Hello everybody, In SLF4J-531 <https://jira.qos.ch/browse/SLF4J-531> Ceki added support for an MDC containing stack values in SLF4J 2.0. Since some servlet containers like Jetty are already distributing alpha versions of SLF4J 2.0, I started implementing the new SLF4J 2.0 in the `slf4j-2.0` branch of the repository.
Personally I am not convinced that introducing a second stack valued MDC has many applications and I believe that Ralph shares my opinion. Therefore I would propose to implement it using the currently available MDC (cf. PR #820 <https://github.com/apache/logging-log4j2/pull/820>). What do you think about it? Another idea might be to extend the current MDC to allow object values. That is what is already available in JBoss Log Manager. Piotr