This is an automated email from the ASF dual-hosted git repository.

adelbene pushed a commit to branch asf-site
in repository https://gitbox.apache.org/repos/asf/wicket-site.git


The following commit(s) were added to refs/heads/asf-site by this push:
     new 45539efa added page for 10.x
45539efa is described below

commit 45539efa005ac4e82259592fc3c06cd2df10e993
Author: Andrea Del Bene <[email protected]>
AuthorDate: Sat Jun 17 22:11:38 2023 +0200

    added page for 10.x
---
 _config.yml                    |   1 +
 content/atom.xml               |   2 +-
 content/start/download.html    |   9 ++
 content/start/wicket-10.x.html | 294 +++++++++++++++++++++++++++++++++++++++++
 start/download.md              |   9 ++
 start/wicket-10.x.md           | 158 ++++++++++++++++++++++
 6 files changed, 472 insertions(+), 1 deletion(-)

diff --git a/_config.yml b/_config.yml
index f1f16169..c7c7dba9 100644
--- a/_config.yml
+++ b/_config.yml
@@ -17,6 +17,7 @@ sass:
 wicket:
   version:    9.14.0
   version_90: 9.14.0
+  version_10: 10.0.0-M1
   version_80: 8.15.0
   version_70: 7.18.0
   version_60: 6.30.0
diff --git a/content/atom.xml b/content/atom.xml
index 802a8f75..a71d8f07 100644
--- a/content/atom.xml
+++ b/content/atom.xml
@@ -3,7 +3,7 @@
     <title>Apache Wicket</title>
     <link href="http://wicket.apache.org/atom.xml"; rel="self"/>
     <link href="http://wicket.apache.org/"/>
-    <updated>2023-06-17T19:46:36+00:00</updated>
+    <updated>2023-06-17T20:11:06+00:00</updated>
     <id>http://wicket.apache.org/</id>
     <author>
         <name>Apache Wicket</name>
diff --git a/content/start/download.html b/content/start/download.html
index b50f2cd2..a3445a77 100644
--- a/content/start/download.html
+++ b/content/start/download.html
@@ -123,6 +123,10 @@
             <div class="l-button-table">
     <div class="l-two-third">
         <div class="button-bar">
+               <a class="button" href="wicket-10.x.html">
+                       <i class="fa fa-cloud-download"></i><br />
+                       Apache Wicket 10.x
+               </a>
                <a class="button" href="wicket-9.x.html">
                        <i class="fa fa-cloud-download"></i><br />
                        Apache Wicket 9.x
@@ -160,6 +164,11 @@
                <th style="width:30%">Latest release</th>
                <th style="width:40%">Status</th>
        </tr>
+       <tr>
+               <td><a href="wicket-10.x.html">Wicket 10.x</a></td>
+               <td>10.0.0-M1</td>
+               <td>in development, not for production</td>
+       </tr>
        <tr>
                <td><a href="wicket-9.x.html">Wicket 9.x</a></td>
                <td>9.14.0</td>
diff --git a/content/start/wicket-10.x.html b/content/start/wicket-10.x.html
new file mode 100644
index 00000000..634c6982
--- /dev/null
+++ b/content/start/wicket-10.x.html
@@ -0,0 +1,294 @@
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
+        <meta charset="utf-8">
+       
+       
+
+        <title>Apache Wicket 10.x | Apache Wicket</title>
+        <meta name="viewport" content="width=device-width, initial-scale=1" />
+
+        <link rel="shortcut icon" href="/favicon.ico" 
type="image/vnd.microsoft.icon" />
+        <link rel="stylesheet" href="/css/style.css" type="text/css" 
media="screen" />
+        <link 
href="//maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" 
rel="stylesheet" />
+
+               <script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
+
+
+    </head>
+    <body class="">
+        <div class="header default">
+    <div class="l-container">
+        
+<nav class="mainmenu">
+    <div class="nav-logo">
+    <a href="/"><img src="/img/logo-apachewicket.svg" alt="Apache Wicket"></a>
+</div>
+
+    <div class="nav-container">
+    
+               
+       
+        
+        
+               <!-- /start/quickstart.html || /start/wicket-10.x -->
+               
+       
+        
