#Scala.js 1.22.0 is out! This release adds support for sbt 2.x, and officializes the support for WebAssembly as stable. It also comes with performance improvements and bug fixes. www.scala-js.org/news/2026/06...
Harness the Scala and JavaScript ecosystems to develop robust apps for browsers, serverless, and Node.js.
www.scala-js.org
#Scala.js 1.20.2 is released! It features more performance improvements and some bugfixes. www.scala-js.org/news/2026/01...
#Scala.js 1.21.0 is out! This release introduces several changes with compatibility concerns. We encourage you to pay particular attention to the release notes. www.scala-js.org/news/2026/04...
#Scala.js 1.20.1 is released! It features a number of performance improvements, both for the JavaScript and WebAssembly backends. www.scala-js.org/news/2025/09...
#Scala.js 1.19.0 is released! It contains significant performance improvements for the WebAssembly backend (it is now often faster than JS), native support for JS async/await, and a way to leverage Wasm's JavaScript Promise Integration (JSPI). Read more at www.scala-js.org/news/2025/04...
RFC: We intend to deprecate support for ECMAScript 5.1 in the next version of #Scala.js. If you are still relying on it, please weigh in on the PR and tell us why. The default has been ECMAScript 2015 since Scala.js v1.0.0. github.com/scala-js/sca...
The first edition recaps 2024’s biggest advancements:
✅ Named tuples in Scala 3
✅ Experimental WebAssembly backend in Scala.js
✅ Scala CLI as the new default runner for Scala
✅ Scala 3 build definitions in sbt 2.x (beta)
✅ Better Scala 3 support in IntelliJ Scala Plugin
… and much more!
🚀 Introducing Scala Highlights – a new quarterly newsletter!
Read it now 👉 scala-lang.org/highlights/2...