1. 2021-07-28 [2] [qos.ch-announce] Release of logback version 1.2.4 slf4j-annou QOS.ch annouceme 2. 2021-07-02 [1] [qos.ch-announce] Release of SLF4J version 2.0.0-alpha2 slf4j-annou QOS.ch annouceme