rolldown 1.0.0-beta.52

v1.0.0-beta.52

on Node.js NPM

[1.0.0-beta.52] - 2025-11-26

💥 Breaking Change

• Change output.generatedCode.profilerNames default to false

🔧 Vite-Style TypeScript Configuration

• Rolldown now supports Vite-style automatic tsconfig resolution. Use tsconfig: true to enable auto-discovery mode where each module finds its nearest tsconfig.json. See more details here

⚙️ Toolchain Upgrade

• Upgraded to oxc v0.99.0
• More details: https://github.com/oxc-project/oxc/releases/tag/crates_v0.99.0

💥 BREAKING CHANGES

• change output.generatedCode.profilerNames default to false (#7139) by @Copilot

🚀 Features

• support vite-style tsconfig resolution (#6873) by @shulaoda
• rolldown: oxc v0.99.0 (#7165) by @camc314
• browser: export plugins (#7210) by @sxzz
• rolldown_plugin_vite_css_post: add inline parameter to cssMinify callback (#7191) by @shulaoda
• rolldown_plugin_vite_build_import_analysis: implement render_chunk to replace __VITE_IS_MODERN__ flag (#7178) by @shulaoda
• rolldown_plugin_utils: optimize SVG data URL encoding (#7156) by @shulaoda
• dev: replace DevEngine::hasLatestBuildOutput with DevEngine::getBundleState (#7145) by @sapphi-red
• rolldown_plugin_vite_asset_import_meta_url: support @vite-ignore comment (#7141) by @shulaoda
• rolldown_plugin_vite_asset_import_meta_url: implement static URL processing (#7140) by @shulaoda
• rolldown_plugin_vite_asset_import_meta_url: align asset_resolver logic (#7137) by @shulaoda
• rolldown_plugin_vite_asset_import_meta_url: align try_fs_resolve logic (#7136) by @shulaoda
• rolldown_plugin_vite_asset_import_meta_url: validate relative paths (#7120) by @shulaoda
• export viteAssetImportMetaUrlPlugin and add dynamic URL tests (#7119) by @shulaoda

🐛 Bug Fixes

• watch overwrite rename event on linux (#7201) by @sapphi-red
• preserve name for parenthesized anonymous default exports and arrow functions with keepNames (#7159) by @Copilot
• rolldown_plugin_vite_html: add missing async attribute for inlined entry scripts (#7202) by @shulaoda
• respect target setting in DCE to prevent modern syntax generation (#7128) by @Copilot
• rolldown_plugin_vite_html: add semicolon to import statement in CSS removal (#7200) by @shulaoda
• rolldown_plugin_vite_html: use correct CSS asset filename in HTML injection (#7199) by @shulaoda
• rolldown_plugin_vite_css_post: handle scoped package names in lib CSS filename (#7198) by @shulaoda
• rolldown_plugin_vite_html: use patched html5gum with correct span tracking (#7193) by @shulaoda
• rolldown_plugin_vite_html: handle HTML strings in script tags correctly (#7192) by @shulaoda
• handle JSON import namespace property access correctly (#7190) by @IWANABETHATGUY
• only include runtime helpers from included modules (#7183) by @IWANABETHATGUY
• rolldown_plugin_vite_html: normalize paths to use forward slashes in original_file_name (#7175) by @shulaoda
• rolldown_plugin_vite_css_post: use filename instead of reference_id for imported assets (#7174) by @shulaoda
• rolldown_plugin_vite_css_post: correct regex escaping in pure CSS chunk pruning (#7173) by @shulaoda
• rolldown_plugin_vite_html: use correct dependency path for modulepreload links (#7172) by @shulaoda
• update cur_stmt_index when processing top level statements (#7157) by @IWANABETHATGUY
• rolldown_plugin_utils: strip leading character from public asset URL (#7170) by @shulaoda
• rolldown_plugin_vite_html: use correct public_base for html_result_map key (#7169) by @shulaoda
• rolldown_plugin_utils: correct runtime handling and escape single quotes in asset paths (#7168) by @shulaoda
• rolldown_plugin_utils: prevent data race in file_to_url cache (#7166) by @shulaoda
• rolldown_plugin_vite_asset_import_meta_url: correct glob pattern and query string handling in dynamic URLs (#7162) by @shulaoda
• rolldown_plugin_vite_css_post: use correct start position in magic string updates (#7158) by @shulaoda
• data race in FileEmitter::emit_file causing duplicate asset emissions (#7164) by @shulaoda
• dev: watch files even if the build failed (#7149) by @sapphi-red
• rolldown_plugin_utils: always use base64 encoding for data URLs (#7148) by @shulaoda
• preserve "default" name for anonymous default exports with keepNames (#7151) by @Copilot
• correctly handle cjs json module as entry point (#7147) by @IWANABETHATGUY
• rolldown_plugin_utils: correct reference_id parsing in render_asset_url_in_js (#7143) by @shulaoda
• rolldown_plugin_vite_asset_import_meta_url: exclude quotes from URL span (#7142) by @shulaoda
• rolldown_plugin_vite_asset_import_meta_url: use template literal for glob result indexing (#7134) by @shulaoda
• tree shake unused dynamic entry when inlineDynamicImports is enabled (#7129) by @IWANABETHATGUY
• correct return value of parse / parseSync functions (#7127) by @sapphi-red

