## [1.0.0-beta.20] - 2025-06-25

### 🚀 Features

- rolldown: oxc v0.75.0 (#5069) by @Boshen
- rolldown: oxc 0.74.0 (#5047) by @Boshen

### 🐛 Bug Fixes

- vite-tests: avoid crash when `packageJson.pnpm` is undefined (#5066)
by @shulaoda
- JSX preset options not working correctly (#5060) by @shulaoda
- remove improper jsdoc of builtin define plugin (#5046) by
@AliceLanniste

### 🚜 Refactor

- passing vec length directly (#5050) by @ShroXd

### 📚 Documentation

- explain that a chunk may be bigger than `maxSize` (#5014) by
@sapphi-red
- update example about `withFilter` (#5040) by @IWANABETHATGUY

### ⚡ Performance

- preallocate smaller vec for hash placeholder finder (#5064) by
@sapphi-red
- reduce temporary memory usage by avoiding output chunk clone until
needed (#5058) by @sapphi-red
- skip empty write bundle hook with `hook_usage` meta (#5057) by
@sapphi-red

### ⚙️ Miscellaneous Tasks

- deps: update dependency rolldown-plugin-dts to v0.13.12 (#5065) by
@renovate[bot]
- rolldown: upgrade NAPI-RS to 3.0.0-beta.10 (#5063) by @Brooooooklyn
- bump oxc-resolver to v11.2.1 (#5061) by @Boshen
- deps: update dependency tsdown to v0.12.9 (#5056) by @renovate[bot]
- deps: update dependency rolldown-plugin-dts to v0.13.12 (#5054) by
@renovate[bot]
- remove long-commented-out code (#5048) by @shulaoda
- deps: lock file maintenance npm packages (#5042) by @renovate[bot]
- deps: lock file maintenance rust crates (#5043) by @renovate[bot]
- deps: update taiki-e/install-action action to v2.54.0 (#5045) by
@renovate[bot]
- deps: update taiki-e/install-action action to v2.53.2 (#5041) by
@renovate[bot]

Co-authored-by: Boshen <[email protected]>

Fix what I think is a bug in the scanner.

Prior to #5069 this code was:

```rs
match parent_parent_kind {
    AstKind::MemberExpression(parent_parent) => {
        self.check_assignment_target_property(parent_parent, cursor - 1)
    }
}
```

#5069 [changed
it](https://github.com/rolldown/rolldown/pull/5069/files#diff-75d46c668c6a1268220bfc745c56ee8fbd1652c0ae6fefef4d7fc77725de8462L38-R42)
to:

```rs
match parent_parent_kind {
    parent_parent_kind if parent_parent_kind.is_member_expression_kind() => {
        let parent_parent = kind.as_member_expression_kind().unwrap();
        //                  ^^^^
        self.check_assignment_target_property(&parent_parent, cursor - 1)
    }
}
```

I believe this change introduced a bug - `kind` is the `AstKind` of the
*parent* of `module`, which is `module.exports`. But what we want to
check here is the *grandparent* - to see if it's
`module.exports.__esModule`. Consequently I'd expect that
`module.exports.__esModule = true` is not being correctly identified.

However, I'm not familiar with Rolldown, and this PR change makes no
difference to test results. So could someone else please check my logic?

(came across this while preparing a PR to update to latest Oxc, which
touches the same code)