1. 2013-03-25 [2] [qos.ch-announce] Release of SLF4J version 1.7.3 logback-ann QOS.ch annouceme 2. 2013-03-25 [2] [qos.ch-announce] Release of logback version 1.0.9 logback-ann QOS.ch annouceme 3. 2013-03-14 [1] [qos.ch-announce] Release of CAL10N v0.7.6 logback-ann QOS.ch annouceme