Building and submitting an update to your app is much easier than creating it for the first time. The following is a step-by-step guide to the process.
How to Update Your Android App in the Google Play Store
1. Log in into your mag+ Publish account and click on the "Apps" tab.
2. Change your Build Settings or other options as needed.
Each section of the Assets and Configuration area features a label indicating whether all the required information has been completed. If an area requires more configuration, or if a validity check fails, then the section will read "Incomplete" and you will not be allowed to create a new build.
When updating your Google Play app you will be required to change the version number and the version code to a higher number than the previous build (eg. change 1.0 to 1.1)(12345 to12346) within your Build Settings under the App Identifiers section.
4. In a few minutes, you can reload the page and see a new time-stamped link to a package containing your app file.
5. Test your updated app before submitting it to Google Play.
Note: For more information, please read the article "Android - Testing Your App Before Distribution."
6. Log in into the Google Play Developer Console <https://play.google.com/apps/publish/> and click on the app you want to update.Click on Production >> Create new Release.
Note: When submitting your app to Google Play there is now a review process. Your Android app should be reviewed and then visible in the Google Play store once approved by app approval team, provided there are no problems discovered.
The developer console no longer looks like this and it is very confusing to follow