title: When download via aab, does it download only changes?
body: <p>as i know, the &quot;<strong>Incremental Build</strong>&quot; is that builds only the change points by comparing the past and the present.</p>
  <p>Android AAB is also modularized, so I think there is a similar system.</p>
  <p>When I get the latest update from PlayStore,
  I wonder it download whole files, Or only changes between <strong>Local version and Lastest version</strong>.</p>