Blogged: https://blogs.apache.org/logging/entry/log4j_2_6_2_released
On Mon, Jul 11, 2016 at 4:31 AM, Ralph Goers <ralph.go...@dslextreme.com> wrote: > The Apache Log4j 2 team is pleased to announce the Log4j 2.6.2 release! > > 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 other modern features such as support for Markers, lambda expressions > for lazy logging, > property substitution using Lookups, multiple patterns on a PatternLayout and > asynchronous > Loggers. Another notable Log4j 2 feature is the ability to be "garbage-free" > (avoid allocating > temporary objects) while logging. In addition, Log4j 2 will not lose events > while reconfiguring. > > This is the twelfth GA release. It is primarily a bugfix release. More > details on the > fixes are itemized below. > > Note that subsequent to the 2.6 release a minor source incompatibility was > found due to the > addition of new methods to the Logger interface. If you have code that does: > > logger.error(null, “This is the log message”, throwable); > > or similar with any log level you will get a compiler error saying the > reference is ambiguous. > To correct this either do: > > logger.error(“This is the log message”, throwable); > > or > > logger.error((Marker) null, “This is the log message”, throwable); > > Log4j 2.6.2 maintains binary compatibility with previous releases. > > GA Release 2.6.2 > > Changes in this version include: > > New features: > o LOG4J2-1395: Add "direct" option to ConsoleAppender for increased > performance. > o LOG4J2-1437: (GC) ObjectMessage and ReusableObjectMessage now avoid > calling toString() on auto-boxed primitive parameters. > o LOG4J2-1415: (GC) ParameterFormatter now avoids calling toString() on > auto-boxed primitive message parameters. > o LOG4J2-1412: Unbox utility's ringbuffer of StringBuilders is now > configurable. > > Fixed Bugs: > o LOG4J2-904: If copy and delete fails in rename action then resort to > truncating the source file after copying it. Thanks to Bernhard Mähr. > o LOG4J2-1250: CronTriggeringPolicy was not properly setting the > prevFileTime value for the PatternProcessor so > file dates and times on rolled files were incorrect. > o LOG4J2-1452: Fixed issue where reusable messages broke flow tracing logic. > Thanks to Mikael Ståldal. > o LOG4J2-1440: Fix bug in OnStartupTriggeringPolicy that allowed it to roll > over on every reconfiguration. Added > minSize attribute. > o LOG4J2-1414: Fixed minor issues with the 2.6.1 web site. Thanks to Ralph > Goers. > o LOG4J2-1434: Ensure that the thread-local StringBuilders used by Layouts > to format log events to text will not > retain excessive memory after a large message was logged. Thanks to > Luke Butters. > o LOG4J2-1418: Provide MessageFactory2 to custom Logger implementations. > o LOG4J2-1420: RollingRandomAccessFileManager was not properly rolling over > on startup and was getting a NullPointerException. > o LOG4J2-1417: Fixed issue where Unbox utility ignored the value > Constants.ENABLE_THREADLOCALS and always stored non-JDK classes in > ThreadLocals. > o LOG4J2-1422: Fixed issue where AsyncAppenderQueueFullPolicyTest sometimes > hangs. > o LOG4J2-1445: OnStartupTriggeringPolicyTest fails on Windows saying the > file is used by another process. Thanks to Ludovic HOCHET. > > Changes: > o LOG4J2-1432: Update Jackson from 2.7.4 to 2.7.5. > o LOG4J2-1433: Update Jansi from 1.11 to 1.13. > o LOG4J2-1444: Update Apache Commons Compress from 1.11 to 1.12. > > > Apache Log4j 2.6.2 requires a minimum of Java 7 to build and run. Log4j 2.3 > was the last release that > supported Java 6. > > 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 the Apache Apache Log4j 2 > website: > > http://logging.apache.org/log4j/2.x/ > >