1. 2011-10-31 [1] [slf4j-dev] Release of SLF4J version 1.6.4 slf4j-dev ceki 2. 2011-10-31 [14] [slf4j-dev] [GIT] SLF4J: Simple Logging Facade for Java branch slf4j-dev Gitbot 3. 2011-10-18 [7] [slf4j-dev] Release of SLF4J version 1.6.3 slf4j-dev ceki