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💡 If you're thinking about submitting a session for KotlinConf 2026, check out our blog post with insider tips to help your proposal shine ✨ 👉 kotl.in/conf26-proposa…
🎤 Ready to share your Kotlin story on the big stage? The KotlinConf’26 Call for Papers is open! Learn how to craft a standout proposal with guidance from veteran presenters, JetBrains speakers, and KotlinConf committee members. Read more ⤵️ blog.jetbrains.com/kotlin/2025/10…
This year’s Kotlin Multiplatform Contest for students and recent graduates is open. Build a project using KMP, and it could take you to KotlinConf 2026 in Munich, Germany! 💜 kotl.in/contest-26
Ktor 3.3.1 is here! Check out the changelog for the full details. ktor.io/changelog/3.3/…
📢 Kotlin 2.3.0-Beta1 is out! Here are some of the highlights: ✅ Language: a preview of the unused return value checker and changes to context-sensitive resolution ✅ Feature stabilization: nested type aliases, exhaustive `when`, and the new time tracking functionality ✅…
Want to increase the speed of your iOS builds? Try incremental compilation for Kotlin/Native, by adding this to your Gradle properties: kotlin.incremental.native=true This is an experimental feature, and we'd love to hear your feedback. Learn more ⤵️ kotlinlang.org/docs/native-im…
kotlinlang.org
Tips for improving compilation time | Kotlin
Tips for improving compilation time | Kotlin
📢Kotlin 2.2.21-RC is here – the first release with Xcode 26 support. 🎉 It also brings performance improvements and bug fixes. Changelog: ➡️github.com/JetBrains/kotl…
Koog 0.5.0 adds Agent2Agent (A2A) Protocol support 🚀 Agents now publish their capabilities in a standard format, making it easy for others to find them and call their APIs across JVM, iOS, Android, and Wasm. Check out what’s new → github.com/JetBrains/koog…
🎉 JUnit 6.0 is here, and it brings even deeper Kotlin support! Now, you get: ✨ Suspend and cancellation support ✨ Kotlin 2.2 baseline ✨ Improved nullability annotations ✨ Convenient UX with contracts Check out the full release notes 👉 kotl.in/b8wncm?utm_cam…
JUnit 6 released, and Kotlin is part of the party 🥳 Suspend & cancellation support is absolutely amazing 🔥🔥🔥
Teaching Kotlin? Our "Programming in Kotlin" course is now available in two formats: ➤ Classic slide-based materials. ➤ Interactive Kotlin notebooks with runnable code and Markdown. Read the full blog post and try out the new format ⤵ blog.jetbrains.com/kotlin/2025/08…
✨ Have you tried Ktor's brand-new OpenAPI spec generation feature? We want your take – what worked, what didn't, what surprised you? Fill out our short survey 👉 surveys.jetbrains.com/s3/Ktor-OpenAP… Help us shape the future of #Ktor 🚀
Build AI-powered backends with Kotlin. These Spring AI tutorials show you how to: – Call an LLM – Generate embeddings – Build an RAG system Each tutorial runs in a Kotlin notebook and includes working code. 👉 github.com/Kotlin/Kotlin-…
📱 Two Years with Kotlin Multiplatform: From Zero to 55% Shared Code At KotlinConf’25, @rsicarelli shared how StoneCo – serving 4M+ users – scaled KMP adoption, trained 130 engineers, and achieved 55% code sharing across two large-scale mobile apps. 📺 kotl.in/u5aa8v
🚀 Build your first AI agent in Kotlin with Koog, JetBrains’ framework for LLMs! Watch this short, step-by-step video and learn how to set up dependencies, create an LLM client, send prompts, handle responses, translate text, and call tools ⤵️ youtu.be/TAtU7joTGaA?si…
youtube.com
YouTube
Your First AI Agent in Kotlin | Tutorial
Do you have a complex business rule-set problem? Business rules spread across platforms, systems, and apps? At KotlinConf’25, Anshika Koul shared how Norway’s 377-year-old national postal service tackled this challenge with Kotlin Multiplatform. 📺 kotl.in/v528cc
When building backends, a lot of time goes into reshaping data. Kotlin helps with smart casts, destructuring, and the recently added guards, all making data transformations cleaner, safer, and more intuitive. Watch more 👉 kotl.in/w5c5wg
🚀 Wolt went from Python to Kotlin to ensure their fintech and payment services run smoothly and reliably. Why did Kotlin become their language of choice? Watch the @woltapp testimonial to find out! For more on Kotlin for server-side development, visit 👉 kotl.in/server-side-la…
🌟 Kotlin and AI for end-to-end development – from SDK calls to agents and IDE tooling. This post gives you insight into SDKs, Spring AI, the MCP, Koog for agents, Junie in IntelliJ IDEA, and other aspects of the mutual support between Kotlin and AI. ➡️ kotl.in/ai-stack
The Ktor roadmap for 2025–26 is here! Here's what we'll be working on: 🔶 API docs (OpenAPI is already in preview) 🔶 WebRTC Client with a Multiplatform API 🔶 Integration with Koog, the @jetbrains framework for building AI agents Explore what’s next 👇 blog.jetbrains.com/kotlin/2025/09…
🚀 The Kotlin Multiplatform plugin for IntelliJ IDEA is now on Linux and Windows! Build for Android, desktop, and web – with all the latest web improvements included. 👉 Install now: kotl.in/kmp-plugin P.S. Android Studio is coming soon, so stay tuned!
🚀 Compose Multiplatform for web goes Beta in the 1.9.0 release! Now is the perfect time to bring your Compose code and skills to the browser with minimal effort. Extend your apps beyond mobile and desktop to the web. Learn more ⤵️ kotl.in/cmp190-x
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