🚀 typescript-eslint/typescript-eslint - Release Notes

## 8.29.0 (2025-03-31)

### 🚀 Features

- **eslint-plugin:** [prefer-nullish-coalescing] create `ignoreIfStatements` option ([#11000](https://github.com/typescript-eslint/typescript-eslint/pull/11000))

### 🩹 Fixes

- **eslint-plugin:** [no-unnecessary-condition] don't report on unnecessary optional array index access when `noUncheckedIndexedAccess` is enabled ([#10961](https://github.com/typescript-eslint/typescript-eslint/pull/10961))
- **eslint-plugin:** [use-unknown-in-catch-callback-variable] remove fixable property ([#10993](https://github.com/typescript-eslint/typescript-eslint/pull/10993))
- **eslint-plugin:** [prefer-for-of] fix false positive when using erasable type syntax within update expressions ([#10981](https://github.com/typescript-eslint/typescript-eslint/pull/10981))
- **eslint-plugin:** support arbitrary extensions in definition files ([#10957](https://github.com/typescript-eslint/typescript-eslint/pull/10957))
- **eslint-plugin:** [no-array-constructor] remove optional chaining exemption ([#10963](https://github.com/typescript-eslint/typescript-eslint/pull/10963))

### ❤️ Thank You

- Dima Barabash @dbarabashh
- Kim Sang Du @developer-bandi
- Olivier Zalmanski @OlivierZal
- Ronen Amiel
- Yannick Decat @mho22
- zyoshoka @zyoshoka

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

## 8.28.0 (2025-03-24)

### 🚀 Features

- **eslint-plugin:** [prefer-nullish-coalescing] support `if` statement assignment (`??=`) and fix several minor bugs ([#10861](https://github.com/typescript-eslint/typescript-eslint/pull/10861))

### 🩹 Fixes

- **eslint-plugin:** [no-unsafe-function-type] remove fixable property ([#10986](https://github.com/typescript-eslint/typescript-eslint/pull/10986))

### ❤️ Thank You

- Olivier Zalmanski @OlivierZal
- Yannick Decat @mho22

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## 8.27.0 (2025-03-17)

### 🚀 Features

- **utils:** support `DeprecatedInfo` for `rule.meta.deprecated` ([#10932](https://github.com/typescript-eslint/typescript-eslint/pull/10932))

### 🩹 Fixes

- **deps:** update eslint monorepo to v9.22.0 ([#10952](https://github.com/typescript-eslint/typescript-eslint/pull/10952))
- **typescript-estree:** fix span start for decorated `AssignmentPattern` function parameter ([#10939](https://github.com/typescript-eslint/typescript-eslint/pull/10939))

### ❤️ Thank You

- ntnyq @ntnyq
- Ronen Amiel

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

## 8.26.1 (2025-03-10)

### 🩹 Fixes

- **eslint-plugin:** [prefer-nullish-coalescing] treat `any`/`unknown` as eligible for nullish coalescing ([#10865](https://github.com/typescript-eslint/typescript-eslint/pull/10865))
- **eslint-plugin:** [no-unsafe-return] handle recursive type ([#10883](https://github.com/typescript-eslint/typescript-eslint/pull/10883))
- **rule-tester:** export `TestLanguageOptions` ([#10930](https://github.com/typescript-eslint/typescript-eslint/pull/10930))

### ❤️ Thank You

- Dave @reduckted
- Kirk Waiblinger @kirkwaiblinger
- YeonJuan @yeonjuan

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## 8.26.0 (2025-03-03)

### 🚀 Features

- support TypeScript 5.8 ([#10903](https://github.com/typescript-eslint/typescript-eslint/pull/10903))
- **eslint-plugin:** [no-unnecessary-type-parameters] special case tuples and parameter location arrays as single-use ([#9536](https://github.com/typescript-eslint/typescript-eslint/pull/9536))
- **eslint-plugin:** [no-unused-var] handle implicit exports in declaration files ([#10714](https://github.com/typescript-eslint/typescript-eslint/pull/10714))
- **eslint-plugin:** [explicit-module-boundary-types] add an option to ignore overload implementations ([#10889](https://github.com/typescript-eslint/typescript-eslint/pull/10889))
- **eslint-plugin:** [unified-signatures] support ignoring overload signatures with different JSDoc comments ([#10781](https://github.com/typescript-eslint/typescript-eslint/pull/10781))
- **rule-tester:** export `TestLanguageOptions` ([#10892](https://github.com/typescript-eslint/typescript-eslint/pull/10892))
- **scope-manager:** only call Object.entries once for each lib ([#10647](https://github.com/typescript-eslint/typescript-eslint/pull/10647))

