State of the Browser 2026 🎉

28th Feb in London 🇬🇧

@jason-williams.co.uk will present "It's about time" discussing the new JavaScript Temporal API ⌚

Boa v0.21 has been released! Plenty of new features, builtins and performance improvements.

Blog post with details
boajs.dev/blog/2025/10...

Discussions:
Lobste.rs: lobste.rs/s/upi3xa/boa...

news.ycombinator.com/item?id=4567...

www.reddit.com/r/rust/comme...

Temporal_rs has been released!!!

This is the first public release of Temporal_rs, a Rust implementation of the Temporal API powering Boa, Kiesel, V8 plus other engines.

This will be shipping in Chromium soon

More info in our blog post: boajs.dev/blog/2025/09...

Boa's temporal_js may turn out to be one of the most widely used implementations of the TC39 Stage 3 Temporal API 👍

An independent open source project having impact on the whole JS ecosystem.

The Boa community has come along way since it was started by @jason-williams.co.uk seven years ago.

temporal_rs is a Rust library implementing the upcoming ECMAScript proposal Temporal. Not only is it being used in Boa but also V8 and other engines. You can find out more about the implementation process below.

Jonas Haukenes, Mikhail Barash & Shane Carr: Cross-Engine Contributions at Scale: How newcomers accelerated Temporal and Upsert in SpiderMonkey, V8, and Boa

Jonas Haukenes, Mikhail Barash and @sffc.bsky.social giving case studies of contributing to JS engines…and sharing a third-party library (in Rust!) to simplify implementation of Temporal

We have released v0.20!

This release includes more features, runtime additions, performance optimizations and more.

boajs.dev/blog/2024/12...

CC @thisweekinrust.bsky.social

Hello World!