Hi,
We will be updating the name as well as the logo of our app on app store. Could you please suggest if there is any procedure that apple needs to be done prior to the same?
Changing app Icon
To change the logo, you have to change them in the app in XCode.
Then you archive a new build.
When you submit a new version of the app, you can change the version number, the app name. And including the build will change the icon.