Update ESLint

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@typescript-eslint/eslint-plugin (source)	^8.17.0 -> ^8.26.1
eslint-plugin-jest	^28.9.0 -> ^28.11.0
eslint-plugin-prettier	^5.2.1 -> ^5.2.3

---

Release Notes

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

v8.26.1

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🩹 Fixes

• eslint-plugin: [no-unsafe-return] handle recursive type (#​10883)
• eslint-plugin: [prefer-nullish-coalescing] treat any/unknown as eligible for nullish coalescing (#​10865)

❤️ Thank You

• Kirk Waiblinger @​kirkwaiblinger
• YeonJuan @​yeonjuan

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

v8.26.0

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🚀 Features

• eslint-plugin: [unified-signatures] support ignoring overload signatures with different JSDoc comments (#​10781)
• eslint-plugin: [explicit-module-boundary-types] add an option to ignore overload implementations (#​10889)
• eslint-plugin: [no-unused-var] handle implicit exports in declaration files (#​10714)
• support TypeScript 5.8 (#​10903)
• eslint-plugin: [no-unnecessary-type-parameters] special case tuples and parameter location arrays as single-use (#​9536)

🩹 Fixes

• eslint-plugin: [no-unnecessary-type-assertion] handle unknown (#​10875)
• eslint-plugin: [no-invalid-void-type] report accessor properties with an invalid void type (#​10864)
• eslint-plugin: [unified-signatures] does not differentiate truly private methods (#​10806)

❤️ Thank You

• Andrea Simone Costa @​jfet97
• Dirk Luijk @​dirkluijk
• Ronen Amiel
• YeonJuan @​yeonjuan
• Yukihiro Hasegawa @​y-hsgw

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

v8.25.0

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🚀 Features

• eslint-plugin: [no-misused-spread] add suggestions (#​10719)

🩹 Fixes

• eslint-plugin: [prefer-nullish-coalescing] report on chain expressions in a ternary (#​10708)
• eslint-plugin: [no-deprecated] report usage of deprecated private identifiers (#​10844)
• eslint-plugin: [unified-signatures] handle getter-setter (#​10818)

❤️ Thank You

• Olivier Zalmanski @​OlivierZal
• Ronen Amiel
• YeonJuan @​yeonjuan

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

v8.24.1

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🩹 Fixes

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

❤️ Thank You

• Ronen Amiel
• YeonJuan

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

v8.24.0

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🚀 Features

• eslint-plugin: [no-unnecessary-condition] make allowConstantLoopConditions more granular (#​10639)

🩹 Fixes

• eslint-plugin: [no-misused-spread] correct and elaborate string spread report message (#​10751)
• eslint-plugin: [restrict-plus-operands] report adding bigints to strings when allowNumberAndString is false (#​10737)

❤️ Thank You

• Josh Goldberg ✨
• noah
• Ronen Amiel

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

v8.23.0

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🚀 Features

• eslint-plugin: [no-unnecessary-boolean-literal-compare] enforce strictNullChecks (#​10712)

🩹 Fixes

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

❤️ Thank You

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

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

v8.22.0

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🩹 Fixes

• eslint-plugin: [no-unnecessary-template-expression] handle template literal type (#​10612)
• eslint-plugin: [prefer-readonly] autofixer doesn't add type to property that is mutated in the constructor (#​10552)
• eslint-plugin: [no-extraneous-class] handle accessor keyword (#​10678)
• eslint-plugin: [no-shadow] don't report unnecessarily on valid ways of using module augmentation (#​10616)
• eslint-plugin: [no-duplicate-type-constituents] handle nested types (#​10638)
• eslint-plugin: [prefer-nullish-coalescing] doesn't report on ternary but on equivalent || (#​10517)

❤️ Thank You

• mdm317
• Olivier Zalmanski @​OlivierZal
• Ronen Amiel
• YeonJuan @​yeonjuan

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

v8.21.0

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🩹 Fixes

• eslint-plugin: [no-duplicate-enum-values] handle template literal (#​10675)
• eslint-plugin: [no-base-to-string] don't crash for recursive array or tuple types (#​10633)
• eslint-plugin: [no-for-in-array] report on any type which may be an array or array-like (#​10535)
• eslint-plugin: check JSX spread elements for misused spread usage (#​10653)
• eslint-plugin: [no-unnecessary-type-arguments] handle type args on jsx (#​10630)

❤️ Thank You

• Ronen Amiel
• YeonJuan @​yeonjuan

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

v8.20.0

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🚀 Features

• eslint-plugin: [consistent-type-assertions] add arrayLiteralTypeAssertions options (#​10565)
• eslint-plugin: [no-deprecated] add allow options (#​10585)
• eslint-plugin: [no-misused-spread] add new rule (#​10551)

🩹 Fixes

• eslint-plugin: [no-unnecessary-condition] don't flag optional chaining for union types with an unconstrained type parameters (#​10602)
• eslint-plugin: [no-shadow] ignore ordering of type declarations (#​10593)