### 🩹 Fixes

- **deps:** update dependency typedoc-plugin-markdown to v4.4.2 ([#10877](https://github.com/typescript-eslint/typescript-eslint/pull/10877))
- **eslint-plugin:** [unified-signatures] does not differentiate truly private methods ([#10806](https://github.com/typescript-eslint/typescript-eslint/pull/10806))
- **eslint-plugin:** [no-invalid-void-type] report `accessor` properties with an invalid `void` type ([#10864](https://github.com/typescript-eslint/typescript-eslint/pull/10864))
- **eslint-plugin:** [no-unnecessary-type-assertion] handle unknown ([#10875](https://github.com/typescript-eslint/typescript-eslint/pull/10875))
- **rule-tester:** Add missing `parser` dependency ([#10909](https://github.com/typescript-eslint/typescript-eslint/pull/10909))

### ❤️ Thank You

- Andrea Simone Costa @jfet97
- Dave @reduckted
- David Michon
- Dirk Luijk @dirkluijk
- fregante @fregante
- Ronen Amiel
- YeonJuan @yeonjuan
- Yukihiro Hasegawa @y-hsgw

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## 8.25.0 (2025-02-24)

### 🚀 Features

- **eslint-plugin:** [no-misused-spread] add suggestions ([#10719](https://github.com/typescript-eslint/typescript-eslint/pull/10719))

### 🩹 Fixes

- **ast-spec:** replace `attributes` with `options` property in `TSImportType` ([#10691](https://github.com/typescript-eslint/typescript-eslint/pull/10691))
- **eslint-plugin:** [unified-signatures] handle getter-setter ([#10818](https://github.com/typescript-eslint/typescript-eslint/pull/10818))
- **eslint-plugin:** [no-deprecated] report usage of deprecated private identifiers ([#10844](https://github.com/typescript-eslint/typescript-eslint/pull/10844))
- **eslint-plugin:** [prefer-nullish-coalescing] report on chain expressions in a ternary ([#10708](https://github.com/typescript-eslint/typescript-eslint/pull/10708))
- **typescript-estree:** align TS module nodes to namespaces ([#10504](https://github.com/typescript-eslint/typescript-eslint/pull/10504))
- **visitor-keys:** update keys for  `ImportAttribute` ([#10649](https://github.com/typescript-eslint/typescript-eslint/pull/10649))

### ❤️ Thank You

- Anthony Fu
- fisker Cheung @fisker
- Josh Goldberg ✨
- Olivier Zalmanski @OlivierZal
- Ronen Amiel
- YeonJuan @yeonjuan

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## 8.24.1 (2025-02-17)

### 🩹 Fixes

- **deps:** update eslint monorepo to v9.20.0 ([#10834](https://github.com/typescript-eslint/typescript-eslint/pull/10834))
- **eslint-plugin:** [no-inferrable-types] handle accessor ([#10780](https://github.com/typescript-eslint/typescript-eslint/pull/10780))
- **eslint-plugin:** [no-unnecessary-template-expression] ignore enum and enum members ([#10782](https://github.com/typescript-eslint/typescript-eslint/pull/10782))
- **eslint-plugin:** [no-unsafe-assignment] report on an `any` value assigned as an initializer of an `accessor` property ([#10785](https://github.com/typescript-eslint/typescript-eslint/pull/10785))
- **eslint-plugin:** [consistent-generic-constructors] check `accessor` class properties ([#10789](https://github.com/typescript-eslint/typescript-eslint/pull/10789))
- **eslint-plugin:** [prefer-return-this-type] check `accessor` properties with a function initializer ([#10794](https://github.com/typescript-eslint/typescript-eslint/pull/10794))
- **eslint-plugin:** [explicit-module-boundary-types] check `accessor` class properties with a function initializer ([#10804](https://github.com/typescript-eslint/typescript-eslint/pull/10804))
- **eslint-plugin:** [explicit-member-accessibility] check `accessor` class properties for missing accessibility modifier ([#10805](https://github.com/typescript-eslint/typescript-eslint/pull/10805))
- **eslint-plugin:** [no-deprecated] don't report on deprecated `accessor` property declaration ([#10813](https://github.com/typescript-eslint/typescript-eslint/pull/10813))
- **eslint-plugin:** [no-misused-promises] don't report on `static` `accessor` properties ([#10814](https://github.com/typescript-eslint/typescript-eslint/pull/10814))
- **eslint-plugin:** [class-methods-use-this] check `accessor` methods with a function initializer ([#10796](https://github.com/typescript-eslint/typescript-eslint/pull/10796))

### ❤️ Thank You

- Ronen Amiel
- YeonJuan

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## 8.24.0 (2025-02-10)

### 🚀 Features

- **eslint-plugin:** [no-unnecessary-condition] make `allowConstantLoopConditions` more granular ([#10639](https://github.com/typescript-eslint/typescript-eslint/pull/10639))
- **utils:** add `reportUnusedInlineConfigs` to LinterOptions ([#10718](https://github.com/typescript-eslint/typescript-eslint/pull/10718))

### 🩹 Fixes

- **ast-spec:** correct YieldExpression.argument type ([#10799](https://github.com/typescript-eslint/typescript-eslint/pull/10799))
- **eslint-plugin:** [restrict-plus-operands] report adding bigints to strings when `allowNumberAndString` is `false` ([#10737](https://github.com/typescript-eslint/typescript-eslint/pull/10737))
- **eslint-plugin:** [no-misused-spread] correct and elaborate string spread report message ([#10751](https://github.com/typescript-eslint/typescript-eslint/pull/10751))

