How does one determine what is the correct version of jackrabbit-standalone***.jar for CQ 5.6.1 (I am currently working on) and for CQ 6.1 (will be upgrading to very soon).
jackrabbit-standalone is used to run a standalone JCR. It wouldn't be typical to use this with AEM because you are generally going to be using the JCR bootstrap by AEM. Can you explain what you are trying to accomplish?