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Releases: web-infra-dev/rspack

v2.0.5

28 May 06:42
@JSerFeng JSerFeng
v2.0.5
b294ed6
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Highlights

Support import.meta.glob

Rspack now supports import.meta.glob, a file-system import API already available in Vite and Turbopack. We chose to align with this ecosystem behavior.

const pages = import.meta.glob('./pages/**/*.tsx', {
  eager: true,
  import: 'default',
  query: { layout: 'docs' },
  base: './pages',
});

More controllable CSS module parsing

CSS modules can now control parsing for @import, animations, custom idents, and dashed idents through module.parser, so projects can match existing CSS Modules behavior more closely while migrating to Rspack.

export default {
  module: {
    parser: {
      'css/module': {
        import: true,
        animation: true,
        customIdents: true,
        dashedIdents: true,
      },
    },
  },
};

What's Changed

New Features 🎉

Performance 🚀

Bug Fixes 🐞

Document 📖

Other Changes

Full Changelog: v2.0.4...v2.0.5

Contributors

stormslowly, renovate, and 9 other contributors
Assets 2
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v2.0.4

20 May 12:49
@ahabhgk ahabhgk
v2.0.4
744af1e

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v2.0.4

Highlights 💡

  • Inline const with module declarations (#14032): Previously, Rspack only inlined constant exports from leaf modules in the module graph. Now constant exports from any module can be inlined, even when that module also imports or re-exports other modules. In rare circular-reference cases this can make a TDZ error disappear, but we do not expect real projects to rely on TDZ errors, so Rspack prioritizes the optimization.

    // constants.js
import './setup';

export const ENABLE_EXPERIMENT = false;

// entry.js
import { ENABLE_EXPERIMENT } from './constants';

if (ENABLE_EXPERIMENT) {
  runExperiment();
}

// Before: constants.js is not a leaf module, so the branch could keep
// reading the imported binding.
if (ENABLE_EXPERIMENT) {
  runExperiment();
}

// Now: the constant can still be inlined, so dead branches are easier
// to remove.
if (false) {
  runExperiment();
}

  • Tree shake namespace default reexport (#13980): Previously, the import * as a from './a'; export default a; pattern did not tree-shake a through the default export. Now Rspack further analyzes the default-exported namespace object and can remove unused exports from the original namespace module.

    // a.js
export function used() {}
export function unused() {}

// bridge.js
import * as a from './a';
export default a;

// app.js
import a from './bridge';

a.used();

// Before: both used and unused could be kept in the bundle.
// Now: unused can be tree-shaken.

  • CSS global module type (#13988): css/global is useful when most selectors in a stylesheet should stay global, but you still want CSS Modules features for selected local selectors. This makes it easier to migrate existing global CSS gradually without turning every class name into a local scoped name.

    export default {
  module: {
    rules: [{ test: /\.global\.css$/i, type: 'css/global' }],
  },
};
    /* style.global.css */
.button {
  color: red;
}

:local(.title) {
  font-weight: 600;
}

    .button stays global, while .title is renamed as a local class.

  • CSS Modules local ident options (#14009): CSS Modules now support local ident hash options such as hash function, digest, digest length, and salt. These options make generated class names more configurable and better aligned with webpack-compatible CSS Modules setups.

    export default {
  module: {
    rules: [{ test: /\.module\.css$/i, type: 'css/module' }],
    generator: {
      'css/module': {
        localIdentName: '[name]__[local]__[hash]',
        localIdentHashFunction: 'xxhash64',
        localIdentHashDigest: 'hex',
        localIdentHashDigestLength: 8,
        localIdentHashSalt: 'my-salt',
      },
    },
  },
};

What's Changed

New Features 🎉

Performance 🚀

Bug Fixes 🐞

  • fix(rsc): skip client entry mismatch without injections by @SyMind in #14018
  • fix(cli): write logger trace output to file by default by @hardfist in #14022
  • fix(ci): repair broken rustup shim chain on macos-latest by @stormslowly in #14040
  • fix(stats): preserve sub-millisecond precision in logger time entries by @stormslowly in #14049
  • fix: import.meta.filename/dirname escape on windows by @ahabhgk in #14050
  • fix(rsc): group client chunks by server-entry ownership by @SyMind in #13880
  • fix(rslib): emit type-only isolated dts dependencies by @Timeless0911 in #14037
  • fix(copy-plugin): support JS input file system for glob copies by @intellild in #14023
  • fix: keep buildHttp imports bundled for node target by @SyMind in #14086

Document 📖

Other Changes

Full Changelog: v2.0.3...v2.0.4

Contributors

stormslowly, renovate, and 10 other contributors
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v2.0.3

