:kotlin-intensifies-purple:🌲:60fps_parrot: We invite you to join us in participating in Advent of Code in Kotlin this year! For the second year in a row, JetBrains will be sponsoring Advent of Code in 2022. It’s a great way to practice your problem-solving, keep your Kotlin skills sharp, compete, and learn from the fantastic community surrounding the event. And it’s a wonderful way to get your hands on some exclusive Kotlin prizes! 🎁 https://blog.jetbrains.com/kotlin/2022/11/advent-of-code-2022-in-kotlin/

:kotlin-intensifies-purple: 📯 Attention all who develop concurrent algorithms on the JVM! 👉 Check out our new Lincheck guide. Lincheck is a declarative framework for writing concurrent tests, and this guide walks you through its features step by step, using real-world examples to teach you how to test concurrent data structures.

📣 :kotlinconf23: Join the Kotlin Multiplatform Contest and win a trip to KotlinConf’23! https://kotlinlang.slack.com/archives/C3PQML5NU/p1667232143576329

🎥✍️💻 Shout-Out to Kotlin Multiplatform Mobile Content Creators! Kotlin Multiplatform Mobile is in Beta, and the technology’s ecosystem is continuing to expand and mature. All of this would be impossible without your contributions. Developers all over the world are sharing their experience, providing tips&tricks, and creating great educational samples to inspire learners and help complete the official resources. ⭐ Check out this blog-post for some great new content and for content ideas!

:kotlinnew: What can you expect from Kotlin in 2023? 🚄 A faster K2 compiler. 🚀 A more performant IDE based on K2. 🏰 A Stable version of Kotlin Multiplatform Mobile. 🛠️ Improved tooling for library authors. Check out the Kotlin roadmap and help us improve Kotlin!

:kotlin-intensifies-purple: 🆕 Kotlin 1.8.0 has been released and is ready for you to use! Check out what’s new from this documentation article, and stay tuned for more details later: https://kotlinlang.org/docs/whatsnew18.html

📣 :kotlinconf23: Just a few days left to submit your project to the Kotlin Multiplatform contest. 🧳 Every participant has a chance to win a trip to KotlinConf’23 and get some special Kotlin Swag. 📆 Don’t miss the January 13 deadline! 🔗 Read more: https://kotlinconf.com/contest/ 😒lack: Join the conversation: #kotlin-multiplatform-contest

📣 Be sure to update to Kotlin 1.8.0! Here are some of its biggest highlights: • New experimental functions for JVM: recursively copy or delete directory content • Improved kotlin-reflect performance • New -Xdebug compiler option for better debugging experience •

kotlin-stdlib-jdk7

and

kotlin-stdlib-jdk8

merged into

kotlin-stdlib

• Improved Objective-C/Swift interoperability • Compatibility with Gradle 7.3 Learn about new features in your favourite format (📹 / 📕)

📣 We’re researching what’s important to developers who start using Kotlin and how we can support newcomers in their first steps. If you’ve been using Kotlin for less than 6 months, please complete our survey for the chance to win a prize 🎁 👉 https://surveys.jetbrains.com/s3/kotlin-onboarding-sl

📣 :kotlin-intensifies-purple: We’ve released Kotlin 1.8.10 with fixes for some issues and regressions in 1.8.0. Check out the changelog for more details: https://github.com/JetBrains/kotlin/releases/tag/v1.8.10

Kotlin’s compiler build is now reproducible! 🛡️ An additional layer of defense against malicious code entering the build process. ⚙️ Build and verify the compiler and artifacts yourself. Learn more ➡️

📣 :kotlinconf23: KotlinConf’23 workshop-only day tickets are now available for purchase! https://kotlinlang.slack.com/archives/C4J6927RR/p1675772487506199

🆕:kotlin-intensifies-purple:😛arty-parrot: 📣 Kotlin 1.8.20-Beta brings many new features: • New Kotlin K2 compiler updates • New experimental Kotlin/Wasm target • New JVM incremental compilation by default in Gradle • Update regarding Kotlin/Native targets • Preview of Gradle composite builds in Kotlin Multiplatform • Improved output for Gradle errors in Xcode • Experimental support for AutoCloseable interface in standard library • Experimental support for Base64 encoding in standard library 📣 The K2 Compiler is going stable in Kotlin 2.0 We’ve been working on a new frontend for the Kotlin compiler (code-named “*K2*”) for quite a while. The new frontend is already available for preview – we’re continually polishing and stabilizing it and plan to make it the default compiler frontend in a future Kotlin release. We’ve decided to name this future release Kotlin 2.0. Learn more about the release roadmap and what to expect from Kotlin 2.0 Try out the new compiler frontend and give us feedback! Starting with Kotlin 1.8.20-Beta you can enable a preview of the Kotlin 2.0 language version via the regular Kotlin language version flag.

