diff --git a/.build.yml b/.build.yml
index 1005321..32b8b11 100644
--- a/.build.yml
+++ b/.build.yml
@@ -1,6 +1,6 @@
 # Build file for OOMAnalyser
 #
-# Copyright (c) 2020-2022 Carsten Grohmann
+# Copyright (c) 2020-2023 Carsten Grohmann
 # License: MIT (see LICENSE.txt)
 # THIS PROGRAM COMES WITH NO WARRANTY
 
diff --git a/.gitignore b/.gitignore
index f42189a..8099c8f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 # Files to be ignored by Git
 #
-# Copyright (c) 2017-2022 Carsten Grohmann
+# Copyright (c) 2017-2023 Carsten Grohmann
 # License: MIT (see LICENSE.txt)
 # THIS PROGRAM COMES WITH NO WARRANTY
 
diff --git a/LICENSE.txt b/LICENSE.txt
index 30d4bfe..8f5d278 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2017-2022 Carsten Grohmann mail <add at here> carstengrohmann.de
+Copyright (c) 2017-2023 Carsten Grohmann mail <add at here> carstengrohmann.de
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
@@ -16,4 +16,4 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
\ No newline at end of file
+SOFTWARE.
diff --git a/Makefile b/Makefile
index 5e70dd0..7898f93 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 # Makefile for OOMAnalyser
 #
-# Copyright (c) 2017-2022 Carsten Grohmann
+# Copyright (c) 2017-2023 Carsten Grohmann
 # License: MIT (see LICENSE.txt)
 # THIS PROGRAM COMES WITH NO WARRANTY
 
diff --git a/OOMAnalyser.html b/OOMAnalyser.html
index 8d4e864..6d416eb 100644
--- a/OOMAnalyser.html
+++ b/OOMAnalyser.html
@@ -2,7 +2,7 @@
 <!--
 HTML for OOMAnalyser
 
-Copyright (c) 2017-2022 Carsten Grohmann
+Copyright (c) 2017-2023 Carsten Grohmann
 License: MIT (see LICENSE.txt)
 THIS PROGRAM COMES WITH NO WARRANTY
 -->
@@ -939,7 +939,7 @@ window.onerror = function (msg, url, lineNo, columnNo, errorObj) {
 
 <div class="js-text--default-hide js-text--display-none" id="changelog">
 
-    <h3>Version 0.6.0 - 2022-XX-XX:</h3>
+    <h3>Version 0.6.0 - 2023-XX-XX:</h3>
 
     <h4>General</h4>
     <ol>
@@ -1051,14 +1051,14 @@ window.onerror = function (msg, url, lineNo, columnNo, errorObj) {
 
 <div class="footer">
     OOMAnalyser <span id="version"></span> |
-    Copyright (C) 2017-2022 Carsten Grohmann |
+    Copyright (C) 2017-2023 Carsten Grohmann |
     <a href="javascript:void(0);" onclick="OOMAnalyser.toggle('license')" title="Show / hide license text">License: MIT</a> |
     <a href="https://sr.ht/~carstengrohmann/OOMAnalyser/" title="Source code on Sourcehut">Source Code on Sourcehut</a>
 </div>
 
 <div class="license__text js-text--display-none" id="license">
     <p>
-        Copyright (c) 2017-2022 Carsten Grohmann mail &lt;add at here&gt; carstengrohmann.de
+        Copyright (c) 2017-2023 Carsten Grohmann mail &lt;add at here&gt; carstengrohmann.de
     </p>
     <p>
         Permission is hereby granted, free of charge, to any person obtaining a copy of
diff --git a/OOMAnalyser.py b/OOMAnalyser.py
index 888518d..f2d6809 100644
--- a/OOMAnalyser.py
+++ b/OOMAnalyser.py
@@ -2,7 +2,7 @@
 #
 # Linux OOMAnalyser
 #
-# Copyright (c) 2017-2022 Carsten Grohmann
+# Copyright (c) 2017-2023 Carsten Grohmann
 # License: MIT (see LICENSE.txt)
 # THIS PROGRAM COMES WITH NO WARRANTY
 import math
diff --git a/README.md b/README.md
index cd3f7dd..e91cf81 100644
--- a/README.md
+++ b/README.md
@@ -24,12 +24,12 @@ Both can be stored locally to use OOMAnalyser without an Internet connection.
 
