title: Save Core Data?
body: <p>I have a functional app that is largely database oriented. My client is currently using the app and it has lots of pre-existing saved data (note: it is all local, not saved on an online database). Problem is, I know when I update my data model, I will have to uninstall, then reinstall the application because otherwise it will crash due to inconsistencies in the data model. Is there any way to save the data there while still updating my data model?</p>