build(deps-dev): bump @typescript-eslint/eslint-plugin from 8.67.0 to 8.70.1

[dependabot]

Bumps @typescript-eslint/eslint-plugin from 8.67.0 to 8.70.1.

Release notes

Sourced from @​typescript-eslint/eslint-plugin's releases.

v8.70.1

8.70.1 (2026-09-21)

🩹 Fixes

• ast-spec: narrow import attribute keys to identifiers and strings (#12879)
• eslint-plugin: [no-useless-default-assignment] avoid false positives on tuples with a rest element (#12768)
• eslint-plugin: [no-unnecessary-type-parameters] handle type precedence in the suggestion fixer (#12637)
• eslint-plugin: [no-explicit-any] use unknown[] for bare any rest parameters (#12818)
• eslint-plugin: [no-generated-empty-object-type] don't report a mapped type whose keys are not resolved yet (#12854)
• eslint-plugin: [no-misused-spread] omit WeakMap spread suggestions (#12850)
• eslint-plugin: [no-unnecessary-type-assertion] false positive for empty object asserted to a type alias of Record (#12869)
• eslint-plugin: [no-meaningless-void-operator] allow void on assignment expressions (#12873)
• eslint-plugin: [await-thenable] prevent autofix from breaking code when removing await (#12716)
• eslint-plugin: [no-unnecessary-parameter-property-assignment] account for parameter reassignment (#12880)
• eslint-plugin: [unbound-method] treat Intl.Collator.prototype.compare as spec-bound (#12845)
• eslint-plugin: [no-unnecessary-condition] handle union-keyed index access on the left-hand side of nullish assignment (#12747)
• eslint-plugin: [no-useless-default-assignment] convert the fixer to a suggestion fixer (#12826)
• eslint-plugin: [no-misused-promises] handle multiple Promise constituents (#12904)
• rule-tester: test the final autofix output instead of the first pass (#12867)
• scope-manager: merge implicit global definitions (#12809)
• type-utils: match package specifiers on whole path components (#12838)
• typescript-estree: resolve symlinked paths when matching files to projects (#12725)
• typescript-estree: add missing < token opening type arguments (#12821)
• typescript-estree: require string literal import attribute values (#12894)
• website: prevent playground from breaking down after opening link with the .js file type (#12777)

❤️ Thank You

• Amin @​amiin-dev
• Brad Zacher @​bradzacher
• Cameron
• Diptajoy Mistry @​diptomistry
• Evyatar Daud @​StyleShit
• Grit @​Grit03
• Hugo @​hugop95
• Josh Goldberg ✨
• Michael Naumov @​mnaoumov
• Mikhail Baev @​baevm
• Om Rawat
• overlookmotel
• Sanath @​sansynx
• Shinji
• stoicism @​stoicism02
• Vinccool96
• Younsang Na @​nayounsang
• 김채영 @​cchaeyoung
• 송재욱

See GitHub Releases for more information.

... (truncated)

Changelog

Sourced from @​typescript-eslint/eslint-plugin's changelog.

8.70.1 (2026-09-21)

🩹 Fixes

• eslint-plugin: [no-misused-promises] handle multiple Promise constituents (#12904)
• eslint-plugin: [no-useless-default-assignment] convert the fixer to a suggestion fixer (#12826)
• eslint-plugin: [no-unnecessary-condition] handle union-keyed index access on the left-hand side of nullish assignment (#12747)
• eslint-plugin: [unbound-method] treat Intl.Collator.prototype.compare as spec-bound (#12845)
• eslint-plugin: [no-unnecessary-parameter-property-assignment] account for parameter reassignment (#12880)
• eslint-plugin: [await-thenable] prevent autofix from breaking code when removing await (#12716)
• eslint-plugin: [no-meaningless-void-operator] allow void on assignment expressions (#12873)
• eslint-plugin: [no-unnecessary-type-assertion] false positive for empty object asserted to a type alias of Record (#12869)
• eslint-plugin: [no-misused-spread] omit WeakMap spread suggestions (#12850)
• eslint-plugin: [no-generated-empty-object-type] don't report a mapped type whose keys are not resolved yet (#12854)
• eslint-plugin: [no-explicit-any] use unknown[] for bare any rest parameters (#12818)
• eslint-plugin: [no-unnecessary-type-parameters] handle type precedence in the suggestion fixer (#12637)
• eslint-plugin: [no-useless-default-assignment] avoid false positives on tuples with a rest element (#12768)