 ### Installation steps
 
- 1. Open [https://www.carstengrohmann.de/oom/](https://www.carstengrohmann.de/oom/) in a browser 
+ 1. Open [https://www.carstengrohmann.de/oom/](https://www.carstengrohmann.de/oom/) in a browser
  2. Browse down to the paragraph "Local Installation" at the end of the document
  3. Download the HTML file and the JavaScript file to the main directory
  4. Open the file `OOMAnalyser.html` in your favourite browser
 
- 
+
 ## Building OOMAnalyser
 
 ### Requirements
@@ -46,13 +46,13 @@ Both can be stored locally to use OOMAnalyser without an Internet connection.
         # git clone https://git.sr.ht/~carstengrohmann/OOMAnalyser
 
  * Set up the Python virtual environment:
- 
+
         # virtualenv env
         # . env/bin/activate
         # env/bin/pip install -Ur requirements.txt
-        
+
         or
-        
+
         # make venv
 
 ### Build OOMAnalyser
@@ -74,9 +74,9 @@ or
  * Start Python built-in web server:
 
         # python3 -m http.server 8080 --bind 127.0.0.1
-        
+
         or
-        
+
         # make websrv
 
  * Open the URL http://localhost:8080/OOMAnalyser.html in your favorite browser.
@@ -104,7 +104,7 @@ or
 
  5. Push changes into public repositories
 
-        # git push 
+        # git push
         # git push origin --tags
 
  6. Create release packages in zip and tar.gz format
@@ -114,7 +114,7 @@ or
  7. Create release on SourceHut & GitHub
 
  8. Start a new development cycle by setting new version numbers
- 
+
 
 ## Resources
 
@@ -134,7 +134,7 @@ for current open bugs. New bugs can be reported there also.
 
 This project is licensed under the MIT license.
 
-> Copyright (c) 2017-2022 Carsten Grohmann,  mail <add at here> carstengrohmann.de
+> Copyright (c) 2017-2023 Carsten Grohmann,  mail <add at here> carstengrohmann.de
 >
 > Permission is hereby granted, free of charge, to any person obtaining a copy of
 > this software and associated documentation files (the "Software"), to deal in
@@ -155,4 +155,4 @@ This project is licensed under the MIT license.
 > SOFTWARE.
 
 Enjoy!
-Carsten Grohmann
\ No newline at end of file
+Carsten Grohmann
diff --git a/requirements.txt b/requirements.txt
index 5daae17..65b7847 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 # Requirements to setup virtual environment for OOMAnalyser
 #
-# Copyright (c) 2017-2022 Carsten Grohmann
+# Copyright (c) 2017-2023 Carsten Grohmann
 # License: MIT (see LICENSE.txt)
 # THIS PROGRAM COMES WITH NO WARRANTY
 
diff --git a/rollup.config.mjs b/rollup.config.mjs
index b3b2384..ea37789 100644
--- a/rollup.config.mjs
+++ b/rollup.config.mjs
@@ -1,6 +1,6 @@
 // Rollup.js configuration for OOMAnalyser
 //
-// Copyright (c) 2021-2022 Carsten Grohmann
+// Copyright (c) 2021-2023 Carsten Grohmann
 // License: MIT (see LICENSE.txt)
 // THIS PROGRAM COMES WITH NO WARRANTY
 
@@ -11,9 +11,9 @@ export default {
         name: 'OOMAnalyser',
         banner: '// JavaScript for OOMAnalyser\n' +
             '//\n' +
-            '// Copyright (c) 2017-2022 Carsten Grohmann\n' +
+            '// Copyright (c) 2017-2023 Carsten Grohmann\n' +
             '// License: MIT (see LICENSE.txt)\n' +
             '// THIS PROGRAM COMES WITH NO WARRANTY',
         format: 'umd'
     }
-};
\ No newline at end of file
+};
diff --git a/test.py b/test.py
index 8455ffe..a183b30 100755
--- a/test.py
+++ b/test.py
@@ -1,6 +1,6 @@
 # Unit tests for OOMAnalyser
 #
-# Copyright (c) 2021-2022 Carsten Grohmann
+# Copyright (c) 2021-2023 Carsten Grohmann
 # License: MIT (see LICENSE.txt)
 # THIS PROGRAM COMES WITH NO WARRANTY