Time flies, and today we want to present a few more powerful features of Kotlin 1.4 for your preview. Learn what Kotlin 1.4-M2 has in store, try it, and enjoy its features before they are officially released in Kotlin 1.4. We thank all of you who tried our first preview of Kotlin 1.4, shared your feedback, and helped make Kotlin better! Also many thanks to those who have already tried Kotlin 1.4-M2’s standard library improvements announced in our previous post. In this post, we'll highlight the new features and key improvements available in 1.4-M2: Support for sharing code in several ta

We are happy to announce the first preview version of the new major release: Kotlin 1.4-M1. A few months ago, we published an announcement of what to expect in Kotlin 1.4. As the release approaches, we're offering you a preview in which you can try some of the new things for yourself. In this post, we'll highlight the following new features and key improvements available in 1.4-M1: A new, more powerful type inference algorithm is enabled by default. Contracts are now available for final member functions. The Kotlin/JVM compiler now generates type annotations in the bytecode for Java 8+ t

Today we're happy to present to you the latest version of Kotlin – 1.3.70. This incremental release doesn’t provide any major new features. However, we've tried our best to improve the existing functionality, fix issues, and even add experimental things for you to try. Here are the highlights of Kotlin 1.3.70: New functions and classes for Kotlin collections in the standard library. Various improvements in the IntelliJ Kotlin plugin: improved *.gradle.kts support, testing, debugging, completion, and so on. The Kotlin/JVM compiler now generates type annotations in the bytecode for Java 8 a

Ktor 1.3 was released recently, and we’re happy to share the details with you in this blog post. Ktor consists of two parts: the server engine and a flexible asynchronous HTTP client. The current release focuses mainly on the HTTP client. Here you can find the complete changelog for this release. The client is a multiplatform library that supports JVM, JS, Android, and iOS and is now often used in cross-platform mobile applications. Our main goal for the next releases is to make the server engine multiplatform, too. The other areas we’re going to work on are: Improving integration w

During the keynote at KotlinConf, Andrey highlighted our strategic view on the current areas of focus for the evolution of Kotlin, and our plans for Kotlin 1.4 which will be released some time next year. Watch the entire keynote below https://youtu.be/0xKTM0A8gdI Our vision is for Kotlin to be a reliable companion for all your endeavors, a default language choice for your tasks. To accomplish this, we’re going to make it shine on all platforms. Multiple case studies from companies well-known in the industry show that we are making good progress in this direction. Kotlin 1.4 that is going t

We’re happy to present the new release today, Kotlin 1.3.60. In addition to the quality improvements, this version focuses on: Optimizing the comparison of inline classes. Tooling improvements for debugging, J2K converter, and Gradle scripts written in Kotlin. Support for more Kotlin/Native platforms/targets. Improving the Kotlin/MPP IDE experience. For Kotlin/JS, adding support for source maps and improving the platform test runner integration. Preview for some already implemented features of Kotlin 1.4. You can find the complete list of changes in the change log. As always, we’re really

We’re happy to announce the release of Kotlin 1.3.50 today. In addition to the quality and tooling improvements, the main focus for this version has been on: Designing a new Duration and Time Measurement API (available for preview). Working on an improved Java-to-Kotlin converter. Experimental generation of external declarations for npm dependencies in Gradle Kotlin/JS projects (using Dukat). A separate plugin for debugging Kotlin/Native code in IntelliJ IDEA Ultimate. Java compilation support in multiplatform projects. You can find the complete list of changes in the change log. As always

We’re happy to present the new release today, Kotlin 1.3.40. In addition to the quality and tooling improvements the main focus for this version has been on: Gradle support for NPM, Yarn, and Webpack for Kotlin/JS Test runner improvements for multiplatform projects New type inference Performance and interoperability improvements for Kotlin/Native Also, new functions were added to the standard library in an experimental state. You can find the complete list of changes in the change log. As always, we’re really grateful to our external contributors. Let’s dive into the deta

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

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

We’re happy to announce the release of Kotlin 1.2.70, a new bugfix and tooling update for Kotlin 1.2. This release: Significantly improves incremental compilation for Kotlin/JS Marks a number of kotlin-stdlib-common annotations with @OptionalExpectation Contains native binaries built with Excelsior JET for the standalone Kotlin compiler Adds new refactorings, inspections, and intentions to the IntelliJ IDEA plugin Fixes a lot of known issues in the compiler and the IDE plugin and provides performance improvements The update is compatible with all versions of IntelliJ IDEA from 2017.3 to 2

We’re happy to announce the release of Kotlin 1.2.20, a new bugfix and tooling update for Kotlin 1.2. This update: Adds support for Gradle build cache Improves incremental compilation for Android and mixed Kotlin/Java projects Provides IDE support for the new Kotlin style guide Adds inlay hints in the editor for implicit parameters and receivers of lambdas, as well as values returned from lambdas Supports development mode in JavaScript DCE Gradle task Introduces new inspections, performance improvements and bug fixes in the IntelliJ plugin The update is compatible with all versions of Inte