Kotlin webinars are a great way to sharpen your Kotlin skills and explore the possibilities of various developer tools! Check out our webinar schedule for the next 2 weeks and choose the webinars that interest you the most or, if you’re feeling brave, attempt them all! 📹 Advanced Kotlin Techniques for Spring Developers As a seasoned developer, you’re likely already familiar with Spring. Kotlin can take your developer experience with Spring to the next level! Join this webinar and learn how to: • Add new functionality to existing classes with Kotlin extension functions. • Use Kotlin bean definition DSL. • Better configure your application using

lateinit

. • Use sequences and default argument values to write more expressive code. By the end of this talk, you’ll have a deeper understanding of the advanced Kotlin techniques that are available to you as a Spring developer, and be able to use them effectively in your projects. 📆 Tuesday, February 14, 15:00 (UTC +2) 👉 Register 📹 Graceful Resource Handling Using Structured Concurrency in Kotlin Modern programming often requires us to make strong guarantees about how our applications terminate. One way to do this is through the use of structured concurrency, which allows us to reason about parallel processes and how they relate to each other. In this session, we will learn how to use Arrow’s Resource Domain-Specific Language (DSL) to reason about resource safety in the same way we use structured concurrency to avoid leaking resources. We will also see how this can be combined with KotlinX Coroutines to build complex use cases in a simple and elegant way using Kotlin DSLs. 📆 Thursday, February 16, 19:00 (UTC +2) 👉 Register 📹 Creative Coding With Kotlin and OPENRNDR This talk will look at the OPENRNDR library and its capabilities as a tool for visually stunning artwork. We’ll begin with an introduction to the library and cover drawing basic shapes like circles and rectangles. The focus of the talk will be a live coding session where we create a simple GUI and explore the compositor framework, showing the library in action and how it can be used to create complex visuals. We’ll conclude by showing how to create screenshots and videos of OPENRNDR projects to share them with the world. Join us to learn how to unleash the creative potential of OPENRNDR and create amazing visuals! 📆 Wednesday, February 22, 18:00 (UTC +2) 👉 Register (edited)

🆕 📹 Here’s the March edition of the Kotlin webinar series, brought to you by @antonarhipov and our guests. 📹 Application Development With Kotlin Flow - March 8 @ 4 PM UTC During the live coding session, Yury Ruchin from Synthesized will explain: • How to create and run flows. • The differences between cold flows and hot flows. • The connection between flows and coroutines. Register ▶️ https://kotl.in/aupqtp 📹 Hexagonal Architecture Inside the Hexagon Toolkit – March 22 @ 4 PM UTC Join the webinar with Juanjo Aguililla @hexagon_kt to learn about the design goals of the Hexagon Toolkit and explore the principles of Hexagonal Architecture that are applied to achieve these goals. Sign up here: https://kotl.in/rgpf66

📣 Kotlin 1.8.20-RC is out with: ✅ New Kotlin K2 compiler updates ✅ AutoCloseable interface and Base64 encoding in stdlib ✅ New JVM incremental compilation enabled by default ✅ New Kotlin/Wasm compiler backend What’s new | Changelog Help us put the finishing touches :magic_wand: on the RC by reporting any lingering issues in YouTrack

📣 :compose: Hi everyone! We’ve done some housekeeping for Compose-related channels to ensure they remain convenient for the multiple discussions of the skyrocketing Compose community! 🚀 There are 3 main updates: • :compose: The #compose channel is now designated for discussing general Compose topics unrelated to any particular platform, such as the common API and Compose design principles. • :android: We created the new #compose-android channel to discuss anything related to Android-specific Compose APIs, topics like integration with Android, and Android Studio tooling. Join the new channel! • 😒tackoverflow: We want to encourage everyone in the community to post StackOverflow-style questions on StackOverflow. If you think your question fits well there, please consider moving it. Questions will be more easily discoverable for other people on the internet, making Compose channels more unique and interesting to follow. Please use the relevant tags [compose], [android-jetpack-compose]. We’ve updated descriptions in all Compose channels. Please check them out for more details.

:kotlinconf23:

Watch KotlinConf 2023 live! ▾

🤩 Even if you can’t make it in person, you can still enjoy the conference thanks to our livestream. 🗓️ Be sure to mark your calendars and join us for all the action! ⏰ It starts on April 13 at 9 am CET.

