[1.0.0-beta.44] - 2025-10-20

💥 Breaking Changes

• Top-level jsx removed, use transform.jsx instead
• output.minifyInternalExports now enabled by default

🎯 Enhanced Tree-Shaking

• JSON default imports are now tree-shakeable

// config.json
{
"apiUrl": "[https://api.example.com](https://api.example.com/)",
"timeout": 5000,
"retries": 3,
"debug": false
}

// main.js
// Before: Entire JSON was included in bundle
import config from './config.json';
console.log(config.apiUrl);

// After: Only the used property is included
// Bundle now contains just the apiUrl value

• Built-in typed array constructors (new Uint8Array(), new Int32Array(), etc.) marked as pure

⚙️ Configuration Improvements

• Support output.cleanDir option
• Deprecated some top-level options
  • define → transform.define
  • inject → transform.inject
  • dropLabels → transform.dropLabels
  • keepNames → output.keepNames
  • profilerNames → output.generatedCode.profilerNames

💥 BREAKING CHANGES

• enable output.minifyInternalExports for format: 'es' or minify: true (feat!: enable output.minifyInternalExports for format: 'es' or minify: true #6594) by @sapphi-red
• node/options: remove InputOptions.jsx, prefer transform.jsx always (feat(node/options)!: remove InputOptions.jsx, prefer transform.jsx always #6548) by @hyf0

🚀 Features

• support jsx preset for transform.jsx (feat: support jsx preset for transform.jsx #6630) by @shulaoda
• rolldown_plugin_vite_html: align inject_to_body function (feat(rolldown_plugin_vite_html): align inject_to_body function #6622) by @shulaoda
• rolldown_vite_css_post_plugin: tweak is_legacy field (feat(rolldown_vite_css_post_plugin): tweak is_legacy field #6620) by @shulaoda
• native-plugin: expose viteHtmlPlugin (feat(native-plugin): expose viteHtmlPlugin #6609) by @shulaoda
• native-plugin: expose viteCSSPostPlugin (feat(native-plugin): expose viteCSSPostPlugin #6606) by @shulaoda
• builtin-plugin: expose viteCSSPlugin (feat(builtin-plugin): expose viteCSSPlugin #6605) by @shulaoda
• rolldown_plugin_vite_html: complete plugin binding (feat(rolldown_plugin_vite_html): complete plugin binding #6604) by @shulaoda
• rolldown_plugin_vite_css: support plugin binding (feat(rolldown_plugin_vite_css): support plugin binding #6598) by @shulaoda
• add TypedArray constructors to side-effect free globals (feat: add TypedArray constructors to side-effect free globals #6592) by @IWANABETHATGUY
• rolldown_plugin_vite_html: align process src attr logic (feat(rolldown_plugin_vite_html): align process src attr logic #6572) by @shulaoda
• rolldown: support output.clearDir to clean up dir before build (feat(rolldown): support output.clearDir to clean up dir before build #6486) by @aprosail
• dev: return RolldownOutput instead of BindingOutputs from onOutput (feat(dev): return RolldownOutput instead of BindingOutputs from onOutput #6563) by @sapphi-red
• rolldown_plugin_vite_html: align process srcset logic (feat(rolldown_plugin_vite_html): align process srcset logic #6560) by @shulaoda
• rolldown_plugin_vite_html: align process src function (feat(rolldown_plugin_vite_html): align process src function #6559) by @shulaoda
• rolldown_plugin_vite_html: align parse secset function (feat(rolldown_plugin_vite_html): align parse secset function #6558) by @shulaoda
• node/options: deprecate dropLabels and add transform.dropLabels (feat(node/options): deprecate dropLabels and add transform.dropLabels #6557) by @hyf0
• node/options: deprecate keepNames and add output.keepNames (feat(node/options): deprecate keepNames and add output.keepNames #6556) by @hyf0
• node/options: deprecate profilerNames and add output.generatedCode.profilerNames (feat(node/options): deprecate profilerNames and add output.generatedCode.profilerNames #6555) by @hyf0
• node/options: deprecate top level inject and define and add transform.define, transform.inject (feat(node/options): deprecate top level inject and define and add transform.define, transform.inject #6544) by @hyf0
• rolldown_plugin_vite_html: initialize attributes handle logic (feat(rolldown_plugin_vite_html): initialize attributes handle logic #6543) by @shulaoda
• rolldown: oxc v0.95.0 (feat(rolldown): oxc v0.95.0 #6541) by @Boshen
• rolldown_plugin_vite_html: align inject css logic (feat(rolldown_plugin_vite_html): align inject css logic #6528) by @shulaoda
• rolldown_plugin_vite_html: align modulepreload inject logic (feat(rolldown_plugin_vite_html): align modulepreload inject logic #6526) by @shulaoda
• rolldown_plugin_vite_html: align css bundle output inject logic (feat(rolldown_plugin_vite_html): align css bundle output inject logic #6524) by @shulaoda
• rolldown_plugin_vite_html: support inject_to_head function (feat(rolldown_plugin_vite_html): support inject_to_head function #6522) by @shulaoda
• rolldown_plugin_vite_html: align emit and delete logic (feat(rolldown_plugin_vite_html): align emit and delete logic #6521) by @shulaoda
• rolldown_vite_html: align handle html asset url logic (feat(rolldown_vite_html): align handle html asset url logic #6518) by @shulaoda
• add an example how to transform code and generate sourcemap with experimental.nativeMagicString (feat: add an example how to transform code and generate sourcemap with experimental.nativeMagicString #6514) by @IWANABETHATGUY
• rolldown_plugin_vite_html: align handle inline css logic (feat(rolldown_plugin_vite_html): align handle inline css logic #6517) by @shulaoda

