I\'ve created a versioned Core Data model in my iOS app, and it has several versions created so far (several .xdatamodel files within the .xcdatamodeld bundle). Before shipp
Deleting the old models means you cannot migrate any existing data stores. I assume you're ok with that given your statement about data loss. If you want to start fresh, you can take the current xcdatamodel, copy it somewhere else (e.g. your Desktop), then delete the xcdatamodeld folder. At this point, you can drag your saved xcdatamodel back into Xcode and re-add it as a non-versioned file.
If you want to get rid of old versions of the data model
(Note: make sure you copy the Data model file and save it somewhere in case something goes wrong)
Five Step solution
Voila it's done