title: Google play store not showing update option for new apk
body: <p>I have my app installed in my cell with version 1.0.3 ( Version code 1)  In Google Play Store, I can see my app with version 2.0.1 ( Version code 2 ), but it doesn't show me the button update ( it is showing me the button "Open")  Is it something I have to include in my app???  Is it a bug in Play Store???  Is it a configuration problem??? </p>