🐛 Bug Fixes

• native-plugin: use correct config for assetPlugin (fix(native-plugin): use correct config for assetPlugin #6638) by @shulaoda
• no_color not being respected on reporter (fix: no_color not being respected on reporter #6615) by @H4ad
• improve tree shaking for JSON default imports (feat: improve tree shaking for JSON default imports #6626) by @IWANABETHATGUY
• cjs treeshaking removes used code (fix: cjs treeshaking removes used code #6597) by @IWANABETHATGUY
• plugin/vite-resolve: return package_json_path from resolveId hook (fix(plugin/vite-resolve): return package_json_path from resolveId hook #6434) by @sapphi-red
• dev: should have idx error happens with deferSyncScanData + incremental rebuild (fix(dev): should have idx error happens with deferSyncScanData + incremental rebuild #6568) by @sapphi-red
• rolldown: sync scoping properly in pre_process_ecma_ast (fix(rolldown): sync scoping properly in pre_process_ecma_ast #6537) by @Boshen
• process CJS tree shaking bailout modules before eliminating unused dynamic entries (fix: process CJS tree shaking bailout modules before eliminating unused dynamic entries #6549) by @IWANABETHATGUY
• rust/dev: error of bundler.scandoesn't get handled (fix(rust/dev): error of bundler.scandoesn't get handled #6547) by @copilot
• inline only self referenced json module properties (fix: inline only self referenced json module properties #6519) by @IWANABETHATGUY
• avoid processing native MagicString sourcemap when sourcemap is disabled (fix: avoid processing native MagicString sourcemap when sourcemap is disabled #6510) by @IWANABETHATGUY

