typescript-eslint Release Notes

8.58.0 (2026-03-30)

🚀 Features

support TypeScript 6 (#12124)

🩹 Fixes

eslint-plugin: crash in no-unnecessary-type-arguments (#12163)

eslint-plugin: [no-extraneous-class] handle index signatures (#12142)

eslint-plugin: [prefer-regexp-exec] avoid fixing unknown RegExp flags (#12161)

❤️ 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.

8.57.2 (2026-03-23)

🩹 Fixes

• eslint-plugin: [prefer-optional-chain] remove dangling closing parenthesis (#11865)
• eslint-plugin: [array-type] ignore Array and ReadonlyArray without type arguments (#11971)
• eslint-plugin: [no-restricted-types] flag banned generics in extends or implements (#12120)
• eslint-plugin: [no-unsafe-return] false positive on unwrapping generic (#12125)
• eslint-plugin: [no-unsafe-return] false positive on unwrapping generic (#12125)
• eslint-plugin: [no-useless-default-assignment] skip reporting false positives for unresolved type parameters (#12127)
• eslint-plugin: [prefer-readonly-parameter-types] preserve type alias infomation (#11954)
• typescript-estree: skip createIsolatedProgram fallback for projectService (#12066, #12065)

❤️ Thank You

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

See GitHub Releases for more information.
You can read about our versioning strategy and releases on our website.

8.57.0 (2026-03-09)

🚀 Features

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

🩹 Fixes

• eslint-plugin: [strict-void-return] false positives with overloads (#12055)
• eslint-plugin: handle statically analyzable computed keys in prefer-readonly (#12079)
• eslint-plugin: guard against negative paramIndex in no-useless-default-assignment (#12077)
• eslint-plugin: [prefer-promise-reject-errors] add allow TypeOrValueSpecifier to prefer-promise-reject-errors (#12094)
• eslint-plugin: [no-base-to-string] fix false positive for toString with overloads (#12089)
  -typescript-estree: switch back to use ts.getModifiers() (#12034)
  -typescript-estree: if the template literal is tagged and the text has an invalid escape, cooked will be null (#11355)

❤️ Thank You

• Brad Zacher @bradzacher
• Brian Schlenker @bschlenk
• Evyatar Daud @StyleShit
• fisker Cheung @fisker
• 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.

8.55.0 (2026-02-09)

🚀 Features

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

🩹 Fixes

• eslint-plugin: [no-unused-vars] remove trailing newline when removing entire import (#11990)
• eslint-plugin: [no-useless-default-assignment] require strictNullChecks (#11966, #12000)
• eslint-plugin: [no-useless-default-assignment] report unnecessary defaults in ternary expressions (#11984)
• eslint-plugin: [no-useless-default-assignment] reduce param index to ts this handling (#11949)
• typescript-estree: forbid invalid modifier in object expression (#11931)

❤️ Thank You

• Christian Rose @chrros95
• fisker Cheung @fisker
• 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.

8.54.0 (2026-01-26)

🚀 Features

• eslint-plugin-internal: add prefer-tsutils-methods rule (#11974, #11625)
• scope-manager: support ScopeManager#addGlobals (#11914)
• typescript-estree: add shortcut methods to ParserServicesWithTypeInformation (#11965, #11955)

🩹 Fixes

• eslint-plugin: [no-unused-private-class-members] private destructured class member is defined but used (#11785)
• eslint-plugin: [no-unnecessary-type-assertion] check both base constraint and actual type for non-null assertions (#11967, #11559)
• scope-manager: fix catch clause scopes def.name (#11982)
• scope-manager: prevent misidentification of "use strict" directives (#11995)
• utils: handle missing FlatESLint and LegacyESLint (#11958)

❤️ Thank You

• Brad Zacher @bradzacher
• fnx @DMartens
• Francesco Trotta
• 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.

8.53.0 (2026-01-12)

🚀 Features

• eslint-plugin: [no-unused-vars] add a fixer to remove unused imports (#11922)
• eslint-plugin: add rule [strict-void-return] (#9707)
• project-service: allow passing Partial<ts.server.ServerHost> to project service (#11932)

🩹 Fixes

• eslint-plugin: replace unclear "error typed" with more helpful description (#11704)
• eslint-plugin: [no-useless-default-assignment] fix false positive for parameters corresponding to a rest parameter (#11916)
  -typescript-estree: forbid type-only import with both default and named specifiers (#11930)
  -typescript-estree: fix syntax check for using declaration (#11910)
  -typescript-estree: forbid invalid class implements (#11934)
  -typescript-estree: forbid invalid "import equals" declaration (#11936)
  -typescript-estree: forbid invalid extends and implements in interface declaration (#11935)

❤️ Thank You

• auvred @auvred
• Brad Zacher @bradzacher
• fisker Cheung @fisker
• Josh Goldberg
• Josh Goldberg ✨
• Kirk Waiblinger
• Niki @phaux
• Nikita
• SungHyun627 @SungHyun627
• Will Harney @wjhsf

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