<div class="wiki-content maincontent"><div style="padding-right:20px;float:left;margin-left:-20px;">
<p><span class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image confluence-external-resource" src="http://activemq.apache.org/activemq-500-release.data/activemq-5.x-box-reflection.png" data-image-src="http://activemq.apache.org/activemq-500-release.data/activemq-5.x-box-reflection.png"></span></p></div>


<div class="confluence-information-macro confluence-information-macro-warning"><p class="title">Warning</p><span class="aui-icon aui-icon-small aui-iconfont-error confluence-information-macro-icon"></span><div class="confluence-information-macro-body"><p>This release has been retracted due to bug <a shape="rect" class="external-link" href="https://issues.apache.org/jira/browse/AMQ-3491">AMQ-3491</a>. It is no longer downloadable from ASF servers. Please use the <a shape="rect" href="activemq-543-release.html">ActiveMQ 5.4.3 Release</a> instead.</p></div></div><p>Apache ActiveMQ 5.4.2 is primarily a maintenance release which resolves<br clear="none"> <a shape="rect" class="external-link" href="https://issues.apache.org/jira/secure/IssueNavigator.jspa?reset=true&amp;&amp;pid=12311210&amp;status=5&amp;status=6&amp;fixfor=12315625&amp;sorter/field=priority&amp;sorter/order=DESC">61 issues</a> mostly bug fixes and improvements</p><h2 id="ActiveMQ5.4.2Release-GettingtheBinaryDistributions">Getting the Binary Distributions</h2><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Download Link</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>PGP Signature file of download</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p>Windows Distribution</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" class="external-link" href="http://archive.apache.org/dist/activemq/apache-activemq/5.4.2/apache-activemq-5.4.2-bin.zip">apache-activemq-5.4.2-bin.zip</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" class="external-link" href="http://archive.apache.org/dist/activemq/apache-activemq/5.4.2/apache-activemq-5.4.2-bin.zip.asc">apache-activemq-5.4.2-bin.zip.asc</a></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p>Unix/Linux/Cygwin Distribution</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" class="external-link" href="http://archive.apache.org/dist/activemq/apache-activemq/5.4.2/apache-activemq-5.4.2-bin.tar.gz">apache-activemq-5.4.2-bin.tar.gz</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" class="external-link" href="http://archive.apache.org/dist/activemq/apache-activemq/5.4.2/apache-activemq-5.4.2-bin.tar.gz.asc">apache-activemq-5.4.2-bin.tar.gz.asc</a></p></td></tr></tbody></table></div><p></p><h2 id="ActiveMQ5.4.2Release-VerifytheIntegrityofDownloads">Verify the Integrity of Downloads</h2><p>It is essential that you verify the integrity of the downloaded files using the PGP or MD5 signatures. The PGP signatures can be verified using PGP or GPG. Begin by following these steps:</p><ol><li>Download the <a shape="rect" class="external-link" href="http://www.apache.org/dist/activemq/KEYS">KEYS</a></li><li>Download the asc signature file for the relevant distribution</li><li><p>Verify the signatures using the following commands, depending on your use of PGP or GPG:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="brush: java; gutter: false; theme: Default" style="font-size:12px;">$ pgpk -a KEYS
$ pgpv apache-activemq-&lt;version&gt;-bin.tar.gz.asc
</pre>
</div></div><p>or</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="brush: java; gutter: false; theme: Default" style="font-size:12px;">$ pgp -ka KEYS
$ pgp apache-activemq-&lt;version&gt;-bin.tar.gz.asc
</pre>
</div></div><p>or</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="brush: java; gutter: false; theme: Default" style="font-size:12px;">$ gpg --import KEYS
$ gpg --verify apache-activemq-&lt;version&gt;-bin.tar.gz.asc
