Author Archives: Andrey Breslav

About Andrey Breslav

Andrey is the lead language designer of Kotlin at JetBrains.

Kotlin Future Features Survey Results

With all the exciting recent events, we had to postpone the publication of the Future Features Survey results. Sorry about that. Better late than never, this blog post summarizes what we learned from the survey. To recap, the Future Features … Continue reading

Posted in Uncategorized | 64 Comments

Kotlin/Native Tech Preview: Kotlin without a VM

We are happy to announce the first Technology Preview of Kotlin/Native that compiles Kotlin directly to machine code. The Kotlin/Native compiler produces standalone executables that can run without any virtual machine. It is not a fully functional release yet, but … Continue reading

Posted in Releases, Roadmap | Tagged , | 92 Comments

Kotlin 1.1 Beta Is Here!

Congratulations! Today Kotlin 1.1 has reached Beta, and this means that it’s time to try it out, there’s still time to give us your feedback (and we really need it!), the release is coming fairly soon. We’ve seen a lot … Continue reading

Posted in Releases | Tagged | 56 Comments

First glimpse of Kotlin 1.1: Coroutines, Type aliases and more

While Kotlin 1.0.X releases keep delivering incremental updates and tooling features, we are working on the new language features in Kotlin 1.1. Today we are presenting the first preview version of 1.1, it’s far from Beta, but the brave and … Continue reading

Posted in Releases | 51 Comments

Kotlin 1.0.1 is Here!

It’s been a month since we released Kotlin 1.0, and while our user base roughly doubled during this time, we prepared the first bugfix update. Kotlin 1.0.1 starts a series of 1.0.X versions delivering safe bug fixes and performance improvements … Continue reading

Posted in Releases | 12 Comments

Kotlin 1.0 Released: Pragmatic Language for JVM and Android

This is it. 1.0 is here! It’s been a long and exciting road but we’ve finally reached the first big 1.0, and we’re celebrating the release by also presenting you with the new logo: See discussions on Reddit and Hacker … Continue reading

Posted in Releases | 111 Comments

Kotlin 1.0 Release Candidate is Out!

Finally, Kotlin has graduated the Beta and we are happy to present the Release Candidate Build! NOTE: as we announced earlier, RC requires all code to be recompiled to make sure no code compiled with older versions is kept around … Continue reading

Posted in Releases | 41 Comments

Kotlin 1.0 Beta 3 is Out!

We are glad to present another update of Kotlin 1.0 Beta. We are working towards finalizing the standard library and getting rid of old deprecated constructs in the language, as well as bug fixes, performance improvements and future-proof checks. Full … Continue reading

Posted in Releases | 51 Comments

Kotlin 1.0 Beta 2 is Out!

The first update to our Beta is here! We are stabilizing, so it’s mostly bug-fixing and changes to the standard library. Language changes We are now enforcing single-instantiation inheritance constraint on type parameters: the same T can not have both … Continue reading

Posted in Releases | 36 Comments

The Kotlin Language: 1.0 Beta is Here!

We are extremely pleased to present Kotlin 1.0 Beta for JVM and Android! To recap: Kotlin is a modern programming language that JetBrains has been working on for quite some time now. This post gives an overview of where we … Continue reading

Posted in Releases | 35 Comments