Board Thread:Support Requests - Getting Technical/@comment-4189499-20130620114755/@comment-1158325-20130623073527

Yeah, that's impossible to do automatically unless you use revision information, which would be inaccurate if the page is edited after being tagged. You could write a script that goes through the page history and finds the most recent revision where the template is used, but that probably wouldn't be worth it. Easiest just to make it an optional parameter, and in the template documentation include a version filled out with the #time substitution.