rolldown 1.0.0-beta.40

v1.0.0-beta.40

on Node.js NPM

[1.0.0-beta.40] - 2025-09-24

⚡ Sourcemap Performance Boost

• 20%-30% faster sourcemap generation
• Consistent gains across all platforms

🚀 Features

• rolldown: oxc v0.92.0 (#6322) by @Boshen
• adding partial MagicString binding (#6289) by @IWANABETHATGUY
• rolldown_plugin_vite_html: initialize (#6292) by @shulaoda

🐛 Bug Fixes

• rolldown_plugin_react_refresh_wrapper: avoid using cwd to allow using as a callable plugin (#6318) by @sapphi-red
• rolldown_plugin_transform: resolve tsconfig from absolute path (#6311) by @shulaoda

🚜 Refactor

• Construct MagicString with Cow<str> instead of &str (#6288) by @IWANABETHATGUY
• throw error if generating oxc runtime helper fails (#6291) by @shulaoda

📚 Documentation

• add more description about sourcemapIgnoreList (#6314) by @IWANABETHATGUY

⚡ Performance

• reduce sourcemap_ignore_list js function call (#6313) by @IWANABETHATGUY
• string_wizard: use memchr to find patterns in replace (#6312) by @IWANABETHATGUY
• simplify sourcemap token processing in collapse_sourcemaps (#6310) by @IWANABETHATGUY
• rolldown: some minor perf optimization (#6306) by @Brooooooklyn
• rolldown: fine-tuning the tokio scheduler (#6272) by @Brooooooklyn

⚙️ Miscellaneous Tasks

• deps: lock file maintenance rust crates (#6302) by @renovate[bot]
• deps: lock file maintenance npm packages (#6301) by @renovate[bot]
• use lto: thin in profile mode for better profiling experience. (#6320) by @IWANABETHATGUY
• adjust the tokio runtime config in bench (#6305) by @Brooooooklyn
• deps: update dependency rolldown-plugin-dts to v0.16.8 (#6307) by @renovate[bot]