### ❤️ Thank You

- Flo Edelmann @FloEdelmann
- Josh Goldberg ✨
- Mark de Dios @peanutenthusiast
- noah
- Ronen Amiel

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## 8.23.0 (2025-02-03)

### 🚀 Features

- **eslint-plugin:** [no-unnecessary-boolean-literal-compare] enforce strictNullChecks ([#10712](https://github.com/typescript-eslint/typescript-eslint/pull/10712))
- **types:** add strict `parent` types for function-declaration, default-export and named-export nodes ([#10685](https://github.com/typescript-eslint/typescript-eslint/pull/10685))

### 🩹 Fixes

- bump ts-api-utils to ^2.0.1 ([#10761](https://github.com/typescript-eslint/typescript-eslint/pull/10761))
- **deps:** update eslint monorepo to v9.19.0 ([#10752](https://github.com/typescript-eslint/typescript-eslint/pull/10752))
- **eslint-plugin:** [no-unnecessary-type-assertion] should report readonly class properties with a literal initializer ([#10618](https://github.com/typescript-eslint/typescript-eslint/pull/10618))
- **eslint-plugin:** [switch-exhaustiveness-check] suggest with qualified name ([#10697](https://github.com/typescript-eslint/typescript-eslint/pull/10697))
- **eslint-plugin:** [no-unnecessary-template-expression] allow interpolating type parameter in type context ([#10739](https://github.com/typescript-eslint/typescript-eslint/pull/10739))
- **eslint-plugin:** [prefer-nullish-coalescing] fix missing return ([#10732](https://github.com/typescript-eslint/typescript-eslint/pull/10732))
- **eslint-plugin:** [dot-notation] handle noPropertyAccessFromIndexSignature true ([#10644](https://github.com/typescript-eslint/typescript-eslint/pull/10644))
- **eslint-plugin:** [no-restricted-imports] support regex option ([#10699](https://github.com/typescript-eslint/typescript-eslint/pull/10699))
- **eslint-plugin:** [no-shadow] ignore declare variables in definition files shadowing global variables ([#10710](https://github.com/typescript-eslint/typescript-eslint/pull/10710))

### ❤️ Thank You

- Josh Goldberg ✨
- Olivier Zalmanski @OlivierZal
- Ronen Amiel
- Ryan Poon @sopa301
- YeonJuan @yeonjuan
- Yukihiro Hasegawa @y-hsgw

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## 8.22.0 (2025-01-27)

### 🚀 Features

- **parser:** add standalone isolatedDeclarations option ([#10499](https://github.com/typescript-eslint/typescript-eslint/pull/10499))

### 🩹 Fixes

- **eslint-plugin:** [prefer-nullish-coalescing] doesn't report on ternary but on equivalent || ([#10517](https://github.com/typescript-eslint/typescript-eslint/pull/10517))
- **eslint-plugin:** [no-duplicate-type-constituents] handle nested types ([#10638](https://github.com/typescript-eslint/typescript-eslint/pull/10638))
- **eslint-plugin:** [no-shadow] don't report unnecessarily on valid ways of using module augmentation ([#10616](https://github.com/typescript-eslint/typescript-eslint/pull/10616))
- **eslint-plugin:** [no-extraneous-class] handle accessor keyword ([#10678](https://github.com/typescript-eslint/typescript-eslint/pull/10678))
- **eslint-plugin:** [prefer-readonly] autofixer doesn't add type to property that is mutated in the constructor ([#10552](https://github.com/typescript-eslint/typescript-eslint/pull/10552))
- **eslint-plugin:** [no-unnecessary-template-expression] handle template literal type ([#10612](https://github.com/typescript-eslint/typescript-eslint/pull/10612))
- **type-utils:** support matching intersection types in `TypeOrValueSpecifier` with a `PackageSpecifier` ([#10667](https://github.com/typescript-eslint/typescript-eslint/pull/10667))

### ❤️ Thank You

- Josh Goldberg ✨
- mdm317
- Olivier Zalmanski @OlivierZal
- Ronen Amiel
- YeonJuan @yeonjuan

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## 8.21.0 (2025-01-20)

### 🚀 Features

- **ast-spec:** support import attributes in `TSImportType` ([#10640](https://github.com/typescript-eslint/typescript-eslint/pull/10640))

### 🩹 Fixes

- **eslint-plugin:** [no-unnecessary-type-arguments] handle type args on jsx ([#10630](https://github.com/typescript-eslint/typescript-eslint/pull/10630))
- **eslint-plugin:** check JSX spread elements for misused spread usage ([#10653](https://github.com/typescript-eslint/typescript-eslint/pull/10653))
- **eslint-plugin:** [no-for-in-array] report on any type which may be an array or array-like ([#10535](https://github.com/typescript-eslint/typescript-eslint/pull/10535))
- **eslint-plugin:** [no-base-to-string] don't crash for recursive array or tuple types ([#10633](https://github.com/typescript-eslint/typescript-eslint/pull/10633))
- **eslint-plugin:** [no-duplicate-enum-values] handle template literal ([#10675](https://github.com/typescript-eslint/typescript-eslint/pull/10675))
- **eslint-plugin-internal:** [debug-namespace] on windows ([#10661](https://github.com/typescript-eslint/typescript-eslint/pull/10661))
- **rule-tester:** handle window root path ([#10654](https://github.com/typescript-eslint/typescript-eslint/pull/10654))
- **scope-manager:** add a reference for JSX closing element if it exists ([#10614](https://github.com/typescript-eslint/typescript-eslint/pull/10614))

