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[#release-notes-2-3]
== 2.3

Release date:: 2015-05-09

This is the sixth GA release.
It contains several bugfixes and new features.

Apache Log4j 2.3 requires a minimum of Java 6 to build and run.
This will be the last release of Log4j 2 to support Java 6.
Future releases will require a minimum of Java 7.

Basic compatibility with Log4j 1.x is provided through the `log4j-1.2-api` component, however it does
not implement some of the very implementation specific classes and methods.
The package names and Maven `groupId` have been changed to `org.apache.logging.log4j` to avoid any conflicts with Log4j 1.x.

For complete information on Apache Log4j 2, including instructions on how to submit bug reports, patches, or suggestions for improvement, see http://logging.apache.org/log4j/2.x/[the Apache Log4j 2 website].


[#release-notes-2-3-added]
=== Added

* Truncate from the end of text format modifier. (https://issues.apache.org/jira/browse/LOG4J2-926[LOG4J2-926])
* PatternLayout %highlight to support noConsoleNoAnsi like %style. (https://issues.apache.org/jira/browse/LOG4J2-984[LOG4J2-984])

[#release-notes-2-3-changed]
=== Changed

* Update Jackson from 2.5.1 to 2.5.3. (https://issues.apache.org/jira/browse/LOG4J2-1004[LOG4J2-1004])
* Update Slf4j from 1.7.7 to 1.7.12. (https://issues.apache.org/jira/browse/LOG4J2-1005[LOG4J2-1005])
* Migrate tests from Logback 1.1.2 to 1.1.3. (https://issues.apache.org/jira/browse/LOG4J2-987[LOG4J2-987])
* Update LMAX Disruptor from 3.3.0 to 3.3.2. (https://issues.apache.org/jira/browse/LOG4J2-988[LOG4J2-988])
* Update tests to use ActiveMQ from 5.10 to 5.11.1. (https://issues.apache.org/jira/browse/LOG4J2-988[LOG4J2-988])
* Move UTF-8 constant from Charsets to Constants class. Remove Charsets class. (https://issues.apache.org/jira/browse/LOG4J2-995[LOG4J2-995])
* Make org.apache.logging.log4j.core.Logger#updateConfiguration protected. (https://issues.apache.org/jira/browse/LOG4J2-998[LOG4J2-998])

[#release-notes-2-3-fixed]
=== Fixed

* JUL Logger.throwing is mis-mapped to ERROR when it should be TRACE. (https://issues.apache.org/jira/browse/LOG4J2-1003[LOG4J2-1003])
* org.apache.logging.log4j.core.util#fileFromUri(URI uri) incorrectly converts '+' characters to spaces. (https://issues.apache.org/jira/browse/LOG4J2-1007[LOG4J2-1007])
* org.apache.logging.log4j.core.config.plugins.util.ResolverUtil.extractPath(URL) incorrectly converts '+' characters to spaces. (https://issues.apache.org/jira/browse/LOG4J2-1008[LOG4J2-1008])
* Incorrectly defined compressionType parameter to GelfLayout. (https://issues.apache.org/jira/browse/LOG4J2-1009[LOG4J2-1009])
* A new StatusLoggerAdmin listener is added to StatusLogger every time the log is reconfigured. (https://issues.apache.org/jira/browse/LOG4J2-947[LOG4J2-947])
* StringFormattedMessage serialization is incorrect. (https://issues.apache.org/jira/browse/LOG4J2-964[LOG4J2-964])
* System.out no longer works after the Console appender and JANSI are initialized. (https://issues.apache.org/jira/browse/LOG4J2-965[LOG4J2-965])
* KeyStoreConfiguration.createKeyStoreConfiguration() ignores keyManagerFactoryAlgorithm. (https://issues.apache.org/jira/browse/LOG4J2-966[LOG4J2-966])
* log4j2.component.properties not read for all properties. (https://issues.apache.org/jira/browse/LOG4J2-967[LOG4J2-967])
* SyslogLayout contains extra space. (https://issues.apache.org/jira/browse/LOG4J2-968[LOG4J2-968])
* Another bad priority in Syslog messages. (https://issues.apache.org/jira/browse/LOG4J2-971[LOG4J2-971])
* org.apache.logging.log4j.core.net.ssl.TlsSyslogInputStreamReader does not need to create temp Integer objects. (https://issues.apache.org/jira/browse/LOG4J2-972[LOG4J2-972])
* Typo in EventLogger documentation. (https://issues.apache.org/jira/browse/LOG4J2-974[LOG4J2-974])
* Using monitorInterval with YAML config file format causes JSONParseException. (https://issues.apache.org/jira/browse/LOG4J2-976[LOG4J2-976])
* Numerical overflow in BurstFilter not handled correctly. (https://issues.apache.org/jira/browse/LOG4J2-980[LOG4J2-980])
* Incorrect unlock in ProviderUtil. (https://issues.apache.org/jira/browse/LOG4J2-981[LOG4J2-981])
* AbstractFilter should not implement equals() and hashCode(). (https://issues.apache.org/jira/browse/LOG4J2-985[LOG4J2-985])
* Async root logger config should default includeLocation to false. (https://issues.apache.org/jira/browse/LOG4J2-991[LOG4J2-991])
* Deadlock would occur if appender thread creates a new Logger during reconfiguration. (https://issues.apache.org/jira/browse/LOG4J2-993[LOG4J2-993])
