[jbpm-dev] jbpm 6 released ?

Hello, I am in charge to investigate new JBPM and Drools 6 status. I should say that I'm kind confuse. Looking at maven central, already have 6.0.0.Final artifacts: http://search.maven.org/#artifactdetails%7Corg.jbpm%7Cjbpm%7C6.0.0.Final%... But looking at http://www.jboss.org/jbpm/ there are any reference to 6.0.0 ! looking at jira here (https://issues.jboss.org/browse/JBPM) I could see the 6.0.0.Final was release, but there are 3 different versions:jBPM 6.1.0.Final, jBPM 6.0.1.Final and jBPM 6.x !!! could someone explain me that ? which version should I track in jira? which source branch is the one that I should clone if I need to see the examples? thanks, John.