+       <a href="/start/quickstart.html" class=" nav-items">Quick Start</a>
+    
+               
+       
+        
+        
+               <!-- /start/download.html || /start/wicket-10.x -->
+               
+       
+        
+       <a href="/start/download.html" class="active nav-items">Download</a>
+    
+               
+       
+        
+        
+               <!-- /learn || /start/wicket-10.x -->
+               
+       
+        
+       <a href="/learn" class=" nav-items">Documentation</a>
+    
+               
+       
+        
+        
+               <!-- /help || /start/wicket-10.x -->
+               
+       
+        
+       <a href="/help" class=" nav-items">Support</a>
+    
+               
+       
+        
+        
+               <!-- /contribute || /start/wicket-10.x -->
+               
+       
+        
+       <a href="/contribute" class=" nav-items">Contribute</a>
+    
+               
+       
+        
+        
+               <!-- /community || /start/wicket-10.x -->
+               
+       
+        
+       <a href="/community" class=" nav-items">Community</a>
+    
+               
+       
+        
+        
+               <!-- /apache || /start/wicket-10.x -->
+               
+       
+        
+       <a href="/apache" class=" nav-items">Apache</a>
+    
+    </div>
+    <div class="nav-container  ">
+        <a href="https://github.com/apache/wicket"; target="_blank"><i 
class="fa fa-github nav-items"></i></a>
+        <a href="https://twitter.com/apache_wicket"; target="_blank"><i 
class="fa fa-twitter nav-items"></i></a>
+        <a href="https://builtwithwicket.tumblr.com"; target="_blank"><i 
class="fa fa-tumblr nav-items"></i></a>
+    </div>    
+</nav>
+        
+    </div>
+</div>
+<main>
+    <div class="l-container">
+        <header class="l-full preamble">
+            <h1>Apache Wicket 10.x</h1>
+            
+            
+            <p>Here you can learn about the status of Wicket 10.x, find links 
to download it, learn how to configure your Maven POM to use Wicket, find the 
minimal requirements, and migrate your existing application to this Wicket 
version.</p>
+        </header>
+        <section class="toc left default ">
+            <div id="toc" class="toc"><div id="toc-title"><h2>Table of 
Contents</h2></div><ul><li class="toc--level-1 toc--section-1"><a 
href="#status"><span class="toc-number">1</span> <span 
class="toc-text">Status</span></a><ul><li class="toc--level-2 
toc--section-2"><a href="#semantic-versioning"><span 
class="toc-number">1.1</span> <span class="toc-text">Semantic 
versioning</span></a></li><li class="toc--level-2 toc--section-3"><a 
href="#change-log"><span class="toc-number">1.2</span> [...]
+        </section>
+        <section>
+            <div class="button-bar">
+       <a class="button" href="#status"><i class="fa fa-info-circle"></i><br 
/>Status</a>
+       <a class="button" href="#download"><i class="fa fa-download"></i><br 
/>Download</a>
+</div>
+<div class="button-bar">
+       <a class="button" href="#requirements"><i class="fa 
fa-exclamation-triangle"></i><br />Requirements</a>
+       <a class="button" href="#migrate"><i class="fa fa-history"></i><br 
/>Migrate</a>
+</div>
+
+<h2 id="status">Status</h2>
+
+<p>The status for Wicket 10.x is: <strong>in development</strong>.</p>
+
+<p>This is the development version, <strong>NOT production ready</strong> 
release of Wicket. All
+projects intended for production use should use version 9.x.</p>
+
+<h3 id="semantic-versioning">Semantic versioning</h3>
+
+<p>These releases follow semantic versioning so upgrades between minor
+releases will not break compatibility.</p>
+
+<h3 id="change-log">Change log</h3>
+
+<p>To see what changed in these releases you can read the
+<a href="https://www.apache.org/dist/wicket/10.0.0-M1/CHANGELOG-10.x";>change 
log</a>.</p>
+
+<h2 id="download">Download</h2>
+
+<p>The most recent test version in this branch is: <strong>10.0.0-M1</strong>. 
