Mojo 1.0 is here www.modular.com/blog/modular...
Modular: Modular 26.5: Mojo 1.0 is here!
Today, the Mojo language officially reaches 1.0: a milestone the language has been building toward since its first release in 2023. Mojo has grown into a general-purpose language with a vibrant develo...
modular.com
Kotlin turns 15 🎂 Thank you for being part of the journey. To mark the milestone, we're inviting the community to celebrate Kotlin's birthday. Create a birthday postcard, or upload your photo and party with Kodee. 🎉 Celebrate with us 🎉 https://kotl.in/effect-blog-bluesky
Kotlin Turns 15: Celebrate the Kotlin Effect - The JetBrains Blog
Kotlin turns 15! Create a birthday postcard, share your wish, and explore more ways to celebrate the Kotlin Effect with the community.
kotl.in
Something big might happen to the Kotlin Multiplatform Ecosystem 👀 We were never too happy about how Kotlin publishes and resolves KMP libraries. It takes up significantly more space than it has to, produces a ton of artifacts and Maven modules, and is just... complex!
Kotlin now has its own public benchmark for AI coding agents. 🚀 The Kotlin Benchmark ranks agents on 105 engineering tasks from open-source Kotlin repositories. Compare agents by resolution rate, token cost, and latency, and dive into the methodology. 👉 kotl.in/benchmark-bl...
🎉 Kotlin turns 15 this year! 🎉 As part of the celebration, we've brought the Kotlin Effect into real life – making everyday situations more concise, efficient, and fun. Watch on YouTube: https://kotl.in/u6nciz Explore the Kotlin Effect further: https://kotl.in/6xzc69
We just released the first stable version of iroh, v1.0! Read about it: www.iroh.computer/blog/v1 We're super proud of where we landed with iroh's 1.0. Since version 0.35 it feels like we've entirely replaced the "engine underneath". Are you a fellow key-dialer? Come tell us how you use iroh!
Iroh 1.0 - Dial Keys, not IPs
Iroh 1.0 is out. Now is the time to build.
iroh.computer
Adopting Kotlin Multiplatform was a calculated bet for Booking.com – and the results exceeded expectations. Discover how KMP improved cross-platform consistency and proved to be a viable long-term solution for the team. Read the full story 👇 https://kotl.in/x8k4zh
Kotlin Multiplatform in Production: Two Real-World Use Cases from Booking.com
KMP @ Booking.com
kotl.in
Today, I’m proud to announce Homebrew 6.0.0. Since 5.1.0: secure tap trusting, faster JSON API, Linux sandboxing, better defaults, brew bundle improvements, improved performance, initial macOS Golden Gate support.
Homebrew 6.0.0
Homebrew 6.0.0 has been released.
brew.sh
Podcast episode with a legend: @kelseyhightower.com (out now) Probably the best storyteller I’ve met - and what incredible stories he has! • YouTube: youtu.be/UlXpOGIpITM • Spotify: open.spotify.com/episode/25qD... • Apple: podcasts.apple.com/us/podcast/t...
Mellum started as a code completion model. Mellum2 goes much further – supporting both natural language and code. Now open source on @hf.co, Mellum2 is a 12B-parameter LLM for routing, RAG, and sub-agents, optimized for ultra-low-latency and high-performance inference. Learn more: jb.gg/awpava
Our full conversation with Andrew Kelley, creator of Zig, is out now. No AI policy, leaving GitHub, a $670K nonprofit, and why there's no 1.0 (yet). Watch here: jb.gg/zig-interview
🏆And the winner is… On Friday, we celebrated the Kotlin community members who inspire, teach, build, and bring people together. Congrats to the winners! 👏 @matheuslf.dev, @skydoves.bsky.social, @nicole-terc.bsky.social. Eeva-Jonna Panula @eevis.codes, Yinlong Liu https://kotlinconf.com/awards/
Golden Kodee Community Awards | KotlinConf 2026, May 20–22, Munich
KotlinConf is the official Kotlin conference by JetBrains. It is a place for the community to gather and discuss all things Kotlin.
kotlinconf.com
🚀 One of the biggest announcements at #KotlinConf26 was the Kotlin Toolchain. It’s a unified entry point for: ⚡ Creating apps ⚡ Building and testing ⚡ Formatting ⚡ Doc generation ⚡ AI agent integrations Available today for JVM and KMP projects. https://kotl.in/rm6hir
KotlinConf’26 Keynote Highlights: Advances in Language Design, Tooling, AI-Driven Workflows, and Multiplatform Development | The Kotlin Blog
At KotlinConf’26, the JetBrains team and industry partners shared how Kotlin continues to evolve for developers at every scale.
kotl.in
⚙️ Kotlin backend development was a major focus at the #KotlinConf opening keynote. Highlights included: ✅ Exposed 1.0 ✅ Vector types for AI similarity search ✅ Experimental first-party gRPC support in `kotlinx-rpc` ✅ Koog integration for Ktor 👇 https://kotl.in/rm6hir
KotlinConf’26 Keynote Highlights: Advances in Language Design, Tooling, AI-Driven Workflows, and Multiplatform Development | The Kotlin Blog
At KotlinConf’26, the JetBrains team and industry partners shared how Kotlin continues to evolve for developers at every scale.