12 May 10:51
@LingyuCoder LingyuCoder
v2.0.3
9da7d0b

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v2.0.3

What's Changed

Performance Improvements ⚡

New Features 🎉

  • feat: expose dependency import attributes by @hardfist in #13947
  • feat(rsc): support configurable CSS link props by @SyMind in #13945
  • feat(externals): add modern-module externals type by @JSerFeng in #13861
  • feat: support import.meta.rspackRsc by @SyMind in #13840
  • feat: drop inactive branch dependencies for inlined booleans by @JSerFeng in #13863
  • feat(sourcemap): support relative paths in inline source maps by @SyMind in #13974

Bug Fixes 🐞

Refactor 🔨

  • refactor(rstest): expose injectDynamicImportOrigin.functionName and resolve callee once by @fi3ework in #13930
  • refactor: use rspack util base64 by @intellild in #13978
  • refactor(core): remove unused exports final name metadata by @LingyuCoder in #14003

Document Updates 📖

Other Changes

Full Changelog: v2.0.2...v2.0.3

Contributors

stormslowly, renovate, and 9 other contributors
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v2.0.2

06 May 13:43
@SyMind SyMind
v2.0.2
b7d4de7

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v2.0.2

What's Changed

Performance Improvements ⚡

New Features 🎉

Bug Fixes 🐞

  • fix: handle weak dynamic imports without async chunks by @hardfist in #13848
  • fix(source-maps): avoid loader request in lightningcss source maps by @zalishchuk in #13830
  • fix(rsc): handle server component css by server entry scope by @SyMind in #13844
  • fix: sort ConcatenatedModule export keys for deterministic builds by @mango766 in #13425
  • fix: use index maps for concatenated export rendering by @JSerFeng in #13875
  • fix(core): ignore optional hono type imports by @chenjiahan in #13883
  • fix(rsc): scope server-entry CSS collection by entry by @SyMind in #13878
  • fix(rslib): make isolated dts metadata relative by @Timeless0911 in #13884
  • fix(deps): update http-proxy-middleware to 4.0.0-beta.6 by @Darshan808 in #13909
  • fix(plugin-library): skip unused exports in ModuleLibraryPlugin by @SAY-5 in #13920
  • fix: expose numeric chunk ids in JS APIs by @JSerFeng in #13839
  • fix(rsc): support void onServerComponentChanges callbacks by @SyMind in #13885
  • fix: align module external remapping with webpack by @JSerFeng in #13802

Document Updates 📖

Other Changes

  • chore: move check source changed jobs to self-hosted runner by @hardfist in #13862
  • chore: release version 2.0.1 by @intellild in #13860
  • chore(benchmark): disable minimize for bundle codspeed by @LingyuCoder in #13871
  • chore(deps): update dependency happy-dom to ^20.9.0 by @renovate[bot] in #13833
  • chore(deps): update dependency toml to v4 by @renovate[bot] in #13892
  • chore(deps): update dependency image-minimizer-webpack-plugin to v5 by @renovate[bot] in #13891
  • chore(deps): update dependency lint-staged to ^16.4.0 by @renovate[bot] in #13887
  • chore(deps): update dependency @module-federation/runtime-tools to v2.4.0 by @renovate[bot] in #13886
  • chore(deps): update dependency cspell to v10 by @renovate[bot] in #13897
  • chore(deps): update dependency @shikijs/transformers to v4 by @renovate[bot] in #13896
  • chore(deps): update dependency mermaid to ^11.14.0 by @renovate[bot] in #13894
  • chore(deps): update dependency terser-webpack-plugin to ^5.5.0 by @renovate[bot] in #13889
  • chore(deps): update dependency ws to ^8.20.0 by @renovate[bot] in #13895
  • chore(deps): update patch npm dependencies by @renovate[bot] in #13900
  • build: replace webpack-merge with rspack-merge by @intellild in #13907
  • chore(deps): update rust crate rayon to 1.12.0 by @renovate[bot] in #13904
  • chore(deps): update rust crate oneshot to 0.2.1 by @renovate[bot] in #13903
  • chore(deps): update dependency exit-hook to v5 by @renovate[bot] in #13906
  • chore(deps): update yarn to v4.14.1 by @renovate[bot] in #13905
  • chore(deps): update dependency memfs to v4.57.2 by @renovate[bot] in #13888
  • chore(deps): update dependency watchpack to v2.5.1 by @renovate[bot] in #13890
  • chore(deps): update dependency axios to ^1.16.0 by @renovate[bot] in #13911
  • chore(deps): update rust crate hashlink to 0.11.0 by @renovate[bot] in #13912
  • chore(deps): update rust crate indexmap to 2.14.0 by @renovate[bot] in #13913
  • chore(deps): remove http-proxy-middleware dts patch by @chenjiahan in #13919
  • chore(deps): update dependency @discoveryjs/json-ext to v1 by @renovate[bot] in #13916
  • chore(deps): update napi by @renovate[bot] in #13899

