oxlint 1.87.0: React suggestion fixes + jsx-a11y hardening (5 Oct 2026)

On 5 October 2026, the Oxc project published oxlint v1.87.0. ShopperCove did not upgrade a production lint pipeline for this note and did not run benchmarks. Package identity was confirmed on the npm registry on 5 October 2026 (oxlint@1.87.0, dist-tag latest, npm time 2026-10-05T11:05:35.081Z). Primary source: the GitHub release oxlint_v1.87.0 (published 2026-10-05T11:04:25Z). Docs entry point: Oxc linter guide. This is a docs-based upgrade checklist—not performance advice and not a security advisory (no CVEs are claimed here).

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What lands in 1.87.0

Features (suggestion support)

From the release notes:

Rule	Change
react/no-unescaped-entities	Implement suggestion (#27292)
unicorn/no-useless-switch-case	Implement suggestion (#27245)
react/jsx-no-target-blank	Implement suggestion (#27181)

Suggestions matter when your editor or oxlint --fix path can offer a one-click fix without treating the diagnostic as a silent autofix. Expect clearer remediation for unescaped entities in JSX text, useless switch cases, and target="_blank" without rel hardening—still review every applied edit.

Bug fixes (jsx-a11y + more)

Area	Fix
jsx-a11y/label-has-associated-control	Validate label attribute values (#27302)
jsx-a11y/mouse-events-have-key-events	Handle nullish event handlers (#27306)
jsx-a11y/lang	Validate lang expression strings (#27304)
unicorn/numeric-separators-style	Report misgrouped BigInt literals (#27207)
unicorn/no-zero-fractions	Parenthesize separator and large integers in fixer (#27206)
parser	Validate TypeScript type member separators (#27222)
eslint/prefer-exponentiation-operator	Preserve autofix precedence (#27150)
valid-title	Continue checks after allowed words (#27146)
eslint/no-unused-vars	Respect disabled argument checks for used ignore patterns (#26925)

The jsx-a11y trio is the practical frontend signal: label association, keyboard parity for mouse handlers, and lang expression checking all get sharper validation. Pair this release with your existing ESLint / typescript-eslint notes if you run oxlint beside or instead of classic ESLint in CI.

Hands-on upgrade checklist

1. Inventory: npx oxlint --version or npm ls oxlint. Note whether you are below 1.87.0.
2. Pin / bump in staging: install oxlint@1.87.0. Confirm with npm view oxlint version → expect 1.87.0 as latest as of sources read 5 Oct 2026.
3. Re-run CI / local lint: watch for new or quieter jsx-a11y findings (labels, mouse/key pairs, lang), and for suggestion-capable diagnostics on the three React/unicorn rules above.
4. Editor path: if you rely on oxlint suggestions in VS Code / Zed / CI --fix, spot-check a file that previously showed jsx-no-target-blank or unescaped entities.
5. Do not invent security urgency: this minor is features + bugfixes in the official release notes; ShopperCove is not attaching CVE IDs.
6. Toolchain neighbors: oxlint sits in the Oxc family next to formatter/parser work. For unified toolchain context see ShopperCove’s live Vite+ 1.0 note; for classic ESLint see ESLint 10.12 and typescript-eslint 8.71.

ShopperCove did not change production oxlint versions for this article. Prefer the GitHub release and linter docs over third-party roundups.

Bottom line

oxlint v1.87.0 (5 Oct 2026) adds suggestions for react/no-unescaped-entities, unicorn/no-useless-switch-case, and react/jsx-no-target-blank, plus jsx-a11y and other rule/parser fixes. Pin oxlint@1.87.0 when ready. No affiliate.

Sources

• https://github.com/oxc-project/oxc/releases/tag/oxlint_v1.87.0
• https://oxc.rs/docs/guide/usage/linter
• https://www.npmjs.com/package/oxlint
• https://registry.npmjs.org/oxlint/1.87.0
• https://github.com/oxc-project/oxc

Related

• https://www.shoppercove.com/blog/eslint-10-12-release-october-2026
• https://www.shoppercove.com/blog/typescript-eslint-8-71-no-unsafe-enum-assignment-october-2026
• https://www.shoppercove.com/blog/vite-plus-1-0-unified-toolchain-october-2026
• https://www.shoppercove.com/blog/playwright-1-63-test-locks-october-2026
• https://www.shoppercove.com/blog/astro-7-3-preview-ignore-lock-october-2026
• https://www.shoppercove.com/blog/astro-starlight-0-42-popover-js-dist-october-2026
• https://www.shoppercove.com/blog/webpack-5-111-esm-output-stable-september-2026
• https://www.shoppercove.com/blog/react-19-3-view-transitions-fragment-refs-2026