KotlinConf 2024 talks

https://kotlinconf.com/talks/

Kotlin 2.0.10-RC (Bugfixes for 2.0.0)

https://github.com/JetBrains/kotlin/releases/tag/v2.0.10-RC

KotlinConf 2025!

https://kotlinconf.com/registration/

See you there ;)

Kotlin 2.0.10

https://github.com/JetBrains/kotlin/releases/tag/v2.0.10

Kotlin 2.0.20-RC Released

The Kotlin 2.0.20-RC brings a range of new features, enhancements, and deprecations as Kotlin continues to evolve toward the full 2.0 release. Key updates include:

- Data Class Copy Function Visibility: The .copy() function in data classes will now have the same visibility as the constructor, with migration warnings introduced.
- Context Receivers: Gradual deprecation of context receivers, which will be replaced by context parameters in future releases.
- Kotlin Multiplatform: Static accessors for source sets are now available, improving IDE experience and usability.
- Kotlin/Native: Experimental support for concurrent marking in the garbage collector, aimed at reducing GC pause times.
- Kotlin/Wasm: Migration from default to named exports, with warnings now upgraded to errors.
- Compose Compiler: Various improvements, including the default enablement of strong skipping mode for better performance and stability.

GitHub Changelog
Kotlinlang.org: What's new in Kotlin 2.0.20-RC

Context Receivers → Context Parameters migration plan:

Kotlin 2.0.20 – new warning in build introduced: CONTEXT_RECEIVERS_DEPRECATED, with -Werror we have to manually suppress it for each file
Kotlin 2.1.0 – Disable warning globally https://youtrack.jetbrains.com/issue/KT-8087 freeCompilerArgs.add("-Xsuppress-warning=CONTEXT_RECEIVERS_DEPRECATED”)
Kotlin 2.1.20 – Removing Context Receivers from compiler
Kotlin 2.2.0 – Context Parameters introduced behind flag https://youtrack.jetbrains.com/issue/KT-67119

Plan for people heavily using Context Receivers, and don’t want to refactor out them completely:

1. Stay on Kotlin 2.0.1x until 2.1.0 released
2. Migrate to 2.1.0 up to 2.1.1x
2. Migrate to 2.2.0

Kotlin 2.0.20-RC2 Released with a bunch of fixes, try now!

Kotlin 2.0.20 Released!

• Data class copy function now matches constructor visibility.
• Static accessors for multiplatform source sets are introduced.
• Concurrent marking in Kotlin/Native’s GC is now possible.
• The @ExperimentalWasmDsl annotation location changed.
• Gradle 8.6–8.8 supported.
• Option to share JVM artifacts between projects as class files
• Compose compiler update.
• UUID support in the common Kotlin standard library.

Details
GitHub Changelog

🤔 https://www.youtube.com/watch?v=55NL0vnjjJg

I know you folks love surveys, this one about Kotlin:

Kotlin Developer Survey #3

Command-line tool for creating Ktor projects written in… Go 😂️️️️️️

https://www.youtube.com/watch?v=E8CtE7qTb-Q

1.5h documentary about Kotlin. Interviews with Kotlin team members

Kotlin Roadmap September Update

I’m very existed to see this item implemented:

🆕 Library ecosystem: Introduce default warnings/errors for Kotlin functions that return non-unit values that are unused

Kotlin 2.1.0-Beta1

2.1.0-Beta1 (click to copy version to test it)

I didn’t find anything too exciting, so here is the change log:

https://github.com/JetBrains/kotlin/releases/tag/v2.1.0-Beta1

What’s new in Kotlin 2.1.0-Beta1

https://kotlinlang.org/docs/whatsnew-eap.html

Koin 4.0 released

Koin 4.0 brings major updates with Kotlin 2.0.20 as a new baseline, focusing on Kotlin Multiplatform, Android, and Compose. Key improvements include true UUID generation across platforms, internal optimizations with better performance, a revamped ViewModel API now supporting multiplatform, and Compose lifecycle handling. The release also introduces the experimental “Koin-Fu” project to rethink the DSL and AndroidX Startup support for faster app loading. Deprecated APIs have been removed or replaced for a cleaner experience.

Just be aware of funky Koin defaults