+You can test the current state of development using <a href="#maven">Maven</a> 
or <a href="#manually">download it manually</a>.</p>
+
+<h3 id="maven">Using Apache Maven</h3>
+
+<p>Use the following Maven dependency to use Wicket in your project:</p>
+
+<figure class="highlight"><pre><code class="language-xml" 
data-lang="xml"><span class="nt">&lt;dependency&gt;</span>
+    <span class="nt">&lt;groupId&gt;</span>org.apache.wicket<span 
class="nt">&lt;/groupId&gt;</span>
+    <span class="nt">&lt;artifactId&gt;</span>wicket-core<span 
class="nt">&lt;/artifactId&gt;</span>
+    <span class="nt">&lt;version&gt;</span>10.0.0-M1<span 
class="nt">&lt;/version&gt;</span>
+<span class="nt">&lt;/dependency&gt;</span></code></pre></figure>
+
+<p>Add the snippet above to your project’s POM in the dependency
+(management) section.</p>
+
+<p>You can add more Wicket modules to your project by adding more
+dependencies (copy above snippet and change the <code 
class="language-plaintext highlighter-rouge">artifactId</code>
+accordingly).</p>
+
+<p>If you are not a Maven user, you can download the Wicket release 
manually.</p>
+
+<h3 id="manually">Download Manually</h3>
+
+<p>Use the following links to download Wicket manually to build Wicket
+from source:</p>
+
+<ul>
+  <li>Download source <a 
href="http://www.apache.org/dyn/closer.cgi/wicket/10.0.0-M1/apache-wicket-10.0.0-M1.tar.gz";>apache-wicket-10.0.0-M1.tar.gz</a>
+(<a 
href="https://www.apache.org/dist/wicket/10.0.0-M1/apache-wicket-10.0.0-M1.tar.gz.asc";>PGP</a>,
+<a 
href="https://www.apache.org/dist/wicket/10.0.0-M1/apache-wicket-10.0.0-M1.tar.gz.sha256";>SHA-256</a>
+)</li>
+  <li>Download source <a 
href="http://www.apache.org/dyn/closer.cgi/wicket/10.0.0-M1/apache-wicket-10.0.0-M1.zip";>apache-wicket-10.0.0-M1.zip</a>
+(<a 
href="https://www.apache.org/dist/wicket/10.0.0-M1/apache-wicket-10.0.0-M1.zip.asc";>PGP</a>,
+<a 
href="https://www.apache.org/dist/wicket/10.0.0-M1/apache-wicket-10.0.0-M1.zip.sha256";>SHA-256</a>
+)</li>
+</ul>
+
+<p>Or use the following links to get the pre-packaged binaries instead:</p>
+
+<ul>
+  <li>Download binaries <a 
href="http://www.apache.org/dyn/closer.cgi/wicket/10.0.0-M1/binaries/apache-wicket-10.0.0-M1-bin.tar.gz";>apache-wicket-10.0.0-M1-bin.tar.gz</a>
+(<a 
href="https://www.apache.org/dist/wicket/10.0.0-M1/binaries/apache-wicket-10.0.0-M1-bin.tar.gz.asc";>PGP</a>,
+<a 
href="https://www.apache.org/dist/wicket/10.0.0-M1/binaries/apache-wicket-10.0.0-M1-bin.tar.gz.sha256";>SHA-256</a>
+)</li>
+  <li>Download binaries <a 
href="http://www.apache.org/dyn/closer.cgi/wicket/10.0.0-M1/binaries/apache-wicket-10.0.0-M1-bin.zip";>apache-wicket-10.0.0-M1-bin.zip</a>
+(<a 
href="https://www.apache.org/dist/wicket/10.0.0-M1/binaries/apache-wicket-10.0.0-M1-bin.zip.asc";>PGP</a>,
+<a 
href="https://www.apache.org/dist/wicket/10.0.0-M1/binaries/apache-wicket-10.0.0-M1-bin.zip.sha256";>SHA-256</a>
+)</li>
+</ul>
+
+<p>Note that the binary packages and the source packages don’t contain any
+dependencies necessary to have your project working out of the box. We
+strongly urge you to use Maven (or Buildr, or Gradle) as your
+dependency management system.</p>
+
+<h3 id="verify-distributions-signature">Verify distribution’s signature</h3>
+
+<p>PGP signatures can be verified as described <a 
href="http://www.apache.org/dev/release-signing.html#verifying-signature";>on 
this page</a>. The public key used to sign Wicket distributions can be found in 
the <a href="https://www.apache.org/dist/wicket/KEYS";>KEYS file</a>.</p>
+
+<h3 id="older-releases">Older releases</h3>
+
+<p>The Apache mirroring system only hosts the latest version of each actively 
supported branch.
+When you need to download an older release you can find them in the 
archives.</p>
+
+<p>Go to <a href="https://archive.apache.org/dist/wicket";>the Apache 
archives</a> to find your specific version.</p>
+
+<h2 id="requirements">Requirements</h2>
+
+<p>Apache Wicket has few requirements in order to work properly. In this
+section you’ll find the minimum requirements for all Wicket modules.
