title: WIll "helm upgrade" restart PODS even if they are not affected by upgrade?
body: <p>My helm chart has some 12 PODS. When I did <code>helm upgrade</code> after changing some values all the PODs are restarted except for one.</p>
  
  <p><strong>My question is</strong>:  </p>
  
  <p>Will <code>helm upgrade</code> restart the PODS even if they are not affected by upgrade?</p>
  
  <p><strong>Putting it in another way</strong>: </p>
  
  <p>Is it <code>helm upgrade</code> restart PODs only if they are affected by upgrade?</p>