xcode change bundle identifier to overwrite old app

Question

I have a old version of an app created by someone else with a different bundle id, I would like to update this so users who have downloaded it will get the new version of the app.

Would it just be a case of changing the bundle id in xcode and uploading it over the old app?

How would I do this in xcode, can I copy my project so I can rename it?

For future updates would I need to update two versions? could I link them somehow to avoid this?

Answer 1

If you will change the bundle identifier of the existing application, your application will not be overwritten to the existing users, it will be seen as a different application on app store.

For Application update to reflect into the existing application of existing users, you must use the same bundle identifier with the increased version number and other changes, if any.

Answer 2

在更新应用程序时，您唯一必须做的事情是增加捆绑包构建标识符和应用程序版本标识符，如果您更改了应用程序中用户应该知道的某些内容，那么您必须将其写在描述中，这很好去。