[logback-user] Release of logback version 1.3.0-alpha10

Ceki Gülcü ceki at qos.ch
Mon Aug 23 16:38:31 CEST 2021

Hello all,

I am happy to announce the release of logback version 1.3.0-alpha10,
the best performing logback yet. It requires slf4j-api version
2.0.0-alpha4 or later.

For benchmarking figures please see:


This version supports the fluent-API introduced in SLF4J
2.0.x. It also supports Jigsaw/Java9 modularization.

Joran, logback's configuration system, has been rewritten to use
an internal representation model which can be processed
separately. Given the breadth of the changes, support for
SiftingAppender and Groovy configuration have been dropped

No new features are available in this version. Future releases
will gradually introduce new features made possible by Joran
representation model.

The 1.3.x series requires Java 8 at runtime. If you wish to build
logback from source, you will need Java 9.

Please refer to the news page for precise details.


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Ceki Gülcü

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