https://kotlinlang.org logo
Join Slack
Powered by
# announcements
  • a

    Alina Dolgikh [JB]

    01/09/2025, 1:47 PM
    kotlinconf24 Become a KotlinConf 2025 volunteer! πŸ“… When: May 21–23, 2025 πŸ“ Where: Copenhagen, Denmark 🀝 What you’ll do: β€’ Register attendees β€’ Help attendees navigate around the venue β€’ Assist with event administration ✨ What you’ll get: β€’ Free access to talks when off duty β€’ Opportunities to meet new people in the Kotlin community β€’ Regular coffee breaks and a free lunches Apply before January 20: https://kotlinconf.com/volunteers/
    kotlinconf24 7
    🏌️ 3
    K 28
    ❀️ 11
    kodee welcoming 8
    πŸ™Œ 1
  • a

    Alina Dolgikh [JB]

    01/21/2025, 1:38 PM
    πŸ“£ Share your thoughts on Kotlin 2.1 features! Have you tried guards, multi-dollar interpolation, or non-local break/continue? Let us know how they’re working for you, and help shape the evolution of Kotlin. πŸ‘‰ Take the survey: https://kotl.in/s2ay9o
    kodee pleased 18
    πŸ™Œ 1
    r
    m
    d
    • 4
    • 3
  • a

    Alina Dolgikh [JB]

    01/28/2025, 3:35 PM
    πŸ“’ Do you use Kotlin for backend development? We’re launching the Kotlin for Server-Side Content Creators campaign to recognize good content and share it with the Kotlin community. Whether it’s a blog post, video, or project, we want to promote your work. What to share? βœ… Your journey exploring Kotlin for backend development βœ… Migration stories from Java backends to Kotlin βœ… Tutorials on building with Ktor or Spring Boot in Kotlin βœ… Practical tips for Kotlin server-side development πŸ‘‰ Learn more: kotl.in/2ygmbv
    kodee excited 5
    kodee greetings 3
    K 14
    kodee happy 33
    p
    v
    +8
    • 11
    • 16
  • a

    Alina Dolgikh [JB]

    02/13/2025, 1:22 PM
    ktor newπŸŽ‰ Ktor 3.1.0 is here! This release brings many updates, including: βœ… SSE improvements βœ… A new CLI project configurator βœ… HttpClient multipart βœ… New feedback collection tools Read the blog post and start building your next project today!
    captura de pantalla 2022 04 21 a las 113738 5
    kodee happy 6
    K 31
    πŸŽ‰ 42
  • a

    Alina Dolgikh [JB]

    02/17/2025, 1:11 PM
    KπŸ€– Curious about how AI models handle Kotlin? We put DeepSeek-R1, several OpenAI models, and others to the test using Kotlin-specific benchmarks. Here’s what we discovered: βœ… How well different models respond to Kotlin-related questions βœ… How the models compare in accuracy and reasoning βœ… Where they succeed – and where they struggle πŸ‘‰ Read the full analysis: https://kotl.in/ai-models
    kodee happy 27
    πŸ‘ 5
    e
    v
    d
    • 4
    • 4
  • a

    Alina Dolgikh [JB]

    02/19/2025, 1:44 PM
    K The Kotlin Foundation Annual Report 2024 is here! πŸ”Ή 2.5M+ developers coding in Kotlin πŸ”Ή $182K+ invested in ecosystem growth πŸ”Ή Student contests, grants and open-source contributions As founding members of the Kotlin Foundation and creators of the language, JetBrains is proud to be part of the Kotlin community and see how the technology is growing. For an overview of last year's milestones and upcoming plans for the ecosystem, see the πŸ”— Foundation's 2024 Annual Report.
    πŸ˜€ 3
    kodee greetings 7
    πŸš€ 23
    K 43
    m
    e
    • 3
    • 3
  • a

    Alina Dolgikh [JB]

