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@renovate renovate bot commented Nov 3, 2025

This PR contains the following updates:

Package Change Age Confidence
@rsbuild/core (source) 1.5.17 -> 1.6.0 age confidence
@rslib/core (source) ^0.14.0 -> ^0.17.0 age confidence

Release Notes

web-infra-dev/rsbuild (@​rsbuild/core)

v1.6.0

Compare Source

🎉 See Announcing Rspack 1.6 for more details.

What's Changed

New Features 🎉
Performance 🚀
Bug Fixes 🐞
Refactor 🔨
Document 📖
Other Changes

New Contributors

Full Changelog: web-infra-dev/rsbuild@v1.5.17...v1.6.0

web-infra-dev/rslib (@​rslib/core)

v0.17.0

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Highlights 💡
Improved ESM output

Optimizing ESM output has long been one of the key challenges faced by Rspack. Previously, we relied on module concatenation to optimize ESM outputs, but that approach had several limitations:

  • Impure output – The generated files contained Rspack's runtime code.
  • Prone to errors – Some modules could not be correctly concatenated, leading to unexpected runtime issues.
  • Limited code-splitting support – Split bundles became complex and difficult to analyze or optimize statically.

To address these issues once and for all, we introduced an experimental plugin called EsmLibraryPlugin, purpose-built for constructing clean and efficient ESM libraries:

  • Full control over the bundling process – All modules are linked during compilation, eliminating reliance on Rspack's runtime.
  • Code-splitting support – Code after splitting can be statically analyzed and is tree-shaking friendly.

The image below compares the code splitting output before and after using this plugin — the left side shows the previous output, while the right side shows the cleaner output produced by EsmLibraryPlugin:

Rspack 1.6 ESM output diff

In Rslib, the EsmLibraryPlugin is now integrated out-of-the-box with experiments.advancedEsm enabled to generate ESM output that is high-quality, more friendly to static analysis, and supports code splitting.

export default {
  lib: [
    {
      format: 'esm',
      bundle: true,
      experiments: {
        advancedEsm: true,
      },
    },
  ],
};

[!TIP]
Currently this option only takes effect in bundle mode when format is 'esm'.

What's Changed
New Features 🎉
  • feat: introduce experiments.advancedEsm with Rspack's EsmLibraryPlugin by @​JSerFeng in #​1273
Other Changes
New Contributors

Full Changelog: web-infra-dev/rslib@v0.16.1...v0.17.0

v0.16.1

Compare Source

What's Changed

Bug Fixes 🐞
Other Changes

Full Changelog: web-infra-dev/rslib@v0.16.0...v0.16.1

v0.16.0

Compare Source

Highlights 💡

Additional build CLI options

The Rslib build command now supports additional CLI options that take precedence over configuration file settings, and can even be used without any configuration file entirely.

For example: rslib build --entry index.ts --minify --tsconfig tsconfig.build.json.

Usage:
  $ rslib build

Options:
  -w, --watch            turn on watch mode, watch for changes and rebuild
  --entry <entry>        set entry file or pattern (repeatable)
  --dist-path <dir>      set output directory
  --bundle               enable bundle mode (use --no-bundle to disable)
  --format <format>      specify the output format (esm | cjs | umd | mf | iife)
  --syntax <syntax>      set build syntax target (repeatable)
  --target <target>      set runtime target (web | node)
  --dts                  emit declaration files (use --no-dts to disable)
  --externals <pkg>      add package to externals (repeatable)
  --minify               minify output (use --no-minify to disable)
  --clean                clean output directory before build (use --no-clean to disable)
  --auto-extension       control automatic extension redirect (use --no-auto-extension to disable)
  --auto-external        control automatic dependency externalization (use --no-auto-external to disable)
  --tsconfig <path>      use specific tsconfig (relative to project root)

What's Changed

New Features 🎉
Bug Fixes 🐞
Document 📖
Other Changes

Full Changelog: web-infra-dev/rslib@v0.15.1...v0.16.0

v0.15.1

Compare Source

What's Changed

Bug Fixes 🐞
Document 📖
Other Changes

Full Changelog: web-infra-dev/rslib@v0.15.0...v0.15.1

v0.15.0

Compare Source

Highlights 💡

Preserve JSX

Rslib supports setting the JSX runtime to 'preserve' to leave JSX syntax unchanged without transforming it, which is useful when you expect JSX to be left as is in library development.

Preserve JSX

See JSX transform - React for more details.

What's Changed

New Features 🎉
Bug Fixes 🐞
Document 📖
Other Changes

Full Changelog: web-infra-dev/rslib@v0.14.0...v0.15.0


Configuration

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This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot added the dependencies label Nov 3, 2025
@renovate renovate bot merged commit a80b185 into main Nov 3, 2025
3 checks passed
@renovate renovate bot deleted the renovate/build-tools branch November 3, 2025 09:53
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