🚨NewVideo - Kubernetes Made Easy. Deploy. Monitor. Debug. All from IntelliJ IDEA youtube.com/watch?v=Y8M7... You can connect & interact with Kubernetes cluster from IntelliJIDEA 👉 Explore kubernetes cluster resources 👉 Port forwarding 👉 SSH into pod containers 👉 Remote Debugging Spring Boot app

Welcome the Kotlin Toolchain! #KotlinConf

Koog 1.0 available today! #KotlinConf

OpenRewrite now has a Kotlin DSL for recipe authoring. Declare a before/after pattern, get a generated recipe at compile time. No annotations, no template class, no reflection. Migration, performance fusions, and Android deprecation patterns all ship on day one. Full breakdown:

If you’re at @kotlinconf.com the next couple of days, come and say hi to the Language Evolution team! We have a booth dedicated to new and upcoming language features, and would love to know what you miss in @kotlinlang.org.

"Today, I'm open-sourcing my life's work and magnum opus: ShipReq ... a SaaS/webapp for storing and managing project requirements, tasks, and issues." #Scala #ScalaJS #FP gist.github.com/japgo...

This is a heavy story about a brilliant Scala developer who put his life into his work. 💔 After many health and personal problems, he open-sourced his project for everyone. Let's help him find a new job or support his work! 🙏 #scala gist.github.com/japgolly/538...

Koog workshop @kotlinconf.com is packed! Learning about how to build scalable agents together in @kotlinlang.org If you were not able to attend make sure to check @vadim-briliantov.bsky.social talk tomorrow!

On my way to @kotlinconf.com! 2 talks, a workshop, demos at the booth and more 🥵 Come say hi to talk about FP, Ktor, AI, … Need to do some work while travelling, so I made some extra food on Sunday to bring with me “for energy”. Fresh pizza 😋 Sorry for who sits next to me but I’ll share a slice.

Kotlin Agent Skills: github.com/Kotlin/kotli... #kotlin

🎈 TestBalloon reaches flight level 1.0.0 🎉 The Kotlin test framework built from the ground up for today's ecosystem is now stable, with a powerful and concise DSL-based API, robustness at scale and first-class support for all platforms. infix-de.github.io/testBalloon/... More at KotlinConf!

Happy to share that we have folks from the language design team blogging about new features! Check out this post by @serranofp.com about how Kotlin is moving to a safer, Name-Based Destructuring syntax: blog.jetbrains.com/kotlin/2026/...

Working with SQL in Kotlin? The latest episode of Talking Kotlin dives into Exposed, JetBrains’ Kotlin-first SQL library with type-safe DSLs, DAO and JDBC/R2DBC support, as well as Ktor + Spring Boot integrations. 👉 Watch it here: https://www.youtube.com/watch?v=5k-jh24CDZw

Kotlin Flows can throw exceptions... So how should you handle them? Does a regular try-catch work? In today's video, I show where you should (and shouldn't) use try-catch, and what you need to know about the `catch` operator. Watch the video here 👉 typea.li/as/yt2610

Not sure what’s happening inside your app? Observability isn’t just about adding more logs – it’s about making your system information easier to understand. Learn how OpenTelemetry helps you work with logs 👇 https://blog.jetbrains.com/kotlin/2026/04/next-level-observability-with-opentelemetry/

Excited! Tomorrow is @devoxx.uk, and I'm giving a talk on how to "Koog your own AI! Delicious recipe". For the first time in YEARS a lot of #Java code in my slides. So if you want to know how #Koog looks in Java come by, and see for yourself how it compares to #Kotlin😉 #devoxxuk

The CFP for #KotlinLeeds is about to close. I just submitted two sessions after an entire month of procrastination.. Make sure to send your CFP today in case you forgot! Hope to get accepted, and see you there. sessionize.com/swiftleeds-k...

Does anyone tell agents to use the --silent flag for Gradle? Gradle output is so noisy... wasting so much precious tokens. Is there any build tool out there tailored for agents yet? Or all we all wrapping them in a custom CLIs, and MCP servers?

🎉 Ktor 3.4.3 has been released! Check out the changelog for a full list of updates. https://kotl.in/5afkeh

If you want a quick introduction to JSpecify, check out this video: www.youtube.com/watch?v=z_IO...

📢 Kotlin 2.3.21 is here! This release brings performance improvements and bug fixes. Changelog: ➡️ github.com/JetBrains/ko...

Kotlin Weekly #507 has just been published! - mailchi.mp/kotlinweekly...

🎟️ Early bird tickets for KTConf 2026 are live! Belgium's Kotlin conference returns Fri Sept 18 at Museum M in Leuven. Talks, reception, dinner — €250. Grab yours before early bird runs out: ktconf.be/tickets/ #Kotlin #KotlinLang #KTConf

🔥 Exposed supports array types out of the box. No more workarounds for Postgres array columns! 👇 See how to use it in your backend: https://kotl.in/fysl5e

Have you tried name-based destructuring in Kotlin 2.3.20? In this clip from the recent TypeAlias Show, you can learn all about the three modes of this new experimental feature, and see how you can start using it (or migrating toward it!) in your own projects. www.youtube.com/watch?v=tvpB...

