This is a guest blog post from Paul Merlin software engineer for Gradle The recently released Gradle 5.0 includes the Gradle Kotlin DSL v1.0 which is now ready for widespread use. We want you to enjoy a build authoring experience with the benefits provided by Kotlin’s static type system in Intellij IDEA and Android Studio: auto-completion, smart content assist, quick access to documentation, navigation to source and context-aware refactoring. https://gradle.org/images/hello-kotlin-2.webm To view the video in Safari you may need to install the VLC Web Browser Plugin. In case you mis

As we work on Kotlin, we implement many features that help build idiomatic and high-performing APIs. We've been dreaming of seeing a Web framework that utilizes these features to the max. Today, we can finally say we've built that kind of framework! Please welcome Ktor, which has just reached 1.0. Ktor is a Kotlin framework for building asynchronous servers and clients in connected systems. It is being created by the Kotlin team, and as such, it takes full advantage of the language in order to provide a great developer experience and excellent runtime performance. Ktor is built from the gr

  You can read this blog post in other languages:   Today we are releasing Kotlin 1.3 together with a set of accompanying libraries, build tools, and learning materials! We develop Kotlin to be a good tool for all application developers, at all scales and on all platforms. In Kotlin 1.3 coroutines graduated to stable, making non-blocking code easy to read and write. Scalability has never been as approachable before! This release also brings Kotlin/Native Beta that compiles Kotlin code directly to native binaries. The multiplatform capabilities of Kotlin now cover all supported

We're proud to introduce Kotlin 1.3-RC, the latest preview and release candidate for 1.3.0. This release mostly contains critical bug-fixes related to the new language features. Other notable changes and announcements include: Ktor is wrapping up its API and looking forward to your feedback. Ktor is a framework for building web applications, HTTP services, mobile and browser applications. It's elegant, asynchronous and built on coroutines. The official code style is now used for all new projects. We also encourage you to migrate old projects to the official style. The main entrypoint can now

fun main(args : Array<String>) { println("Hello Kotliner!") println("Click this green button at the top right!") } Oh yes, this is a runnable Kotlin snippet embedded right in the blog post. Note that you can not only run it, but you can also change the code: // The code below doesn't compile. Add only one char to make it runnable again fun main(args : Array<String>) { val fix = "Kotlin " val me = "is great" println(fixme) } Cool, isn't it? Note that completion works too. Often you don't want to show all t

Greetings Kotlin fans! Ever since we announced interoperability with Objective-C for Kotlin/Native, we’ve been getting lots of questions about IDE support that would allow working on projects that mix Kotlin/Native and Swift/Objective-C. Today we are happy to announce that we are working on a Kotlin/Native plugin for AppCode! AppCode is our macOS-only IDE designed for iOS/macOS developers. It already supports the Xcode project model, running and debugging in simulators and on devices, and offers extensive support for Objective-C and Swift. So, it felt natural to add Kotlin/Native support to

We are pleased to announce Kotlin/Native v0.6 (Valentine’s Day release) of our toolchain. This is a major update, including the following features: Support for multiplatform projects in compiler and Gradle plugin Transparent Objective-C/Kotlin container classes interoperability Support first embedded target (STM32 board) Kotlin 1.2.20, Gradle 4.5 and Java 9 supported Smaller WebAssembly binaries (basic applications is around 160KiB now) CLion plugin update for CLion 2018.1 (fixed the issue with macOS platform libraries indexer) (more…)

This is a guest blog post from Eric Wendelin software engineer for Gradle A build cache allows Gradle to reuse task output from any previous invocation, including those from other machines. Kotlin 1.2.21 allows Kotlin projects to make use of build caching. The build cache works by storing compiled classes, test outputs, and other build artifacts in a cache, taking into account all task inputs, including input file contents, relevant classpaths, and task configuration. This frequently results in faster builds. The following chart shows aggregated build time with and without the build ca

Greetings Kotlin fans, A New Year is coming and we are truly happy to make the last announcement of 2017. We’ve just released the update for Kotlin/Native plugin for CLion. It brings support for Kotlin/Native platform v0.5 which was published recently. Your feedback is very important for us. Please report bugs and issues in the Kotlin bug tracker. Your questions are welcome on the #kotlin-native channel on Slack (get invited here). Wishing you all the magic and a happy New Year! Have a nice Kotlin!

Last week the webinar "Developing Multiplatform Projects in Kotlin 1.2" took place. Thanks to all participants for coming and good questions. Today we are happy to publish the recording of it. Don't hesitate to suggest more themes for new webinars in comments. See you next time! (more…)

Kotlin/Native is a brand new technology that compiles Kotlin directly to machine code and produces executables that can run without a virtual machine. At KotlinConf 2017, we announced a preview release of development tools for Kotlin/Native. While we have IntelliJ IDEA for working with Kotlin, Kotlin/Native integrates with technologies from the native world such as Clang and LLDB support. That's why JetBrains' choice for Kotlin/Native is CLion, our IDE for C and C++. To get started, download and install CLion 2017.3 (note that this version is at the early access preview stage for now). Next,

Hello! Every year we run the Kotlin Census survey so we can get the latest feedback from you, and how you are using Kotlin in your projects. If you still don’t use Kotlin, we would like to understand your reasons why and your opinion of the language is exceptionally important for us as well. If you filled out the survey last year, thank you, it would be really helpful if you could please do it again: we’re interested in the up-to-date information, we’ve also added a few new questions and response options based on last year’s results. As such, we’re asking you if you could kindly give us two