Google has detailed significant improvements that the Google Home team achieved just by rewriting the Google Home app in the modern programming language Kotlin. Google is encouraging all Android ...

Google releases Kotlin Symbol Processing to speed up Android app development.

In other words, new versions should not break code written for v1.0 or later. There are plenty of blog posts and official documentation that cover learning and using Kotlin.

Students will discover what Kotlin is, learn how it’s used in Android development, and find out how to build apps that are aesthetically pleasing.