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<div class="sect1">
<h2 id="release-notes-2-5">2.5</h2>
<div class="sectionbody">
<div class="dlist">
<dl>
<dt class="hdlist1">Release date</dt>
<dd>
<p>2015-12-06</p>
</dd>
</dl>
</div>
<div class="paragraph">
<p>This is the ninth GA release.
It contains several bugfixes and new features.
The new features include the ability to specify delete actions during file rollover, a CRON-based
triggering policy for file rollover, support for JSR 223 scripts in filters, pattern selectors and delete actions, and a policy for removing idle appenders from the <code>RoutingAppender</code>.
More details on the features and bugfixes are itemized below.</p>
</div>
<div class="paragraph">
<p>Log4j 2.5 requires a minimum of Java 7 to build and run.
Log4j 2.3 was the last release that supported Java 6.</p>
</div>
<div class="paragraph">
<p>Basic compatibility with Log4j 1.x is provided through the <code>log4j-1.2-api</code> component, however it does
not implement some of the very implementation specific classes and methods.
The package names and Maven <code>groupId</code> have been changed to <code>org.apache.logging.log4j</code> to avoid any conflicts with Log4j 1.x.</p>
</div>
<div class="paragraph">
<p>For complete information on Apache Log4j 2, including instructions on how to submit bug reports, patches, or suggestions for improvement, see <a href="http://logging.apache.org/log4j/2.x/">the Apache Log4j 2 website</a>.</p>
</div>
<div class="sect2">
<h3 id="release-notes-2-5-added">Added</h3>
<div class="ulist">
<ul>
<li>
<p>Add support for JSR 223 scripts in filters and the PatternSelector. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1136">LOG4J2-1136</a>)</p>
</li>
<li>
<p>Add getters for source and destination file in file rename action. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1168">LOG4J2-1168</a>)</p>
</li>
<li>
<p>Add getters for classes in org.apache.logging.log4j.core.appender.rolling.action. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1175">LOG4J2-1175</a>)</p>
</li>
<li>
<p>Support use-case for JDBC&#8217;s CommonDataSource.setLogWriter(PrintWriter) and java.sql.DriverManager.setLogWriter(PrintWriter). (<a href="https://issues.apache.org/jira/browse/LOG4J2-1178">LOG4J2-1178</a>)</p>
</li>
<li>
<p>Support use case for java.sql.DriverManager.setLogStream(PrintStream). (<a href="https://issues.apache.org/jira/browse/LOG4J2-1187">LOG4J2-1187</a>)</p>
</li>
<li>
<p>Added support for custom delete actions triggered by a rollover. (<a href="https://issues.apache.org/jira/browse/LOG4J2-435">LOG4J2-435</a>)</p>
</li>
<li>
<p>Added system property to allow users to control whether messages should be formatted in the background. (<a href="https://issues.apache.org/jira/browse/LOG4J2-898">LOG4J2-898</a>)</p>
</li>
<li>
<p>Allow rollover to occur at any time. Add CronTriggeringPolicy. (<a href="https://issues.apache.org/jira/browse/LOG4J2-89">LOG4J2-89</a>)</p>
</li>
</ul>
</div>
</div>
<div class="sect2">
<h3 id="release-notes-2-5-changed">Changed</h3>
<div class="ulist">
<ul>
<li>
<p>Update Jackson from 2.6.2 to 2.6.3. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1174">LOG4J2-1174</a>)</p>
</li>
<li>
<p>Remove ConfigurationMonitor. The WatchManager is now used to check for configuration changes. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1202">LOG4J2-1202</a>)</p>
</li>
<li>
<p>Update kafka-clients from 0.8.2.2 to 0.9.0.0. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1207">LOG4J2-1207</a>)</p>
</li>
<li>
<p>Add PurgePolicy and IdlePurgePolicy to RoutingAppender. (<a href="https://issues.apache.org/jira/browse/LOG4J2-649">LOG4J2-649</a>)</p>
</li>
</ul>
</div>
</div>
<div class="sect2">
<h3 id="release-notes-2-5-fixed">Fixed</h3>
<div class="ulist">
<ul>
<li>
<p>Performance improvement when gathering location information. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1029">LOG4J2-1029</a>)</p>
</li>
<li>
<p>Web site corrections and updates. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1156">LOG4J2-1156</a>)</p>
</li>
<li>
<p>Fix compilation error for classes annotated with @Plugin. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1157">LOG4J2-1157</a>)</p>
</li>
<li>
