Kotlin

A concise multiplatform language developed by JetBrains

Follow:
X
RSS

Visit the Kotlin Site

All
News
Releases
Multiplatform
Ecosystem

News

Kodee’s Kotlin Roundup: Golden Kodee Finalists, Kotlin 2.4.0-Beta2, and New Learning Resources

Kodee

Hi everyone! April brought exciting community news with the announcement of the Golden Kodee finalists, along with Kotlin and tooling releases, multiplatform progress, and fresh backend resources. I also came across the new Kotlin Professional Certificate on LinkedIn Learning, which is a great way to build your skills. And if you want something more playful, I found a fun way to practice coroutines. Here are the stories that stood out to me most.

Kodee-Approved Spotlight

KotlinConf 2026 is almost here

KotlinConf 2026 is just around the corner, and the excitement is definitely building. On May 20–22, more than 2,000 Kotlin developers from around the world will gather in Munich to share ideas, learn from each other, and connect. If you cannot make it in person, you can still join online – the conference will be livestreamed on the Kotlin YouTube channel. I’ll be there in Munich, but I definitely recommend tuning in to catch the key announcements and talks as they happen.

Join KotlinConf

Golden Kodee finalists

The Golden Kodee finalists have been announced! The top three nominees in each category will be invited to KotlinConf in Munich, where one winner in each category will receive a Golden Kodee award. It is a great way to celebrate people who share knowledge, organize events, inspire others, and help grow the Kotlin community.

Meet the finalists

Kotlin release updates

April brought two Kotlin release updates. Kotlin 2.4.0-Beta2 offers an early look at what’s coming next across the language, the standard library, the JVM, Kotlin/Native, and the compiler. Kotlin 2.3.21 focuses on performance improvements and bug fixes for the 2.3 release.

See what’s new in Kotlin 2.4.0-Beta2

IntelliJ IDEA 2026.1

IntelliJ IDEA 2026.1 brings improvements that many Kotlin developers will notice in their daily work. From general performance enhancements to better language and framework support, this release is a strong ecosystem update and an important part of the Kotlin developer experience.

Explore the release

Helping Decision-Makers Say Yes to Kotlin Multiplatform (KMP)

Adopting Kotlin Multiplatform is easier when the business value is clear. I found this guest post from Touchlab useful because it explains how KMP can improve delivery speed, reduce risk, and support long-term product strategy.

Read the post

KotlinConf’26 Speakers: In Conversation With Lena Reinhard

Ahead of KotlinConf’26, I found this interview with Lena Reinhard interesting because it explores what it means to build a career in tech today, especially when old promises no longer feel certain. It covers leadership, uncertainty, the productivity debate in the age of AI, and the human side of our industry.

Read the interview

Kotlin Professional Certificate by JetBrains – Now on LinkedIn Learning

Kotlin Professional Certificate by JetBrains on LinkedIn Learning

Looking to build your Kotlin skills? The Kotlin Professional Certificate by JetBrains is now available on LinkedIn Learning. In less than 12 hours, you can go through four courses, pass the final exam, and earn a certificate you can share on your LinkedIn profile.

Start learning

Koog updates for the JVM ecosystem

Koog had a busy month, and I found these two updates useful for JVM developers. First, Koog now offers an idiomatic Java API, making it easier for Java teams to build agent workflows. Second, Koog integrates with Spring AI, helping Kotlin and Spring-based projects use Koog in a familiar setup.

Explore Koog’s Java API

Kotlin + WebAssembly: `wasi:http` sample

I like this sample because it shows how to run a minimal HTTP server with Kotlin and WebAssembly using `wasi:http`. It highlights practical progress in Kotlin’s WebAssembly story and future backend possibilities.

See the sample

Amper 0.10.0

Amper keeps evolving quickly, and this update brings several useful improvements. Version 0.10.0 introduces automatic JDK provisioning, a Maven-to-Amper converter, support for custom Kotlin compiler plugins, and an improved IDE experience.

See what’s new in Amper 0.10.0

Spring Data JPA with Kotlin

I found this practical post worthwhile because it shows how Spring Data JPA works with Kotlin across entities, repositories, custom queries, and DTOs. It is useful for teams already using Spring.

Read the post

Spring guide: Uploading Files

This guide is helpful if you want to compare Kotlin and Java side by side. It makes it easier to see how Kotlin fits into existing backend workflows.

View the guide

Coroutines Guesser Game

Created by kt.academy, Coroutines Races Guesser Game offers an interactive approach to learning coroutine behavior by predicting what happens and when. It is a fun way to test your intuition.

Play the game

Where you can learn more

Workshops – KotlinConf 2026, May 20–22, Munich
Introducing the Skill Manager and Skill Repository
Give AI Something Worth Amplifying: Three Priorities for Technical Leaders
Using ACP + Deep Agents to Demystify Modern Software Engineering
Prototype LLM calls on the JVM using Kotlin Notebook and LangChain4j in IntelliJ IDEA
Next-Level Observability with OpenTelemetry
Exposed now supports array types out of the box for PostgreSQL
Using Spring Data JDBC With Kotlin
Ktor 3.4.3 has been released
Dokka 2.2.0 is o u t

YouTube highlights

How KMP Helped a 378-Year-Old Company
How Uber Uses AI to Move from Java to Kotlin
Exposed 1.0 and Beyond | Talking Kotlin
Best KMP libraries with Klibs.io

Kotlin Roundup News

Share
Twitter

Next-Level Observability with OpenTelemetry

Subscribe to Kotlin Blog updates

Subscribe form

By submitting this form, I agree to the JetBrains Privacy Policy

By submitting this form, I agree that JetBrains s.r.o. ("JetBrains") may use my name, email address, and location data to send me newsletters, including commercial communications, and to process my personal data for this purpose. I agree that JetBrains may process said data using third-party services for this purpose in accordance with the JetBrains Privacy Policy. I understand that I can revoke this consent at any time in my profile. In addition, an unsubscribe link is included in each email.

Thanks, we've got you!

Discover more

Next-Level Observability with OpenTelemetry

Learn how to use OpenTelemetry with Kotlin and Spring Boot, and explore the GitHub demo project to see trace IDs in action.

Alina Dolgikh

Kotlin Professional Certificate by JetBrains – Now on LinkedIn Learning

JetBrains has partnered with LinkedIn Learning to offer the Kotlin Professional Certificate. This is a structured learning path that covers the full scope of modern software development – from Kotlin essentials all the way to building full-stack, multiplatform applications for mobile, desktop, web, and backend environments.

Ksenia Shneyveys

KotlinConf’26 Speakers: In Conversation With Lena Reinhard

KotlinConf’26 Day 2 keynote speaker Lena Reinhard shares insights on AI, leadership, and navigating uncertainty in today’s tech landscape.

Daria Voronina

Kodee’s Kotlin Roundup: Kotlin 2.3.20, Interview With Josh Long, and More

KotlinConf 2026 is taking shape. Catch the latest updates, new Kotlin releases, ecosystem tools, and real-world stories from teams using Kotlin.

Kodee