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<h1>Apache Wicket 9.9.1 released</h1>
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<section class="toc left post ">
<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="#new-and-noteworthy"><span class="toc-number">1</span> <span class="toc-text">New and noteworthy</span></a></li><li class="toc--level-1 toc--section-2"><a href="#using-this-release"><span class="toc-number">2</span> <span class="toc-text">Using this release</span></a></li><li class="toc--level-1 toc--section-3"><a href="#upgrading-from-earlier-versions"><span class="toc-number">3</span> <span class="toc-text">Upgrading from earlier versions</span></a><ul><li class="toc--level-2 toc--section-4"><a href="#this-release"><span class="toc-number">3.1</span> <span class="toc-text">This Release</span></a></li></ul></li></ul></div>
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<p class="meta">08 Apr 2022</p>
<p>The Apache Wicket PMC is proud to announce Apache Wicket 9.9.1!</p>
<p>Apache Wicket is an open source Java component oriented web application
framework that powers thousands of web applications and web sites for
governments, stores, universities, cities, banks, email providers, and
more. You can find more about Apache Wicket at https://wicket.apache.org</p>
<p>This release marks another minor release of Wicket 9. We
use semantic versioning for the development of Wicket, and as such no
API breaks are present in this release compared to 9.0.0.</p>
<h2 id="new-and-noteworthy">New and noteworthy</h2>
<p>This hotfix reverts WICKET-6963 which causes MarkupException in some particular cases.
(see https://lists.apache.org/thread/y0zthfw2on04sm9wpn60my3x53b8cb3n).
In addition, this release updates Spring Core dependency to version 5.3.18 which provides a fix
for Spring4shell vulnerability (CVE-2022-22965).</p>
<p>NOTE: Wicket is NOT directly impacted by Spring4shell. Your application might be exposed to this
vulnerability only if you use Spring web frameworks (i.e. Spring MVC and Spring WebFlux).</p>
<h2 id="using-this-release">Using this release</h2>
<p>With Apache Maven update your dependency to (and don’t forget to
update any other dependencies on Wicket projects to the same version):</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>9.9.1<span class="nt">&lt;/version&gt;</span>
<span class="nt">&lt;/dependency&gt;</span></code></pre></figure>
<p>Or download and build the distribution yourself, or use our
convenience binary package you can find here:</p>
<ul>
<li>Download: http://wicket.apache.org/start/wicket-9.x.html#manually</li>
</ul>
<!--more-->
<h2 id="upgrading-from-earlier-versions">Upgrading from earlier versions</h2>
<p>If you upgrade from 9.y.z this release is a drop in replacement. If
you come from a version prior to 9.0.0, please read our Wicket 9
migration guide found at</p>
<ul>
<li>http://s.apache.org/wicket9migrate</li>
</ul>
<p>Have fun!</p>
<p>— The Wicket team</p>
<p>========================================================================</p>
<h3 id="this-release">This Release</h3>
<h4 id="changelog-for-991">CHANGELOG for 9.9.1:</h4>
<h5 id="bug">Bug</h5>
<ul>
<li>[WICKET-6966] - IndexOutOfBounds in InSessionPageStore</li>
<li>[WICKET-6965] - Memory leak in WicketEndpoint</li>
</ul>
<h5 id="improvement">Improvement</h5>
<ul>
<li>[WICKET-6963] - (REVERTED) Use singletons for PanelMarkupSourcingStrategy</li>
</ul>
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