title: How to get a diff of changes between DefinitelyTyped @types package versions?
body: <p>On npmjs.com I can see what versions exist for @types/... packages.</p>
  <p>At github.com/DefinitelyTyped/DefinitelyTyped I can get the source code corresponding to those packages.</p>
  <p>microsoft.github.io/TypeSearch links to the npmjs.com page.</p>
  <p>However, I couldn't find a mapping between versions and commit hashes.</p>
  <p>Where can I find those or where can I get a code diff between two versions?
  Or maybe a change log?</p>