We’re happy to announce the release of Kotlin 1.3.20, a new bug fix and tooling update for Kotlin 1.3. In addition to improvements to the compiler and IDE, this version:
Allows running Gradle tasks in parallel within a single project
Allows building multiplatform projects via Gradle Kotlin DSL
Brings improvements for inline classes
Introduces a separate command line tool for Kapt
Enables incremental compilation for Kotlin/JS by default
Brings improvements to Kotlin/Native
As always, we’d like to thank our numerous external contributors. The complete list of changes for this release can be found in the change log. Let’s dive in!
Our Kotlin community is growing fast; the number of users has increased by almost 3 times this year. The feedback you give is very important to us both as newcomers who have just started using Kotlin in 2018 and as experienced Kotlin users.
If you’re still hesitant about using Kotlin, we would like to know why. Your responses are very appreciated and important to us too.
If you filled out the survey last year, thank you! To make sure we are keeping our information up to date it would be really helpful for us if you could, please, do it again this year. We’ve added a few new questions and modified the options available to respond with based on the last year’s results and the new technologies which have appeared in 2018.
Please, could you kindly give us five minutes of your time and fill out the following survey.
Thank you!
By providing us with your details, this is not automatic consent for us to use your name, application, or company name. Your information is kept strictly confidential. We will always ask for written confirmation from you before we would ever try to use it.
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.
The Gradle Kotlin DSL Primer user manual chapter is the best place to start learning more: it will cover all the basics and answer most of your questions.
Last but not least, the Gradle documentation contains build script excerpts that demonstrate both the Groovy DSL and the Kotlin DSL. This is the best place to find how to all things with each DSL; and it covers all Gradle features.
Again, a big thank you to all who helped make this a reality!
Feedback wanted
Community involvement has been instrumental to reach 1.0. It is also crucial going forward.
We want to know what you think works well or poorly in the Kotlin DSL. Feedback on the IDE experience, logging, and everything in between is welcome. Please discuss through the Kotlin DSL issue tracker or the #kotlin-dsl channel on Gradle Community Slack (which you can join using this link).
The KotlinConf 2018 videos and their accompanying slides are all now available on the schedule on the website. In addition to this, there are two playlists on the JetBrains TV channel which cover day one and day two. The pictures from the event have been uploaded too. Check out the picture gallery, and try and find yourself, your friends, and your colleagues, in some of the biggest highlights from the event!
JetBrains is hosting two webinars on Kotlin 1.3 this December. Both events aim to explore the most common use cases and the challenges in adopting Coroutines, Kotlin/Native, and Multiplatform Projects.
Andrey Breslav will answer the questions you have on Kotlin 1.3 and our future plans during the Q&A session. To ask your questions, use #kotlinask_13 on Twitter or use YouTube chat during the webinar.
Both events are free to attend and will be broadcast on the JetBrains TV YouTube channel. To get the link, please register for the webinar and we will notify you by email.
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 ground up using coroutines, which make it possible to express complex asynchronous constructs as if they were simple sequential code. Coroutines are also quite efficient at runtime. In addition, the use of Kotlin features allows us to provide a domain-specific language (DSL) — a concise and developer-friendly API for configuring your application with no magic, just code.
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 platforms so one can share business logic between such components as Android and iOS apps. Servers can share logic with web and mobile clients too, and multiplatform libraries make everyday tasks easily portable.
We’ll organize a series of webinars covering major features of 1.3. Subscribe here:
Kotlin Coroutines are no longer experimental. Check out the Overview page with more information on how to get started
Multiplatform Projects
Take advantage of Kotlin’s code sharing abilities across platforms with Multiplatform Projects.
Kotlin/Native is now in beta
After several years of development, Kotlin/Native hits beta. Learn everything about Kotlin/Native and how it can help you target different platforms.
New revamped playground
The online environment for trying out and learning Kotlin has a brand new look, new functionality, and an entire new section of “Kotlin by Example”.
Finally, whether you’re new to Kotlin or an existing user, check out the Learning Page for a list of resources available to you.
The Kotlin Foundation
JetBrains and Google have created the Kotlin Foundation that was announced last year at Google I/O.
How to try Kotlin 1.3 RC
In Maven/Gradle: Add https://dl.bintray.com/kotlin/kotlin-eap as a repository for the build script and your projects. Use 1.3.0-rc-146 as the version number for the compiler plugin and the standard library.
In IntelliJ IDEA: Go to Tools → Kotlin → Configure Kotlin Plugin Updates, select “Early Access Preview 1.3” in the Update channel drop-down list, and then click Check for updates.
We’re very excited to be able to live stream KotlinConf 2018. During the entire two days, we will be broadcasting an entire track. The keynote will kick off at 9 am CEST.
There are less than 10 days left until KotlinConf 2018. The event team has been working so hard over the whole of the last year to put together 2 days of sessions, and a full day of workshops for over 1200 attendees. Today there is one more exciting announcement to make for the event.