+Specific modules may need additional libraries, such as file upload,
+date time APIs, CDI specifications, and more. See the module’s POM for
+more details on the necessary libraries.</p>
+
+<h3 id="java-version">Java version</h3>
+
+<p>This Wicket version requires at least the following Java version: 
<strong>JDK 11.0 or newer</strong>.</p>
+
+<p>Not only is a particular version of Java necessary, Wicket also needs
+access to specific APIs.</p>
+
+<h3 id="servlet-api">Servlet API</h3>
+
+<p>This Wicket version requires at least the following Servlet API
+version: <strong>Servlet API 3.1 or newer</strong>. This is provided by your
+container, please see the documentation of your container to see which
+version of the Servlet specification is supported.</p>
+
+<p>In addition to the Servlet API, Wicket uses SLF4J to let you choose
+your own implementation of a logging framework.</p>
+
+<h3 id="logging">Logging</h3>
+
+<p>You cannot use Wicket without adding an SLF4J logging implementation to
+your classpath. Most people use
+<a href="http://logging.apache.org/log4j";>log4j</a>.</p>
+
+<p>If you do, just include <strong>slf4j-log4j12.jar</strong> on your 
classpath to get
+Wicket to use log4j too. If you want to use commons-logging or JDK14
+logging or something else, please see the <a 
href="http://www.slf4j.org/faq.html";>SLF4J site</a>
+for more information.</p>
+
+<h3 id="dont-mix-wicket-versions">Don’t mix Wicket versions</h3>
+
+<p>You cannot mix different Wicket versions in your project. You should
+always use the artifacts from a particular release. For example it is
+<strong>not</strong> possible to use Wicket Extensions 1.5 in a Wicket 6 
project, or
+Wicket CDI 7.x in a Wicket 8 project. The same goes for 3rd party
+libraries: make sure you always use a compatible version of your 3rd
+party library.</p>
+
+<h2 id="migrate">Migrating from earlier versions</h2>
+
+<p>If you are migrating an existing application from earlier versions of
+Wicket you may find our migration guides invaluable:</p>
+
+<ul>
+  <li>Migrating from <a 
href="https://cwiki.apache.org/confluence/display/WICKET/Migrating+to+Wicket+1.3";>Wicket
 1.2 to Wicket 1.3</a></li>
+  <li>Migrating from <a 
href="https://cwiki.apache.org/confluence/display/WICKET/Migrating+to+Wicket+1.4";>Wicket
 1.3 to Wicket 1.4</a></li>
+  <li>Migrating from <a 
href="https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+1.5";>Wicket
 1.4 to Wicket 1.5</a></li>
+  <li>Migrating from <a 
href="https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+6.0";>Wicket
 1.5 to Wicket 6.x</a></li>
+  <li>Migrating from <a 
href="https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+7.0";>Wicket
 6.x to Wicket 7.x</a></li>
+  <li>Migrating from <a 
href="https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+8.0";>Wicket
 7.x to Wicket 8.x</a></li>
+  <li>Migrating from <a 
href="https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+9.0";>Wicket
 8.x to Wicket 9.x</a></li>
+  <li>Migrating from <a 
href="https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+10.0";>Wicket
 9.x to Wicket 10.x</a></li>
+</ul>
+
+
+        </section>
+    </div>
+</main>
+
+        <footer>
+            <div class="l-container">
+    <div class="left">
+        <img src="/img/asf_logo_url.svg" style="height:90px; float:left; 
margin-right:10px;">
+        <div style="margin-top:12px;">Copyright © 2023 — The Apache Software 
Foundation. Apache Wicket, Wicket, Apache, the Apache feather logo, and the 
Apache Wicket project logo are trademarks of The Apache Software Foundation. 
All other marks mentioned may be trademarks or registered trademarks of their 
respective owners.</div>
+    </div>
+</div>
+
+        </footer>
+    </body>
+</html>
diff --git a/start/download.md b/start/download.md
index 3ee1001c..754b7f91 100644
--- a/start/download.md
+++ b/start/download.md
@@ -8,6 +8,10 @@ preamble: Wicket is released as a source archive, convenience 
binaries and throu
 <div class="l-button-table">
     <div class="l-two-third">
         <div class="button-bar">
+               <a class="button" href="wicket-10.x.html">
+                       <i class="fa fa-cloud-download"></i><br>
+                       Apache Wicket 10.x
+               </a>
                <a class="button" href="wicket-9.x.html">
                        <i class="fa fa-cloud-download"></i><br>
                        Apache Wicket 9.x
@@ -45,6 +49,11 @@ The following releases are supported by the Wicket team.
