How to make your Android app auto update

Question

I published my first app in Google Play today, woot! Once I saw my app listed in Google Play, I realized I needed to make a change and post an update.

I made my code ch

Answer 1

You must always increment the version code when updating an app on Google Play. Your update will not be accepted unless you do.

As for your update not showing up, Google Play takes time to refresh it's servers. My updates have sometimes taken more than 24 hours to be pushed to the device, while new installers get the latest version withing 2 hours usually.