April 22, 2026

#Announcing Rsbuild 2.0

TODO

#Pure ESM package

@rsbuild/core is now published as a pure ESM package, and its CommonJS build output has been removed. This change only affects how Rsbuild itself is published, reducing the installation size by about 500 KB.

In Node.js 20 and later, the runtime natively supports loading ESM modules via require(esm). As a result, for most projects that use Rsbuild through its JavaScript API, this change should have no practical impact and does not require any code modifications.