🚜 Refactor

• rolldown_binding: unify BindingAssetInlineLimit (refactor(rolldown_binding): unify BindingAssetInlineLimit #6625) by @shulaoda
• rolldown_binding: tweak BindingAssetPluginConfig (refactor(rolldown_binding): tweak BindingAssetPluginConfig #6624) by @shulaoda
• tweak viteCSSPlugin config (refactor: tweak viteCSSPlugin config #6610) by @shulaoda
• rust/dev: remove unnecessary bundler cache management of dev engine (refactor(rust/dev): remove unnecessary bundler cache management of dev engine #6576) by @hyf0
• rust/dev: refactor TaskInput into enum to reduce invalid states (refactor(rust/dev): refactor TaskInput into enum to reduce invalid states #6575) by @hyf0
• improve the error message of ScanStageCache#merge (refactor: improve the error message of ScanStageCache#merge #6564) by @IWANABETHATGUY
• rust/dev: use client_id to check if module is executed for test environment (refactor(rust/dev): use client_id to check if module is executed for test environment #6566) by @hyf0
• rust/binding: mark napi object that won't be received from js side (refactor(rust/binding): mark napi object that won't be received from js side #6531) by @hyf0
• rust/binding: mark napi object struct that won't be passed to js explicitly (refactor(rust/binding): mark napi object struct that won't be passed to js explicitly #6525) by @hyf0
• rust/binding: use &str or JsString to avoid unnecessary clone (refactor(rust/binding): use &str or JsString to avoid unnecessary clone #6523) by @hyf0
• rust/binding: use &str to avoid unnecessary clone (refactor(rust/binding): use &str to avoid unnecessary clone #6520) by @hyf0
• rust: replace unwrap with expect for better error handling in message sending (refactor(rust): replace unwrap with expect for better error handling in message sending #6509) by @hyf0

📚 Documentation

• add redirect from /guide/in-depth/ to /in-depth/ (docs: add redirect from /guide/in-depth/ to /in-depth/ #6554) by @copilot
• guide: polish notable features page (docs(guide): polish notable features page #6535) by @sapphi-red
• builtin-plugins: add replace plugin docs (docs(builtin-plugins): add replace plugin docs #6534) by @sapphi-red
• add Additional Thanks in acknowledgements page (docs: add Additional Thanks in acknowledgements page #6507) by @hyf0
• polish doc for experimental.nativeMagicString (docs: polish doc for experimental.nativeMagicString #6504) by @IWANABETHATGUY

⚡ Performance

• cli: advance createTokioRuntime (perf(cli): advance createTokioRuntime #6618) by @hyf0
• rolldown: reduce unnecessary Vec allocate (perf(rolldown): reduce unnecessary Vec allocate #6601) by @Brooooooklyn
• rolldown: make derived assets generation more parallel (perf(rolldown): make derived assets generation more parallel #6600) by @Brooooooklyn
• rolldown: make chunks generation more parallel (perf(rolldown): make chunks generation more parallel #6599) by @Brooooooklyn
• rolldown_utils: only allocate HASH_PLACEHOLDER_LEFT once (perf(rolldown_utils): only allocate HASH_PLACEHOLDER_LEFT once #6595) by @Brooooooklyn
• rolldown: use oxc-resolver with simd-json (perf(rolldown): use oxc-resolver with simd-json #6591) by @Boshen
• rolldown: avoid allocate the sourcemap sources on non Windows os (perf(rolldown): avoid allocate the sourcemap sources on non Windows os #6590) by @Brooooooklyn
• resolver: use optimized fs.read_to_string impl (perf(resolver): use optimized fs.read_to_string impl #6589) by @Brooooooklyn
• deps: upgrade json-escape-simd and add simdutf8 dependency (perf(deps): upgrade json-escape-simd and add simdutf8 dependency #6579) by @Brooooooklyn
• rust/dev: remove unncessary clone for ClientInput (perf(rust/dev): remove unncessary clone for ClientInput #6565) by @hyf0
• visit ast in cross_module_optimization stage parallel (perf: visit ast in cross_module_optimization stage parallel #6552) by @IWANABETHATGUY

🧪 Testing

• json module prop conflict with normal module declaration binding (test: json module prop conflict with normal module declaration binding #6540) by @IWANABETHATGUY
• vite-tests: fix rolldown overrides (test(vite-tests): fix rolldown overrides #6532) by @sapphi-red

