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| Apache Log4j 2.0 RELEASE NOTES |
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| The Apache Log4j 2 team is pleased to announce the Log4j 2.0 release! |
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| Apache log4j is a well known framework for logging application behavior. Log4j 2 is an upgrade to |
| Log4j that provides significant improvements over its predecessor, Log4j 1.x, and provides |
| many of the improvements available in Logback while fixing some inherent problems in Logback's |
| architecture. |
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| This is the first GA release, after thirteen prior releases over the last 4 years. |
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| GA Release |
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| Changes in this version include: |
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| New features: |
| o LOG4J2-519: Added support for generating custom logger wrappers that replace the existing log levels |
| and extended logger wrappers that add custom log levels to the existing ones. |
| o LOG4J2-696: RegexFilter does not match multiline log messages. |
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| Fixed Bugs: |
| o LOG4J2-705: Fixed issue where Async Logger does not log thread context stack data. |
| API change: added method getImmutableStackOrNull() to ThreadContext.ContextStack interface. |
| o LOG4J2-631: Update docs to clarify how to use formatter logger and standard logger together. |
| o LOG4J2-441: LoggerConfigs with no Level now inherit the Level from their parent. |
| o LOG4J2-703: Android: Could not find class 'javax.naming.InitialContext', referenced from method org.apache.logging.log4j.core.lookup.JndiLookup.lookup. Thanks to Nelson Melina. |
| o LOG4J2-699: PatternLayout manual page missing documentation on header/footer. |
| o LOG4J2-625: Fixed Serialization error with SocketAppender and Async Loggers. |
| (Fixed in RC2, but wasn't included in release notes.) |
| o LOG4J2-538: JMX GUI: fixed occasional ArrayIndexOutOfBoundsException after pressing "reconfigure with XML below". |
| (Fixed in RC2, but wasn't included in release notes.) |
| o LOG4J2-666: AsyncLoggerContextSelector should ensure that different AsyncLoggerContext objects created by web app classloaders have unique names. |
| o LOG4J2-683: Fix annotation processor warnings on JDK 1.7+. Thanks to Jurriaan Mous. |
| o LOG4J2-694: Fix strange compilation error that popped up in a test class. |
| o LOG4J2-692: Update documentation to specify only Maven 3 is supported. |
| o LOG4J2-690: Log4j Web test dependencies should be in scope "test" in the pom. Thanks to Philip Helger. |
| o LOG4J2-682: Special characters (tab and so on) in PatternLayout do not work. Thanks to Scott Harrington. |
| o LOG4J2-686: Core's OptionConverter support for \b is broken (affects PatternLayout). |
| o LOG4J2-687: Rename org.apache.logging.log4j.core.util.Closer.closeSilent() to closeSilently(). |
| o LOG4J2-688: Make org.apache.logging.log4j.core.layout.PatternLayout immutable. |
| o LOG4J2-707: Some exceptions are not logged when configuration problems are detected. |
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| Changes: |
| o LOG4J2-685: Make org.apache.logging.log4j.core.layout.AbstractLayout immutable. |
| o LOG4J2-689: Update Jackson to 2.4.1. |
| o LOG4J2-709: Update Apache Commons Logging to 1.2 from 1.1.3. |
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| Apache Log4j 2.0 requires a minimum of Java 6 to build and run. 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. |
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| For complete information on Apache Log4j 2, including instructions on how to submit bug reports, |
| patches, or suggestions for improvement, see the Apache Apache Log4j 2 website: |
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| http://logging.apache.org/log4j/2.x/ |
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