On App update custom plist file will get updated or do we need to do some thing?

On App update custom plist file will get updated or do we need to do some
thing?

I have an app in appstore now im going to push out an update of app, Im
having a custom Plist file with set of values in my application bundle,
and these values are been modified from the version which is in production
and in addition even more key value pairs are added in to this file.
Now my doubt is on updating this app to appStore will the update process
automatically overrides(updates) my new plist file on top of existing one
or do we need to do some work around like how we do for database changes
like coredata migration and all?