Description of problem: $ yum history undo last works. But $ yum history info last doesn't work, you have to list the history first and then specify the number. That is unnecessarilly complicated. Please make $ yum history info last work as well. Thanks. Version-Release number of selected component (if applicable): yum-3.4.3-28.fc17.noarch
We don't allow "last" in info because info takes package names as arguments as well ... and there can be a last package name. However "yum history info" shows the last entry.