one of our published Apps was first written in C++, but we have reprogrammed it in JS. So is there a possibility to release the new JS App under the same name and use the data / database of the old c++ app?

So could a user do a normal update process of the app and first it was c++ and then it switches to js through the app store update prozess. Or have we to release a new App with a new App Name like myAppsAppName2, when it was first myAppsAppName?