From: Vladimír Vondruš <mosra@centrum.cz>
Date: Wed, 28 Jun 2023 13:58:23 +0000 (+0200)
Subject: Update copyright year.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~cjwatson/git?a=commitdiff_plain;h=3e0650a0f6c081e88add26a3f94075e4ff18e4de;p=blog.git

Update copyright year.

Six months in, I could have waited until 2024, heh.
---

diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 8a80fabf..b41f682a 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -37,7 +37,7 @@ Code contribution
         /*
             This file is part of m.css.
 
-            Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+            Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
                       Vladimír Vondruš <mosra@centrum.cz>
             Copyright © YEAR YOUR_NAME <your@mail.com>
 
diff --git a/css/m-components.css b/css/m-components.css
index 6cacd41c..e90e1cd9 100644
--- a/css/m-components.css
+++ b/css/m-components.css
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-dark+documentation.compiled.css b/css/m-dark+documentation.compiled.css
index fb3363dd..7d091c2f 100644
--- a/css/m-dark+documentation.compiled.css
+++ b/css/m-dark+documentation.compiled.css
@@ -3,7 +3,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-dark.compiled.css b/css/m-dark.compiled.css
index 56cab7be..c59cf409 100644
--- a/css/m-dark.compiled.css
+++ b/css/m-dark.compiled.css
@@ -3,7 +3,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-dark.css b/css/m-dark.css
index 04222584..6bdbb911 100644
--- a/css/m-dark.css
+++ b/css/m-dark.css
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-dark.documentation.compiled.css b/css/m-dark.documentation.compiled.css
index 073c5f35..124da55d 100644
--- a/css/m-dark.documentation.compiled.css
+++ b/css/m-dark.documentation.compiled.css
@@ -3,7 +3,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-debug.css b/css/m-debug.css
index 166419b5..a4ef236c 100644
--- a/css/m-debug.css
+++ b/css/m-debug.css
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-documentation.css b/css/m-documentation.css
index 87b76417..3b761e8d 100644
--- a/css/m-documentation.css
+++ b/css/m-documentation.css
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-grid.css b/css/m-grid.css
index 251109c1..f05221de 100644
--- a/css/m-grid.css
+++ b/css/m-grid.css
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-layout.css b/css/m-layout.css
index feab6bb0..a55c1850 100644
--- a/css/m-layout.css
+++ b/css/m-layout.css
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-light+documentation.compiled.css b/css/m-light+documentation.compiled.css
index c5efd768..e0759f22 100644
--- a/css/m-light+documentation.compiled.css
+++ b/css/m-light+documentation.compiled.css
@@ -3,7 +3,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-light.compiled.css b/css/m-light.compiled.css
index 9beb112b..56cef576 100644
--- a/css/m-light.compiled.css
+++ b/css/m-light.compiled.css
@@ -3,7 +3,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-light.css b/css/m-light.css
index 0c873a46..e02bba0b 100644
--- a/css/m-light.css
+++ b/css/m-light.css
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-light.documentation.compiled.css b/css/m-light.documentation.compiled.css
index a50264aa..1ca88348 100644
--- a/css/m-light.documentation.compiled.css
+++ b/css/m-light.documentation.compiled.css
@@ -3,7 +3,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-theme-dark.css b/css/m-theme-dark.css
index 161f7e25..770628ea 100644
--- a/css/m-theme-dark.css
+++ b/css/m-theme-dark.css
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/m-theme-light.css b/css/m-theme-light.css
index 9fcee646..7920e17d 100644
--- a/css/m-theme-light.css
+++ b/css/m-theme-light.css
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/postprocess.py b/css/postprocess.py
index c258087e..77c4b5e2 100755
--- a/css/postprocess.py
+++ b/css/postprocess.py
@@ -3,7 +3,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
@@ -142,7 +142,7 @@ def postprocess(files, process_imports, out_file):
