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fix(eslint-plugin): [prefer-optional-chain] skip optional chaining when it could change the result#11702

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bradzacher merged 6 commits intotypescript-eslint:mainfrommdm317:fix-11700
Oct 19, 2025

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@mdm317mdm317 commentedOct 16, 2025•
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PR Checklist

When applying optional chaining, if the transformation has the potential to alter the evaluation result,
the previous operand should not be included, even when it appears useless.

Conversely, if the transformation is guaranteed to preserve the result,
the previous operand should be included in the chain, even when it’s useless.

Not convert to optional-chain

declare const a: { b?: string };a && a.b != "4"a == null || a.b === "foo"...more cases

Conver to optional-chain

declare const a: { b?: string };a && a.b != nulla && a.b != undefineda && a.b  !== undefined...more cases

see Algorithm

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☁️Nx Cloud last updated this comment at2025-10-17 17:41:34 UTC

@mdm317mdm317 changed the titlefix(eslint-plugin): [prefer-optional-chain] remove unnecessary operator checkfix(eslint-plugin): [prefer-optional-chain] skip optional chaining when it could change the resultOct 16, 2025
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.66%. Comparing base (3f5fbf6) to head (fd98e65).
⚠️ Report is 1 commits behind head on main.

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@@            Coverage Diff             @@##             main   #11702      +/-   ##==========================================- Coverage   90.67%   90.66%   -0.01%==========================================  Files         518      518                Lines       52466    52415      -51       Branches     8694     8679      -15     ==========================================- Hits        47571    47520      -51  Misses       4881     4881                Partials       14       14
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unittest90.66% <100.00%> (-0.01%)⬇️

Flags with carried forward coverage won't be shown.Click here to find out more.

Files with missing linesCoverage Δ
.../rules/prefer-optional-chain-utils/analyzeChain.ts100.00% <100.00%> (ø)
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@mdm317mdm317 marked this pull request as ready for reviewOctober 16, 2025 16:39
`,
`
declare const foo: { bar: number };
foo != null && foo.bar !== x;

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Looks likex is undeclared here, so this is an error type. Might be good to make it explicit?

'foo != null && foo.bar != x;',
`
declare const foo: { bar: number };
foo && foo.bar == x;

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Let's declarex with a type here? Unless we're intentionally testing undeclared variables?

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I didn’t declare it because I wanted to test that it doesn’t convert to an optional chain when we don’t knowx’s type.
But thinking about what you said, testing with an error type feels odd and doesn’t clearly show the test’s purpose.

How about declaring x with the typeany instead?

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@kirkwaiblingerkirkwaiblingerOct 17, 2025•
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I think both are potentially valid tests! But I would just make the intention explicit like:

declareconstfoo:{bar:number};declareconstanee:any;foo&&foo.bar==anee;
// intentionally tests that an undeclared variable doesn't trigger an autofixdeclareconstfoo:{bar:number};foo&&foo.bar==undeclaredVar;

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@kirkwaiblingerkirkwaiblingerOct 17, 2025•
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Looks like there's a minor bug somewhere with:

declareconstfoo:{bar:number|null}|undefined;if(foo===undefined||foo.bar===null){// suggests to foo?.bar === null, which is not equivalent.}else{foo.bar.toExponential();// after accepting fix, this crashes if `foo` is `undefined`.}

I guess this should either not report or it could maybe try to usefoo?.bar == null? But this seems kind of bad since it is impossible to work with for an=== nullishValue-prefering user

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if(
includesType(parserServices,operand.comparedName,ts.TypeFlags.Null)
){
// we know the next operand is not a `null` check and that this
// operand includes `null` - which means that making this an
// optional chain would change the runtime behavior of the expression
returnnull;
}

I believe this bug didn’t originate from this PR — it seems to have existed beforehand.
Since I wasn’t the original author, it might take some time to fix it properly.

If possible, we could apply a quick hotfix for the current issue first and then open a new issue to track it, but it’s just a suggestion — feel free to decide as you think best.

In any case, I’ll start digging into it now.

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That's fine if we defer it!

Just out of curiosity, do you mean to say it didn't originate inthis PR, ie#11702, or in#11533? (either way we can defer it just good to know)

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Looks like it's on the right track, but minor touchups and a question about one bug that I saw.

