What’s New In Kotlin 1.7.20?

On 29/09/2022 Kotlin 1.7.20 was released. Kotlin is a popular programming language for backend and Android development.

The new compiler is closer and closer to becoming the new default!

6 Compiler Plug-ins Now Work With K2 Compiler

With the new version progress is made to move newly introduced K2 compiler out from the alpha stage.

On the road to phase out standard compiler, K2 now supports several compiler plug-ins, namely:

• all-open

Used to annotate classes and their members open for frameworks and libraries.

• no-arg

Synthetic, zero argument constructor generator.

• SAM with receiver

Converter of a Java SAM’s first parameter into a receiver.

• Lombok

Makes it possible to mix with Java Lombok declarations.

• AtomicFU

Atomic operation library.

• jvm-abi-gen

ABI class generator.

To enable K2 compiler just pass this argument: