[1.0.0-beta.43] - 2025-10-13

⚡ Parallel Sourcemap Generation with experimental.nativeMagicString

• 2.18x faster builds than Babel Parser + JS MagicString
• Biggest gains for plugins heavily using transform hooks

Before: Transform + sourcemap both blocked in JS ❌
After: Only transform in JS, sourcemaps in Rust thread ✅

Comparison in apps/10000 benchmark:

• Babel Parser + JS MagicString: baseline
• Oxc + native MagicString: 2.18x faster 🚀

See more details: Document & Benchmark

🚀 Features

• add filterVitePlugins utility that uses to skip vite plugins using apply: "serve" (feat: add filterVitePlugins utility that uses to skip vite plugins using apply: "serve" #6502) by @IWANABETHATGUY
• rolldown_plugin_vite_html: align partial can inline entry logic (feat(rolldown_plugin_vite_html): align partial can inline entry logic #6500) by @shulaoda
• rolldown_plugin_vite_html: align get_imported_chunks logic (feat(rolldown_plugin_vite_html): align get_imported_chunks logic #6499) by @shulaoda
• rolldown_plugin_vite_html: align HtmlTagDescriptor (feat(rolldown_plugin_vite_html): align HtmlTagDescriptor #6498) by @shulaoda
• rolldown_plugin_vite_html: align partial utility functions logic (feat(rolldown_plugin_vite_html): align partial utility functions logic #6497) by @shulaoda
• rolldown_html_vite_html: align partial inject chunk asset links logic (feat(rolldown_html_vite_html): align partial inject chunk asset links logic #6496) by @shulaoda
• rolldown_plugin_vite_html: align processedHtml logic (feat(rolldown_plugin_vite_html): align processedHtml logic #6494) by @shulaoda
• add nativeMagicString options (feat: add nativeMagicString options #6469) by @IWANABETHATGUY
• rust: eagerly cleanup resources when calling close (feat(rust): eagerly cleanup resources when calling close #6483) by @hyf0
• rust: varify if bundler is closed for public API (feat(rust): varify if bundler is closed for public API #6481) by @hyf0
• replace [format] placeholder in chunk filename templates (feat: replace [format] placeholder in chunk filename templates #6476) by @elecmonkey
• implement synchronous JS callback invocation for paths function (feat: implement synchronous JS callback invocation for paths function #6474) by @IWANABETHATGUY
• rolldown_plugin_vite_html: align partial transform hook logic (feat(rolldown_plugin_vite_html): align partial transform hook logic #6471) by @shulaoda
• Support output.paths (feat: Support output.paths #6470) by @IWANABETHATGUY
• rolldown_plugin_vite_html: align script urls handle logic (feat(rolldown_plugin_vite_html): align script urls handle logic #6466) by @shulaoda
• add validation for preserveEntrySignatures with includeDependenciesRecursively option (feat: add validation for preserveEntrySignatures with includeDependenciesRecursively option #6468) by @hyf0
• rolldown_plugin_vite_html: align partial logic (feat(rolldown_plugin_vite_html): align partial logic #6465) by @shulaoda
• background sourcemap generation for Javascript transform hooks (feat: background sourcemap generation for Javascript transform hooks #6293) by @IWANABETHATGUY
• rolldown_plugin_vite_html: handle style tag (feat(rolldown_plugin_vite_html): handle style tag #6464) by @shulaoda
• rolldown_plugin_vite_html: handle inline style attribute (feat(rolldown_plugin_vite_html): handle inline style attribute #6463) by @shulaoda
• rolldown_plugin_vite_html: patially handle vite-ignore attribute (feat(rolldown_plugin_vite_html): patially handle vite-ignore attribute #6462) by @shulaoda
• dev/node: expose errors of on_hmr_updatrs to node (feat(dev/node): expose errors of on_hmr_updatrs to node #6454) by @hyf0
• dev/node: expose errors of on_output to node (feat(dev/node): expose errors of on_output to node #6453) by @hyf0
• dev: expose hmr errors on on_hmr_updatrs callback (feat(dev): expose hmr errors on on_hmr_updatrs callback #6443) by @hyf0

