# Oxc apps_v1.77.0 — oxlint v1.77.0 & oxfmt v0.62.0

- Product: Oxc (https://whatsnew.fyi/product/oxc)
- Vendor: Oxc
- Date: 2026-08-03
- Version: apps_v1.77.0
- Original notes: https://github.com/oxc-project/oxc/releases/tag/apps_v1.77.0
- Permalink: https://whatsnew.fyi/product/oxc/releases/apps-v1.77.0

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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- **changed** — Return borrowed JSDoc so the parse cache works
- **changed** — Store single parameter in TSIndexSignature::parameter
- **added** — Introduce ExportDeclaration, ExportFromDeclaration
- **added** — Introduce ArrowFunctionBody enum
- **added** — Expand bad-char-at-comparison rule coverage
- **added** — Show file:line:col in github format annotation messages
- **fixed** — Detect parenthesized member expression object in new-for-builtins
- **fixed** — Reject duplicate JS plugin names
- **fixed** — Ignore unsigned shifts in prefer-math-trunc
- **fixed** — Handle ambient error variables in prefer-promise-reject-errors
- **fixed** — Bound token lookup in no-async-await
- **fixed** — Bound token lookups in bad-bitwise-operator
- **fixed** — Bound token lookup in import/no-duplicates
- **fixed** — Bound token lookup in consistent-type-specifier-style
- **fixed** — Bound token lookup in yoda
- **fixed** — Avoid recursive declaration traversal in no-map-spread
- **changed** — Move prefer-promise-reject-errors category to pedantic
- **fixed** — Bound token lookup in require-await
- **fixed** — Bound token lookup in prefer-template
- **fixed** — Respect .gitignore for walk targets and explicit paths

##### Table of Contents

- [Oxlint v1.77.0](#oxlint-v1.77.0)
- [Oxfmt v0.62.0](#oxfmt-v0.62.0)

##### Oxlint v1.77.0
###### 💥 BREAKING CHANGES

- 4120da0 semantic: [**BREAKING**] Return borrowed JSDoc so the parse cache works (#25186) (Connor Shea)
- 067da8c ast: [**BREAKING**] Store single parameter in `TSIndexSignature::parameter` (#25154) (camc314)
- 1bdedd1 ast: [**BREAKING**] Introduce `ExportDeclaration`, `ExportFromDeclaration` (#25095) (camc314)
- c917f20 ast: [**BREAKING**] Introduce `ArrowFunctionBody` enum (#24987) (camc314)

###### 🚀 Features

- 0b9f83c linter/oxc/bad-char-at-comparison: Expand coverage (#25001) (Mikhail Baev)
- 1fb3d70 oxlint: Show file:line:col in github format annotation messages (#25020) (Faris Tristan Fabian)

###### 🐛 Bug Fixes

- a64b65d linter/unicorn/new-for-builtins: Detect parenthesized member expression object (#25249) (tanakalucky)
- 9d4592c linter: Reject duplicate JS plugin names (#25243) (camc314)
- 3213e7a linter: Ignore unsigned shifts in prefer-math-trunc (#25240) (camc314)
- 06579da linter/eslint/prefer-promise-reject-errors: Handle ambient error variables (#25238) (camc314)
- 6a7cd90 linter/oxc/no-async-await: Bound token lookup (#25222) (camc314)
- d8e390a linter/oxc/bad-bitwise-operator: Bound token lookups (#25220) (camc314)
- 351a777 linter/import/no-duplicates: Bound token lookup (#25219) (camc314)
- 4f70fb6 linter/import/consistent-type-specifier-style: Bound token lookup (#25218) (camc314)
- b89113c linter/eslint/yoda: Bound token lookup (#25202) (camc314)
- 7c7cda7 linter/oxc/no-map-spread: Avoid recursive declaration traversal (#25200) (camc314)
- 99efb30 linter/eslint/prefer-promise-reject-errors: Move category to `pedantic` (#25201) (camc314)
- 8edad2a linter/eslint/require-await: Bound token lookup (#25199) (camc314)
- 5aaec85 linter/eslint/prefer-template: Bound token lookup (#25197) (camc314)
- 0ea1af4 linter/unicorn/new-for-builtins: Align Date() diagnostic message with upstream (#25166) (tanakalucky)
- f6c8575 linter/eslint/prefer-object-spread: Bound token lookup (#25195) (camc314)
- 20f68e7 oxlint,oxfmt: Respect `.gitignore` for walk targets and explicit paths (#25133) (leaysgur)
- b83993b linter/eslint/prefer-const: Bound token lookup (#25194) (camc314)
- aeabf63 linter/eslint/object-shorthand: Bound token lookups (#25193) (camc314)
- 48f302c linter/eslint/no-var: Bound token lookup (#25192) (camc314)
- 1f595de linter/eslint/no-unused-vars: Bound token lookups (#25191) (camc314)
- e52f4c4 linter/eslint/no-unexpected-multiline: Use bounded token lookup (#25190) (camc314)
- ca80338 linter/eslint/eqeqeq: Use bounded token lookup (#25189) (camc314)
- df91684 linter: Make the remaining token lookups comment-aware (#25182) (connorshea)
- 2401bb8 linter/eslint/prefer-const: Skip Svelte and Vue files (#25148) (Pitiș Radu)
- b870897 linter: Don't match tokens inside comments when locating spans (#25181) (connorshea)
- b474da1 linter/typescript/consistent-type-imports: Make token lookups comment-aware (#25180) (connorshea)
- 81f82db linter: Don't insert an ASI semicolon into an unbraced statement body (#25160) (Vladexy88x)
- 31333be linter/no-magic-array-flat-depth: Scan for `(` by byte offset instead of character count (#25130) (connorshea)
- 56e9c83 linter: Index source text by byte offset instead of char count (#25131) (connorshea)
- 5c0fa61 linter/eslint/no-warning-comments: Unify config structs and remove manual options docs (#25151) (Mikhail Baev)
- a922355 docs: Incorrect quotations in `role_supports_aria_props.rs` (#25077) (Maximilian Franzke)
- e8c4c05 linter/eslint/no-unreachable-loop: Handle caught errors correctly (#25071) (camc314)
- 2b02711 oxlint: Correct --warn flag help text (#25059) (Faris Tristan Fabian)
- 97f084f linter/eslint/no-control-regex: Allow null escape (#25070) (camc314)

###### ⚡ Performance

- 224c21a linter/vue/no-side-effects-in-computed-properties: Borrow property names in the mutation walk (#25212) (connorshea)
- d36e9c9 linter/un

_[Truncated at 4000 characters — full notes: https://github.com/oxc-project/oxc/releases/tag/apps_v1.77.0]_