</pre>
</div></div></li></ol><p>(Where &lt;version&gt; is replaced with the actual version, e.g., 5.1.0, 5.2.0, etc.).</p><p>Alternatively, you can verify the MD5 signature on the files. A Unix program called <code>md5</code> or <code>md5sum</code> is included in most Linux and Unix distributions. It is also available as part of <a shape="rect" class="external-link" href="http://www.gnu.org/software/textutils/textutils.html" rel="nofollow">GNU Textutils</a>. Windows users can utilize any of the following md5 programs:</p><ul><li><a shape="rect" class="external-link" href="http://www.fourmilab.ch/md5/" rel="nofollow">md5</a></li><li><a shape="rect" class="external-link" href="http://www.pc-tools.net/win32/md5sums/" rel="nofollow">md5sums</a></li><li><a shape="rect" class="external-link" href="http://www.slavasoft.com/fsum/" rel="nofollow">SlavaSoft FSUM</a></li></ul><h2 id="ActiveMQ5.4.2Release-GettingtheBinariesusingMaven2">Getting the Binaries using Maven 2</h2><p>To use this release in your maven project, the proper dependency configuration that you should use in your <a shape="rect" class="external-link" href="http://maven.apache.org/guides/introduction/introduction-to-the-pom.html">Maven POM</a> is:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="brush: java; gutter: false; theme: Default" style="font-size:12px;">&lt;dependency&gt;
  &lt;groupId&gt;org.apache.activemq&lt;/groupId&gt;
  &lt;artifactId&gt;activemq-core&lt;/artifactId&gt;
  &lt;version&gt;5.4.2&lt;/version&gt;
&lt;/dependency&gt;
</pre>
</div></div><div></div>


<h2 id="ActiveMQ5.4.2Release-GettingtheSourceCode">Getting the Source Code</h2><h3 id="ActiveMQ5.4.2Release-SourceDistributions">Source Distributions</h3><div class="table-wrap"><table class="confluenceTable"><tbody><tr><th colspan="1" rowspan="1" class="confluenceTh"><p>Description</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>Download Link</p></th><th colspan="1" rowspan="1" class="confluenceTh"><p>PGP Signature file of download</p></th></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p>Source for Windows</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" class="external-link" href="http://archive.apache.org/dist/activemq/apache-activemq/5.4.2/activemq-parent-5.4.2-source-release.zip">activemq-parent-5.4.2-source-release.zip</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" class="external-link" href="http://archive.apache.org/dist/activemq/apache-activemq/5.4.2/activemq-parent-5.4.2-source-release.zip.asc">activemq-parent-5.4.2-source-release.zip.asc</a></p></td></tr><tr><td colspan="1" rowspan="1" class="confluenceTd"><p>Source for Unix/Linux/Cygwin</p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" class="external-link" href="http://archive.apache.org/dist/activemq/apache-activemq/5.4.2/activemq-parent-5.4.2-source-release.tar.gz">activemq-parent-5.4.2-source-release.tar.gz</a></p></td><td colspan="1" rowspan="1" class="confluenceTd"><p><a shape="rect" class="external-link" href="http://archive.apache.org/dist/activemq/apache-activemq/5.4.2/activemq-parent-5.4.2-source-release.tar.gz.asc">activemq-parent-5.4.2-source-release.tar.gz.asc</a></p></td></tr></tbody></table></div><h3 id="ActiveMQ5.4.2Release-SVNTagCheckout">SVN Tag Checkout</h3><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="brush: java; gutter: false; theme: Default" style="font-size:12px;">svn co http://svn.apache.org/repos/asf/activemq/tags/activemq-5.4.2
</pre>
</div></div><h2 id="ActiveMQ5.4.2Release-Changelog">Changelog</h2><p>For a more detailed view of new features and bug fixes, see the <a shape="rect" class="external-link" href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12311210&amp;styleName=Html&amp;version=12315625">release notes</a></p><p>Also see the previous <a shape="rect" href="activemq-541-release.html">ActiveMQ 5.4.1 Release</a></p></div>