Do i need to rebuy the core data book for the updated book?

Ive bought the book before and would like to refresh myself on some topics but in swift 3 and the new frameworks.

@kgnadinger Thanks very much for your question. If you bought the book from us already, then you should have an account with us, and you are entitled to lifetime updates to the book!

Let us know if you are still having trouble!

@syedfa is right here - you can actually download the book’s updated version if you have already bought it after all over here:

Thank you! :]