                <th style="width:30%">Latest release</th>
                <th style="width:40%">Status</th>
        </tr>
+       <tr>
+               <td><a href="wicket-10.x.html">Wicket 10.x</a></td>
+               <td>{{site.wicket.version_10}}</td>
+               <td>in development, not for production</td>
+       </tr>
        <tr>
                <td><a href="wicket-9.x.html">Wicket 9.x</a></td>
                <td>{{site.wicket.version_90}}</td>
diff --git a/start/wicket-10.x.md b/start/wicket-10.x.md
new file mode 100644
index 00000000..a58ddf62
--- /dev/null
+++ b/start/wicket-10.x.md
@@ -0,0 +1,158 @@
+---
+layout: default
+title: Apache Wicket 10.x
+active_link: download
+preamble: Here you can learn about the status of Wicket 10.x, find links to 
download it, learn how to configure your Maven POM to use Wicket, find the 
minimal requirements, and migrate your existing application to this Wicket 
version.
+---
+<div class="button-bar">
+       <a class="button" href="#status"><i class="fa 
fa-info-circle"></i><br>Status</a>
+       <a class="button" href="#download"><i class="fa 
fa-download"></i><br>Download</a>
+</div>
+<div class="button-bar">
+       <a class="button" href="#requirements"><i class="fa 
fa-exclamation-triangle"></i><br>Requirements</a>
+       <a class="button" href="#migrate"><i class="fa 
fa-history"></i><br>Migrate</a>
+</div>
+
+## Status
+
+The status for Wicket 10.x is: **in development**.
+
+This is the development version, **NOT production ready** release of Wicket. 
All
+projects intended for production use should use version 9.x.
+
+### Semantic versioning
+
+These releases follow semantic versioning so upgrades between minor
+releases will not break compatibility.
+
+### Change log
+
+To see what changed in these releases you can read the
+[change 
log](https://www.apache.org/dist/wicket/{{site.wicket.version_10}}/CHANGELOG-10.x).
+
+## Download
+
+The most recent test version in this branch is: 
**{{site.wicket.version_10}}**. 
+You can test the current state of development using [Maven](#maven) or 
[download it manually](#manually).
+
+### Using Apache Maven {#maven}
+
+Use the following Maven dependency to use Wicket in your project:
+
+{% highlight xml %}
+<dependency>
+    <groupId>org.apache.wicket</groupId>
+    <artifactId>wicket-core</artifactId>
+    <version>{{site.wicket.version_10}}</version>
+</dependency>
+{% endhighlight xml %}
+
+Add the snippet above to your project's POM in the dependency
+(management) section.
+
+You can add more Wicket modules to your project by adding more
+dependencies (copy above snippet and change the `artifactId`
+accordingly).
+
+If you are not a Maven user, you can download the Wicket release manually.
+
+### Download Manually {#manually}
+
+Use the following links to download Wicket manually to build Wicket
+from source:
+
+- Download source 
[apache-wicket-{{site.wicket.version_10}}.tar.gz](http://www.apache.org/dyn/closer.cgi/wicket/{{site.wicket.version_10}}/apache-wicket-{{site.wicket.version_10}}.tar.gz)
+([PGP](https://www.apache.org/dist/wicket/{{site.wicket.version_10}}/apache-wicket-{{site.wicket.version_10}}.tar.gz.asc),
+[SHA-256](https://www.apache.org/dist/wicket/{{site.wicket.version_10}}/apache-wicket-{{site.wicket.version_10}}.tar.gz.sha256)
+)
+- Download source 
[apache-wicket-{{site.wicket.version_10}}.zip](http://www.apache.org/dyn/closer.cgi/wicket/{{site.wicket.version_10}}/apache-wicket-{{site.wicket.version_10}}.zip)
+([PGP](https://www.apache.org/dist/wicket/{{site.wicket.version_10}}/apache-wicket-{{site.wicket.version_10}}.zip.asc),
+[SHA-256](https://www.apache.org/dist/wicket/{{site.wicket.version_10}}/apache-wicket-{{site.wicket.version_10}}.zip.sha256)
+)
+
+Or use the following links to get the pre-packaged binaries instead:
+
+- Download binaries 
[apache-wicket-{{site.wicket.version_10}}-bin.tar.gz](http://www.apache.org/dyn/closer.cgi/wicket/{{site.wicket.version_10}}/binaries/apache-wicket-{{site.wicket.version_10}}-bin.tar.gz)
+([PGP](https://www.apache.org/dist/wicket/{{site.wicket.version_10}}/binaries/apache-wicket-{{site.wicket.version_10}}-bin.tar.gz.asc),
+[SHA-256](https://www.apache.org/dist/wicket/{{site.wicket.version_10}}/binaries/apache-wicket-{{site.wicket.version_10}}-bin.tar.gz.sha256)
+)
+- Download binaries 
[apache-wicket-{{site.wicket.version_10}}-bin.zip](http://www.apache.org/dyn/closer.cgi/wicket/{{site.wicket.version_10}}/binaries/apache-wicket-{{site.wicket.version_10}}-bin.zip)
+([PGP](https://www.apache.org/dist/wicket/{{site.wicket.version_10}}/binaries/apache-wicket-{{site.wicket.version_10}}-bin.zip.asc),
+[SHA-256](https://www.apache.org/dist/wicket/{{site.wicket.version_10}}/binaries/apache-wicket-{{site.wicket.version_10}}-bin.zip.sha256)
+)
+
+Note that the binary packages and the source packages don't contain any
+dependencies necessary to have your project working out of the box. We
+strongly urge you to use Maven (or Buildr, or Gradle) as your
+dependency management system.
