Announcing Scala.js 1.20.2 Harness the Scala and JavaScript ecosystems to develop robust apps for browsers, serverless, and Node.js.

#Scala.js 1.20.2 is released! It features more performance improvements and some bugfixes. www.scala-js.org/news/2026/01...

Announcing Scala.js 1.20.1 Harness the Scala and JavaScript ecosystems to develop robust apps for browsers, serverless, and Node.js.

#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...

Announcing Scala.js 1.19.0 Harness the Scala and JavaScript ecosystems to develop robust apps for browsers, serverless, and Node.js.

#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...

Announcing Scala Days 2025

Time to meet again 🥰

🙌 Scala Days 2025
🗓️ 19-21 August 2025
📍Lausanne, Switzerland

🌐 Business-driven
♥️ Community-infused
🦸 Family-friendly

Looking forward to welcoming you in August!

scala-lang.org/blog/2025/02...

RFC: Deprecate support for ECMAScript 5.1. by sjrd · Pull Request #5128 · scala-js/scala-js That support is the biggest source of alternative code paths and polyfills in our codebase. The polyfills and other alternative implementations we need to support ES 5.1 include: Math.fround to su...

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!

Scala Highlights from 2024

🚀 Introducing Scala Highlights – a new quarterly newsletter!
Read it now 👉 scala-lang.org/highlights/2...

Announcing Scala.js 1.18.2 Harness the Scala and JavaScript ecosystems to develop robust apps for browsers, serverless, and Node.js.

#Scala.js 1.18.2 is released! It contains one more backward compatibility fix, improves compatibility with Scala 2.13.16, and improves the generated code for js.Dynamic.literal() with Scala 2.13.x. www.scala-js.org/news/2025/01...

Announcing Scala.js 1.18.1 Harness the Scala and JavaScript ecosystems to develop robust apps for browsers, serverless, and Node.js.

To start off 2025 and our new Blueky account, we are pleased to announce the release of #Scala.js 1.18.1 (instead of the expected 1.18.0). This is mostly a bugfix release. It also contains internal improvements that will support future enhancements. www.scala-js.org/news/2025/01...