### ❤️ Thank You

- Arya Emami @aryaemami59
- Ronen Amiel
- YeonJuan @yeonjuan

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## 8.20.0 (2025-01-13)

### 🚀 Features

- standardize debug namespaces to file paths ([#10599](https://github.com/typescript-eslint/typescript-eslint/pull/10599))
- **eslint-plugin:** [no-misused-spread] add new rule ([#10551](https://github.com/typescript-eslint/typescript-eslint/pull/10551))
- **eslint-plugin:** [no-deprecated] add allow options ([#10585](https://github.com/typescript-eslint/typescript-eslint/pull/10585))
- **eslint-plugin:** [consistent-type-assertions] add arrayLiteralTypeAssertions options ([#10565](https://github.com/typescript-eslint/typescript-eslint/pull/10565))

### 🩹 Fixes

- **eslint-plugin:** [no-shadow] ignore ordering of type declarations ([#10593](https://github.com/typescript-eslint/typescript-eslint/pull/10593))
- **eslint-plugin:** [no-unnecessary-condition] don't flag optional chaining for union types with an unconstrained type parameters ([#10602](https://github.com/typescript-eslint/typescript-eslint/pull/10602))

### ❤️ Thank You

- Josh Goldberg ✨
- Ronen Amiel
- YeonJuan @yeonjuan

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

## 8.19.1 (2025-01-06)

### 🩹 Fixes

- **eslint-plugin:** [no-base-to-string] check array generic type ([#10437](https://github.com/typescript-eslint/typescript-eslint/pull/10437))
- **eslint-plugin:** [no-shadow] report correctly on parameters of functions declared with the `declare` keyword ([#10543](https://github.com/typescript-eslint/typescript-eslint/pull/10543))
- **eslint-plugin:** [strict-boolean-expressions] remove remaining (unsafe) autofixes ([#10548](https://github.com/typescript-eslint/typescript-eslint/pull/10548))
- **eslint-plugin:** [no-deprecated] doesn't report on shorthand property in an object expression ([#10550](https://github.com/typescript-eslint/typescript-eslint/pull/10550))

### ❤️ Thank You

- Kirk Waiblinger
- mdm317
- Ronen Amiel
- Yukihiro Hasegawa @y-hsgw

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## 8.19.0 (2024-12-30)

### 🚀 Features

- **eslint-plugin:** [strict-boolean-expressions] check array predicate functions' return statements ([#10106](https://github.com/typescript-eslint/typescript-eslint/pull/10106))

### 🩹 Fixes

- **eslint-plugin:** add getConstraintInfo to handle generic constraints better ([#10496](https://github.com/typescript-eslint/typescript-eslint/pull/10496))
- **eslint-plugin:** [array-type] autofix with conditional types needs parentheses ([#10522](https://github.com/typescript-eslint/typescript-eslint/pull/10522))
- **eslint-plugin:** [consistent-indexed-object-style] don't report on indirect circular references ([#10537](https://github.com/typescript-eslint/typescript-eslint/pull/10537))
- **eslint-plugin:** [member-ordering] ignore method overloading ([#10536](https://github.com/typescript-eslint/typescript-eslint/pull/10536))

### ❤️ Thank You

- Karl Werner
- Kirk Waiblinger @kirkwaiblinger
- Ronen Amiel
- YeonJuan @yeonjuan

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## 8.18.2 (2024-12-23)

### 🩹 Fixes

- **eslint-plugin:** [no-deprecated] not reporting usages of deprecated declared constants as object value ([#10498](https://github.com/typescript-eslint/typescript-eslint/pull/10498))
- **eslint-plugin:** [prefer-reduce-type-parameter] don't report cases in which the fix results in a type error ([#10494](https://github.com/typescript-eslint/typescript-eslint/pull/10494))
- **eslint-plugin:** [no-unnecessary-condition] don't flag values of an unconstrained or valid type parameter ([#10473](https://github.com/typescript-eslint/typescript-eslint/pull/10473))
- **eslint-plugin:** [consistent-indexed-object-style] use a suggestion over an auto-fix if can't reliably determine that produced index signature is valid ([#10490](https://github.com/typescript-eslint/typescript-eslint/pull/10490))
- **eslint-plugin:** [no-unsafe-type-assertion] fix for unsafe assertion to a constrained type parameter ([#10461](https://github.com/typescript-eslint/typescript-eslint/pull/10461))
- **eslint-plugin:** [no-unnecessary-type-arguments] handle type/value context ([#10503](https://github.com/typescript-eslint/typescript-eslint/pull/10503))
- **eslint-plugin:** [consistent-type-assertions] allow default assertionStyle option ([#10512](https://github.com/typescript-eslint/typescript-eslint/pull/10512))
- **eslint-plugin:** [no-unnecessary-condition] handle noUncheckedIndexedAccess true ([#10514](https://github.com/typescript-eslint/typescript-eslint/pull/10514))
- **typescript-eslint:** export types so that declarations can be named for dts files ([#10513](https://github.com/typescript-eslint/typescript-eslint/pull/10513))

