title: When should I change the tlib-version of my tag library?
body: <p>I'm after guidelines on when I should change the <code>tlib-version</code> in the <code>.tld</code> of a tag library that I author.</p>
  
  <p>Specifically I'm wondering if I should bump the version number if I add new tags to the library or if I should only do this if I make breaking changes to existing tags?</p>