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https://issues.apache.org/jira/browse/FLINK-40574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martijn Visser updated FLINK-40574:
-----------------------------------
    Release Note: Flink now ships SLF4J 2.0.20 and the log4j-slf4j2-impl 
binding instead of log4j-slf4j-impl. Logging backends built for SLF4J 1.7, such 
as Logback 1.2 and slf4j-log4j12, no longer work and produce no logs; use 
Logback 1.5 or slf4j-reload4j instead. Jars that bundle slf4j-api 1.x, 
including job jars in lib/ or on YARN, disable logging as well.

> Update SLF4J from 1.7.36 to 2.x
> -------------------------------
>
>                 Key: FLINK-40574
>                 URL: https://issues.apache.org/jira/browse/FLINK-40574
>             Project: Flink
>          Issue Type: Improvement
>          Components: API / Core
>            Reporter: Piotr Przybylski
>            Assignee: Piotr Przybylski
>            Priority: Major
>              Labels: pull-request-available
>
> Update included SLF4J dependency from 1.7.36 to current SLF4J 2.x version.
> This will make it easier to use Flink in projects that have it as its 
> dependency. More and more libraries migrate to SLF4J 2 and at some point some 
> library may be impossible to use with the old SLF4J that Flink provides.
> It also unblocks the use of Logback versions released after December 2023 
> (1.3 and newer).
> This is a simple dependency update, and a replacement of Log4J binding from 
> log4j-slf4j-impl to log4j-slf4j2-impl.
> Please assign this to me, I already have a draft PR available at 
> [https://github.com/apache/flink/pull/29120].



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