🐛 Bug Fixes

• fallback sourcemap generation for experimental.nativeMagicString: false (fix: fallback sourcemap generation for experimental.nativeMagicString: false #6488) by @IWANABETHATGUY
• take resolve.modules into account (fix: take resolve.modules into account #6484) by @Pickachu
• rolldown: increase tokio blocking threads size for watch mode (fix(rolldown): increase tokio blocking threads size for watch mode #6467) by @Brooooooklyn
• use len_utf16 in magic_string CharToByteMapper (fix: use len_utf16 in magic_string CharToByteMapper #6461) by @IWANABETHATGUY
• pass advancedChunks#includeDependenciesRecursively to rust (fix: pass advancedChunks#includeDependenciesRecursively to rust #6448) by @hyf0
• dev: should compute hmr update correctly for multiple clients (fix(dev): should compute hmr update correctly for multiple clients #6442) by @hyf0
• allow specifying packageJsonPath in PluginContext.load (fix: allow specifying packageJsonPath in PluginContext.load #6439) by @sapphi-red
• use transform.target as default for minify target when minify: { compress: true } (fix: use transform.target as default for minify target when minify: { compress: true } #6433) by @sapphi-red

🚜 Refactor

• extract background sourcemap handling into separate methods (refactor: extract background sourcemap handling into separate methods #6501) by @IWANABETHATGUY
• rust: only expose methods of Bundler for public usage (refactor(rust): only expose methods of Bundler for public usage #6480) by @hyf0
• dev/node: use napi object instead clss for BindingClientHmrUpdate (refactor(dev/node): use napi object instead clss for BindingClientHmrUpdate #6456) by @hyf0
• dev/node: improve DevOnHmrUpdates API (refactor(dev/node): improve DevOnHmrUpdates API #6455) by @hyf0

📚 Documentation

• update team page and add acknowledgements page (docs: update team page and add acknowledgements page #6495) by @hyf0
• restructure website and files (docs: restructure website and files #6492) by @hyf0
• correct incorrect documentation about the config file (docs: correct incorrect documentation about the config file #6472) by @jsparkdev
• options: experimental.strictExecutionOrder (docs(options): experimental.strictExecutionOrder #6450) by @hyf0
• adding why-plugin-hook-filter in depth (docs: adding why-plugin-hook-filter in depth #6446) by @IWANABETHATGUY

⚡ Performance

• rolldown: replace serde JSON string escape with simd impl (perf(rolldown): replace serde JSON string escape with simd impl #6475) by @Brooooooklyn

⚙️ Miscellaneous Tasks

• docs: redirect removed path to new locations for compatibility (chore(docs): redirect removed path to new locations for compatibility #6493) by @hyf0
• deps: lock file maintenance npm packages (chore(deps): lock file maintenance npm packages #6490) by @renovate[bot]
• deps: update github-actions (major) (chore(deps): update github-actions (major) #6415) by @renovate[bot]
• deps: update github-actions (chore(deps): update github-actions #6489) by @renovate[bot]
• rust: add comment for DiagnosticOptions#stabilize_path (chore(rust): add comment for DiagnosticOptions#stabilize_path #6447) by @hyf0
• rust: remove unused BindingHmrOutput (chore(rust): remove unused BindingHmrOutput #6457) by @hyf0
• rolldown_plugin_vite_html: tweak utils.rs (chore(rolldown_plugin_vite_html): tweak utils.rs #6460) by @shulaoda
• change node version to lts (chore: change node version to lts #6435) by @iiio2
• rust/test: split hmr related structs into their own files (chore(rust/test): split hmr related structs into their own files #6445) by @hyf0
• deps: update crate-ci/typos action to v1.38.1 (chore(deps): update crate-ci/typos action to v1.38.1 #6452) by @renovate[bot]
• rust/test: render hmr errors (chore(rust/test): render hmr errors #6444) by @hyf0
• examples: add "type": "module" in package.json (chore(examples): add "type": "module" in package.json #6441) by @iiio2

❤️ New Contributors

• @Pickachu made their first contribution in #6484
• @elecmonkey made their first contribution in #6476
• @jsparkdev made their first contribution in #6472