diff --git a/404.html b/404.html
index 0b15f8b1a..18ee8b9d2 100644
--- a/404.html
+++ b/404.html
@@ -190,7 +190,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/about/index.html b/about/index.html
index d06f0b260..62016d65d 100644
--- a/about/index.html
+++ b/about/index.html
@@ -219,7 +219,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/about/sponsors/index.html b/about/sponsors/index.html
index e307844a7..fed606eda 100644
--- a/about/sponsors/index.html
+++ b/about/sponsors/index.html
@@ -286,7 +286,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/apps-and-tools/index.html b/docs/apps-and-tools/index.html
index b570be6d5..32605487c 100644
--- a/docs/apps-and-tools/index.html
+++ b/docs/apps-and-tools/index.html
@@ -450,7 +450,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/building/index.html b/docs/building/index.html
index eaa07b126..f8cc82057 100644
--- a/docs/building/index.html
+++ b/docs/building/index.html
@@ -444,7 +444,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/cli/index.html b/docs/cli/index.html
index 345aa8ed5..9fc2937cf 100644
--- a/docs/cli/index.html
+++ b/docs/cli/index.html
@@ -598,7 +598,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/contributing/index.html b/docs/contributing/index.html
index 52a9e5e19..5394c9211 100644
--- a/docs/contributing/index.html
+++ b/docs/contributing/index.html
@@ -401,7 +401,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/creating-issues/index.html b/docs/creating-issues/index.html
index 69fc72e65..1f889b576 100644
--- a/docs/creating-issues/index.html
+++ b/docs/creating-issues/index.html
@@ -434,7 +434,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/developer/index.html b/docs/developer/index.html
index da0acfc7f..5efad0e0a 100644
--- a/docs/developer/index.html
+++ b/docs/developer/index.html
@@ -391,7 +391,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/getting-started/index.html b/docs/getting-started/index.html
index 16c8e1849..38a9d9e46 100644
--- a/docs/getting-started/index.html
+++ b/docs/getting-started/index.html
@@ -440,7 +440,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/index.html b/docs/index.html
index 419e24059..d61fdd6a9 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -384,7 +384,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/installation/index.html b/docs/installation/index.html
index 56a67281b..64ed06622 100644
--- a/docs/installation/index.html
+++ b/docs/installation/index.html
@@ -386,14 +386,14 @@ <h3 id="using-the-official-distribution"><a class="direct-link" href="#using-the
 <p>We distribute EPUBCheck as a ZIP archive (<code>.zip</code> file) containing the EPUBCheck binaries and all its dependencies.</p>
 <p>To install EPUBCheck, you need to follow these steps:</p>
 <ol>
-<li>download the <a href="https://github.com/w3c/epubcheck/releases/download/v4.2.6/epubcheck-4.2.6.zip">latest version of EPUBCheck</a></li>
+<li>download the <a href="https://github.com/w3c/epubcheck/releases/download/v5.0.0/epubcheck-5.0.0.zip">latest version of EPUBCheck</a></li>
 <li>unzip the downloaded ZIP file</li>
 </ol>
 <aside role="note"><p>You can move the unpacked archive content wherever you want in your file system.
 But please be careful to always keep together all the files, especially the <code>epubcheck.jar</code> file (the EPUBCheck binaries) and the <code>lib/</code> directory (the dependencies binaries).</p>
 </aside>
 <aside role="note"class="quicktip"><p>On macOS and Linux, you can use the following command to directly download and unzip the latest version of EPUBCheck:</p>
-<pre class="language-shell-session"><code class="language-shell-session"><span class="token output">curl -SL https://github.com/w3c/epubcheck/releases/download/v4.2.6/epubcheck-4.2.6.zip | tar -xf -</code></pre>
+<pre class="language-shell-session"><code class="language-shell-session"><span class="token output">curl -SL https://github.com/w3c/epubcheck/releases/download/v5.0.0/epubcheck-5.0.0.zip | tar -xf -</code></pre>
 </aside>
 <p>To run EPUBCheck and verify that your installation is functional, go to the unpacked directory  and run the following command:</p>
 <pre class="language-shell-session"><code class="language-shell-session"><span class="token output">java -jar epubcheck.jar --version</code></pre>
@@ -481,7 +481,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/issue-tracker/index.html b/docs/issue-tracker/index.html
index a15f83943..e03cb1088 100644
--- a/docs/issue-tracker/index.html
+++ b/docs/issue-tracker/index.html
@@ -409,7 +409,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/java-library/index.html b/docs/java-library/index.html
index 45f4c4ccb..621d92f23 100644
--- a/docs/java-library/index.html
+++ b/docs/java-library/index.html
@@ -438,7 +438,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/messages/index.html b/docs/messages/index.html
index 1901167a8..6b29e7aad 100644
--- a/docs/messages/index.html
+++ b/docs/messages/index.html
@@ -1884,7 +1884,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
@@ -1911,4 +1911,4 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 
 
