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List:       apache-logging-general
Subject:    [ANNOUNCEMENT] Log4j 2.14.0 released
From:       Ralph Goers <ralph.goers () dslextreme ! com>
Date:       2020-11-11 5:52:01
Message-ID: 1DB3252D-23C2-436E-B8BB-B7D33466BB49 () dslextreme ! com
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The Apache Log4j 2 team is pleased to announce the Log4j 2.14.0 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.

The artifacts may be downloaded from \
https://logging.apache.org/log4j/2.x/download.html.

This release contains a new Layout, JsonTemplateLayout, that is intended to \
ultimately replace JsonLayout. As its name suggests it uses a template to define the \
elements to include in the JSON. This Layout was contributed by the author of the \
log4j2-logstash-layout at GitHub, and who is now a member of the Log4j community.

Log4j 2.14.0 adds support for MongoDB 4 and removes support for MongoDB 2.

This release also contains a number of bug fixes which are listed below.

Due to a break in compatibility in the SLF4J binding, Log4j now ships with two \
versions of the SLF4J to Log4j adapters. log4j-slf4j-impl should be used with SLF4J \
1.7.x and earlier and log4j-slf4j18-impl should be used with SLF4J 1.8.x and later.

The Log4j 2.14.0 API, as well as many core components, maintains binary compatibility \
with previous releases.

GA Release 2.14.0

Changes in this version include:

New Features

	• LOG4J2-2957: Add JsonTemplateLayout.
	• LOG4J2-2848: Create module log4j-mongodb4 to use new major version 4 MongoDB \
driver.  • LOG4J2-2858: More flexible configuration of the Disruptor WaitStrategy. \
Thanks to Stepan Gorban. Fixed Bugs

	• LOG4J2-2925: Fix broken link in FAQ.
	• LOG4J2-2911: Log4j2EventListener in spring.cloud.config.client listens for wrong \
event.  • LOG4J2-2919: Call ReliabilityStrategy's beforeStopAppenders() method \
before stopping AsyncAppender. Thanks to Geng Yuanzhe.  • LOG4J2-2906: Fix \
UnsupportedOperationException when initializing the Log4j2CloudConfigLoggingSystem. \
Thanks to Stephen Joyner.  • LOG4J2-2908: Move Spring Lookup and Spring \
PropertySource to its own module.  • LOG4J2-2910: Log4j-web should now stores the \
servlet context as a map entry instead of in the single external context field.  • \
LOG4J2-2822: Javadoc link in ThreadContext description was incorrect.  • \
LOG4J2-2894: Fix spelling error in log message.  • LOG4J2-2901: Missing \
configuration files should be ignored when creating a composite configuration.  • \
LOG4J2-2883: When using DirectFileRolloverStrategy the file pattern was not being \
recalculated on size based rollover after a time based rollover had occurred.  • \
LOG4J2-2875: Rollover was failing to create directories when using a \
DirectFileeRolloverStrategy.  • LOG4J2-2859: Fixed typos where mergeFactory should \
be mergeStrategy. Thanks to Yanming Zhou.  • LOG4J2-2832: Correct class name \
printed in error message in RollingFileAppender. Thanks to Benjamin Asbach.  • \
LOG4J2-2882: Support java.util.logging filters when using that API. Thanks to \
Emmanuel Bourg.  • LOG4J2-2880: Create StackWalker benchmark. Revert back to \
StackWalker.walk based on benchmark results.  • LOG4J2-2867: Obtain \
ContextDataProviders asynchronously.  • LOG4J2-2877: Determine the container id to \
obtain container and image information.  • LOG4J2-2844: Null pointer exception when \
no network interfaces are available.  • LOG4J2-2895: Fix potential deadlock in \
asynchronous logging by avoiding blocking for queue space on Log4jThreads  • \
LOG4J2-2837: Disruptor and JUL no longer recursively start the AsyncLoggerDisruptor \
resulting in an extra disruptor background thread constantly waiting.  • \
LOG4J2-2867: RingBufferLogEventTranslator uses a static ContextDataInjector instead \
of initializing a new object on each thread.  • LOG4J2-2898: Avoid initializing \
volatile fields with default values. Thanks to Turbanov Andrey.  • LOG4J2-2899: Fix \
log4j-1.2-api LogEventWrapper threadId and priority accessors when called multiple \
times.  • LOG4J2-2939: Fix NPE in MDCContextMap on 'contains' and 'isEmpty' \
invocations. Thanks to Constantin Hirsch.  • LOG4J2-2954: Prevent premature garbage \
collection of shutdown hooks in DefaultShutdownCallbackRegistry. Thanks to Henry \
Tung. Changes

	• LOG4J2-2889: Add date pattern support for HTML layout. Thanks to Geng Yuanzhe.
	• LOG4J2-2892: Allow GelfLayout to produce newline delimited events. Thanks to \
Jakub Lukes.  • : Update MongoDB tests to require Java 8 unconditionally now that \
Log4j requires Java 8.  • : Update mongodb3.version from 3.12.1 to 3.12.6.
	• : Update com.fasterxml.jackson.* 2.10.2 -> 2.11.0.
	• : Update org.apache.activemq:activemq-broker 5.15.11 -> 5.16.0.
	• : Update org.apache.commons:commons-compress 1.19 -> 1.20.
	• : Update org.apache.commons:commons-csv 1.7 -> 1.8.
	• : Update org.apache.commons:commons-lang3 3.9 -> 3.10.
	• : Update org.codehaus.groovy:* 2.5.6 -> 3.0.5.
	• : Update tests junit:junit 4.12 -> 4.13.
	• : Update tests commons-io:commons-io 2.6 -> 2.7.
	• : Update jackson 2.11.0 -> 2.11.2.
	• : Update tests hsqldb 2.5.0 -> 2.5.1.
Removed

	• LOG4J2-2851: Drop log4j-mongodb2 module.
Apache Log4j 2.14.0 requires a minimum of Java 8 to build and run. Log4j 2.12.1 is \
the last release to support Java 7.

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:

https://logging.apache.org/log4j/2.x/


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