Hi Pavel,

On 28.11.2024 11:36, PavelTurk wrote:

I work only with JPMS and decided to test log4j 3. As I understand the last version is 3.0.0-beta3 but there is no log4j-slf4j2-implĀ  for this version: https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-slf4j2-impl

Could anyone say how to route slf4j2 messages to log4j in 3.0.0-beta3?

All the API-to-API bridges are still available, they are just not published together with Log4j Core 3, since they don't depend on Log4j Core (see release notes[1]).

Since both Log4j Core 2.24.2 and Log4j Core 3.0.0-beta3 implement Log4j API 2.24, the right version of `log4j-slf4j2-impl` to use is `2.24.2`.

I understand that the fact Log4j Core 3 implements Log4j API 2 might be confusing, therefore we recommend all users to use `log4j-bom` to manage the version of Log4j Core. The usage of the BOM will guarantee you that the right version of Log4j API and the logging bridges will be used, even if other libraries in your dependency stack specify a different version of Log4j API.

Piotr

[1] https://logging.apache.org/log4j/3.x/release-notes.html#release-notes-3-0-0-beta3

[2] https://logging.apache.org/log4j/3.x/components.html#log4j-bom



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