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/pygments-console.py b/css/pygments-console.py
index e0bee34b..5d7d5c38 100644
--- a/css/pygments-console.py
+++ b/css/pygments-console.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/css/pygments-dark.py b/css/pygments-dark.py
index 7ef3289f..08c918be 100644
--- a/css/pygments-dark.py
+++ b/css/pygments-dark.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/admire/math.rst b/doc/admire/math.rst
index ed6244af..03b30054 100644
--- a/doc/admire/math.rst
+++ b/doc/admire/math.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css.rst b/doc/css.rst
index a446bcf1..f10ce2a1 100644
--- a/doc/css.rst
+++ b/doc/css.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/components-test.rst b/doc/css/components-test.rst
index acf41828..05402df1 100644
--- a/doc/css/components-test.rst
+++ b/doc/css/components-test.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/components.rst b/doc/css/components.rst
index 7d7be75d..785f3eee 100644
--- a/doc/css/components.rst
+++ b/doc/css/components.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/grid-test.rst b/doc/css/grid-test.rst
index a90bb2f3..e945ea69 100644
--- a/doc/css/grid-test.rst
+++ b/doc/css/grid-test.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/grid.rst b/doc/css/grid.rst
index 266c82eb..cee94aa0 100644
--- a/doc/css/grid.rst
+++ b/doc/css/grid.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/page-layout-test-navbar-brand-logo.html b/doc/css/page-layout-test-navbar-brand-logo.html
index 743551f9..2066d6be 100644
--- a/doc/css/page-layout-test-navbar-brand-logo.html
+++ b/doc/css/page-layout-test-navbar-brand-logo.html
@@ -1,7 +1,7 @@
 <!--
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/page-layout-test-navbar-subsite.html b/doc/css/page-layout-test-navbar-subsite.html
index 03391234..913501a3 100644
--- a/doc/css/page-layout-test-navbar-subsite.html
+++ b/doc/css/page-layout-test-navbar-subsite.html
@@ -1,7 +1,7 @@
 <!--
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/page-layout-test.rst b/doc/css/page-layout-test.rst
index a66b3798..d9960899 100644
--- a/doc/css/page-layout-test.rst
+++ b/doc/css/page-layout-test.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/page-layout.rst b/doc/css/page-layout.rst
index bad598d1..be34021e 100644
--- a/doc/css/page-layout.rst
+++ b/doc/css/page-layout.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/themes.rst b/doc/css/themes.rst
index 77bbe8fb..639786e2 100644
--- a/doc/css/themes.rst
+++ b/doc/css/themes.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/typography-test.rst b/doc/css/typography-test.rst
index dd629244..33fd28bb 100644
--- a/doc/css/typography-test.rst
+++ b/doc/css/typography-test.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/css/typography.rst b/doc/css/typography.rst
index 7607b9c3..fcbe5a2f 100644
--- a/doc/css/typography.rst
+++ b/doc/css/typography.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/documentation.rst b/doc/documentation.rst
index 5c9a66d7..506a1c6c 100644
--- a/doc/documentation.rst
+++ b/doc/documentation.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/documentation/doxygen-test.rst b/doc/documentation/doxygen-test.rst
index f3c6bc77..7ca4c80d 100644
--- a/doc/documentation/doxygen-test.rst
+++ b/doc/documentation/doxygen-test.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/documentation/doxygen.rst b/doc/documentation/doxygen.rst
index be7f858f..04eff87b 100644
--- a/doc/documentation/doxygen.rst
+++ b/doc/documentation/doxygen.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/documentation/python.rst b/doc/documentation/python.rst
index 119dfbcd..b2133de2 100644
--- a/doc/documentation/python.rst
+++ b/doc/documentation/python.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/examples/article-hide-summary.rst b/doc/examples/article-hide-summary.rst
index 266a7e67..8c1eba1d 100644
--- a/doc/examples/article-hide-summary.rst