### ❤️ Thank You

- Brad Zacher @bradzacher
- Luke Deen Taylor @controversial
- Ronen Amiel
- Scott O'Hara
- YeonJuan @yeonjuan
- Yukihiro Hasegawa @y-hsgw

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## 8.18.1 (2024-12-16)

### 🩹 Fixes

- **eslint-plugin:** [no-unnecessary-template-expression] don't report when an expression includes comment ([#10444](https://github.com/typescript-eslint/typescript-eslint/pull/10444))
- **eslint-plugin:** handle string like index type ([#10460](https://github.com/typescript-eslint/typescript-eslint/pull/10460))
- **eslint-plugin:** [no-unnecessary-boolean-literal-compare] flag values of a type parameter with boolean type constraints ([#10474](https://github.com/typescript-eslint/typescript-eslint/pull/10474))
- **eslint-plugin:** use consistent naming for asserting types and casting values ([#10472](https://github.com/typescript-eslint/typescript-eslint/pull/10472))
- **eslint-plugin:** [no-unnecessary-condition] better message when comparing between literal types ([#10454](https://github.com/typescript-eslint/typescript-eslint/pull/10454))
- **scope-manager:** visit params decorator before nest scope ([#10475](https://github.com/typescript-eslint/typescript-eslint/pull/10475))

### ❤️ Thank You

- Kirk Waiblinger @kirkwaiblinger
- Ronen Amiel
- YeonJuan @yeonjuan

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

## 8.18.0 (2024-12-09)

### 🚀 Features

- **eslint-plugin:** [no-deprecated] report on super call of deprecated constructor ([#10397](https://github.com/typescript-eslint/typescript-eslint/pull/10397))
- **eslint-plugin:** [switch-exhaustiveness-check] add support for "no default" comment ([#10218](https://github.com/typescript-eslint/typescript-eslint/pull/10218))

### 🩹 Fixes

- typescript peer dependency ([#10373](https://github.com/typescript-eslint/typescript-eslint/pull/10373))
- **deps:** update dependency eslint to v9.16.0 ([#10471](https://github.com/typescript-eslint/typescript-eslint/pull/10471))
- **eslint-plugin:** [no-deprecated] check if a JSX attribute is deprecated ([#10374](https://github.com/typescript-eslint/typescript-eslint/pull/10374))
- **eslint-plugin:** [no-base-to-string] handle more robustly when multiple `toString()` declarations are present for a type ([#10432](https://github.com/typescript-eslint/typescript-eslint/pull/10432))
- **eslint-plugin:** [use-unknown-in-catch-callback-variable] only flag function literals ([#10436](https://github.com/typescript-eslint/typescript-eslint/pull/10436))

### ❤️  Thank You

- Kim Sang Du @developer-bandi
- Kirk Waiblinger @kirkwaiblinger
- mdm317
- rtritto

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## 8.17.0 (2024-12-02)

### 🚀 Features

- **eslint-plugin:** [prefer-promise-reject-errors] options to allow any and unknown ([#10392](https://github.com/typescript-eslint/typescript-eslint/pull/10392))
- **typescript-estree:** add package version to ts version warning ([#10343](https://github.com/typescript-eslint/typescript-eslint/pull/10343))

### 🩹 Fixes

- **eslint-plugin:** [no-unnecessary-template-expressions] allow template expressions used to make trailing whitespace visible ([#10363](https://github.com/typescript-eslint/typescript-eslint/pull/10363))
- **eslint-plugin:** remove references to "extendDefaults" in no-restricted-types ([#10401](https://github.com/typescript-eslint/typescript-eslint/pull/10401))
- **eslint-plugin:** [promise-function-async] handle function overloading ([#10304](https://github.com/typescript-eslint/typescript-eslint/pull/10304))
- **website:** press the Report an Issue button makes error if eslintrc does not include rules ([#10367](https://github.com/typescript-eslint/typescript-eslint/pull/10367))

### ❤️  Thank You

- Kim OhSeong @bkks1004
- Kim Sang Du @developer-bandi
- Kirk Waiblinger @kirkwaiblinger
- Marco Pasqualetti @marcalexiei
- Maria José Solano @MariaSolOs
- Ronen Amiel

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

## 8.16.0 (2024-11-25)

### 🚀 Features

- support TypeScript 5.7 ([#10372](https://github.com/typescript-eslint/typescript-eslint/pull/10372))
- **eslint-plugin:** [max-params] add function overload and function type support ([#10312](https://github.com/typescript-eslint/typescript-eslint/pull/10312))
- **eslint-plugin:** [no-base-to-string] check Array.prototype.join ([#10287](https://github.com/typescript-eslint/typescript-eslint/pull/10287))

