Apache Log4j is a versatile, industrial-grade Java logging framework composed of an API, its implementation, and components to assist the deployment for various use cases.

You can manually download all published Log4j distributions, verify them, and see their licensing information by following the instructions in the Download page of Logging Services.

Apache 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 …

What is Log4j composed of? Log4j is essentially composed of a logging API called Log4j API, and its reference implementation called Log4j Core. Log4j also bundles several logging bridges to enable …

Apache Log4j is a versatile, industrial-grade Java logging framework composed of an API, its implementation, and components to assist the deployment for various use cases.

The spring-boot-starter-log4j2 artifact will automatically install Log4j Core, JUL-to-Log4j bridge, and configure them. You don’t need to add any other dependency or configure JUL anymore.

There may be a concern that using the Log4j API will tightly couple your application to Log4j. This is not the case: applications coded to Log4j API always have the option to use any SLF4J-compliant …

The spring-boot-starter-log4j2 artifact will automatically install Log4j Core, JUL-to-Log4j bridge, and configure them. You don’t need to add any other dependency or configure JUL anymore.

GraalVM Reachability Metadata Log4j Core and all extension modules now include embedded GraalVM reachability metadata, enabling seamless generation of native images with GraalVM out of the …

Log4j 1 has reached End of Life in 2015, and is no longer supported. Vulnerabilities reported after August 2015 against Log4j 1 are not checked and will not be fixed. Users should upgrade to Log4j 2 …