+++ b/doc/examples/article-hide-summary.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/examples/article.rst b/doc/examples/article.rst
index f6d0f5ca..7cea951c 100644
--- a/doc/examples/article.rst
+++ b/doc/examples/article.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/examples/jumbo-article-hide-summary.rst b/doc/examples/jumbo-article-hide-summary.rst
index 94d7a707..ed5e8b53 100644
--- a/doc/examples/jumbo-article-hide-summary.rst
+++ b/doc/examples/jumbo-article-hide-summary.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/examples/jumbo-article.rst b/doc/examples/jumbo-article.rst
index 4188fd17..04094b29 100644
--- a/doc/examples/jumbo-article.rst
+++ b/doc/examples/jumbo-article.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/index.rst b/doc/index.rst
index 367d1ab7..3719ea5b 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins.rst b/doc/plugins.rst
index a61c1de1..52280d4d 100644
--- a/doc/plugins.rst
+++ b/doc/plugins.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/components-test.rst b/doc/plugins/components-test.rst
index e84892f8..656b6c4b 100644
--- a/doc/plugins/components-test.rst
+++ b/doc/plugins/components-test.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/components.rst b/doc/plugins/components.rst
index 54156231..3142a7af 100644
--- a/doc/plugins/components.rst
+++ b/doc/plugins/components.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/htmlsanity.rst b/doc/plugins/htmlsanity.rst
index 62be561c..fe03fabb 100644
--- a/doc/plugins/htmlsanity.rst
+++ b/doc/plugins/htmlsanity.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/images-test.rst b/doc/plugins/images-test.rst
index fc6bbd8f..e7416933 100644
--- a/doc/plugins/images-test.rst
+++ b/doc/plugins/images-test.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/images.rst b/doc/plugins/images.rst
index 026c2ee2..2f277c52 100644
--- a/doc/plugins/images.rst
+++ b/doc/plugins/images.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/links.rst b/doc/plugins/links.rst
index 664001e7..91014ccd 100644
--- a/doc/plugins/links.rst
+++ b/doc/plugins/links.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/math-and-code-test.rst b/doc/plugins/math-and-code-test.rst
index 163000f4..5118cb9c 100644
--- a/doc/plugins/math-and-code-test.rst
+++ b/doc/plugins/math-and-code-test.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/math-and-code.rst b/doc/plugins/math-and-code.rst
index f6bb5d3c..e5aec769 100644
--- a/doc/plugins/math-and-code.rst
+++ b/doc/plugins/math-and-code.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/metadata.rst b/doc/plugins/metadata.rst
index 76a75927..e89e0a24 100644
--- a/doc/plugins/metadata.rst
+++ b/doc/plugins/metadata.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/plots-and-graphs-test.rst b/doc/plugins/plots-and-graphs-test.rst
index aa97b1c9..b1b8fd3d 100644
--- a/doc/plugins/plots-and-graphs-test.rst
+++ b/doc/plugins/plots-and-graphs-test.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/plots-and-graphs.rst b/doc/plugins/plots-and-graphs.rst
index 26deba0c..8f1ab4cd 100644
--- a/doc/plugins/plots-and-graphs.rst
+++ b/doc/plugins/plots-and-graphs.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/plugins/sphinx.rst b/doc/plugins/sphinx.rst
index 317ac7b8..89f42fcb 100644
--- a/doc/plugins/sphinx.rst
+++ b/doc/plugins/sphinx.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/themes.rst b/doc/themes.rst
index 486cc24b..793d268e 100644
--- a/doc/themes.rst
+++ b/doc/themes.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/themes/pelican.rst b/doc/themes/pelican.rst
index 0d3b550a..ffcb4dd1 100644
--- a/doc/themes/pelican.rst
+++ b/doc/themes/pelican.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/themes/writing-rst-content.rst b/doc/themes/writing-rst-content.rst
index b98ff029..5a2bf4bd 100644
--- a/doc/themes/writing-rst-content.rst
+++ b/doc/themes/writing-rst-content.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/doc/why.rst b/doc/why.rst
index 8e8abdf2..1d722dc1 100644
--- a/doc/why.rst
+++ b/doc/why.rst
@@ -1,7 +1,7 @@
 ..
