory where you've unpacked CAE.
-
-Allow all files to be executed (Linux only):
+Open terminal in a directory where you've unpacked CAE. Allow all files to be executed (Linux only):
 
     sudo chmod -R 777 ./*
 
diff --git a/config/kom.xml b/config/kom.xml
index d0536e94..fe105abc 100644
--- a/config/kom.xml
+++ b/config/kom.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
-	© Ihor Mirzov, 2019-2020
+	© Ihor Mirzov, 2019-2021
 	Distributed under GNU General Public License v3.0
 
 	CalculiX Keyword Object Model
diff --git a/src/actions.py b/src/actions.py
index 0f981a5d..b27c96bb 100644
--- a/src/actions.py
+++ b/src/actions.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Main window actions - all processed signals. """
diff --git a/src/cae.py b/src/cae.py
index 61ecb608..e1dca0cb 100644
--- a/src/cae.py
+++ b/src/cae.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Main module.
diff --git a/src/clean.py b/src/clean.py
index c28f4183..7cc6868b 100644
--- a/src/clean.py
+++ b/src/clean.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Methods for cleaning up temporary/unused files/folders """
diff --git a/src/doc.py b/src/doc.py
index c94e78c0..f9f0a5e1 100644
--- a/src/doc.py
+++ b/src/doc.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 A tool to prepare new release of CrunchiX HTML help pages """
diff --git a/src/file_tools.py b/src/file_tools.py
index b3f6df1c..fa32fcc0 100644
--- a/src/file_tools.py
+++ b/src/file_tools.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Method to read files. """
diff --git a/src/gui/cgx.py b/src/gui/cgx.py
index ff0c046e..2baf643b 100644
--- a/src/gui/cgx.py
+++ b/src/gui/cgx.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Methods for GraphiX window. """
diff --git a/src/gui/keyword_dialog.py b/src/gui/keyword_dialog.py
index 27fa4a11..ba0f6139 100644
--- a/src/gui/keyword_dialog.py
+++ b/src/gui/keyword_dialog.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Dialog window to create/edit keyword's implementation.
diff --git a/src/gui/log.py b/src/gui/log.py
index 96a7c607..bcc6ac31 100644
--- a/src/gui/log.py
+++ b/src/gui/log.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Custon logging handlers for catching CCX and CGX output.
diff --git a/src/importer.py b/src/importer.py
index a873da95..ed4622ab 100644
--- a/src/importer.py
+++ b/src/importer.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 File importer:
diff --git a/src/model/__init__.py b/src/model/__init__.py
index 833b8eb0..48f93078 100644
--- a/src/model/__init__.py
+++ b/src/model/__init__.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Model unites KOM object and parsers.
diff --git a/src/model/job.py b/src/model/job.py
index f8976947..466028e2 100644
--- a/src/model/job.py
+++ b/src/model/job.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Job submition and convertion. Run a detached process and
diff --git a/src/model/kom.py b/src/model/kom.py
index 41da04aa..b63e2288 100644
--- a/src/model/kom.py
+++ b/src/model/kom.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 CalculiX Keyword Object Model (hierarchy).
diff --git a/src/model/parsers/mesh.py b/src/model/parsers/mesh.py
index 7896db9a..dcdc0aa6 100644
--- a/src/model/parsers/mesh.py
+++ b/src/model/parsers/mesh.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Parses finite element mesh from the CalculiX .inp-file.
diff --git a/src/path.py b/src/path.py
index 32f36c20..784358ae 100644
--- a/src/path.py
+++ b/src/path.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Absolute paths to the application's main folders. """
diff --git a/src/settings.py b/src/settings.py
index dbedbb10..09a7a0e4 100644
--- a/src/settings.py
+++ b/src/settings.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Application's settings.
diff --git a/src/tests.py b/src/tests.py
index fefb4b4b..9aacbf69 100644
--- a/src/tests.py
+++ b/src/tests.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Utilities for testing """
diff --git a/src/tree.py b/src/tree.py
index 52bde9ca..0e221429 100644
--- a/src/tree.py
+++ b/src/tree.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-""" © Ihor Mirzov, 2019-2020
+""" © Ihor Mirzov, 2019-2021
 Distributed under GNU General Public License v3.0
 
 Methods to work with main window's treeView widget. """