The Daily Kotlin

After the release of Kotlin 2.0 and the new K2 compiler, the Kotlin team at JetBrains has now focused its efforts firmly on improving the language with new features. In this livestream, we're excited to announce several updates in Kotlin 2.1:

Non-local…

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1.88K viewsRuslan Ibragimov, 16:01

The Daily Kotlin

The journey of providing Kotlin bindings for GitHub Actions

Article about https://github.com/typesafegithub/github-workflows-kt project

JVM Advent

The journey of providing Kotlin bindings for GitHub Actions - JVM Advent

Hand-crafting Kotlin bindings is a no-go if we want to provide them at scale. Read the fascinating story of iteration, trial and error.

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1.54K viewsRuslan Ibragimov, 08:54

The Daily Kotlin

Ktor 3.0.2

A patch release addressing multiple bug fixes related to response corruption, truncated bodies, connection handling, and incorrect headers, along with extended binary encoding support and performance enhancements for Android.

GitHub

Release 3.0.2 · ktorio/ktor

Published 3 December 2024

Bugfixes

ServletResponseBody is corrupted due to the wrong offset (KTOR-7904)
File is not commited after closing writeChannel() of the file (KTOR-7845)
CIO: Response bod...

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2.07K viewsRuslan Ibragimov, 09:39

The Daily Kotlin

@kotlin_lang is 8 years old today!

The first message was written on December 14, 2016.

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1.7K viewsRuslan Ibragimov, 21:27

The Daily Kotlin

Dokka 2.0.0

Lot of changes, experimental K2 mode

GitHub

Release 2.0.0 · Kotlin/dokka

Dokka 2.0.0 focuses on simplifying configuration and preparing for support of future Kotlin language features. Key highlights include:

Dokka Gradle Plugin v2: revamped Gradle plugin based on Dokka...

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1.68K viewsRuslan Ibragimov, 14:48

The Daily Kotlin

Kotlin SDK for Model Context Protocol (server and client)

Now you can provide (or consume) context from your application to LLM using standard protocol.

GitHub

GitHub - modelcontextprotocol/kotlin-sdk: The official Kotlin SDK for Model Context Protocol servers and clients. Maintained in…

The official Kotlin SDK for Model Context Protocol servers and clients. Maintained in collaboration with JetBrains - modelcontextprotocol/kotlin-sdk

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1.65K viewsRuslan Ibragimov, 20:41

The Daily Kotlin

Ktor 3.0.3

GitHub

Release 3.0.3 · ktorio/ktor

Published 18 December 2024

Bugfixes

"Module not found" errors when executing browserProductionWebpack task since 3.0.2 (KTOR-7912)
Darwin: "IllegalStateException: Content-Length mi...

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1.72K viewsRuslan Ibragimov, 05:56

The Daily Kotlin

Kotlinx Coroutines 1.10.0

GitHub

Release 1.10.0 · Kotlin/kotlinx.coroutines

Kotlin was updated to 2.1.0 (#4284).
Introduced Flow.any, Flow.all, and Flow.none (#4212). Thanks, @CLOVIS-AI!
Reorganized kotlinx-coroutines-debug and kotlinx-coroutines-core code to avoid a split...

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1.8K viewsRuslan Ibragimov, 05:59

The Daily Kotlin

Kotlin 2.1.20-Beta1

This version includes context parameters under the flag -Xcontext-parameters, but there is no IDE support (K2 Mode) in the current stable version of IntelliJ IDEA.


context(userContext: UserContext)
fun testUserInfo() {
    println("Hello, world! I'm ${userContext.user.id}!")
}

Additionally, context receivers still function in 2.1.20-Beta1 (even though I previously wrote that they wouldn’t).

Also:

- Kotlin K2 compiler: new default kapt plugin
- Gradle: support for version 8.11

https://kotlinlang.org/docs/whatsnew-eap.html
https://github.com/JetBrains/kotlin/releases/tag/v2.1.20-Beta1

The Daily Kotlin

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.jet…

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2.48K viewsRuslan Ibragimov, 07:33

The Daily Kotlin

Kotlin 2.1.10-RC

It seems that this release includes only bug fixes

https://github.com/JetBrains/kotlin/releases/tag/v2.1.10-RC

GitHub

Release Kotlin 2.1.10-RC · JetBrains/kotlin

Changelog
Compiler

KT-73454 K2: Fix type parameters mapping for typealiases with inner RHS
KT-73043 K2 Compiler does not allow references to inner constructors with typealiases
KT-73339 K2: "...

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2.18K viewsRuslan Ibragimov, 14:12

The Daily Kotlin

kotlinx.html 0.12.0

- Kotlin 2.0.21

https://github.com/Kotlin/kotlinx.html/releases/tag/0.12.0

GitHub

Release 0.12.0 · Kotlin/kotlinx.html

What's Changed

Added HTML templates by @e5l in #255
Replace usage js with WasmJs in README.md by @e5l in #257
Improve Gradle build logic by @hfhbd in #258
Use kotlin.test everywhere by @hfhbd ...

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2.28K viewsRuslan Ibragimov, 12:58

The Daily Kotlin

Kotlin 2.1.10

It seems that this release includes only bug fixes

https://github.com/JetBrains/kotlin/releases/tag/v2.1.10

GitHub

Release Kotlin 2.1.10 · JetBrains/kotlin

Changelog
Compiler

KT-73858 Compose / iOS: NullPointerException on building
KT-73454 K2: Fix type parameters mapping for typealiases with inner RHS
KT-73043 K2 Compiler does not allow references ...

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2.01K viewsRuslan Ibragimov, 12:01

The Daily Kotlin

Ktor 3.1.0 Release

Ktor has been released with multiple improvements, and even I contributed a tiny MR that adds a content type for YAML.

Blog
Github

The JetBrains Blog

Ktor 3.1.0 Release | The Kotlin Blog

Ktor 3.1.0 is here! It introduces exciting new features, performance improvements, and bug fixes.

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1.74K viewsRuslan Ibragimov, 07:51

The Daily Kotlin

OpenAI vs. DeepSeek: Which AI Understands Kotlin Better?


Generators                   Average assessment
DeepSeek-R1                  8.79
OpenAI o3-mini               8.70
OpenAI o1                    8.62
OpenAI o1-preview            8.60
OpenAI o1-mini               8.40
OpenAI GPT-4o (11.20.2024)   8.40
Anthropic Claude 3.5 Sonnet  8.38

The JetBrains Blog

OpenAI vs. DeepSeek: Which AI Understands Kotlin Better? | The Kotlin Blog

Which AI model understands Kotlin best? We tested DeepSeek-R1, several OpenAI models, and more using Kotlin-specific benchmarks. See how they compare in our analysis.

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1.91K viewsRuslan Ibragimov, edited 15:40

The Daily Kotlin

Ktor 3.1.1 bug fix release

https://github.com/ktorio/ktor/releases/tag/3.1.1

GitHub

Release 3.1.1 · ktorio/ktor

Published 24 February 2025

Improvements

Logging: messages are printed per line with OkHttp logger format (KTOR-8218)
WebSocket and SSE don't respect connection timeout set in the HttpTimeout ...

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1.8K viewsRuslan Ibragimov, 14:30