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/__init__.py b/documentation/__init__.py
index f060a41b..b7897883 100644
--- a/documentation/__init__.py
+++ b/documentation/__init__.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/_search.py b/documentation/_search.py
index 5e09421d..0c5650fd 100644
--- a/documentation/_search.py
+++ b/documentation/_search.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/doxygen.py b/documentation/doxygen.py
index 2d5a6f9a..f9d644cf 100755
--- a/documentation/doxygen.py
+++ b/documentation/doxygen.py
@@ -3,7 +3,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #   Copyright © 2020 Yuri Edward <nicolas1.fraysse@epitech.eu>
 #
diff --git a/documentation/python.py b/documentation/python.py
index 8aa3afa5..8b056c5e 100755
--- a/documentation/python.py
+++ b/documentation/python.py
@@ -3,7 +3,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #   Copyright © 2020 Sergei Izmailov <sergei.a.izmailov@gmail.com>
 #
diff --git a/documentation/search.js b/documentation/search.js
index 3c8fd244..1fb71e1f 100644
--- a/documentation/search.js
+++ b/documentation/search.js
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test/__init__.py b/documentation/test/__init__.py
index f060a41b..b7897883 100644
--- a/documentation/test/__init__.py
+++ b/documentation/test/__init__.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test/_search_test_metadata.py b/documentation/test/_search_test_metadata.py
index ecd71795..6ade0f30 100644
--- a/documentation/test/_search_test_metadata.py
+++ b/documentation/test/_search_test_metadata.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test/populate-js-test-data.py b/documentation/test/populate-js-test-data.py
index 40fa4d12..7aebc51c 100755
--- a/documentation/test/populate-js-test-data.py
+++ b/documentation/test/populate-js-test-data.py
@@ -3,7 +3,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test/test-search.js b/documentation/test/test-search.js
index 86e9a5ea..a8844989 100644
--- a/documentation/test/test-search.js
+++ b/documentation/test/test-search.js
@@ -1,7 +1,7 @@
 /*
     This file is part of m.css.
 
-    Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+    Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
               Vladimír Vondruš <mosra@centrum.cz>
 
     Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test/test_search.py b/documentation/test/test_search.py
index 98e0c5f1..14afa6b8 100755
--- a/documentation/test/test_search.py
+++ b/documentation/test/test_search.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/__init__.py b/documentation/test_doxygen/__init__.py
index 0a62e095..c289bcde 100644
--- a/documentation/test_doxygen/__init__.py
+++ b/documentation/test_doxygen/__init__.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_compound.py b/documentation/test_doxygen/test_compound.py
index ab362249..36960b94 100644
--- a/documentation/test_doxygen/test_compound.py
+++ b/documentation/test_doxygen/test_compound.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_contents.py b/documentation/test_doxygen/test_contents.py
index 5ac350f3..58300d90 100644
--- a/documentation/test_doxygen/test_contents.py
+++ b/documentation/test_doxygen/test_contents.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_cpp.py b/documentation/test_doxygen/test_cpp.py
index 2802f539..83e77f7b 100644
--- a/documentation/test_doxygen/test_cpp.py
+++ b/documentation/test_doxygen/test_cpp.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_doxyfile.py b/documentation/test_doxygen/test_doxyfile.py
index 070f4f87..101b9e48 100644
--- a/documentation/test_doxygen/test_doxyfile.py
+++ b/documentation/test_doxygen/test_doxyfile.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_example.py b/documentation/test_doxygen/test_example.py
index c6bd279c..757fcc3b 100644
--- a/documentation/test_doxygen/test_example.py
+++ b/documentation/test_doxygen/test_example.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_ignored_xmls.py b/documentation/test_doxygen/test_ignored_xmls.py
index 3244f1cb..4a7d4cec 100644
--- a/documentation/test_doxygen/test_ignored_xmls.py
+++ b/documentation/test_doxygen/test_ignored_xmls.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_layout.py b/documentation/test_doxygen/test_layout.py
index 8ef20948..9338605b 100644
--- a/documentation/test_doxygen/test_layout.py