❤️ Thank You

• Brad Zacher @​bradzacher
• Diptajoy Mistry @​diptomistry
• Grit @​Grit03
• Hugo @​hugop95
• Michael Naumov @​mnaoumov
• Mikhail Baev @​baevm
• Om Rawat
• Sanath @​sansynx
• Shinji
• Vinccool96
• 김채영 @​cchaeyoung
• 송재욱

See GitHub Releases for more information.

You can read about our versioning strategy and releases on our website.

8.70.0 (2026-09-07)

🚀 Features

• eslint-plugin: [no-generated-empty-object-type] add rule (#12730)

🩹 Fixes

• eslint-plugin: [no-deprecated] report deprecated imported values used in object shorthand properties (#12780)
• eslint-plugin: [no-unnecessary-condition] no false positive on RHS of a nested logical expression (#12728)
• eslint-plugin: [member-ordering] don't report fields that read fields declared before them (#12729)

❤️ Thank You

... (truncated)

Commits

• 23d38ce chore(release): publish 8.70.1
• 9d82e4b chore: expand eslint-plugin rules test files glob (#12878)
• f7482f6 fix(eslint-plugin): [no-misused-promises] handle multiple Promise constituent...
• 2673044 docs(eslint-plugin): [prefer-promise-reject-errors] add option sections and e...
• 8f141a2 fix(eslint-plugin): [no-useless-default-assignment] convert the fixer to a su...
• 479cd85 chore: enable assertion option requireData for all rule tests (#12816)
• f3c190c fix(eslint-plugin): [no-unnecessary-condition] handle union-keyed index acces...
• b1993df fix(eslint-plugin): [unbound-method] treat Intl.Collator.prototype.compare as...
• da394bc fix(eslint-plugin): [no-unnecessary-parameter-property-assignment] account fo...
• 4a742ff fix(eslint-plugin): [await-thenable] prevent autofix from breaking code when ...
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Project	Deployment	Actions	Updated
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[greptile-apps]

Confidence Score: 4/5

[High risk] Bumps TypeScript linting tool to a new minor version.

Address the out-of-scope build dependency changes before merging; the parser peer mismatch should also be corrected.

Findings

1.  Parser peer version mismatch ▶
2.  Unrelated build dependencies refreshed ▶

Fix with agent prompt

### Issue 1
nextjs/package.json:32
The plugin now requires `@typescript-eslint/parser` `^8.70.1`, but the manifest and lockfile still pair it with parser `8.70.0`. This leaves the peer requirement unsatisfied and produces an install warning. Update the parser alongside the plugin so the committed versions match.

### Issue 2
pnpm-lock.yaml:9973
This lint-plugin bump also changes webpack's browserslist, resolver, schema validator, and source packages. Those build-tool updates are outside the stated dependency bump. The repository guide requires diffs to stay scoped, so separate these changes before merging.

Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!

---

For each issue above, determine whether it is valid and should be fixed. If so, fix it directly.

Summary

The PR raises the Next.js TypeScript ESLint plugin requirement to 8.70.1 and updates the lockfile.

• The resolved parser remains at 8.70.0, below the plugin’s peer requirement.
• The lockfile also refreshes unrelated build dependencies.

_{Reviews (1) · Last reviewed commit: "build(deps-dev): bump @typescript-eslint..."}