⚙️ Miscellaneous Tasks

• remove string conversion warning in replacePlugin to compatible with rollup (chore: remove string conversion warning in replacePlugin to compatible with rollup #6639) by @IWANABETHATGUY
• deps: update dependency dprint-json to v0.21.0 (chore(deps): update dependency dprint-json to v0.21.0 #6637) by @renovate[bot]
• deps: lock file maintenance (chore(deps): lock file maintenance #6635) by @renovate[bot]
• deps: lock file maintenance npm packages (chore(deps): lock file maintenance npm packages #6632) by @renovate[bot]
• node: use built-in styleText (chore(node): use built-in styleText #6340) by @dumbmatter
• deps: update actions/setup-node action to v6 (chore(deps): update actions/setup-node action to v6 #6629) by @renovate[bot]
• deps: update github-actions (chore(deps): update github-actions #6628) by @renovate[bot]
• deps: update dependency dprint-markdown to v0.20.0 (chore(deps): update dependency dprint-markdown to v0.20.0 #6627) by @renovate[bot]
• Switch color dependencies (ansis and picocolors) to built-in styleText (chore: Switch color dependencies (ansis and picocolors) to built-in styleText #6619) by @IWANABETHATGUY
• native-plugin: tweak assetPlugin (chore(native-plugin): tweak assetPlugin #6623) by @shulaoda
• remove deprecated warning in build.ts (chore: remove deprecated warning in build.ts #6621) by @IWANABETHATGUY
• deps: update dependency tsdown to v0.15.8 (chore(deps): update dependency tsdown to v0.15.8 #6617) by @renovate[bot]
• rolldown_binding: rename vite css plugin config field (chore(rolldown_binding): rename vite css plugin config field #6611) by @shulaoda
• add colored deprecation warnings for top-level options (chore: add colored deprecation warnings for top-level options #6612) by @IWANABETHATGUY
• rust: make cargo publish --workspace work (chore(rust): make cargo publish --workspace work #6287) by @Boshen
• deps: update dependency rolldown-plugin-dts to v0.16.12 (chore(deps): update dependency rolldown-plugin-dts to v0.16.12 #6608) by @renovate[bot]
• test: add opposite_minify_internal_exports and remove minify_internal_exports extend test (chore(test): add opposite_minify_internal_exports and remove minify_internal_exports extend test #6596) by @hyf0
• test: render snapshot for build and dev independently (chore(test): render snapshot for build and dev independently #6584) by @hyf0
• test: split test logic for normal build and dev engine (chore(test): split test logic for normal build and dev engine #6580) by @hyf0
• fix rolldown build self warning (chore: fix rolldown build self warning #6578) by @IWANABETHATGUY
• tweak BindingBuiltinPluginName (chore: tweak BindingBuiltinPluginName #6574) by @shulaoda
• rust: use forked notify crate (chore(rust): use forked notify crate #6573) by @Boshen
• add .len() and .is_empty() to HybridIndexVec (chore: add .len() and .is_empty() to HybridIndexVec #6570) by @sapphi-red
• ai: improve AGENT.md with verified prompts (chore(ai): improve AGENTS.md with verified prompts #6533) by @hyf0
• clippy: set too-many-lines-threshold to 200 (chore(clippy): set too-many-lines-threshold to 200 #6530) by @shulaoda
• clean up examples/basic-vue (chore: clean up examples/basic-vue #6515) by @IWANABETHATGUY
• deps: update dependency tsdown to v0.15.7 (chore(deps): update dependency tsdown to v0.15.7 #6512) by @renovate[bot]
• add shulaoda to release PR assignees (ci: add shulaoda to release PR assignees #6505) by @shulaoda

❤️ New Contributors

• @dumbmatter made their first contribution in #6340
• @H4ad made their first contribution in #6615
• @aprosail made their first contribution in #6486