chore(deps): update typescript-eslint monorepo to v8.66.0

[renovate]

ℹ️ Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package	Change	Age	Confidence
@typescript-eslint/eslint-plugin (source)	8.53.1 → 8.66.0
@typescript-eslint/parser (source)	8.53.1 → 8.66.0
typescript-eslint (source)	8.53.1 → 8.66.0

---

Release Notes

typescript-eslint/typescript-eslint (@​typescript-eslint/eslint-plugin)

v8.66.0

Compare Source

🩹 Fixes

• eslint-plugin: [class-literal-property-style] preserve type annotations and don't drop decorators (#​12617)
• eslint-plugin: [no-unnecessary-type-parameters] check MappedType key remapping (#​12588)
• eslint-plugin: [no-useless-default-assignment] don't report defaults used by other overloads (#​12607)
• eslint-plugin: [prefer-nullish-coalescing] handle shadowed Boolean calls (#​12591)
• eslint-plugin: [no-unnecessary-type-conversion] ignore shadowed built-ins (#​12590)

❤️ Thank You

• Evyatar Daud @​StyleShit
• 송재욱

See GitHub Releases for more information.

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

v8.65.0

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🚀 Features

• eslint-plugin: [no-shadow] specialized error on enum declaration and member shadowing (#​12578)
• add warning when TS 7 is detected (#​12529)
• eslint-plugin: [no-restricted-imports] deprecate extension rule (#​12527, #​19562, #​11889)

🩹 Fixes

• eslint-plugin: [no-unnecessary-parameter-property-assignment] don't flag computed assignments with a variable key (#​12568)
• eslint-plugin: [unbound-method] report unbound methods accessed via member expression on union types (#​12448)
• eslint-plugin: [prefer-string-starts-ends-with] handle escaped $ ending regex literals (#​12515)

❤️ Thank You

• Evyatar Daud @​StyleShit
• Josh Goldberg ✨
• Kirk Waiblinger @​kirkwaiblinger
• Serhii Leniv @​Serhii-Leniv
• 송재욱

See GitHub Releases for more information.

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

v8.64.0

Compare Source

🚀 Features

• eslint-plugin: [no-loop-func] support using / await using declarations and deprecate the rule (#​12500)
• typescript-estree: throw for invalid definite assignment in class properties (#​12543)

🩹 Fixes

• eslint-plugin: [require-array-sort-compare] handle constrained arrays (#​12512)

❤️ Thank You

• Evyatar Daud @​StyleShit
• 송재욱

See GitHub Releases for more information.

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

v8.63.0

Compare Source

🚀 Features

• eslint-plugin: [no-misused-promises] detect async usage of a sync dispose usage (#​12426)

🩹 Fixes

• eslint-plugin: [no-base-to-string] don't flag a shadowed String() call (#​12492)
• eslint-plugin: [no-unnecessary-type-assertion] handle optional-chained calls to overloaded functions (#​12491, #​12485)
• eslint-plugin: [method-signature-style] suggest converting readonly function properties instead of emitting invalid syntax (#​12447, #​12446)

❤️ Thank You

• Evyatar Daud @​StyleShit
• Kristjan @​KristjanTammekivi
• Michael Naumov @​mnaoumov
• Serhii Leniv @​Serhii-Leniv
• 송재욱

See GitHub Releases for more information.

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

v8.62.1

Compare Source

🩹 Fixes

• eslint-plugin: [no-unnecessary-type-assertion] parenthesize object literal at left edge of expression statement (#​12443, #​12418)
• eslint-plugin: [no-unnecessary-boolean-literal-compare] preserve boolean result in fixer for nullable true comparisons (#​12365)
• eslint-plugin: [prefer-optional-chain] use suggestion instead of autofix for trailing binary operator (#​12328)

❤️ Thank You

• Kirk Waiblinger @​kirkwaiblinger
• mdm317
• Patrick Aleite
• 송재욱

See GitHub Releases for more information.

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

v8.62.0

Compare Source

🚀 Features

• remove redundant package.json "files" (#​12444)

❤️ Thank You

• Kirk Waiblinger @​kirkwaiblinger

See GitHub Releases for more information.