<p>Log4J JUL adapter is using MessageFormat on String passed by java.util.function.Supplier&lt;String&gt;. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1158">LOG4J2-1158</a>)</p>
</li>
<li>
<p>Fixed a ThreadLocal memory leak in Tomcat8 that mentions AsyncLoggers when Async Loggers are not used. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1159">LOG4J2-1159</a>)</p>
</li>
<li>
<p>Improve Log4j initialization status messages. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1165">LOG4J2-1165</a>)</p>
</li>
<li>
<p>AbstractConfiguration executor should use a DaemonThreadFactory. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1166">LOG4J2-1166</a>)</p>
</li>
<li>
<p>Use servlet context name for logger context name when available. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1171">LOG4J2-1171</a>)</p>
</li>
<li>
<p>Fixed ThreadLocal leak [AsyncLogger$Info] on Tomcat when using AsyncLoggerContextSelector. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1172">LOG4J2-1172</a>)</p>
</li>
<li>
<p>Fixed rollover error when copying to a directory mapped to a remote Linux host. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1173">LOG4J2-1173</a>)</p>
</li>
<li>
<p>Fixed memory leak when log4j jars are in Tomcat&#8217;s lib folder. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1176">LOG4J2-1176</a>)</p>
</li>
<li>
<p>Logger cache does not account for message factory. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1180">LOG4J2-1180</a>)</p>
</li>
<li>
<p>Prefix all thread names Log4j creates with "Log4j2-". (<a href="https://issues.apache.org/jira/browse/LOG4J2-1193">LOG4J2-1193</a>)</p>
</li>
<li>
<p>Documentation does not match parameters for LoggerNameLevelRewritePolicy. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1194">LOG4J2-1194</a>)</p>
</li>
<li>
<p>Make KafkaAppender support SerializedLayout. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1195">LOG4J2-1195</a>)</p>
</li>
<li>
<p>MongoDbConnection does not close MongoClient. (<a href="https://issues.apache.org/jira/browse/LOG4J2-1196">LOG4J2-1196</a>)</p>
</li>
<li>
<p>Better web app support for async loggers: Fixed a memory leak that occurred when the logging jars are placed in the container&#8217;s classpath and the configuration file uses AsyncRoot/AsyncLogger. The problem was that the first web application started the Disruptor background thread [AsyncLoggerConfig-1] but did not stop it until all web apps are stopped. Each web application now has its own Disruptor which is stopped/started together with the web app. (<a href="https://issues.apache.org/jira/browse/LOG4J2-323">LOG4J2-323</a>)</p>
</li>
<li>
<p>Reduced memory usage of status messages in bounded queue; support zero-length queue that stores no messages. (<a href="https://issues.apache.org/jira/browse/LOG4J2-324">LOG4J2-324</a>)</p>
</li>
<li>
<p>Allow triggering policy and rollover strategy to be modified during reconfiguration. (<a href="https://issues.apache.org/jira/browse/LOG4J2-381">LOG4J2-381</a>)</p>
</li>
<li>
<p>Better web app support for async loggers: it is now possible to place the logging jars in the container&#8217;s classpath when making all loggers asynchronous by using AsyncLoggerContextSelector. This fixes a problem where logging would stop working after stopping and restarting a web application. (<a href="https://issues.apache.org/jira/browse/LOG4J2-493">LOG4J2-493</a>)</p>
</li>
<li>
<p>org.apache.logging.log4j.core.Logger should be serializable. (<a href="https://issues.apache.org/jira/browse/LOG4J2-801">LOG4J2-801</a>)</p>
</li>
<li>
<p>Fixed bug where omitting the &lt;display-name&gt; element in web.xml caused incorrect log4j initialization, resulting in memory leaks when the web application was stopped or reloaded. (<a href="https://issues.apache.org/jira/browse/LOG4J2-873">LOG4J2-873</a>)</p>
</li>
<li>
<p>Documentation: fixed minor issues with the site and manual pages. (<a href="https://issues.apache.org/jira/browse/LOG4J2-879">LOG4J2-879</a>)</p>
</li>
<li>
<p>Fix plugin documentation error about Converters. (<a href="https://issues.apache.org/jira/browse/LOG4J2-948">LOG4J2-948</a>)</p>
</li>
<li>
<p>RollingFileAppender should also roll over when log event time is equal to rollover time, not only when later. (<a href="https://issues.apache.org/jira/browse/LOG4J2-999">LOG4J2-999</a>)</p>
</li>
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