[ANNOUNCE] Apache Log4j 2.19.0 released

The Apache Log4j 2 team is pleased to announce the Log4j 2.19.0 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 primarily contains bug fixes and minor enhancements.

Due to breaks 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-slf4j2-impl should =
be used with SLF4J 2.x and later. SLF4J-1.8.x is no longer supported as =
a GA release never occurred.

The Log4j 2.19.0 API, as well as many core components, maintains binary =
compatibility with previous releases.

GA Release 2.19.0

Changes in this version include:

New Features
	=E2=80=A2 LOG4J2-3583: Add support for SLF4J2 stack-valued MDC. =
Thanks to Pierrick Terrettaz.
	=E2=80=A2 LOG4J2-2975: Add implementation of SLF4J2 fluent API. =
Thanks to Daniel Gray.

Fixed Bugs
	=E2=80=A2 LOG4J2-3578: Generate new SSL certs for testing.
	=E2=80=A2 LOG4J2-3556: Make JsonTemplateLayout stack trace =
truncation operate for each label block. Thanks to Arthur Gavlyukovskiy.
	=E2=80=A2 LOG4J2-3550: SystemPropertyArbiter was assigning the =
value as the name. Thanks to DongjianPeng.
	=E2=80=A2 LOG4J2-3560: Logger$PrivateConfig.filter(Level, =
Marker, String) was allocating empty varargs array. Thanks to David =
Schlosnagle.
	=E2=80=A2 LOG4J2-3561: Allows a space separated list of style =
specifiers in the %style pattern for consistency with %highlight. Thanks =
to Robert Papp.
	=E2=80=A2 LOG4J2-3564: Fix NPE in log4j-to-jul in the case the =
root logger level is null.
	=E2=80=A2 LOG4J2-3545: Add correct manifest entries for OSGi to =
log4j-jcl Thanks to Johan Compagner.
	=E2=80=A2 LOG4J2-3565: Fix RollingRandomAccessFileAppender with =
DirectWriteRolloverStrategy can't create the first log file of different =
directory.
	=E2=80=A2 LOG4J2-3579: Fix ServiceLoaderUtil behavior in the =
presence of a SecurityManager. Thanks to Boris Unckel.
	=E2=80=A2 LOG4J2-3559: Fix resolution of properties not starting =
with log4j2.. Thanks to Gary Gregory.
	=E2=80=A2 LOG4J2-3557: Fix recursion between Log4j 1.2 =
LogManager and Category. Thanks to Andreas Leitgeb.
	=E2=80=A2 LOG4J2-3587: Fix regression in Rfc5424Layout default =
values. Thanks to Tomas Micko.
	=E2=80=A2 LOG4J2-3548: Improve support for passwordless =
keystores. Thanks to Kristof Farkas-Pall.
	=E2=80=A2 LOG4J2-708: Add async support to Log4jServletFilter.

Changes
	=E2=80=A2 LOG4J2-3572: Add getExplicitLevel method to =
LoggerConfig.
	=E2=80=A2 LOG4J2-3589: Allow Plugins to be injected with the =
LoggerContext reference.
	=E2=80=A2 LOG4J2-3588: Allow PropertySources to be added.

Removed
	=E2=80=A2 LOG4J2-3573: Removed build page in favor of a single =
build instructions file. Thanks to Wolff Bock von Wuelfingen.
	=E2=80=A2 LOG4J2-3590: Remove SLF4J 1.8.x binding.

Apache Log4j 2.19.0 requires a minimum of Java 8 to build and run. Log4j =
2.12.4 is the last release to support Java 7. Log4j 2.3.2 is the last =
release to support Java 6. Java 6 and Java 7 are no longer supported by =
the Log4j team.

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/=