    03/03/2025, 1:00 PM
    πŸ“£ Calling all students and open source beginners! Great news: The Kotlin Foundation joins Google Summer of Code 2025 as a mentor organization! If you are a student or new to open source and eager to contribute to Kotlin-related projects, collaborate with experienced mentors, and enhance your skills, this is your chance to learn and grow. Explore project ideas and participation guidelines: β€’ Read the blog post about GSoC β€’ Join us in the #C04N1T126DU channel for updates and to connect with mentors
    kodee happy 21
    K 29
    πŸŽ‰ 13
  • a

    Alina Dolgikh [JB]

    03/14/2025, 2:34 PM
    K In case you missed it, we’ve updated our Kotlin roadmap! Head over to our Kotlin roadmap page to explore what we’ve accomplished since September 2024, our key objectives, and future plans. πŸ”— Kotlin roadmap πŸ”— πŸ”₯πŸ”₯ During KotlinConf 2025, we’re going to share some interesting updates in these areas!
    πŸ—ΊοΈ 8
    kodee happy 33
    K 58
    ❀️ 33
    β˜• 2
  • a

    Alina Dolgikh [JB]

    03/19/2025, 11:17 AM
    πŸŽ‰ The first Kotlin for server-side content roundup is here! From Java-to-Kotlin conversions to Ktor tutorials and end-to-end testing, here’s what the community has been working on: πŸ“– Java to Kotlin migration guide πŸŽ₯ Mastering Ktor backend development πŸ“– Secure Firebase authentication in Ktor πŸ’» kotlin-wot – A Web of Things framework in Kotlin πŸ‘‰ Read more: https://kotl.in/y3g829
    πŸ‘ 3
    πŸŽ‰ 6
    πŸ™Œ 12
  • a

    Alina Dolgikh [JB]

    03/20/2025, 4:00 PM
    K Kotlin 2.1.20 is here! K This release brings powerful new features and improvements: ✨ K2 support for kapt and Lombok plugins πŸ”— Common atomic types and improved UUIDs in stdlib ⏱️ Native time-tracking API ⚑ New inlining optimizations in Kotlin/Native πŸ› οΈ Better debugging for Kotlin/Wasm πŸ“œ A new DSL to replace Gradle’s Application plugin πŸ“š Big improvements to Kotlin documentation Learn more: https://kotl.in/2-1-2
    thank you color 8
    K 58
    πŸ‘ 8
    kodee greetings 16
    ❀️ 37
    kodee happy 70
    d
    m
    +5
    • 8
    • 12
  • a

    Alina Dolgikh [JB]

    04/07/2025, 11:54 AM
    amper intensifies*Amper 0.6.0 is out!* This release improves how you set up and manage projects from both the IDE and CLI. Here’s what’s new: βœ”οΈ Refactor and inline templates with new IDE shortcuts πŸ₯Έ Aliases for easier config navigation πŸ†• A new interactive amper init πŸͺ„ Tab completion support πŸͺ΅ Cleaner logs with color coding πŸ“¦ Updated dependency versions (Kotlin 2.1.20, Compose 1.7.3, kotlinx.serialization 1.8.0) Learn more πŸ‘‰ https://kotl.in/fe6st7
    amper intensifies 32
    πŸ‘ 1
  • a

    Alina Dolgikh [JB]

    04/10/2025, 8:46 AM
    There’s a new Exposed website! exposed Take a look at the sleek new portal to the Exposed SQL library for Kotlin: β€’ πŸ”Ž Explore and compare Kotlin DSL and SQL examples using the nifty Kotlin/SQL slider. β€’ πŸ“„ Access documentation and support channels. β€’ 🀝 Connect with the community. Check it out: https://www.jetbrains.com/exposed/
    πŸŽ‰ 17
    πŸ¦‘ 4
    exposed 2
    K 53
    l
    c
    • 3
    • 5
  • a

    Alina Dolgikh [JB]