📣 :kotlin-intensifies-purple: Kotlin 1.8.20 is out with: ⭐️ New Kotlin K2 compiler updates ⭐️️ AutoCloseable interface and Base64 encoding in stdlib ⭐ New JVM incremental compilation enabled by default ⭐ Preview of Gradle composite builds in Multiplatform ⭐ New Kotlin/Wasm target Try it out!

📣 :kotlinconf23: Attention KotlinConf viewers! Don’t miss your chance to ask the KotlinConf speakers questions! Post them on Twitter using #kc23ask, or leave a comment on this post. We’ll answer as many questions as we can during the Closing Panel on April 14, 17:15 CEST. 📽️ You can join the online livestream and catch all the action → kotl.in/conf'23.

🌟 :kotlinconf23: We’re excited to start KotlinConf 2023 with an opening keynote by Roman Elizarov, Svetlana Isakova, Egor Tolstoy, and Grace Kloba! 🎥 !

:kotlinconf23:🔥 Don’t miss the KotlinConf closing panel with Hadi Hariri and select speakers! Join us at 5:15 pm CEST. We’ll answer the most interesting questions we got from the conference attendees and livestream viewers. 📽️

🆕 :gradle: Gradle has officially selected the Kotlin DSL as the default for new Gradle builds! 📈 Improved user experience: The Kotlin DSL makes the Gradle build process smoother, simpler, and more enjoyable. 🦸 First-class IDE support: IntelliJ IDEA offers robust IDE support for

build.gradle.kts

files, including code completion, syntax highlighting, and refactoring. 🛠️ Simplified, declarative plugin syntax: The Kotlin DSL offers the same benefits as the core Kotlin language, simplifying the development process and helping streamline workflows in Gradle. Check out this blog post to learn more 👇

📣 📣 The Kotlin Foundation has launched a grant program to financially support library, framework, and tool authors. We’re looking for projects that have the potential to make an impact on the Kotlin ecosystem. To be considered, projects must be: 1️⃣ Available under a permissive open-source license. 2️⃣ Actively maintained and have a track record of development history and contributions. 3️⃣ Developed by private individuals. To apply, simply fill out the application form. The deadline for submissions is May 15. Learn more about the grants program at kotlinfoundation.org/grants.

🆕 📹 Join our new webinar to level up your creative coding skills! Visualizing MIDI Sequences With Kotlin and OpenRNDR – April 26, 3 pm UTC During this live session, Edwin Jakobs @voorbeeld will reveal the potential of OpenRNDR, an open-source framework for creating stunning visuals. You will find out what you can do with MIDI signals processed by a Kotlin program using the framework. Take this opportunity to learn and get inspired by the limitless possibilities of creative coding! Register 👉 https://jb.gg/hyutq5

📣🌟 The Kotlin Foundation launches its Membership Program! This program allows companies and organizations to contribute their work and ideas to help the Foundation fulfill its mission and influence the future of the Kotlin ecosystem. ➡️ Check out the details here: Kotlin Foundation Membership Program.

📣 📣 Calling all Kotlin Multiplatform enthusiasts! Have you filled in the Kotlin Multiplatform Q2 survey yet? Your feedback is invaluable in shaping the technology’s future. Have your say and help make Kotlin even better 🙌

👋 :mascot: The Kotlin Mascot Returns – Say Hello to Kodee! 🎉 Kotlin’s mascot is finally back! With our community’s feedback in mind, we redesigned our mascot to give you a friendly companion and something special that will spark your imagination and evoke a sense of connection. We have prepared Kotlin mascot assets for you to explore and encourage you to experiment and engage your inner artist with Kodee. Discover more about Kodee in our latest blog post 👇

📣:kotlinconf-2023:🔔 All the talks from KotlinConf'23 are now available to watch online! ⭐ Keynote with exciting announcements 🎬 60+ content-packed sessions 🎤 Closing panel with the speakers Check them out to learn the latest insights and trends in Kotlin development

🎉 We’re happy to announce the Alpha release of Compose Multiplatform support for iOS! This significant step forward allows you to create shared UIs across Android and iOS using Kotlin and the powerful foundation of Jetpack Compose. 📱 Compose Multiplatform expands upon Jetpack Compose by offering a unified experience across multiple platforms while maintaining the familiar API structure. We invite you to try it out and share your experiences, feedback, and questions here or in our dedicated #compose-ios channel. Learn more in the blog post. Happy coding! 🚀