Apache Log4j 2.13.1 released. Log4j is a framework used to record the behavior of the application. Log4j Log4j 2 is an upgrade, providing significant improvements, beyond its predecessor Log4j 1.x, and provides many other modern features, such as support for labeling, use the Find replace the property, no trash when lambda expressions and logging, etc. .
This version includes bug fixes and some very small enhancements.
SLF4J bound due to compatibility issues, so now with two versions Log4j Log4j SLF4J to the adapter. log4j-slf4j-impl should be used in conjunction with SLF4J 1.7.x and earlier, and log4j-slf4j18-impl should be used in conjunction with SLF4J 1.8.x and later.
It should be noted, XML, JSON and YAML format was changed in version 2.11.0: they are no longer "timeMillis" attribute, but with "Instant" "epochSecond" and "nanoOfSecond" attribute of the element.
Log4j 2.13.1 API as well as many of the core components of binary files had been maintained from the previous version is compatible with.
Specific updates, see the release notes .