+++ b/documentation/test_doxygen/test_layout.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_page.py b/documentation/test_doxygen/test_page.py
index 23198011..0d48fb95 100644
--- a/documentation/test_doxygen/test_page.py
+++ b/documentation/test_doxygen/test_page.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_search.py b/documentation/test_doxygen/test_search.py
index d682fce7..7807ab2e 100755
--- a/documentation/test_doxygen/test_search.py
+++ b/documentation/test_doxygen/test_search.py
@@ -3,7 +3,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_undocumented.py b/documentation/test_doxygen/test_undocumented.py
index 51266853..a35a1be4 100644
--- a/documentation/test_doxygen/test_undocumented.py
+++ b/documentation/test_doxygen/test_undocumented.py
@@ -3,7 +3,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_doxygen/test_utility.py b/documentation/test_doxygen/test_utility.py
index 5e0aa0f8..2c1d201c 100644
--- a/documentation/test_doxygen/test_utility.py
+++ b/documentation/test_doxygen/test_utility.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_python/CMakeLists.txt b/documentation/test_python/CMakeLists.txt
index ef3dc071..fabb503b 100644
--- a/documentation/test_python/CMakeLists.txt
+++ b/documentation/test_python/CMakeLists.txt
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_python/__init__.py b/documentation/test_python/__init__.py
index 9dd2f8a8..8627742a 100644
--- a/documentation/test_python/__init__.py
+++ b/documentation/test_python/__init__.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_python/page_plugins/plugins/fancyline.py b/documentation/test_python/page_plugins/plugins/fancyline.py
index cd8202fd..63eda7eb 100644
--- a/documentation/test_python/page_plugins/plugins/fancyline.py
+++ b/documentation/test_python/page_plugins/plugins/fancyline.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_python/test_content.py b/documentation/test_python/test_content.py
index f0ff7dbf..ed83a2cb 100644
--- a/documentation/test_python/test_content.py
+++ b/documentation/test_python/test_content.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_python/test_inspect.py b/documentation/test_python/test_inspect.py
index ded9c457..9f616982 100644
--- a/documentation/test_python/test_inspect.py
+++ b/documentation/test_python/test_inspect.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_python/test_layout.py b/documentation/test_python/test_layout.py
index f7402167..afec2013 100644
--- a/documentation/test_python/test_layout.py
+++ b/documentation/test_python/test_layout.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_python/test_link_formatting.py b/documentation/test_python/test_link_formatting.py
index 58441db6..e7fc8382 100644
--- a/documentation/test_python/test_link_formatting.py
+++ b/documentation/test_python/test_link_formatting.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_python/test_page.py b/documentation/test_python/test_page.py
index fa78a053..bc8333c9 100644
--- a/documentation/test_python/test_page.py
+++ b/documentation/test_python/test_page.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/documentation/test_python/test_pybind.py b/documentation/test_python/test_pybind.py
index 3865d97c..fce54449 100644
--- a/documentation/test_python/test_pybind.py
+++ b/documentation/test_python/test_pybind.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #   Copyright © 2020 Sergei Izmailov <sergei.a.izmailov@gmail.com>
 #
diff --git a/documentation/test_python/test_search.py b/documentation/test_python/test_search.py
index a08d539e..55e78801 100644
--- a/documentation/test_python/test_search.py
+++ b/documentation/test_python/test_search.py
@@ -3,7 +3,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/pelican-theme/test/__init__.py b/pelican-theme/test/__init__.py
index e0668aab..553b8ecc 100644
--- a/pelican-theme/test/__init__.py
+++ b/pelican-theme/test/__init__.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/pelican-theme/test/test_blog.py b/pelican-theme/test/test_blog.py
index 90cf00fc..6c5dc6d9 100644
--- a/pelican-theme/test/test_blog.py
+++ b/pelican-theme/test/test_blog.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/pelican-theme/test/test_layout.py b/pelican-theme/test/test_layout.py
index 3278ea2f..cb3148e1 100644
--- a/pelican-theme/test/test_layout.py
+++ b/pelican-theme/test/test_layout.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/pelican-theme/test/test_page.py b/pelican-theme/test/test_page.py