kotl.in
KotlinConf is happening this week in Munich! 🎉 From May 20–22, over 2,000 Kotlin developers will gather for three days of talks, announcements, and community. 🎥 Join us live online: https://jb.gg/cim52r
KotlinConf ’26 Day 1 Livestream: Keynote Included
KotlinConf is the premier event connecting professional developers and companies shaping the future with cutting-edge technologies. Please note that the live...
jb.gg
Compose Multiplatform 1.11.0 was released last week. It improves your iOS and web experience with experimental native iOS text input, concurrent rendering on iOS by default, smoother scrolling on the web, and a refreshed approach to UI testing. Explore what’s new 👇 https://kotl.in/01k82s
Compose Multiplatform 1.11.0 Is Now Available | The Kotlin Blog
Compose Multiplatform 1.11.0 has been released with improvements to the iOS and web experience and a refreshed approach to UI testing.
kotl.in
Exploring database access in Kotlin? Exposed offers a Kotlin-first approach to working with SQL, including features such as DSL queries, transactions, and `upset` support. See what it can do for your backend 👇 https://www.jetbrains.com/exposed/
Exposed: the SQL library for Kotlin
Exposed is a Kotlin SQL library providing a typesafe DSL for constructing queries and a lightweight DAO framework for database interaction in ORM style.
jetbrains.com
Metro reaches 1.0! It's the proudest work of my career and I strongly feel this is how dependency injection in Kotlin should be. Thank you to everyone that's contributed and helped this project get to where it's at. Metro wouldn't be where it is without you. www.zacsweers.dev/metro-is-sta...
🚇 Metro is Stable
Metro 1.0.0 is out now and stable. This means that its runtime APIs (runtime, MetroX artifacts, Gradle plugin, etc.) are now API-stable unless annotated with an experimental annotation. This is an ex...
zacsweers.dev
🎙️ Our first guest in the AI series is the legend @mitchellh.com 🎙️ We covered a lot of ground and learned a tonne from him: 👻 Ghostty's internals and why tmux & certain shells strip its best features. His path from AI skeptic to cautious optimist.
Become an LLM expert with a free in-IDE course from JetBrains Academy. Learn how modern LLMs work and how to apply them in real projects, from NLP basics to RAG, vector databases, LoRA, and PEFT. Take the course. 👇 jb.gg/ecr9co
Agentic AI speeds up code production, but the challenge is execution and control. JetBrains Central is an open system for agentiс development across the SDLC, with governance, observability, and controlled execution. Early access starts in Q2 2026. Learn more: https://jb.gg/central
AI agents can generate unlimited amounts of code. Most of it is fine, but a few wrong lines can cause major errors or inefficiencies. Can a human reviewer spot them without getting fatigued? We covered this live: https://jb.gg/sdd-post-blue
Junie CLI, the LLM-agnostic coding agent, is now in Beta! Junie will follow you wherever you’re working: in the terminal, your IDE, or CI/CD workflows. With BYOK pricing, real-time prompting, and next-task prediction, Junie is ready for you to try. https://jb.gg/ecer6x
Agents can write code. Scaling them is the real challenge. Air is a dedicated environment for agent-driven development: parallel, isolated execution, full-project review, and support for Codex, Claude Agent, Gemini CLI, and Junie. Get started for free. Download Air for macOS: https://jb.gg/0y9ntn
blog.jetbrains.com/air/2026/03/...
Air Launches as Public Preview – A New Wave of Dev Tooling Built on 26 Years of Experience | The JetBrains Blog
Download Air – free for macOS. Windows and Linux versions coming soon. We hold a principled optimism for agentic software development – and a pragmatic one. After 26 years of building developer too
blog.jetbrains.com
IntelliJ IDEA Documentary is now live. 📷 How did an IDE created by a small team become a tool used by millions of developers worldwide? And how is it adapting to the age of AI? Together with @CultRepo we tell the 25-year story of IntelliJ IDEA. https://youtu.be/Kourq_Lz03U
IntelliJ IDEA: The Documentary | An origin story
YouTube video by CultRepo
youtu.be
🎥 New conference recording from the Unison community! A deep dive into content-addressed code and how it changes refactoring, dependency management, and remote code execution. 🌟 Dejan's keynote is one to watch! www.youtube.com/watch?v=mQHo...
Dejan Miličić - Unison: A New Programming Paradigm
Unison is a pure functional language introducing a groundbreaking concept: content-addressed code. On top of the well-known advantages of functional programm...
youtube.com
📣 The full #KotlinConf26 schedule is now live on our website! Explore the talks, workshops, and speakers, and start planning your agenda today. Check it out: https://kotl.in/conf26-schedu
🤖 WebMCP is officially available for early preview, bridging the gap between websites and AI agents → goo.gle/4rML2O9 By defining structured tools via Declarative and Imperative APIs, you can make your site "agent-ready" for more reliable and performant automation.
