I am suddenly getting a bunch of warnings on iOS12/XCode 9. Why are there multiple managedObjectModels ? The app only has one *.xcdatamodeld file but there are multiple versions within the model. ...

I'm looking to speed up queries to my SQL backed CoreData instance (displaying records sorted by date). I know that indexing can help decrease query time, but what's the difference between: Highli...

I'm trying to migrate a specific part of one of my apps into a framework so that I can use it in my app itself and in one of those fancy new iOS 8 widgets. This part is the one that handles all my ...