Android version code for App updating
<p>I read that if we want to update an app in google play, the version Code should be higher than the previous apk file. I've an app with version code: 20 and version name 1.0. So to update the app, how should I increase the version code? Should it increase by 10? or just 1 is enough? ie, version code from 20 to 30 or version code from 20 to 21?</p>