❤️ Thank You

• Josh Goldberg ✨
• Ronen Amiel
• YeonJuan @​yeonjuan

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

v8.19.1

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🩹 Fixes

• eslint-plugin: [no-unnecessary-type-assertion] handle literal types (#​10523)
• eslint-plugin: [no-deprecated] doesn't report on shorthand property in an object expression (#​10550)
• eslint-plugin: [strict-boolean-expressions] remove remaining (unsafe) autofixes (#​10548)
• eslint-plugin: [no-shadow] report correctly on parameters of functions declared with the declare keyword (#​10543)
• eslint-plugin: [no-base-to-string] check array generic type (#​10437)

❤️ Thank You

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

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

v8.19.0

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🚀 Features

• eslint-plugin: [strict-boolean-expressions] check array predicate functions' return statements (#​10106)

🩹 Fixes

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

❤️ Thank You

• Karl Werner
• Kirk Waiblinger @​kirkwaiblinger
• Ronen Amiel
• YeonJuan @​yeonjuan

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

v8.18.2

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🩹 Fixes

• eslint-plugin: [no-unnecessary-condition] handle noUncheckedIndexedAccess true (#​10514)
• eslint-plugin: [consistent-type-assertions] allow default assertionStyle option (#​10512)
• eslint-plugin: [no-unnecessary-type-arguments] handle type/value context (#​10503)
• eslint-plugin: [no-unsafe-type-assertion] fix for unsafe assertion to a constrained type parameter (#​10461)
• 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)
• eslint-plugin: [no-unnecessary-condition] don't flag values of an unconstrained or valid type parameter (#​10473)
• eslint-plugin: [prefer-reduce-type-parameter] don't report cases in which the fix results in a type error (#​10494)
• eslint-plugin: [no-deprecated] not reporting usages of deprecated declared constants as object value (#​10498)

❤️ Thank You

• Luke Deen Taylor @​controversial
• Ronen Amiel
• Scott O'Hara
• YeonJuan @​yeonjuan
• Yukihiro Hasegawa @​y-hsgw

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

v8.18.1

Compare Source

🩹 Fixes

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

❤️ Thank You

• Kirk Waiblinger @​kirkwaiblinger
• Ronen Amiel
• YeonJuan @​yeonjuan

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

v8.18.0

Compare Source

🚀 Features

• eslint-plugin: [switch-exhaustiveness-check] add support for "no default" comment (#​10218)
• eslint-plugin: [no-deprecated] report on super call of deprecated constructor (#​10397)

🩹 Fixes

• eslint-plugin: [use-unknown-in-catch-callback-variable] only flag function literals (#​10436)
• eslint-plugin: [no-base-to-string] handle more robustly when multiple toString() declarations are present for a type (#​10432)
• eslint-plugin: [no-deprecated] check if a JSX attribute is deprecated (#​10374)
• typescript peer dependency (#​10373)

❤️ Thank You

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

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

jest-community/eslint-plugin-jest (eslint-plugin-jest)

v28.11.0

Compare Source

Features

• valid-expect: allow calling expect with no arguments (#​1688) (ff0349e)

28.10.1 (2025-01-15)

Bug Fixes

• padding-around-test-blocks: update description (#​1691) (9cb4ecc)

v28.10.1

Compare Source

Bug Fixes

• padding-around-test-blocks: update description (#​1691) (9cb4ecc)

v28.10.0

Compare Source

Features

• unbound-method: ignore functions passed to jest.mocked (#​1681) (d868636)

prettier/eslint-plugin-prettier (eslint-plugin-prettier)

v5.2.3

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Patch Changes

• #​703 9c6141f Thanks @​BPScott! - Add name field to recommended flat config

v5.2.2

Compare Source

Patch Changes

• #​700 aa5b59f Thanks @​ntnyq! - fix: report node when loc not found

---

Configuration

📅 Schedule: Branch creation - "on the 1st day of the month" in timezone America/Los_Angeles, Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.99%. Comparing base (7a1353a) to head (17e6f50).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #178      +/-   ##
==========================================
+ Coverage   92.79%   92.99%   +0.20%     
==========================================
  Files          16       16              
  Lines         999      999              
  Branches      247      247              
==========================================
+ Hits          927      929       +2     
+ Misses         65       63       -2     
  Partials        7        7              

Flag	Coverage Δ
metalsmith-collections-related	100.00% <ø> (ø)
metalsmith-css-unused	83.33% <ø> (ø)
metalsmith-github-profile	77.77% <ø> (ø)
metalsmith-htaccess	100.00% <ø> (ø)
metalsmith-html-glob	97.67% <ø> (ø)
metalsmith-html-linter	90.62% <ø> (ø)
metalsmith-html-relative	97.43% <ø> (ø)
metalsmith-html-sri	90.90% <ø> (ø)
metalsmith-html-unused	100.00% <ø> (ø)
metalsmith-include-files	95.83% <ø> (ø)
metalsmith-link-checker	96.05% <ø> (+1.31%)	⬆️
metalsmith-mermaid	97.22% <ø> (ø)
metalsmith-multi-collections	77.77% <ø> (ø)
metalsmith-reading-time	100.00% <ø> (ø)
metalsmith-tracer	88.65% <ø> (ø)
metalsmith-vega	89.83% <ø> (ø)

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