🚜 Refactor

• rolldown_plugin_vite_transform: use oxc_resolver for tsconfig discovery (#7220) by @shulaoda
• rolldown_plugin_vite_resolve: use resolve_file for tsconfig discovery (#7216) by @shulaoda
• rolldown_plugin_utils: remove redundant ViteMetadata::get_or_insert_default() (#7189) by @shulaoda
• rolldown_plugin_utils: simplify ViteMetadata::get() to always return a value (#7188) by @shulaoda
• rolldown_utils: add guess_mime_skip_utf8_check for binary assets (#7161) by @shulaoda
• rolldown_plugin_utils: extract asset URL parsing into AssetUrlIter (#7144) by @shulaoda
• store pattern name in FilenameTemplate (#7132) by @IWANABETHATGUY

📚 Documentation

• tsconfig: document auto-discovery mode and improve structure (#7228) by @shulaoda
• add plugin hook filter compatibility and fallback guide (#7138) by @Copilot
• update top level navigation (#7092) by @mdong1909

🧪 Testing

• add tsconfig include/exclude/files matching test cases (#6899) by @shulaoda
• vite-tests: run playwright install in case playwright binary is missing (#7226) by @sapphi-red
• watch: close watcher when an error occured in the test cases (#7225) by @sapphi-red
• watch: reject waitBuildFinished if ERROR event occurs (#7224) by @sapphi-red

⚙️ Miscellaneous Tasks

• example: revert accidental changes to basic-typescript (#7227) by @shulaoda
• deps: update oxc apps (#7212) by @renovate[bot]
• deps: update rust crates (#7204) by @renovate[bot]
• deps: update oxc_resolver_napi to 11.14.0 (#7217) by @shulaoda
• deps: update oxc_resolver (#6909) by @shulaoda
• deps: update dependency glob to v13 (#7208) by @renovate[bot]
• deps: update actions/checkout action to v6 (#7207) by @renovate[bot]
• deps: update npm packages (#7206) by @renovate[bot]
• deps: update github-actions (#7205) by @renovate[bot]
• add missing status code comment (#7185) by @iiio2
• deps: update dependency oxlint-tsgolint to v0.8.1 (#7197) by @renovate[bot]
• rust: add more tracing log for hmr + dev logic (#7179) by @hyf0
• deps: update dependency oxlint-tsgolint to v0.8.0 (#7167) by @renovate[bot]
• deps: update dependency oxlint-tsgolint to v0.7.3 (#7133) by @renovate[bot]
• merge similar inlineDynamicImports test case (#7131) by @IWANABETHATGUY
• deps: update rolldown-plugin-dts to 0.18.0 (#7125) by @shulaoda

Co-authored-by: shulaoda 165626830+shulaoda@users.noreply.github.com