"Elements of Kotlin" Version 0.4 Released

Subscribers now have access to Version 0.4 of Elements of Kotlin, in PDF, EPUB, and MOBI/Kindle formats. Just log into your Warescription page to download it, or set up an account and subscribe!

There are a few new “Kotlin, WTF?” short chapters, on:

• Covariance and contravariance in generics

• Local functions

• Reified type parameters

• and Nothing

And, as usual, there were several bug fixes.