index b99682ec..91a09767 100644
--- a/pelican-theme/test/test_page.py
+++ b/pelican-theme/test/test_page.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/ansilexer.py b/plugins/ansilexer.py
index c78ea870..716dd49e 100644
--- a/plugins/ansilexer.py
+++ b/plugins/ansilexer.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #   Copyright © 2020 Blair Conrad <blair@blairconrad.com>
 #
diff --git a/plugins/dot2svg.py b/plugins/dot2svg.py
index d27e3f4e..24b1643b 100644
--- a/plugins/dot2svg.py
+++ b/plugins/dot2svg.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/latex2svgextra.py b/plugins/latex2svgextra.py
index 1a84b258..95f40011 100644
--- a/plugins/latex2svgextra.py
+++ b/plugins/latex2svgextra.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/__init__.py b/plugins/m/__init__.py
index 035a9c98..0abe58fa 100644
--- a/plugins/m/__init__.py
+++ b/plugins/m/__init__.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/abbr.py b/plugins/m/abbr.py
index 13ad81d3..07d891d5 100644
--- a/plugins/m/abbr.py
+++ b/plugins/m/abbr.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/alias.py b/plugins/m/alias.py
index 64f9db56..3614f3dd 100644
--- a/plugins/m/alias.py
+++ b/plugins/m/alias.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Loosely based on https://github.com/Nitron/pelican-alias,
diff --git a/plugins/m/code.py b/plugins/m/code.py
index 08fd6acb..31ddb879 100644
--- a/plugins/m/code.py
+++ b/plugins/m/code.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/components.py b/plugins/m/components.py
index 1344e1eb..1627ba7f 100644
--- a/plugins/m/components.py
+++ b/plugins/m/components.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/dot.py b/plugins/m/dot.py
index cfd2268a..c66102c6 100644
--- a/plugins/m/dot.py
+++ b/plugins/m/dot.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/dox.py b/plugins/m/dox.py
index 456d0d11..8bfab04d 100644
--- a/plugins/m/dox.py
+++ b/plugins/m/dox.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/filesize.py b/plugins/m/filesize.py
index d6c0b3db..484dd06b 100644
--- a/plugins/m/filesize.py
+++ b/plugins/m/filesize.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/gh.py b/plugins/m/gh.py
index d353713d..c871c61c 100644
--- a/plugins/m/gh.py
+++ b/plugins/m/gh.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/gl.py b/plugins/m/gl.py
index dd40d2da..9820d84f 100644
--- a/plugins/m/gl.py
+++ b/plugins/m/gl.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/htmlsanity.py b/plugins/m/htmlsanity.py
index 187ac1b6..2f68d84b 100644
--- a/plugins/m/htmlsanity.py
+++ b/plugins/m/htmlsanity.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/images.py b/plugins/m/images.py
index 416a12ea..2296e8f4 100644
--- a/plugins/m/images.py
+++ b/plugins/m/images.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/link.py b/plugins/m/link.py
index a64e02f8..0d254a74 100644
--- a/plugins/m/link.py
+++ b/plugins/m/link.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/math.py b/plugins/m/math.py
index 5c269176..12fa108a 100644
--- a/plugins/m/math.py
+++ b/plugins/m/math.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/metadata.py b/plugins/m/metadata.py
index 247488ea..7f78e1ca 100644
--- a/plugins/m/metadata.py
+++ b/plugins/m/metadata.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/plots.py b/plugins/m/plots.py
index 4890c3b5..dc31148f 100644
--- a/plugins/m/plots.py
+++ b/plugins/m/plots.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/qr.py b/plugins/m/qr.py
index 7e677528..50e4a754 100644
--- a/plugins/m/qr.py
+++ b/plugins/m/qr.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/sphinx.py b/plugins/m/sphinx.py
index d0fad277..6ec08c13 100755
--- a/plugins/m/sphinx.py
+++ b/plugins/m/sphinx.py
@@ -3,7 +3,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/__init__.py b/plugins/m/test/__init__.py
index 351af2be..59448d4d 100644
--- a/plugins/m/test/__init__.py
+++ b/plugins/m/test/__init__.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_abbr.py b/plugins/m/test/test_abbr.py
index a247c06b..45faddfa 100644
--- a/plugins/m/test/test_abbr.py
+++ b/plugins/m/test/test_abbr.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_alias.py b/plugins/m/test/test_alias.py
index ebc4e8da..af0848d6 100644
--- a/plugins/m/test/test_alias.py
+++ b/plugins/m/test/test_alias.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_code.py b/plugins/m/test/test_code.py