Next week Tuesday is the 2nd #BEKUG of this year! Hosted @DoubleVerify in Ghent. Pim Van Gurp is coming to talk about Type safe tax calculations in #kotlin. Super excited for another edition! See you there. www.meetup.com/belgian-kotl...

Soooo, next week's #BEKUG is going to be ABSOLUTE FIRE, because we have Pim van Gurp delivering his talk "TypeSafe Tax Calculations" at DoubleVerify's Ghent offices. Very hyped to see his talk and to see some new people join the community! #kotlin #meetup #openspace www.meetup.com/belgian-kotl...

It's superb to see the @jetbrains.com Koog 0.8 release adding Spring AI support: github.com/JetBrains/ko....

Nice! My talk at @amsterdam.voxxeddays.com is already out! www.youtube.com/watch?v=bgCl...

Spring Data JDBC brings out the best in #Kotlin. Constructor-based mapping keeps val fields truly immutable. Value classes map natively – no @Embedded, no extra setup. No proxies, no hidden state. Check it out 👇 jb.gg/agfdv4

Speaking at #SpringIO next week about our new #Koog + #SpringAI integration 📆 April 14th, 15:00, Track 3 If you are #Java or #Kotlin developer using #Spring and want enterprise-ready #AI agents — my session is for YOU! 👉 2026.springio.net/sessions/sup...

Stable Context Parameters dropping 🔥 Refactoring all my Kotlin repositories to have a context parameter Transaction to enforce transaction scopes at compile time in #Kotlin #Exposed

Dokka 2.2.0 release is out! This version focuses on improving the new Dokka Gradle Plugin and K2 analysis, as well as refining documentation behavior. Read the full release notes: github.com/Kotlin/dokka... Follow the thread below for the key highlights ⬇️

Now *this* is the developer experience we envision

OpenTelemetry accepts Kotlin SDK for mobile observability OpenTelemetry has officially accepted Embrace’s Kotlin API and SDK as a contribution to the project. The SDK provides observability suppo... #Infrastructure #cloud #native #CNCF #Kotlin #Kotlin […] [Original post on techzine.eu]

🪷 Needed to clear my cache today. The conference madness is coming. Found a spot near Reichenbachbrücke. Cold. Peaceful. Zero Jira tickets. Marking this location as 'Safe Mode' for when your social battery hits 1%.

KtMongo is looking really nice! If you're using MongoDB in #Kotlin you should give it a try. Considering using MongoDB in a side project just to give KtMongo a try 😄

The countdown to @devoxx.uk is officially in the "getting real" phase. From the latest in #Java & #CloudNative to the cutting edge of #AI agents, the vibes are going to be immaculate. Who are you most excited to see on stage? 👇 devoxx.co.uk

🔥 BREAKING 📰: Kotlin Wasm Component Model support to debut at #hyperlight-wasm workshop during #wasmio26 Don't miss! 2026.wasm.io/sessions/han... #Kotlin #Wasm #ComponentModel #HyperlightWasm

The @kotlinlang.org team has been working on some skills. There is one for migrating your project to AGP 9, done by my super-smart colleague Ilya. Check it out! github.com/Kotlin/kotli...

Good news from kotlinx-rpc! They now have a dev preview available where you can use gRPC with Kotlin Multiplatform! Check out the release notes and resources to try it:

2️⃣ Up to 30% size reduction of production distribution.

2 great improvements Kotlin 2.3.20 brings for #Wasm target users: 1️⃣ Optimizations that * significantly reduce memory consumption during compilation, especially in large projects. ~65% for clean builds and ~21% for incremental builds. * up to 5 times faster incremental builds

I started using #Gradle #MCP yesterday with my coding agents building #kotlin apps. It seems to be quite an improvement. It offers build history, so your agents can easily inspect/search the build without looping --rerun-tasks with tail, etc. Anyone encountered this? github.com/rnett/gradle...

This is... quite smol: @kotlinlang.org #webassembly component compiling down to 64KB.

Check out a sample server using wasi-http built with our early #WebAssembly Component Model support in @Kotlin! 🤩 github.com/Kotlin/sampl... Still early, but very satisfying to see it working ✨ Give it a spin and share what you build 🚀 #Wasm #Kotlin #ComponentModel 1/2👇

Kotlin/Wasm app < Rust 🤯🔥 This is why I’m so excited for Kotlin Wasm! Super curious what amazing things the team will do next! Amazing work 👏👏

The Exposed user survey is still open! If you’re using Exposed, tell us what you think – the good, the bad, and what’s missing. Your feedback will help shape the library’s future. 👉 https://surveys.jetbrains.com/s3/757c90830e4e

Challenging the flexibility of TestBalloon, the DSL-based, Kotlin-first test framework. How much freedom does its API really support? How far can we go if we want to change its look and feel? Join me on my dogfooding journey! infix-de.github.io/testBalloon/...