latest jar file versionslatest

Not 100% sure what you're looking for here, but if you want the latest versions of a particular jar, you can use the Dependency Finder from the Felix console:

http://labs.sixdimensions.com/blog/2012-05-04/new-cq-55-dependency-finder/

For whatever reason in 5.6.1, it was renamed to 'Packages' from the Main dropdown.

If you're looking for a more complete list of everything, this may be more what you're looking for:

http://repo.adobe.com/nexus/content/groups/public/com/day/cq/cq-quickstart-product-dependencies/5.6.1/cq-quickstart-product-dependencies-5.6.1.pom