    04/15/2025, 3:03 PM
    πŸ”οΈ With the K2 mode set to become the default in IntelliJ IDEA 2025.1, we’re taking you behind the scenes of Kotlin compiler development. Discover how we integrated K2 into the IDE – and the impact it’s already making. https://blog.jetbrains.com/idea/2025/04/the-story-behind-k2-mode-and-how-it-works/
    πŸ§™β€β™‚οΈ 3
    K 16
    πŸ§™πŸΎβ€β™‚οΈ 1
    πŸ‘€ 1
    πŸŽ‰ 18
  • a

    Alina Dolgikh [JB]

    04/16/2025, 1:15 PM
    πŸ”οΈK K2 mode is now the default in IntelliJ IDEA 2025.1! ✨ Experience better Kotlin code analysis, improved stability, and support for the latest language features. Learn more about K2 mode and what it means for your development workflow.
    πŸ‘ 10
    K 35
    πŸ™Œ 2
    πŸŽ‰ 18
    πŸ‘πŸ» 1
    πŸ‘πŸΎ 1
  • a

    Alina Dolgikh [JB]

    04/17/2025, 7:56 AM
    πŸš€ kotlin notebook Kotlin Notebook comes bundled in IntelliJ IDEA 2025.1 – both Community Edition and Ultimate. It is also coming soon to Android Studio. We are excited to provide you with this powerful tool, which will assist with your everyday needs and even expand Kotlin’s applications. β€’ Prototype code β€’ Explore APIs β€’ Document with live snippets β€’ Visualize data β€’ Teach courses And more! πŸ‘‰* Learn more.*
    SpringAI.mp4
    πŸ™Œ 26
    πŸ™ŒπŸ» 2
    πŸš€ 24
    kodee excited 17
    K 6
    πŸ™ 2
    πŸ™ŒπŸΎ 1
    πŸ™‚ 1
  • a

    Alina Dolgikh [JB]

    04/17/2025, 1:36 PM
    Kintellij idea New tools in your Kotlin toolbox – built right into IntelliJ IDEA! Your JetBrains AI subscription now includes: β€’ Junie – a Kotlin-aware coding agent that can build full features or modules from plain instructions. β€’ AI Assistant – an AI-powered coding companion that offers smarter inline help, completions, test generation, and refactorings. These tools are made to work naturally with Kotlin. We’ve tested them across server-side, Android, and multiplatform projects. ✨ No setup is required – enable the JetBrains AI plugin in IntelliJ IDEA and start exploring! πŸ“– More on how they work: https://kotl.in/jetbains-ai
    K 31
    kodee electrified 7
    kodee happy 12
    πŸš€ 4
    thank you color 3
    πŸ‘ 1
    e
    s
    +5
    • 8
    • 19
  • a

    Alina Dolgikh [JB]

    04/22/2025, 2:55 PM
    🧠 Are you using AI tools to develop in Kotlin? If you’re using or ever tried using AI to generate snippets, debug code, or get answers to your questions, we’d love to learn more about your experiences! πŸ’¬* Take a minute to share your feedback with us!*
    βœ… 8
    πŸ‘ 4
    🫰 1
    K 18
    πŸ‘πŸΎ 1
    🫰🏾 1
  • a

    Alina Dolgikh [JB]

    04/29/2025, 10:04 AM
    kotlin notebook A practical guide to getting the most out of Kotlin Notebooks! If you're curious about how to really take advantage of Kotlin Notebooks β€” whether for quick prototyping, dependency management, or data visualization β€” we've put together a detailed guide in our latest blog post. πŸ‘‰ Check it out!
    K 19
    kotlin notebook 9
    kodee electrified 3
  • a

    Alina Dolgikh [JB]

    04/30/2025, 3:38 PM
    ktor new "How should I structure my Ktor project for scalability, maintainability, and long-term growth?" It’s a common question among Ktor developers. In this step-by-step guide, Anton Arhipov walks you through building a minimalistic CRM while applying domain-driven design (DDD) concepts to structure your Ktor project effectively. πŸ“– Read the guide
    ktor new 10
    πŸ™Œ 3
    πŸ‘ 22
    πŸ‘πŸΎ 1
    πŸ™ŒπŸΎ 1
  • a