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

v8.61.1

Compare Source

🩹 Fixes

• eslint-plugin: [no-unnecessary-template-expression] respect ECMAScript line terminators (#​12388)
• eslint-plugin: [no-unnecessary-boolean-literal-compare] fix precedence bug in autofix (#​12413)
• eslint-plugin: [no-unnecessary-type-assertion] wrap object literal in parens when removing TSTypeAssertion in arrow body (#​12394, #​12393)
• eslint-plugin: [no-unnecessary-type-assertion] avoid false positive for template literal expressions (#​12281)
• eslint-plugin: [consistent-indexed-object-style] do not remove comments when fixing (#​12396, #​10577)

❤️ Thank You

• Anas @​anasm266
• Deftera @​Deftera186
• Kirk Waiblinger @​kirkwaiblinger
• lumir
• Sarath Francis @​sarathfrancis90

See GitHub Releases for more information.

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

v8.61.0

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🚀 Features

• ast-spec: change type of UnaryExpression.prefix to always true (#​12372)

❤️ Thank You

• Kirk Waiblinger @​kirkwaiblinger

See GitHub Releases for more information.

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

v8.60.1

Compare Source

🩹 Fixes

• eslint-plugin: [no-shadow] correct rule to match ESLint v10 handling (#​12182)
• eslint-plugin: respect ECMAScript line terminators in ts-comment rules (#​12352)

❤️ Thank You

• lumir
• Nevette Bailey @​nevette-bailey

See GitHub Releases for more information.

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

v8.60.0

Compare Source

This was a version bump only for eslint-plugin to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.59.4

Compare Source

🩹 Fixes

• eslint-plugin: [no-floating-promises] stack overflow when using recursive types (#​12294)

❤️ Thank You

• Evyatar Daud @​StyleShit

See GitHub Releases for more information.

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

v8.59.3

Compare Source

This was a version bump only for eslint-plugin to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.59.2

Compare Source

🩹 Fixes

• eslint-plugin: [no-deprecated] object destructuring values should be treated as declarations (#​12292)
• eslint-plugin: [no-unsafe-type-assertion] handle crash on recursive template literal types (#​12150)

❤️ Thank You

• Dima Barabash
• Kirk Waiblinger @​kirkwaiblinger

See GitHub Releases for more information.

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

v8.59.1

Compare Source

🩹 Fixes

• eslint-plugin: [no-unnecessary-condition] treat void as nullish in no-unnecessary-condition (#​12241)
• eslint-plugin: [no-unnecessary-type-arguments] handle instantiation expressions (#​12220)
• eslint-plugin: [no-unnecessary-type-assertion] avoid false positive in logical assignment assertions (#​12278)
• eslint-plugin: [no-unnecessary-type-assertion] preserve phantom type arguments in generic inference (#​12269)
• eslint-plugin: [no-unnecessary-type-assertion] preserve index signatures in undefined unions (#​12257)
• eslint-plugin: [no-unnecessary-type-assertion] fix crash "TypeError: checker.getTypeArguments is not a function" (#​12246)

❤️ Thank You

• anasm266 @​anasm266
• Anshika Jain @​Anshikakalpana
• Ulrich Stark
• yugo innami @​nami8824

See GitHub Releases for more information.

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

v8.59.0

Compare Source

🚀 Features

• eslint-plugin: [no-unnecessary-type-assertion] report more cases based on assignability (#​11789)

❤️ Thank You

• Ulrich Stark

See GitHub Releases for more information.

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

v8.58.2

Compare Source

🩹 Fixes

• eslint-plugin: [no-unnecessary-condition] use assignability checks in checkTypePredicates (#​12147)
• remove tsbuildinfo cache file from published packages (#​12187)

❤️ Thank You

• Abhijeet Singh @​cseas
• 송재욱

See GitHub Releases for more information.

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

v8.58.1

Compare Source

🩹 Fixes

• eslint-plugin: [no-unused-vars] fix false negative for type predicate parameter (#​12004)

❤️ Thank You

• MinJae @​Ju-MINJAE

See GitHub Releases for more information.

