v0.21

In this release, our conformance has grown to 94.12% in the official ECMAScript Test Suite (Test262).

Highlights

• Polished our implementation of the Temporal proposal to reach ~97% conformance on Temporal-related tests.
• Added support for span nodes and error backtraces.
• Enhanced Boa's compatibility with async Rust by revamping JobQueue and asyncifying ModuleLoader.
• Introduced a new set of macros to facilitate creating ECMAScript values, classes and modules from Rust code.
• Implemented several runtime features in boa_runtime, including fetch, setTimeout, and queueMicrotask.
• Added some support for conformance testing runtime features against the Web Platform Tests (WPT).
• JsValue now uses a Nan-boxing representation, reducing the memory footprint of the engine.
• Migrated from a stack-based VM to a register based VM.

New built-ins

• Implemented Atomics.waitAsync.
• Implemented new Set methods.
• Implemented Float16 support in TypedArray, Dataview and Math built-ins.
• Implemented Error.isError.
• Implemented Math.sumPrecise.
• Implemented Array.fromAsync.

Changelog

v0.20

In this release, our conformance has grown up to 89.92% in the official ECMAScript Test Suite (Test262), we made more progress in our implementation of the Temporal proposal, and we overhauled our old benchmark suite, among other things.

Changelog

Nightly Release

This is the location for our nightly releases

v0.19.1

What's Changed

Bug Fixes

• Implement new spec changes for AsyncGenerator by @jedel1043 in #3950
• Allow dead code for code that is newly detected as unused by @hansl in #3984
• Allow warnings when running CI on release branches by @jedel1043 in #3990

Internal Improvements

• Add spec edition 15 to the tester by @jedel1043 in #3957
• Enable CI for release branches by @jedel1043 in #3987

Full Changelog: v0.19...v0.19.1

v0.19

In this release, our conformance has grown up to 86% in the official ECMAScript Test Suite (Test262), we made more progress in our implementation of the Temporal proposal, and we overhauled our old benchmark suite, among other things.

Changelog

v0.18

In this release, our conformance has grown up to 85% in the official ECMAScript Test Suite (Test262), and performance has been improved, among many other things.

You can find more information in the release announcement

Changelog

v0.17.3

In this release, we've fixed our build for compiling Boa without Intl utils.

Commits

• fda03ea: Fix Intl build
• 40241c0: Bump version to 0.17.2
• 747c295: Fix individual compilation of boa_parser
• 6008683: Bump version to 0.17.3

v0.17.1

In this release, we've backported a fix for #3299 in order to fix builds that resolve ICU4X's version to 1.3.0.

Commits

• 3379753: Fix build on most recent crates.io version:
• 987ddd2: Replace #[deny] with #[warn] (#3309)
• 752dbd6: Reintroduce publish CI job (#3308)
• 3379753: Bump version to 0.17.1

v0.17

In this release, our conformance has grown up to 78.74% in the official ECMAScript Test Suite (Test262), and performance has been improved, among many other things.

You can find more information in the release announcement

Changelog

v0.16

In this release, our conformance has grown up to 74.53% in the official ECMAScript Test Suite (Test262), and performance has been improved, among many other things.

You can find more information in the release announcement

Changelog