New Contributors

Full Changelog: v2.0.1...v2.0.2

Contributors

renovate, LingyuCoder, and 14 other contributors
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v2.0.1

28 Apr 10:50
@intellild intellild
v2.0.1
69947a7

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v2.0.1

What's Changed

Performance Improvements ⚡

New Features 🎉

  • feat: rsc entry debug comments by @SyMind in #13812
  • feat(pure-functions): accept any top-level binding and trust consumer-side hints by @JSerFeng in #13810

Bug Fixes 🐞

Refactor 🔨

  • refactor: make parser_and_generator readonly by @hardfist in #13785
  • refactor: remove prefetch functions for exports info by @ahabhgk in #13817
  • refactor: cache logging to use atomic logger counters by @ahabhgk in #13825

Document Updates 📖

Other Changes

New Contributors

Full Changelog: v2.0.0...v2.0.1

Contributors

stormslowly, renovate, and 9 other contributors
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v2.0.0

22 Apr 05:38
@LingyuCoder LingyuCoder
v2.0.0
0d18db5

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v2.0.0

⚡️ Rspack 2.0 Released! ⚡️

What's Changed

Breaking Changes 🛠

Performance Improvements ⚡

Read more

Contributors

martinjlowm, stormslowly, and 34 other contributors
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v2.0.0-rc.3

17 Apr 03:22
@chenjiahan chenjiahan
v2.0.0-rc.3
e13ed94

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v2.0.0-rc.3

What's Changed

New Features 🎉

Bug Fixes 🐞

Refactor 🔨

  • refactor(browser)!: remove rspack_browser crate and require @rspack/browser to run in a Worker by @CPunisher in #13712

Document Updates 📖

Other Changes

Full Changelog: v2.0.0-rc.2...v2.0.0-rc.3

Contributors

renovate, LingyuCoder, and 6 other contributors
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v2.0.0-rc.2

14 Apr 10:49
@LingyuCoder LingyuCoder
v2.0.0-rc.2
b510148

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v2.0.0-rc.2

What's Changed

Performance Improvements ⚡

  • perf(code-splitting): reuse side effects evaluation state by @LingyuCoder in #13668
  • perf: trace hook interception only pays off once global tracing is already on by @SyMind in #13689

New Features 🎉

  • feat(create-rspack): modernize starter template configs by @chenjiahan in #13645
  • feat(split-chunks): support enforceSizeThreshold option by @jaehafe in #13576
  • feat(resolve): support #/ subpath alias import by @stormslowly in #13633
  • feat(create-rspack): reuse rspack config in rstest templates by @chenjiahan in #13666
  • feat: enforce macro-generated implemented_hooks in debug builds by @SyMind in #13677
  • feat: only apply require-* parser plugins to js-auto/js-dynamic by @SyMind in #13678
  • feat: skip building side-effect-only imports in make by @ahabhgk in #13688
  • feat: add compiler.hooks.shouldRecord for NoEmitOnErrorsPlugin by @stormslowly in #13630
  • feat(cli): use jiti to load typescript config by @hardfist in #13690

Bug Fixes 🐞

  • fix(browser): import napi symbols from binding by @CPunisher in #13641
  • fix(core): fix cjs export function tree shaking by @ahabhgk in #13643
  • fix(config): tighten rule loader/use typings by @kyungilcho in #13514
  • fix: add @emnapi/core and @emnapi/runtime as dependencies by @CPunisher in #13665
  • fix(loader): preserve additionalData in builtin loaders by @ahabhgk in #13661
  • fix(cli): disable hmr in preview by @chenjiahan in #13669
  • fix(hash): keep fullhash in sync with css-only content changes by @GiveMe-A-Name in #13491
  • fix(watcher): flush pending events on unpause to prevent stuck files_data by @stormslowly in #13603
  • fix(watcher): filter stale FSEvents with mtime baseline comparison by @stormslowly in #13610
  • fix(rstest): respect importFunctionName when importDynamic is disabled by @9aoy in #13673
  • fix: fix flaky wasm tests by @hardfist in #13655
  • fix: support module external type in array externals by @JSerFeng in #13663
  • fix(mf): resolve version from parent package for secondary entry points by @davidfestal in #13636
  • fix(wasm): fix browser e2e timeout by running @rspack/browser builds in a worker by @hardfist in #13687
  • fix: Revert rstest importFunctionName feature when importDynamic is disabled by @9aoy in #13699