### 🩹 Fixes

- **typescript-estree:** update conditions for unsupported version warning ([#10385](https://github.com/typescript-eslint/typescript-eslint/pull/10385))

### ❤️  Thank You

- Inga @inga-lovinde
- Josh Goldberg ✨
- Kim Sang Du @developer-bandi
- YeonJuan @yeonjuan

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## 8.15.0 (2024-11-18)

### 🚀 Features

- **eslint-plugin:** added related-getter-setter-pairs rule ([#10192](https://github.com/typescript-eslint/typescript-eslint/pull/10192))
- **eslint-plugin:** new rule `no-unsafe-type-assertion` ([#10051](https://github.com/typescript-eslint/typescript-eslint/pull/10051))
- **eslint-plugin:** [prefer-nullish-coalescing] fix detection of `ignoreConditionalTests` involving boolean `!` operator ([#10299](https://github.com/typescript-eslint/typescript-eslint/pull/10299))
- **rule-tester:** run method - avoid to infer type parameter from `tests` param ([#10324](https://github.com/typescript-eslint/typescript-eslint/pull/10324))
- **typescript-eslint:** allow infinitely deep array nesting in config function and extends ([#10333](https://github.com/typescript-eslint/typescript-eslint/pull/10333))
- **utils:** add new optional `language` field to `FlatConfig.Config` type ([#10326](https://github.com/typescript-eslint/typescript-eslint/pull/10326))

### 🩹 Fixes

- add missing peer dependencies ([#9744](https://github.com/typescript-eslint/typescript-eslint/pull/9744))
- **eslint-plugin:** [consistent-indexed-object-style] handle circular mapped types ([#10301](https://github.com/typescript-eslint/typescript-eslint/pull/10301))
- **eslint-plugin:** [await-thenable, return-await] don't flag awaiting unconstrained type parameter as unnecessary ([#10314](https://github.com/typescript-eslint/typescript-eslint/pull/10314))
- **eslint-plugin:** [explicit-module-boundary-types] and [explicit-function-return-type] don't report on `as const satisfies` ([#10315](https://github.com/typescript-eslint/typescript-eslint/pull/10315))
- **eslint-plugin:** report deprecations used in default export ([#10330](https://github.com/typescript-eslint/typescript-eslint/pull/10330))
- **utils:** add defaultOptions to meta in rule ([#10339](https://github.com/typescript-eslint/typescript-eslint/pull/10339))

### ❤️  Thank You

- Bartosz @burtek
- Brad Zacher @bradzacher
- Ethan Wu
- Josh Goldberg ✨
- Kim Sang Du @developer-bandi
- Luis Sebastian Urrutia Fuentes @LuisUrrutia
- Marco Pasqualetti @marcalexiei
- Phillip Huang
- Ronen Amiel
- Szydlak @wszydlak

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## 8.14.0 (2024-11-11)

### 🚀 Features

- **eslint-plugin:** [no-confusing-void-expression] add an option to ignore void<->void ([#10067](https://github.com/typescript-eslint/typescript-eslint/pull/10067))
- **eslint-plugin:** [await-thenable] report unnecessary `await using` statements ([#10209](https://github.com/typescript-eslint/typescript-eslint/pull/10209))

### 🩹 Fixes

- **deps:** update dependency eslint to v9.14.0 ([#10309](https://github.com/typescript-eslint/typescript-eslint/pull/10309))
- **deps:** update docusaurus monorepo to v3.6.0 ([#10319](https://github.com/typescript-eslint/typescript-eslint/pull/10319))
- **eslint-plugin:** [no-unnecessary-condition] improve error message for literal comparisons ([#10194](https://github.com/typescript-eslint/typescript-eslint/pull/10194))
- **eslint-plugin:** [no-misused-promises] improve report loc for methods ([#10216](https://github.com/typescript-eslint/typescript-eslint/pull/10216))
- **scope-manager:** fix asserted increments not being marked as write references ([#10271](https://github.com/typescript-eslint/typescript-eslint/pull/10271))

### ❤️  Thank You

- Gyumong @Gyumong
- Jan Ochwat @janek515
- Kirk Waiblinger @kirkwaiblinger
- Ronen Amiel

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## 8.13.0 (2024-11-04)

### 🚀 Features

- add `options` property to `ImportExpression` node ([#10255](https://github.com/typescript-eslint/typescript-eslint/pull/10255))
- **eslint-plugin:** disable `no-class-assign` rule in `eslint-recommended` config ([#10250](https://github.com/typescript-eslint/typescript-eslint/pull/10250))
- **eslint-plugin:** [prefer-nullish-coalescing] add option `ignoreBooleanCoercion` ([#9924](https://github.com/typescript-eslint/typescript-eslint/pull/9924))
- **eslint-plugin:** [only-throw-error] add allow option ([#10221](https://github.com/typescript-eslint/typescript-eslint/pull/10221))