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

v8.58.0

Compare Source

🚀 Features

• support TypeScript 6 (#​12124)

🩹 Fixes

• eslint-plugin: [prefer-regexp-exec] avoid fixing unknown RegExp flags (#​12161)
• eslint-plugin: [no-extraneous-class] handle index signatures (#​12142)
• eslint-plugin: crash in no-unnecessary-type-arguments (#​12163)

❤️ Thank You

• ej shafran @​ej-shafran
• Evyatar Daud @​StyleShit
• GG ZIBLAKING
• milkboy2564 @​SeolJaeHyeok
• teee32 @​teee32

See GitHub Releases for more information.

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

v8.57.2

Compare Source

🩹 Fixes

• eslint-plugin: [prefer-readonly-parameter-types] preserve type alias infomation (#​11954)
• eslint-plugin: [no-useless-default-assignment] skip reporting false positives for unresolved type parameters (#​12127)
• eslint-plugin: [no-unsafe-return] false positive on unwrapping generic (#​12125)
• eslint-plugin: [no-restricted-types] flag banned generics in extends or implements (#​12120)
• eslint-plugin: [array-type] ignore Array and ReadonlyArray without type arguments (#​11971)
• eslint-plugin: [prefer-optional-chain] remove dangling closing parenthesis (#​11865)

❤️ Thank You

• Kirk Waiblinger @​kirkwaiblinger
• Konv Suu
• mdm317
• Newton Yuan @​NewtonYuan
• SungHyun627 @​SungHyun627
• Tamashoo @​Tamashoo

See GitHub Releases for more information.

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

v8.57.1

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🩹 Fixes

• eslint-plugin: [prefer-optional-chain] no report for property on intersection type (#​12126)

❤️ Thank You

• Newton Yuan @​NewtonYuan

See GitHub Releases for more information.

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

v8.57.0

Compare Source

🚀 Features

• eslint-plugin: [no-unnecessary-condition] allow literal loop conditions in for/do loops (#​12080)

🩹 Fixes

• eslint-plugin: [no-base-to-string] fix false positive for toString with overloads (#​12089)
• eslint-plugin: [prefer-promise-reject-errors] add allow TypeOrValueSpecifier to prefer-promise-reject-errors (#​12094)
• typescript-estree: if the template literal is tagged and the text has an invalid escape, cooked will be null (#​11355)
• eslint-plugin: guard against negative paramIndex in no-useless-default-assignment (#​12077)
• eslint-plugin: handle statically analyzable computed keys in prefer-readonly (#​12079)
• eslint-plugin: [strict-void-return] false positives with overloads (#​12055)

❤️ Thank You

• Brad Zacher @​bradzacher
• Brian Schlenker @​bschlenk
• Evyatar Daud @​StyleShit
• James Henry @​JamesHenry
• Josh Goldberg
• Kirk Waiblinger @​kirkwaiblinger
• Moses Odutusin @​thebolarin
• Newton Yuan @​NewtonYuan
• SungHyun627 @​SungHyun627
• Younsang Na @​nayounsang

See GitHub Releases for more information.

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

v8.56.1

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This was a version bump only for eslint-plugin to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.56.0

Compare Source

🚀 Features

• support ESLint v10 (#​12057)

🩹 Fixes

• use parser options from context.languageOptions (#​12043)

❤️ Thank You

• Brad Zacher @​bradzacher
• fnx @​DMartens
• Joshua Chen

See GitHub Releases for more information.

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

v8.55.0

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🚀 Features

• utils: deprecate defaultOptions in favor of meta.defaultOptions (#​11992)

🩹 Fixes

• eslint-plugin: [no-useless-default-assignment] reduce param index to ts this handling (#​11949)
• eslint-plugin: [no-useless-default-assignment] report unnecessary defaults in ternary expressions (#​11984)
• eslint-plugin: [no-useless-default-assignment] require strictNullChecks (#​11966, #​12000)
• eslint-plugin: [no-unused-vars] remove trailing newline when removing entire import (#​11990)

❤️ Thank You

• Christian Rose @​chrros95
• Josh Goldberg
• Maria Solano @​MariaSolOs
• Minyeong Kim @​minyeong981
• SungHyun627 @​SungHyun627
• Yukihiro Hasegawa @​y-hsgw

See GitHub Releases for more information.

