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
Congratulations on your first app! It's a very exciting moment!
Yes, you increment your Version Code when you make an update to your app.
When you were testing your updated version, did you install the apk file onto your device? You might have updated it unknowingly. Google play will therefore detect that you have matching version codes with the app on your device and the app you uploaded and will not offer to update it.