### 🩹 Fixes

- **deps:** update dependency @eslint-community/regexpp to v4.12.1 ([#10269](https://github.com/typescript-eslint/typescript-eslint/pull/10269))
- **eslint-plugin:** [no-unnecessary-condition] falsey bigint should be falsey ([#10205](https://github.com/typescript-eslint/typescript-eslint/pull/10205))
- **eslint-plugin:** [no-deprecated] report on deprecated variables used inside dynamic imports ([#10261](https://github.com/typescript-eslint/typescript-eslint/pull/10261))
- **eslint-plugin:** [no-deprecated] report when exported class implements/extends deprecated entity ([#10259](https://github.com/typescript-eslint/typescript-eslint/pull/10259))
- **eslint-plugin:** [consistent-type-definitions] don't leave trailing parens when fixing type to interface ([#10235](https://github.com/typescript-eslint/typescript-eslint/pull/10235))
- **eslint-plugin:** [switch-exhaustiveness-check] add support for covering a missing property with `undefined` ([#10232](https://github.com/typescript-eslint/typescript-eslint/pull/10232))
- **types:** parent property type annotation in the ImportAttribute node ([#10258](https://github.com/typescript-eslint/typescript-eslint/pull/10258))
- **utils:** allow an array for the values of SharedConfig ([#10217](https://github.com/typescript-eslint/typescript-eslint/pull/10217))

### ❤️  Thank You

- auvred @auvred
- Kim Sang Du @developer-bandi
- Kirk Waiblinger @kirkwaiblinger
- Mark de Dios @peanutenthusiast
- Ronen Amiel
- Trygve Aaberge
- YeonJuan @yeonjuan
- Yosuke Ota @ota-meshi

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

## 8.12.2 (2024-10-29)

### 🩹 Fixes

- **eslint-plugin:** [switch-exhaustiveness-check] invert `considerDefaultExhaustiveForUnions` ([#10223](https://github.com/typescript-eslint/typescript-eslint/pull/10223))

### ❤️  Thank You

- Kirk Waiblinger @kirkwaiblinger

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

## 8.12.1 (2024-10-28)

### 🚀 Features

- **eslint-plugin:** [prefer-nullish-coalescing] add support for assignment expressions ([#10152](https://github.com/typescript-eslint/typescript-eslint/pull/10152))
- **eslint-plugin:** [consistent-indexed-object-style] report mapped types ([#10160](https://github.com/typescript-eslint/typescript-eslint/pull/10160))
- **eslint-plugin:** [switch-exhaustiveness-check] add considerDefaultExhaustiveForUnions option ([#9954](https://github.com/typescript-eslint/typescript-eslint/pull/9954))
- **eslint-plugin:** [no-base-to-string] handle String() ([#10005](https://github.com/typescript-eslint/typescript-eslint/pull/10005))
- **typescript-eslint:** improve undefined extension handling ([#10177](https://github.com/typescript-eslint/typescript-eslint/pull/10177))

### 🩹 Fixes

- **eslint-plugin:** [no-unsafe-return] don't reiterate through all type parts for each part ([#10203](https://github.com/typescript-eslint/typescript-eslint/pull/10203))
- **website:** enable `noImplicitAny` ([#10175](https://github.com/typescript-eslint/typescript-eslint/pull/10175))
- **rule-tester:** use cwd option to set base path for tests with file name ([#10201](https://github.com/typescript-eslint/typescript-eslint/pull/10201))

### ❤️  Thank You

- Abraham Guo
- Dave @reduckted
- Kim Sang Du @developer-bandi
- Kirk Waiblinger @kirkwaiblinger
- Maxim Stykow @mstykow
- Terry Fu
- YeonJuan @yeonjuan

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

See https://github.com/typescript-eslint/typescript-eslint/releases/tag/v8.12.1

## 8.11.0 (2024-10-21)

### 🚀 Features

- **eslint-plugin:** [no-base-to-string] add support for catching toLocaleString ([#10138](https://github.com/typescript-eslint/typescript-eslint/pull/10138))
- **eslint-plugin:** [no-unnecessary-type-parameters] add suggestion fixer ([#10149](https://github.com/typescript-eslint/typescript-eslint/pull/10149))

### 🩹 Fixes

- **eslint-plugin:** [class-literal-property-style] don't report nodes with `override` keyword ([#10135](https://github.com/typescript-eslint/typescript-eslint/pull/10135))
- **rule-tester:** allow custom filename outside directory ([#10147](https://github.com/typescript-eslint/typescript-eslint/pull/10147))

### ❤️  Thank You

- Kirk Waiblinger @kirkwaiblinger
- Lotfi Meklati @lotmek
- Yukihiro Hasegawa @y-hsgw

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

## 8.10.0 (2024-10-17)

### 🚀 Features

- support TypeScript 5.6 ([#9972](https://github.com/typescript-eslint/typescript-eslint/pull/9972))

### 🩹 Fixes

- **typescript-eslint:** propagate `name` field to extended configs in `config` helper ([#10094](https://github.com/typescript-eslint/typescript-eslint/pull/10094))

### ❤️  Thank You

- auvred @auvred
- Josh Goldberg ✨

You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.

