rolldown 1.0.1

v1.0.1

on Node.js NPM

[1.0.1] - 2026-05-13

🚀 Features

• experimental/lazy-barrel: advice on oversized barrel modules (#9236) by @shulaoda
• rolldown: inline optional-chain enum access (#9379) by @Dunqing
• chunk-optimization: dedupe already-loaded dynamic deps (#9305) by @IWANABETHATGUY
• binding: call moduleParsed hook in ParallelJsPlugin (#9318) by @jaehafe

🐛 Bug Fixes

• transform: enable enum_eval for transformSync and vite TS transform (#9325) by @Dunqing
• error: remove severity prefix from diagnostic messages (#9262) by @Kyujenius
• deps: pin pnpm to 10.23.0 to work around catalog mismatch on Netlify (#9364) by @shulaoda
• ci: pin mimalloc-safe to 0.1.58 (#9361) by @shulaoda
• dev/lazy: fix exports of lazy requests in lazy chunks (#9249) by @h-a-n-a
• rolldown_plugin_vite_resolve: handle errors in resolveSubpathImports callback (#9355) by @sapphi-red
• rolldown_plugin_lazy_compilation: use loadExports for fetched proxy to preserve original export names (#9132) by @h-a-n-a
• common: include offending index in HybridIndexVec panic message (#9296) by @SAY-5

🚜 Refactor

• ecmascript: extract semantic_builder_for_transform helper (#9326) by @Dunqing
• test: extract reusable static-import-cycle helper (#9332) by @IWANABETHATGUY

📚 Documentation

• clarify scope of topLevelVar (#9380) by @IWANABETHATGUY
• meta/design: add ast-mutation design doc (#9338) by @hyf0
• feat: add ai policy in contribution guide (#9315) by @mdong1909

⚡ Performance

• binding: enable mimalloc v3 to reduce idle memory (#9349) by @shulaoda

🧪 Testing

• mcs: cover require() in $initial group (#9376) by @hyf0
• add regression for CJS facade chunk merge into entry (#9351) by @IWANABETHATGUY

⚙️ Miscellaneous Tasks

• switch prepare-release to manual dispatch with version input (#9383) by @shulaoda
• migrate @rolldown/pluginutils to rolldown/plugins (#9317) by @shulaoda
• deps: pin libmimalloc-sys2 to 0.1.54 (#9372) by @shulaoda
• replace igorskyflyer/action-readfile with cat (#9369) by @sapphi-red
• deps: update test262 submodule for tests (#9371) by @rolldown-guard[bot]
• use app token for test dep update PRs (#9368) by @sapphi-red
• replace some actions with gh commands (#9367) by @sapphi-red
• replace action-semantic-pull-request with inline regex (#9366) by @sapphi-red
• remove pull_request_target workflows (#9188) by @Boshen
• deps: upgrade oxc to 0.130.0 (#9360) by @shulaoda
• deps: update github actions (major) (#9348) by @renovate[bot]
• deps: update github actions (#9341) by @renovate[bot]
• deps: update rust crates (#9344) by @renovate[bot]
• deps: update crate-ci/typos action to v1.46.1 (#9357) by @renovate[bot]
• deps: update npm packages (#9343) by @renovate[bot]
• deps: update pnpm to v10.33.4 (#9347) by @renovate[bot]
• deps: update dependency rolldown-plugin-dts to ^0.25.0 (#9346) by @renovate[bot]
• .claude: add rolldown-repl encoder, rename decode skill (#9352) by @IWANABETHATGUY
• deps: update crate-ci/typos action to v1.46.0 (#9345) by @renovate[bot]
• deps: update napi to v3.8.6 (#9342) by @renovate[bot]
• deps: update dependency vite-plus to v0.1.20 (#9340) by @renovate[bot]
• enable rollup chunking-form test (#9335) by @IWANABETHATGUY
• typo: fix typo in watcher options comment (#9324) by @thescripted

❤️ New Contributors

• @Kyujenius made their first contribution in #9262
• @SAY-5 made their first contribution in #9296
• @thescripted made their first contribution in #9324

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