I have implemented recently launched In-App update API in my android app. When I build apk and test this functionality it works fine. ( I have uploaded apk with higher versi
In-App updates are not yet supported with internal app sharing.
We are working on this, but do not yet have a timeframe for completion of this feature.
Update: Internal App sharing now supports testing In-app updates.
By visiting an Internal App Sharing link with a higher version code (but not installing it yet), an app that you already installed through Internal app sharing 'learns' of the new version, which allows you to test the in-app update flow.