title: App signing of existing APK, what about SHA1 keys?
body: <p>When we migrate the app which uses Firebase, Adjust, Fabric and Insider to App Signing and App Bundle, should we update our SDK SHA1 keys or not? I am confused about these and I can't find answer of these.</p>
  
  <p>Fabric is not using aab right now. How can we workaround that kind of situations?</p>