    Alina Dolgikh [JB]

    05/06/2025, 7:44 AM
    Have you explored Kotlin's documentation lately? Did you find what you came for, or did something trip you up? kodee lost Take our Kotlin Documentation Survey to help us make it more useful and accessible. πŸ•’ Survey time: Approximately 15 minutes kodee walking Tell us what you think of Kotlin’s docs: https://surveys.jetbrains.com/s3/kdocs-slack
    ✍️ 4
  • a

    Alina Dolgikh [JB]

    05/06/2025, 6:42 PM
    K Compose Multiplatform 1.8.0: Now Stable and Production-Ready on iOS! K Build mobile apps faster with shared UI code, full control over native experiences, and the confidence to ship at scale. Compose Multiplatform for iOS is now production-ready and fully equipped with everything you need to craft beautiful UIs for real-world apps. πŸ”₯πŸ”₯πŸ”₯ Check out the latest updates in Compose Multiplatform 1.8.0 and see why it's the perfect time to start using it. πŸš€
    🍎 23
    πŸ“± 17
    πŸš€ 17
    πŸ‘πŸ» 1
    πŸ‘πŸΎ 1
    πŸ‘πŸΌ 1
    🍏 2
    K 163
    πŸ‘ 35
    so beautiful 20
    πŸŽ‰ 66
    πŸ”₯ 2
    kodee happy 1
    πŸ‘πŸΎ 1
    K 80
    k
    e
    +2
    • 5
    • 13
  • h

    hhariri

    05/09/2025, 6:28 AM
    πŸš€ We’ve been focused on enhancing Kotlin Multiplatform for web, and a lot has been going on behind the scenes. πŸ› οΈ Now, we’re ready to share it – check out our latest update on the present and future of Kotlin for web. ➑️ Read the blog post To share feedback or ask questions, explore topic-specific channels like #CDFP59223, #C01F2HV7868, #C0B8L3U69, and #C3PQML5NU.
    kodee happy 23
    JS 13
    πŸš€ 9
    🀩 11
    πŸ‘ 9
    .wasm 26
    πŸ‘πŸΎ 1
    πŸ€‘ 1
    K 72
    ❀️ 18
    a
    a
    +4
    • 7
    • 22
  • a

    Alina Dolgikh [JB]

    05/14/2025, 5:15 PM
    gradle intensifies Gradle Best Practices gradle intensifies To enhance the developer experience, Gradle, Google, and JetBrains have collaborated to create the Gradle Best Practices guide. This guide helps teams navigate Gradle’s flexibility with clarity and consistency, enabling confident, future-proof builds. πŸ‘‰ Explore the details in Gradle’s latest blog post: Gradle Best Practices – A Path to Build Happiness πŸ‘‰ Check out the full Gradle Best Practices guide. P.S. We’re just getting started – more best practices and insights are coming your way, so stay tuned!
    ❀️ 19
    πŸ’― 11
    πŸ‘πŸ» 1
    G 30
    πŸ™Œ 3
    πŸ‘πŸΌ 1
    gradle intensifies 8
    πŸ‘ 43
    K 27
  • a

    Alina Dolgikh [JB]

    05/19/2025, 5:27 PM
    πŸŽ‰ The new KMP plugin is now available for IntelliJ IDEA and Android Studio, making KMP development smoother and smarter. Key highlights include: ✨ Integrated New Project wizard πŸ” Preflight checks πŸ”§ Run configurations for all platforms 🧭 Cross-language support 🎨 Compose Multiplatform support πŸ”₯ Compose Hot Reload Discover more in our latest blog post: https://kotl.in/f4tw6d Try the KMP plugin for yourself: https://plugins.jetbrains.com/plugin/14936-kotlin-multiplatform Please share your thoughts and questions here or in the dedicated #C3PQML5NU channel.
    K 71
    πŸ™ŒπŸΏ 1
    πŸ™ŒπŸ» 5
    ❀️ 16
    πŸ™ŒπŸΎ 2
    πŸ™ŒπŸΌ 3
    πŸ‘ 5
    swift 38
    πŸ‘πŸΎ 1
    πŸ”₯ 3
    πŸ™Œ 63
    n
    z
    +9
    • 12
    • 43
  • a