index bebe15d6..530941db 100644
--- a/plugins/m/test/test_code.py
+++ b/plugins/m/test/test_code.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_components.py b/plugins/m/test/test_components.py
index 138f0e62..0cf8de8d 100644
--- a/plugins/m/test/test_components.py
+++ b/plugins/m/test/test_components.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_dot.py b/plugins/m/test/test_dot.py
index b39da7cf..2acfd727 100644
--- a/plugins/m/test/test_dot.py
+++ b/plugins/m/test/test_dot.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_dox.py b/plugins/m/test/test_dox.py
index b1ae534c..06dd0d7d 100644
--- a/plugins/m/test/test_dox.py
+++ b/plugins/m/test/test_dox.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_filesize.py b/plugins/m/test/test_filesize.py
index 001aaa38..07ef5087 100644
--- a/plugins/m/test/test_filesize.py
+++ b/plugins/m/test/test_filesize.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_gh.py b/plugins/m/test/test_gh.py
index 091ce3a3..91ecbb49 100644
--- a/plugins/m/test/test_gh.py
+++ b/plugins/m/test/test_gh.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_gl.py b/plugins/m/test/test_gl.py
index 377c1878..e42119c8 100644
--- a/plugins/m/test/test_gl.py
+++ b/plugins/m/test/test_gl.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_htmlsanity.py b/plugins/m/test/test_htmlsanity.py
index 09a95292..b771a84f 100644
--- a/plugins/m/test/test_htmlsanity.py
+++ b/plugins/m/test/test_htmlsanity.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_images.py b/plugins/m/test/test_images.py
index 53893429..e4bad770 100644
--- a/plugins/m/test/test_images.py
+++ b/plugins/m/test/test_images.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_link.py b/plugins/m/test/test_link.py
index 00c274e3..0a6e771a 100644
--- a/plugins/m/test/test_link.py
+++ b/plugins/m/test/test_link.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_math.py b/plugins/m/test/test_math.py
index e571e6af..aef77771 100644
--- a/plugins/m/test/test_math.py
+++ b/plugins/m/test/test_math.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_metadata.py b/plugins/m/test/test_metadata.py
index 4bf305fb..760c1b5b 100644
--- a/plugins/m/test/test_metadata.py
+++ b/plugins/m/test/test_metadata.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_plots.py b/plugins/m/test/test_plots.py
index e6adae57..da746d91 100644
--- a/plugins/m/test/test_plots.py
+++ b/plugins/m/test/test_plots.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_qr.py b/plugins/m/test/test_qr.py
index c177c30a..bbce78af 100644
--- a/plugins/m/test/test_qr.py
+++ b/plugins/m/test/test_qr.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_sphinx.py b/plugins/m/test/test_sphinx.py
index fc3cb18b..cca89dbd 100644
--- a/plugins/m/test/test_sphinx.py
+++ b/plugins/m/test/test_sphinx.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/test/test_vk.py b/plugins/m/test/test_vk.py
index e0affbd6..6dce8bd1 100644
--- a/plugins/m/test/test_vk.py
+++ b/plugins/m/test/test_vk.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/plugins/m/vk.py b/plugins/m/vk.py
index 4b5eec63..dbf0d75a 100644
--- a/plugins/m/vk.py
+++ b/plugins/m/vk.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
diff --git a/site/pelicanconf.py b/site/pelicanconf.py
index 71e7b148..bdda8f30 100644
--- a/site/pelicanconf.py
+++ b/site/pelicanconf.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a
@@ -132,7 +132,7 @@ M_LINKS_FOOTER4 = [('Plugins', 'plugins/'),
                    ('Sphinx', 'plugins/sphinx/')]
 
 M_FINE_PRINT = """
-| m.css. Copyright © `Vladimír Vondruš <http://mosra.cz>`_, 2017--2022. Site
+| m.css. Copyright © `Vladimír Vondruš <http://mosra.cz>`_, 2017--2023. Site
   powered by `Pelican <https://getpelican.com>`_ and m.css.
 | Code and content is `available on GitHub under MIT <https://github.com/mosra/m.css>`_.
   Contact the author via `Gitter <https://gitter.im/mosra/m.css>`_,
diff --git a/site/publishconf.py b/site/publishconf.py
index 838a0a2a..31f710be 100644
--- a/site/publishconf.py
+++ b/site/publishconf.py
@@ -1,7 +1,7 @@
 #
 #   This file is part of m.css.
 #
-#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022
+#   Copyright © 2017, 2018, 2019, 2020, 2021, 2022, 2023
 #             Vladimír Vondruš <mosra@centrum.cz>
 #
 #   Permission is hereby granted, free of charge, to any person obtaining a