+
+### Verify distribution's signature
+
+PGP signatures can be verified as described [on this 
page](http://www.apache.org/dev/release-signing.html#verifying-signature). The 
public key used to sign Wicket distributions can be found in the [KEYS 
file](https://www.apache.org/dist/wicket/KEYS). 
+
+
+### Older releases
+
+The Apache mirroring system only hosts the latest version of each actively 
supported branch.
+When you need to download an older release you can find them in the archives.
+
+Go to [the Apache archives](https://archive.apache.org/dist/wicket) to find 
your specific version.
+
+## Requirements
+
+Apache Wicket has few requirements in order to work properly. In this
+section you'll find the minimum requirements for all Wicket modules.
+Specific modules may need additional libraries, such as file upload,
+date time APIs, CDI specifications, and more. See the module's POM for
+more details on the necessary libraries.
+
+### Java version
+
+This Wicket version requires at least the following Java version: **JDK 11.0 
or newer**.
+
+Not only is a particular version of Java necessary, Wicket also needs
+access to specific APIs.
+
+### Servlet API
+
+This Wicket version requires at least the following Servlet API
+version: **Servlet API 3.1 or newer**. This is provided by your
+container, please see the documentation of your container to see which
+version of the Servlet specification is supported.
+
+In addition to the Servlet API, Wicket uses SLF4J to let you choose
+your own implementation of a logging framework.
+
+### Logging
+
+You cannot use Wicket without adding an SLF4J logging implementation to
+your classpath. Most people use
+[log4j](http://logging.apache.org/log4j).
+
+If you do, just include **slf4j-log4j12.jar** on your classpath to get
+Wicket to use log4j too. If you want to use commons-logging or JDK14
+logging or something else, please see the [SLF4J 
site](http://www.slf4j.org/faq.html)
+for more information.
+
+### Don't mix Wicket versions
+
+You cannot mix different Wicket versions in your project. You should
+always use the artifacts from a particular release. For example it is
+**not** possible to use Wicket Extensions 1.5 in a Wicket 6 project, or
+Wicket CDI 7.x in a Wicket 8 project. The same goes for 3rd party
+libraries: make sure you always use a compatible version of your 3rd
+party library.
+
+## Migrating from earlier versions {#migrate}
+
+If you are migrating an existing application from earlier versions of
+Wicket you may find our migration guides invaluable:
+
+ * Migrating from [Wicket 1.2 to Wicket 
1.3](https://cwiki.apache.org/confluence/display/WICKET/Migrating+to+Wicket+1.3)
+ * Migrating from [Wicket 1.3 to Wicket 
1.4](https://cwiki.apache.org/confluence/display/WICKET/Migrating+to+Wicket+1.4)
+ * Migrating from [Wicket 1.4 to Wicket 
1.5](https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+1.5)
+ * Migrating from [Wicket 1.5 to Wicket 
6.x](https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+6.0)
+ * Migrating from [Wicket 6.x to Wicket 
7.x](https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+7.0)
+ * Migrating from [Wicket 7.x to Wicket 
8.x](https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+8.0)
+ * Migrating from [Wicket 8.x to Wicket 
9.x](https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+9.0)
+ * Migrating from [Wicket 9.x to Wicket 
10.x](https://cwiki.apache.org/confluence/display/WICKET/Migration+to+Wicket+10.0)

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