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

v8.54.0

Compare Source

🚀 Features

• eslint-plugin-internal: add prefer-tsutils-methods rule (#​11974, #​11625)
• typescript-estree: add shortcut methods to ParserServicesWithTypeInformation (#​11965, #​11955)

🩹 Fixes

• eslint-plugin: [no-unnecessary-type-assertion] check both base constraint and actual type for non-null assertions (#​11967, #​11559)
• deps: update dependency prettier to v3.8.0 (#​11991)
• scope-manager: fix catch clause scopes def.name (#​11982)
• eslint-plugin: [no-unused-private-class-members] private destructured class member is defined but used (#​11785)

❤️ Thank You

• Brad Zacher @​bradzacher
• Josh Goldberg
• MinJae @​Ju-MINJAE
• Minyeong Kim @​minyeong981
• overlookmotel
• Yuya Yoshioka @​YuyaYoshioka
• 김현수 @​Kimsoo0119

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

typescript-eslint/typescript-eslint (@​typescript-eslint/parser)

v8.66.0

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.65.0

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🚀 Features

• add warning when TS 7 is detected (#​12529)
• parser: add onUnsupportedTypeScriptVersion option to error on unsupported TypeScript versions (#​12465)

❤️ Thank You

• Evyatar Daud @​StyleShit
• Josh Goldberg ✨
• Kirk Waiblinger @​kirkwaiblinger
• 송재욱

See GitHub Releases for more information.

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

v8.64.0

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.63.0

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.62.1

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.62.0

Compare Source

🚀 Features

• remove redundant package.json "files" (#​12444)

❤️ Thank You

• Kirk Waiblinger @​kirkwaiblinger

See GitHub Releases for more information.

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

v8.61.1

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.61.0

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.60.1

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.60.0

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.59.4

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.59.3

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This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.59.2

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This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.59.1

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This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.59.0

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.58.2

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🩹 Fixes

• remove tsbuildinfo cache file from published packages (#​12187)

❤️ Thank You

• Abhijeet Singh @​cseas

See GitHub Releases for more information.

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

v8.58.1

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.58.0

Compare Source

🚀 Features

• support TypeScript 6 (#​12124)

❤️ Thank You

• Evyatar Daud @​StyleShit

See GitHub Releases for more information.

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

v8.57.2

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.57.1

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.57.0

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.56.1

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.56.0

Compare Source

🚀 Features

• support ESLint v10 (#​12057)

❤️ Thank You

• Brad Zacher @​bradzacher
• Joshua Chen

See GitHub Releases for more information.

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

v8.55.0

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.54.0

Compare Source

This was a version bump only for parser to align it with other projects, there were no code changes.

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

typescript-eslint/typescript-eslint (typescript-eslint)

v8.66.0

Compare Source

This was a version bump only for typescript-eslint to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.65.0

Compare Source

🚀 Features

• add warning when TS 7 is detected (#​12529)

❤️ Thank You

• Josh Goldberg ✨
• Kirk Waiblinger @​kirkwaiblinger

See GitHub Releases for more information.

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

v8.64.0

Compare Source

8.64.0 (2026-07-13)

🚀 Features

• support parsing import defer (#​12513)
• eslint-plugin: [no-loop-func] support using / await using declarations and deprecate the rule (#​12500)
• typescript-estree: throw for invalid definite assignment in class properties (#​12543)

🩹 Fixes

• eslint-plugin: [require-array-sort-compare] handle constrained arrays (#​12512)

❤️ Thank You

• Evyatar Daud @​StyleShit
• 송재욱

See GitHub Releases for more information.

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

v8.63.0

Compare Source

This was a version bump only for typescript-eslint to align it with other projects, there were no code changes.

See GitHub Releases for more information.

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

v8.62.1

Compare Source

This was a version bump only for typescript-eslint to align it with other projects, there were no code chang

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