rolldown 1.0.0-beta.34

v1.0.0-beta.34

on Node.js NPM

[1.0.0-beta.34] - 2025-08-25

💥 BREAKING CHANGES

• improve merging of top-level transform option with tsconfig (#5882) by @shulaoda
• support top-level tsconfig (#5842) by @shulaoda

🚀 Features

• rolldown_plugin_esm_external_require: export namespace directly for Node builtin modules (#5885) by @shulaoda
• rolldown_plugin_dynamic_import_vars: warn by default when errors occur (#5866) by @shulaoda
• support adding note for diagnostic (#5864) by @IWANABETHATGUY
• rolldown_plugin_vite_css_post: align partial css chunk logic (#5861) by @shulaoda
• setup rolldown_binding_watcher (#5859) by @hyf0
• rolldown_plugin_vite_css_post: align css url replace logic (#5857) by @shulaoda
• node/dev: binding for DevEngine (#5852) by @hyf0
• dev: introduce DevEngine to support build for devlopement scenario (#5808) by @hyf0
• Show a information log to tell built-in features if a plugin covered by built-in features are used (#5845) by @IWANABETHATGUY
• rolldown_plugin_vite_css_post: align partial css url replace logic (#5837) by @shulaoda
• rolldown_plugin_vite_css_post: align CSS chunk concatenation logic (#5836) by @shulaoda
• rolldown_plugin_transform: support useDefineForClassFields=false with target>=es2022 (#5841) by @sapphi-red
• expose esmExternalRequirePlugin (#5810) by @shulaoda
• rolldown_plugin_esm_external_require: basic implementation (#5809) by @shulaoda
• rolldown: oxc v0.82.3 (#5807) by @Boshen
• expose oxc_minifier options (#5804) by @IWANABETHATGUY
• rolldown_plugin_require_to_import: initialize (#5797) by @shulaoda
• adjust codegen initial_indent for concatenateWrappedModule (#5779) by @IWANABETHATGUY
• rolldown: align default value of option.context (#5745) by @situ2001

🐛 Bug Fixes

• topLevelVar option removes class name, causing a TypeError in static block (#5888) by @IWANABETHATGUY
• a esm module required by other module can't be a inner module of concatenateModuleGroup (#5875) by @IWANABETHATGUY
• rolldown_plugin_transform: align lang logic correctly (#5874) by @shulaoda
• Runtime error occurs depending on the lazy import order. (#5873) by @IWANABETHATGUY
• when importee is ts or tsx adding potential false positive note for missing_export diagnostic (#5862) by @IWANABETHATGUY
• hmr: boundary and accept_via was reversed (#5843) by @sapphi-red
• returning result of this.resolve in resolveId hook impacts bundle size (#5851) by @IWANABETHATGUY
• rolldown_plugin_transform: set typescript.removeClassFieldsWithoutInitializer for useDefineForClassFields=false (#5840) by @sapphi-red
• hmr: import.meta.hot.accept in patch file should work (#5823) by @sapphi-red
• proper handle pife and profiler_names for concatenate_wrapped_modules (#5835) by @IWANABETHATGUY
• jsx preserve break component which is default export (#5751) by @shulaoda
• hmr: ensure patch file name to be unique (#5825) by @sapphi-red
• hmr: re-execute the boundary module rather than the accepted module (#5822) by @sapphi-red
• Rolldown cannot treeshake unused branch (#5829) by @IWANABETHATGUY
• inlineConst with constant propagation (#5826) by @IWANABETHATGUY
• don't mangle variable names when minify: 'dce-only' is used (#5830) by @sapphi-red
• return actual normalized minify options (#5818) by @IWANABETHATGUY
• plugin/vite-resolve: try non-prefixed index before prefixed index (#5801) by @sapphi-red
• throw a semantic error message instead of panic (#5796) by @AliceLanniste
• rolldown: run DCE on chunk when minify: dce-only (#5792) by @Boshen
• the import attribute has been removed. (#5794) by @IWANABETHATGUY
• don't match CRLF for /./ (#5790) by @IWANABETHATGUY
• node: allow output.topLevelVar by options validator (#5789) by @sapphi-red
• node: allow transform.jsx: 'preserve' by options validator (#5781) by @sapphi-red
• preserve default export for preserveModules (#5780) by @shulaoda
• browser: sync exports (#5776) by @sxzz
• rolldown_plugin_transform: skip builtin transform for module id with null byte (#5775) by @hi-ogawa

🚜 Refactor

• move common transform types into rolldown_common (#5876) by @shulaoda
• rolldown_plugin_vite_css_post: extract finalize_vite_css_urls (#5860) by @shulaoda
• rust: make NotifyWatcher WASM-compatible (#5855) by @hyf0
• rust/dev: remove improper deref for BuildDriver (#5854) by @hyf0
• incremental: use clone_in_with_semantic_ids for program cloning (#5853) by @shulaoda
• rolldown_plugin_esm_external_require: tweak code (#5824) by @shulaoda
• improve resolve_dependencies (#5795) by @shulaoda
• simplify method calls in PluginContext (#5785) by @situ2001

📚 Documentation

• builtin-plugins: clarify behavior of esmExternalRequirePlugin (#5886) by @sapphi-red
• builtin-plugins: add documentation for esmExternalRequirePlugin (#5813) by @shulaoda
• support extracting doc for reference type (#5834) by @IWANABETHATGUY
• optimization.inlineConst (#5831) by @IWANABETHATGUY
• update description for output.minify (#5816) by @IWANABETHATGUY
• plugins: extract plugins into a separate section (#5812) by @shulaoda

⚡ Performance

• string_wizard: reduce allocation (#5793) by @Brooooooklyn

🧪 Testing

• hmr: import.meta.hot.accept cases (#5821) by @sapphi-red
• hmr: static import cases (#5820) by @sapphi-red
• hmr: no boundary full reload case (#5819) by @sapphi-red

⚙️ Miscellaneous Tasks

• deps: update oxc-resolver to v11.7.0 (#5889) by @shulaoda
• deps: lock file maintenance (#5880) by @renovate[bot]
• deps: lock file maintenance rust crates (#5881) by @renovate[bot]
• deps: update github-actions (#5877) by @renovate[bot]
• deps: lock file maintenance rust crates (#5879) by @renovate[bot]
• deps: lock file maintenance npm packages (#5878) by @renovate[bot]
• bump rolldown-ariadne (#5863) by @IWANABETHATGUY
• remove usage of quote_expr, quote_stmt (#5858) by @IWANABETHATGUY
• vite-tests: run all test suites even if some test suites failed (#5828) by @sapphi-red
• vite-tests: set _VITE_TEST_JS_PLUGIN instead of _VITE_TEST_NATIVE_PLUGIN (#5827) by @sapphi-red
• deps: use vitepress@^2.0.0-alpha.12 instead (#5811) by @shulaoda
• deps: update dependency rolldown-plugin-dts to v0.15.7 (#5814) by @renovate[bot]
• add example with oxc transform styled components plugin (#5800) by @IWANABETHATGUY
• deprecate top-level jsx option in favor of transform.jsx (#5783) by @shulaoda
• deps: update crate-ci/typos action to v1.35.5 (#5786) by @renovate[bot]
• update default value of options.context (#5777) by @IWANABETHATGUY

◀️ Revert

• "fix: jsx preserve break component which is default export (#5764)" (#5856) by @shulaoda

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