 	</body>
-</html>
+</html>
\ No newline at end of file
diff --git a/docs/releasing/index.html b/docs/releasing/index.html
index 657e9dbfd..901627e84 100644
--- a/docs/releasing/index.html
+++ b/docs/releasing/index.html
@@ -399,7 +399,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/report/index.html b/docs/report/index.html
index c00583c11..f0e632245 100644
--- a/docs/report/index.html
+++ b/docs/report/index.html
@@ -455,7 +455,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/running/index.html b/docs/running/index.html
index b418987c6..0c187e398 100644
--- a/docs/running/index.html
+++ b/docs/running/index.html
@@ -468,7 +468,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/source-code/index.html b/docs/source-code/index.html
index d32c26ec6..fc68c7179 100644
--- a/docs/source-code/index.html
+++ b/docs/source-code/index.html
@@ -399,7 +399,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/support/index.html b/docs/support/index.html
index 78102b60d..8873a146a 100644
--- a/docs/support/index.html
+++ b/docs/support/index.html
@@ -398,7 +398,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/test-suite/index.html b/docs/test-suite/index.html
index d68905d96..e6e50a553 100644
--- a/docs/test-suite/index.html
+++ b/docs/test-suite/index.html
@@ -815,7 +815,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/translating/index.html b/docs/translating/index.html
index d5b7c5113..fb17c0aff 100644
--- a/docs/translating/index.html
+++ b/docs/translating/index.html
@@ -529,7 +529,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/troubleshooting/index.html b/docs/troubleshooting/index.html
index 4264cdd89..9646b0dae 100644
--- a/docs/troubleshooting/index.html
+++ b/docs/troubleshooting/index.html
@@ -414,7 +414,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/user/index.html b/docs/user/index.html
index 6d921a7bd..cefce422f 100644
--- a/docs/user/index.html
+++ b/docs/user/index.html
@@ -398,7 +398,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/writing-code/index.html b/docs/writing-code/index.html
index 91dbf4f0e..d7b23662b 100644
--- a/docs/writing-code/index.html
+++ b/docs/writing-code/index.html
@@ -418,7 +418,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/docs/writing-tests/index.html b/docs/writing-tests/index.html
index ff7646518..c3bacaf51 100644
--- a/docs/writing-tests/index.html
+++ b/docs/writing-tests/index.html
@@ -502,7 +502,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/download-latest/index.html b/download-latest/index.html
index fb2c43b48..440fc825f 100644
--- a/download-latest/index.html
+++ b/download-latest/index.html
@@ -179,7 +179,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/index.html b/index.html
index 67ba78a1a..3cf1ad42b 100644
--- a/index.html
+++ b/index.html
@@ -142,7 +142,7 @@ <h1 class="intro__heading">EPUBCheck</h1>
     <p>The conformance checker for EPUB publications</p>
   </div>
   <div class="intro__download">
-    <a class="button" href="https://github.com/w3c/epubcheck/releases/download/v4.2.6/epubcheck-4.2.6.zip" >Download</a><br/>
+    <a class="button" href="https://github.com/w3c/epubcheck/releases/download/v5.0.0/epubcheck-5.0.0.zip" >Download</a><br/>
   </div>
 </div>
 	<div class="home-invite | flow wrapper padded">
@@ -248,7 +248,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®
 			
 			
 			
diff --git a/releases/index.html b/releases/index.html
index 00f037a12..446b403c8 100644
--- a/releases/index.html
+++ b/releases/index.html
@@ -454,7 +454,7 @@ <h3 class="footer-nav__heading">Find Us On</h3>
 			<p>
 			
 			
-				© 2021 W3C ®
+				© 2023 W3C ®