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Kotlin roadmap

Last modified on	July 2023
Next update	December 2023

Welcome to the Kotlin roadmap! Get a sneak peek into the priorities of the Kotlin Team.

Key priorities

The goal of this roadmap is to give you a big picture. Here's a list of our key projects – the most important things we focus on delivering:

K2 compiler: a rewrite of the Kotlin compiler optimized for speed, parallelism, and unification. It will also let us introduce many anticipated language features.
K2-based IntelliJ plugin: much faster code completion, highlighting, and search, together with more stable code analysis.
Kotlin Multiplatform: promote the technology to Stable by improving the toolchain stability and documentation, and ensuring compatibility guarantees.
Experience of library authors: a set of documentation and tools helping to set up, develop, and publish Kotlin libraries.

Kotlin roadmap by subsystem

To view the biggest projects we're working on, visit the YouTrack board or the Roadmap details table.

If you have any questions or feedback about the roadmap or the items on it, feel free to post them to YouTrack tickets or in the #kotlin-roadmap channel of Kotlin Slack (request an invite).

YouTrack board

Visit the roadmap board in our issue tracker YouTrack

Roadmap details

Subsystem	In focus now
Language	List of all upcoming language features
Compiler	🆕 Promote K2 compiler to Stable 🆕 Support debugging inline functions on Android 🆕 Promote Kotlin/Wasm to Alpha 🆕 Make Kotlin/Wasm suitable for standalone Wasm VMs
Multiplatform	Promote Kotlin Multiplatform Mobile to Stable Improve the new Kotlin/Native memory manager robustness and performance and deprecate the old one Stabilize klib: make binary compatibility easier for library authors Improve exporting Kotlin code to Objective-C Improve Kotlin/Native compilation time
Tooling	🆕 Improve Kotlin build reports First public release of K2-based IntelliJ plugin Improve performance and code analysis stability of the current IDE plugin Expose stable compiler arguments in Gradle DSL Improve Kotlin scripting and experience with `.gradle.kts`
Library ecosystem	🆕 Provide initial series of `kotlinx-io` releases Release `kotlinx-metadata-jvm` as Stable Promote `kotlinx-kover` to Stable Release Dokka as Stable The Ktor framework roadmap

What's changed since December 2022

Completed items

We've completed the following items from the previous roadmap:

✅ Language: Introduce special syntax for until operator
✅ Language: Provide modern and performant replacement for Enum.values()
✅ Language: Design and implement a solution for toString, equals and hashCode on objects (data object)
✅ Compiler: Release K2 Beta
✅ Compiler: Fix issues related to inline classes on the JVM
✅ Compiler: Implement an experimental version of Kotlin/Wasm compiler backend
✅ Tooling: Provide better experience with Kotlin Daemon
✅ Tooling: Improve the performance of Gradle incremental compilation
✅ Tooling: Release the Experimental version of the Kotlin Notebooks IJ IDEA plugin
✅ Library ecosystem: Release kotlinx-coroutines 1.7
✅ Library ecosystem: Improve kotlinx-datetime library
✅ Library ecosystem: Continue to develop and stabilize the standard library

New items

We've added the following items to the roadmap:

🆕 Compiler: Release Kotlin 2.0
🆕 Compiler: Support debugging inline functions on Android
🆕 Compiler: Promote Kotlin/Wasm to Alpha
🆕 Compiler: Make Kotlin/Wasm suitable for standalone Wasm VMs (without JavaScript support)
🆕 Tooling: Improve Kotlin build reports
🆕 Library ecosystem: Provide initial series of kotlinx-io releases

Removed items

We've removed the following items from the roadmap:

❌ Language: Support non-local break and continue
❌ Compiler: Stabilize JVM-specific experimental features
❌ Library ecosystem: Stabilize and document atomicfu
❌ Library ecosystem: Improve KDoc experience
❌ Library ecosystem: Provide a Kotlin API guide for libraries authors

Items in progress

All other previously identified roadmap items are in progress. You can check their YouTrack tickets for updates.

Last modified: 20 July 2023

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/docs/roadmap.html