# rolldown v1.2.5

- Product: rolldown (https://whatsnew.fyi/product/rolldown)
- Vendor: rolldown
- Date: 2026-08-19
- Version: v1.2.5
- Original notes: https://github.com/rolldown/rolldown/releases/tag/v1.2.5
- Permalink: https://whatsnew.fyi/product/rolldown/releases/v1.2.5

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **added** — Record per-suite peak memory in the node benchmark
- **added** — Allocation-tracking global allocator behind the tracking_allocator feature
- **added** — Add armv7 android (armv7-linux-androideabi) support
- **added** — Add NAMESPACE_CONFLICT warning for conflicting star re-exports
- **fixed** — Avoid ANSI erase-line escape in non-TTY output in rolldown_plugin_vite_reporter
- **fixed** — Preserve Yarn PnP virtual importer in rolldown_plugin_vite_resolve
- **fixed** — Exclude hash placeholders from case-insensitive filename deconfliction
- **fixed** — Fold already-loaded side-effectful libraries into eager entries in code-splitting
- **fixed** — Flush re-emitted assets when their content changes in dev
- **fixed** — Rename nested require/__filename/__dirname bindings in CJS output
- **fixed** — Silence two wasm-only warnings
- **changed** — Upgrade oxc to 0.146.0

##### [1.2.5] - 2026-08-19

###### 🚀 Features

- bench: record per-suite peak memory in the node benchmark (#10704) by @IWANABETHATGUY
- binding: allocation-tracking global allocator behind the `tracking_allocator` feature (#10703) by @IWANABETHATGUY
- add armv7 android (armv7-linux-androideabi) support (#10691) by @shulaoda
- add `NAMESPACE_CONFLICT` warning for conflicting star re-exports (#7452) by @AliceLanniste

###### 🐛 Bug Fixes

- rolldown_plugin_vite_reporter: avoid ANSI erase-line escape in non-TTY output (#10692) by @shulaoda
- rolldown_plugin_vite_resolve: preserve Yarn PnP virtual importer (#10591) by @Freakazo
- exclude hash placeholders from case-insensitive filename deconfliction (#10590) by @Nic-Polumeyv
- code-splitting: fold already-loaded side-effectful libraries into eager entries (#10645) by @JoviDeCroock
- dev: flush re-emitted assets when their content changes (#10637) by @btea
- renamer: rename nested `require`/`__filename`/`__dirname` bindings in CJS output (#10655) by @marcoroth
- silence two wasm-only warnings (#10668) by @IWANABETHATGUY

###### 🚜 Refactor

- skip case folding for filenames with hash placeholders (#10689) by @hyfdev
- code-splitting: remove redundant synthetic statement owner (#10503) by @hyfdev
- renamer: move the cjs check into `rename_bindings_shadowing_cjs_ambient_names` (#10672) by @IWANABETHATGUY

###### 📚 Documentation

- agents: point the never-edit list at the binding files that exist (#10719) by @melbinjp

###### 🧪 Testing

- deconflict: pin renaming the external process binding away from the global (#10702) by @hyfdev
- dev: expect a hot update across a circular import (#10700) by @hyfdev

###### ⚙️ Miscellaneous Tasks

- deps: upgrade oxc to 0.146.0 (#10707) by @Boshen
- deps: update rust crates (#10684) by @renovate[bot]
- deps: update npm packages (#10685) by @renovate[bot]
- build the benchmark comparison window from the JSON lines (#10701) by @IWANABETHATGUY
- wasi: retry the Node Test step to absorb the shared-dlmalloc flake (#10699) by @hyfdev
- append benchmark results to storage as JSON lines (#10682) by @IWANABETHATGUY
- deps: update github actions (#10683) by @renovate[bot]
- deps: update dependency rolldown-plugin-dts to v0.28.2 (#10679) by @renovate[bot]
- deps: update dependency rolldown-plugin-dts to v0.28.1 (#10674) by @renovate[bot]

###### ❤️ New Contributors

* @melbinjp made their first contribution in [#10719](https://github.com/rolldown/rolldown/pull/10719)
* @Freakazo made their first contribution in [#10591](https://github.com/rolldown/rolldown/pull/10591)
* @marcoroth made their first contribution in [#10655](https://github.com/rolldown/rolldown/pull/10655)