Submit iOS apps update -

I plan to present an update to an app

However, new application updates to server Some data patching is required but I am unable to patch the data immediately, because existing users with older apps will face problems with new data.

Any ideas to solve this issue?

You need to retain old data almost indefinitely

lot For many reasons many users of the user will not update their app (no matter how much they like them.)

So for this time you should take new data in a different place (and reflect that new location in your app.) To ensure that the old users maintain connections with old data and New users can use new data.

In the future it may be wise when a new dataset and application is published and the user bothers to update, the work of your app stops.