## 8.9.0 (2024-10-14)


### 🚀 Features

- **rule-tester:** hooks for test cases ([#10109](https://github.com/typescript-eslint/typescript-eslint/pull/10109))

### 🩹 Fixes

- **eslint-plugin:** [no-unnecessary-type-parameters] cannot assume variables are either type or value ([#10093](https://github.com/typescript-eslint/typescript-eslint/pull/10093))
- **eslint-plugin:** [return-await] sync the behavior with await-thenable ([#10069](https://github.com/typescript-eslint/typescript-eslint/pull/10069))
- **eslint-plugin:** [prefer-literal-enum-member] report a different error message when `allowBitwiseExpressions` is enabled ([#10096](https://github.com/typescript-eslint/typescript-eslint/pull/10096))
- **eslint-plugin:** [no-loop-func] sync from upstream base rule ([#10103](https://github.com/typescript-eslint/typescript-eslint/pull/10103))
- **eslint-plugin:** [no-unused-vars] never report the naming of an enum member ([#10117](https://github.com/typescript-eslint/typescript-eslint/pull/10117))
- **eslint-plugin:** correct use-at-your-own-risk type definitions ([#10049](https://github.com/typescript-eslint/typescript-eslint/pull/10049))
- **eslint-plugin:** handle unions in await...for ([#10110](https://github.com/typescript-eslint/typescript-eslint/pull/10110))
- **rule-tester:** merge provided `linterOptions` ([#10131](https://github.com/typescript-eslint/typescript-eslint/pull/10131))
- **scope-manager:** [no-use-before-define] do not treat nested namespace aliases as variable references ([#10095](https://github.com/typescript-eslint/typescript-eslint/pull/10095))
- **typescript-estree:** improve project service error message when file extension missing from extraFileExtensions ([#10076](https://github.com/typescript-eslint/typescript-eslint/pull/10076))
- **visitor-keys:** reorder `TSSatisfiesExpression` and `TSTypeAssertion` ([#10139](https://github.com/typescript-eslint/typescript-eslint/pull/10139))

### ❤️  Thank You

- Abraham Guo
- Anna Bocharova @RobinTail
- Arya Emami @aryaemami59
- auvred @auvred
- Joshua Chen
- Kirk Waiblinger @kirkwaiblinger
- Lotfi Meklati @lotmek
- mdm317
- Ronen Amiel
- Sukka
- YeonJuan @yeonjuan

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## 8.8.1 (2024-10-07)


### 🩹 Fixes

- **eslint-plugin:** stop warning on @ts-nocheck comments which aren't at the beginning of the file ([#10046](https://github.com/typescript-eslint/typescript-eslint/pull/10046))
- **typescript-estree:** fix crash when running from a `node --eval` script ([#10098](https://github.com/typescript-eslint/typescript-eslint/pull/10098))
- **typescript-estree:** ensure mjs/mts files are always be parsed as ESM ([#10011](https://github.com/typescript-eslint/typescript-eslint/pull/10011))

### ❤️  Thank You

- Brad Zacher @bradzacher
- Ronen Amiel
- WhitePiano @goldentrash

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## 8.8.0 (2024-09-30)


### 🚀 Features

- **eslint-plugin:** [no-unnecessary-condition] add checkTypePredicates ([#10009](https://github.com/typescript-eslint/typescript-eslint/pull/10009))
- **eslint-plugin:** [await-thenable] check for-await loop iteree ([#10008](https://github.com/typescript-eslint/typescript-eslint/pull/10008))

### 🩹 Fixes

- remove `export type *` in d.ts to support TS<5.0 ([#10070](https://github.com/typescript-eslint/typescript-eslint/pull/10070))
- **eslint-plugin:** [no-unnecessary-template-expression] should underline template syntax with squiggly lines ([#10044](https://github.com/typescript-eslint/typescript-eslint/pull/10044))
- **eslint-plugin:** [no-deprecated] max callstack exceeded when class implements itself ([#10040](https://github.com/typescript-eslint/typescript-eslint/pull/10040))
- **eslint-plugin:** [no-misused-promises] check contextual type ([#10042](https://github.com/typescript-eslint/typescript-eslint/pull/10042))
- **eslint-plugin:** [prefer-literal-enum-member] allow nested bitwise operations ([#10037](https://github.com/typescript-eslint/typescript-eslint/pull/10037))
- **type-utils:** check for type parameters on `isBuiltinSymbolLikeRecurser()` ([#10026](https://github.com/typescript-eslint/typescript-eslint/pull/10026))
- **utils:** update missing type information message ([#10043](https://github.com/typescript-eslint/typescript-eslint/pull/10043))

### ❤️  Thank You

- auvred @auvred
- Josh Goldberg ✨
- Kirk Waiblinger @kirkwaiblinger
- Ronen Amiel
- Tarun Chauhan @tarunrajput
- YeonJuan @yeonjuan

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