    Alina Dolgikh [JB]

    05/21/2025, 8:39 AM
    πŸš€ Big news: Kotlin and Azul are teaming up to boost runtime performance for Kotlin apps! From bytecode to JVM optimizations, we’re joining forces to push performance further, and early benchmarks look very promising. πŸ”¬ Learn more in the official blog post.
    πŸŽ‰ 11
    πŸ‘ 11
    πŸ‘πŸΎ 2
    πŸš€ 34
    n
    y
    +4
    • 7
    • 12
  • a

    Alina Dolgikh [JB]

    05/22/2025, 3:32 PM
    Join the KotlinConf Closing Panel! kodee greetings KotlinConf is all about community, and that includes you, wherever you are! Even if you couldn’t make it to the venue, you can still be part of the conversation. Post your Kotlin questions or upvote your favorites in the Slido app. We’ll answer as many as we can during the Closing Panel. πŸ‘‰ kotl.in/closing
    kodee happy 27
  • h

    hhariri

    05/29/2025, 10:02 AM
    kodee greetings If you missed the KotlinConf 2025 opening keynote or if you just want to rewatch the highlights, the full recording is now available online. πŸŽ₯ Watch the keynote here:

    kotl.in/conf-keynoteβ–Ύ

    πŸ“ Or if you’re short on time, check out our recap with the main highlights: kotl.in/conf25unpacked
    πŸ‘πŸΌ 1
    πŸ‘ 12
    kodee greetings 35
    πŸ‘πŸΎ 2
    K 51
  • a

    Alina Dolgikh [JB]

    06/10/2025, 2:59 PM
    K The new Kotlin for server-side content roundup is here! From gRPC best practices to Ktor tutorials and Spring tips, here’s what the community has been working on: πŸ“– Injecting functions in Spring Boot πŸ“– Learning Ktor through a Spring Boot lens πŸŽ₯

    Spring for GraphQL with Kotlin coroutinesβ–Ύ

    πŸ“– Kotlin + gRPC article series πŸŽ₯

    Ktor crash course with JWT and CRUDβ–Ύ

    Tag your posts with #KotlinServerSide to get noticed! πŸ‘‰ Read more: https://kotl.in/22zbqk
    ❀️ 9
    πŸŽ‰ 9
    graphql 3
  • a

    Alina Dolgikh [JB]

    06/11/2025, 11:00 AM
    ✨ At this year's KotlinConf, we've introduced Koog, an open-source agentic framework that empowers developers to build and run AI agents entirely in idiomatic Kotlin. Koog is designed to tackle a wide range of challenges, from obvious ones like fast onboarding, simplified agent creation, pre-defining strategies, and seamless MCP protocol support to more advanced capabilities like response streaming and efficient handling of long contexts and query histories. πŸ› οΈ Start building your own agents with Koog: https://docs.koog.ai/ πŸ’¬ We’d love to hear your feedback! Please share it in the #C08SLB97W23 channel.
    πŸ‘ 3
    πŸŽ‰ 7
    kodee happy 26
  • a

    Alina Dolgikh [JB]

    06/13/2025, 9:01 AM
    πŸš€ The HTTP Client plugin is now in Android Studio! Generate and run HTTP requests directly from your code, with support for Retrofit, OkHttp and Ktor. Enjoy seamless editor integration, code completion, and more. πŸ”— Read our blog for full details!
    graphql 5
    K 12
    ❀️ 30
    e
    k
    • 3
    • 2