Currently, I am working on an Android app which has already published on the app store. Now I want to publish app update with some extra features but the problem is now I don't have the previously signed keystore file.
Is there any way to publish app update without having previously signed keystore file?
If you've lost your keystore you'll have to publish the app with a new package name and a new key.
You should also update the description of the original app and unpublish it. Please note that users are allowed unlimited reinstalls of each application distributed via Google Play, an application will remain available to users that have already installed it even after it has been unpublished.
Currently we do not support the deletion of apps or the re-use of package names. Unfortunately, there is nothing else we can do to assist you further with this matter.
For new apps, Google can generate your app signing key. Google uses to authenticate your identity.
you can Contact google support team
Make sure to attach the upload_certificate.pem file.
hope this helps.