Close All Issues Easily

A project lead here recently asked me if there was a way to close all issues in a version that she had recently released without having to close each issue individually. While I did show her how to create a filter to view all of the issues that were not closed, she still had to go through each one individually.

Is there a better way to do that or could there be? We're using 2.3 Pro, although I took a brief look at 2.4 pro and I wasn't able to find a simple solution.

Thanks.