Refactor 🔨

  • refactor(concatenated-module): reduce clone overhead by @LingyuCoder in #13642
  • refactor: replace expect("TODO") with descriptive error messages by @jaehafe in #13685

Document Updates 📖

Other Changes

New Contributors

Full Changelog: v2.0.0-rc.1...v2.0.0-rc.2

Contributors

stormslowly, davidfestal, and 15 other contributors
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v2.0.0-rc.1

08 Apr 06:25
@LingyuCoder LingyuCoder
v2.0.0-rc.1
aecb611

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v2.0.0-rc.1

Highlights 💡

🌳 Better tree shaking with side-effect-free function analysis

Rspack can now detect side-effect-free function calls through the #__NO_SIDE_EFFECTS__ notation and manual pureFunctions hints. With support for exported functions and cross-module analysis, unused calls can be identified more reliably, improving tree shaking results and making it easier to optimize both application code and third-party dependencies.

// lib.js
/*@__NO_SIDE_EFFECTS__*/ 
export function call() {
  console.log('hi')
}

// barrel.js
import { call } from './lib'

const value = call()

// if value is unused, call can be removed
export { value }
image

What's Changed

Breaking Changes 🛠

Performance Improvements ⚡

  • perf(javascript): cache non-nested export target lookups by @LingyuCoder in #13545
  • perf(rspack-sources): perf potential tokens and source map to json by @SyMind in #13497
  • perf: modules should use IdentifierHasher by @SyMind in #13601

New Features 🎉

  • feat: Implement HashedModuleIdsPlugin by @aancuta in #13197
  • feat: add TryFutureConsumer with short-circuit cancellation by @jerrykingxyz in #13554
  • feat(binding): add active-related APIs to ModuleGraphConnection by @JSerFeng in #13548
  • feat: support optimize side effects free function calls by @JSerFeng in #12559
  • feat(node-binding): add external wasm debug info for wasm dwarf debugging by @hardfist in #13638

Bug Fixes 🐞

  • fix(cli): surface fatal errors and unhandled rejections on process exit by @briansilah in #13506
  • fix: multicompiler devServer false support in serve by @LingyuCoder in #13572
  • fix(cli): bundle lazy-loaded helper deps by @chenjiahan in #13587
  • fix: cjs self reference mangle exports by @ahabhgk in #13588
  • fix(esm-library): emit empty export for empty node chunks by @JSerFeng in #13462
  • fix(wasm): avoid blocking-thread work under node:wasi by @hardfist in #13598
  • fix(core): move connection states to ModuleGraphConnection by @JSerFeng in #13624
  • fix(side-effects): respect DefinePlugin purity evaluation by @ahabhgk in #13628
  • fix(externals): correct external type for aliased node builtin externals by @JSerFeng in #13627

Refactor 🔨

Document Updates 📖

Other Changes

New Contributors

Full Changelog: v2.0.0-rc.0...v2.0.0-rc.1

Contributors

stormslowly, renovate, and 12 other contributors
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v2.0.0-rc.0

31 Mar 08:04
@LingyuCoder LingyuCoder
v2.0.0-rc.0
9e06e0e

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v2.0.0-rc.0

Highlights 💡

Support import.meta.main

import.meta.main is a boolean flag used in ES modules to determine whether the current module is the program’s entry module. It evaluates to true when the module is executed as the main entry, and to false when it is imported by another module. You can think of it as the ESM equivalent of require.main === module in CommonJS. It is useful for running startup logic, initialization code, or CLI behavior only when a module is launched directly.

What's Changed

Performance Improvements ⚡

New Features 🎉

  • feat: support import.meta.main by @ahabhgk in #13489
  • feat: support expression in import.meta.resolve argument by @ahabhgk in #13523
  • feat: add ModuleGraph.getUsedExports to ModuleGraph by @SyMind in #13519

Bug Fixes 🐞

  • fix(watcher): rename typo recursiron_directories to recurse_parent_directories by @jaehafe in #13510
  • fix: avoid spreading huge dependency iterables by @SyMind in #13517
  • fix(types): allow partial jsc.parser config when detectSyntax is auto by @chenjiahan in #13531
  • fix(swc-loader): fallback detectSyntax auto for virtual modules by @chenjiahan in #13529
  • fix: reset chunk.rendered in incremental build by @hardfist in #13544

Refactor 🔨

Document Updates 📖

Other Changes

New Contributors

Full Changelog: v2.0.0-beta.9...v2.0.0-rc.0

Contributors

stormslowly, LingyuCoder, and 7 other contributors
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