3.0.x is going to EoS end of this month. All other newer releases are still being supported (no EoS announced yet). You can find out the lifecycle of all IBM products in the below web page.
http://www-01.ibm.com/software/support/lifecycle/index_a_z.html
Dashboards and work items are no longer publicly available, so some links may be invalid. We now provide similar information through other means.
Learn more here.
