> For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt.

# Announcing Rsbuild 0.3

_January 10, 2024_


![Jiahan Chen](https://github.com/chenjiahan.png)

Jiahan Chen

[](https://github.com/chenjiahan)

@chenjiahan

![9aoy](https://github.com/9aoy.png)

9aoy

[](https://github.com/9aoy)

@9aoy

![](https://assets.rspack.rs/rsbuild/rsbuild-banner-v0-3.png)

Rsbuild 0.3 version has upgraded Rspack to 0.5 and now supports Module Federation. In addition, it includes some incompatible API changes. Please refer to the current documentation for upgrading.

## Rspack 0.5

Bump Rspack to v0.5.0, see: [Rspack 0.5 Release Announcement](https://rspack.rs/blog/announcing-0-5)

Notable changes:

- [Module Federation added to Rspack](https://rspack.rs/blog/module-federation-added-to-rspack)
- [Remove deprecated builtins options](https://rspack.rs/blog/announcing-0-5#make-swchelpers-and-react-refresh-as-peerdependencies)

## TOML / YAML plugin

The need to import TOML and YAML in JS is not common, so Rsbuild core will no longer support import TOML and YAML by default in v0.3.0.

The TOML and YAML plugin will become an independent plugin:

- TOML:

```ts
// rsbuild.config.ts
import { pluginToml } from '@rsbuild/plugin-toml';

export default {
  plugins: [pluginToml()],
};
```

- YAML:

```ts
// rsbuild.config.ts
import { pluginYaml } from '@rsbuild/plugin-yaml';

export default {
  plugins: [pluginYaml()],
};
```

## JavaScript API

Some JavaScript APIs have changed:

- The `printURLs` option of `rsbuild.startDevServer` is deprecated, use [server.printUrls](/config/server/print-urls.md) instead.
- The `logger` option of `rsbuild.startDevServer` is deprecated, use [logger.override()](/api/javascript-api/core.md#logger) instead.

## Node target

- Adjust default browserslist for node target, from `node >= 14` to `node >= 16`.
- The default value of `output.distPath.server` is changed from `'bundles'` to `'server'`