Thanks for looking at this so quickly! ❤️

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@kirkwaiblingerkirkwaiblinger added the 1 approval>=1 team member has approved this PR; we're now leaving it open for more reviews before we merge labelOct 17, 2025
@bradzacherbradzacher merged commit698e7a8 intotypescript-eslint:mainOct 19, 2025
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| datasource | package                          | from   | to     || ---------- | -------------------------------- | ------ | ------ || npm        | @typescript-eslint/eslint-plugin | 8.46.1 | 8.46.2 || npm        | @typescript-eslint/parser        | 8.46.1 | 8.46.2 |## [v8.46.2](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8462-2025-10-20)##### 🩹 Fixes- **eslint-plugin:** \[prefer-optional-chain] skip optional chaining when it could change the result ([#11702](typescript-eslint/typescript-eslint#11702))##### ❤️ Thank You- mdm317You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.
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This PR contains the following updates:| Package | Change | Age | Confidence ||---|---|---|---|| [@typescript-eslint/eslint-plugin](https://typescript-eslint.io/packages/eslint-plugin) ([source](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin)) | [`8.39.1` -> `8.47.0`](https://renovatebot.com/diffs/npm/@typescript-eslint%2feslint-plugin/8.39.1/8.47.0) | [![age](https://developer.mend.io/api/mc/badges/age/npm/@typescript-eslint%2feslint-plugin/8.47.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@typescript-eslint%2feslint-plugin/8.39.1/8.47.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) || [@typescript-eslint/parser](https://typescript-eslint.io/packages/parser) ([source](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser)) | [`8.39.1` -> 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tagged primitives ([#&#8203;11660](typescript-eslint/typescript-eslint#11660))- **typescript-estree:** forbid abstract method and accessor to have implementation ([#&#8203;11657](typescript-eslint/typescript-eslint#11657))- **eslint-plugin:** removed error type previously deprecated ([#&#8203;11674](typescript-eslint/typescript-eslint#11674))- **eslint-plugin:** \[no-deprecated] ignore deprecated `export import`s ([#&#8203;11603](typescript-eslint/typescript-eslint#11603))- **eslint-plugin:** \[unbound-method] improve wording around `this: void` and binding ([#&#8203;11634](typescript-eslint/typescript-eslint#11634))- **rule-tester:** deprecate TestCaseError#type and LintMessage#nodeType ([#&#8203;11628](typescript-eslint/typescript-eslint#11628))- **eslint-plugin:** \[no-floating-promises] remove excess parentheses in suggestions ([#&#8203;11487](typescript-eslint/typescript-eslint#11487))##### ❤️ Thank You- fisker Cheung [@&#8203;fisker](https://github.com/fisker)- Josh Goldberg ✨- Kirk Waiblinger [@&#8203;kirkwaiblinger](https://github.com/kirkwaiblinger)- Mark de Dios [@&#8203;peanutenthusiast](https://github.com/peanutenthusiast)- Richard Torres [@&#8203;richardtorres314](https://github.com/richardtorres314)- Victor Genaev [@&#8203;mainframev](https://github.com/mainframev)You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.45.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8450-2025-09-29)[Compare Source](typescript-eslint/typescript-eslint@v8.44.1...v8.45.0)##### 🚀 Features- **eslint-plugin:** expose rule name via RuleModule interface ([#&#8203;11616](typescript-eslint/typescript-eslint#11616))##### 🩹 Fixes- **eslint-plugin:** \[prefer-nullish-coalescing] ignoreBooleanCoercion should not apply to top-level ternary expressions ([#&#8203;11614](typescript-eslint/typescript-eslint#11614))- **eslint-plugin:** \[no-base-to-string] check if superclass is ignored ([#&#8203;11617](typescript-eslint/typescript-eslint#11617))##### ❤️ Thank You- mdm317- Moses Odutusin [@&#8203;thebolarin](https://github.com/thebolarin)- Yukihiro Hasegawa [@&#8203;y-hsgw](https://github.com/y-hsgw)You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.44.1`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8441-2025-09-22)[Compare Source](typescript-eslint/typescript-eslint@v8.44.0...v8.44.1)##### 🩹 Fixes- **eslint-plugin:** \[await-thenable] should not report passing values to promise aggregators which may be a promise in an array literal ([#&#8203;11611](typescript-eslint/typescript-eslint#11611))- **eslint-plugin:** \[no-unsafe-enum-comparison] support unions of literals ([#&#8203;11599](typescript-eslint/typescript-eslint#11599))- **eslint-plugin:** \[no-base-to-string] make ignoredTypeNames match type names without generics ([#&#8203;11597](typescript-eslint/typescript-eslint#11597))##### ❤️ Thank You- Kirk Waiblinger [@&#8203;kirkwaiblinger](https://github.com/kirkwaiblinger)- mdm317- Ronen AmielYou can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.44.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8440-2025-09-15)[Compare Source](typescript-eslint/typescript-eslint@v8.43.0...v8.44.0)##### 🚀 Features- **eslint-plugin:** \[await-thenable] report invalid (non-promise) values passed to promise aggregator methods ([#&#8203;11267](typescript-eslint/typescript-eslint#11267))##### 🩹 Fixes- **eslint-plugin:** \[no-unnecessary-type-conversion] ignore enum members ([#&#8203;11490](typescript-eslint/typescript-eslint#11490))##### ❤️ Thank You- Moses Odutusin [@&#8203;thebolarin](https://github.com/thebolarin)- Ronen AmielYou can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.43.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8430-2025-09-08)[Compare Source](typescript-eslint/typescript-eslint@v8.42.0...v8.43.0)##### 🚀 Features- **typescript-estree:** disallow empty type parameter/argument lists ([#&#8203;11563](typescript-eslint/typescript-eslint#11563))##### 🩹 Fixes- **eslint-plugin:** \[prefer-return-this-type] don't report an error when returning a union type that includes a classType ([#&#8203;11432](typescript-eslint/typescript-eslint#11432))- **eslint-plugin:** \[no-deprecated] should report deprecated exports and reexports ([#&#8203;11359](typescript-eslint/typescript-eslint#11359))- **eslint-plugin:** \[no-floating-promises] allowForKnownSafeCalls now supports function names ([#&#8203;11423](typescript-eslint/typescript-eslint#11423), [#&#8203;11430](typescript-eslint/typescript-eslint#11430))- **eslint-plugin:** \[consistent-type-exports] fix declaration shadowing ([#&#8203;11457](typescript-eslint/typescript-eslint#11457))- **eslint-plugin:** \[no-unnecessary-type-conversion] only report \~\~ on integer literal types ([#&#8203;11517](typescript-eslint/typescript-eslint#11517))- **scope-manager:** exclude Program from DefinitionBase node types ([#&#8203;11469](typescript-eslint/typescript-eslint#11469))- **eslint-plugin:** \[no-non-null-assertion] do not suggest optional chain on LHS of assignment ([#&#8203;11489](typescript-eslint/typescript-eslint#11489))- **type-utils:** add union type support to TypeOrValueSpecifier ([#&#8203;11526](typescript-eslint/typescript-eslint#11526))##### ❤️ Thank You- Dima [@&#8203;dbarabashh](https://github.com/dbarabashh)- Kirk Waiblinger [@&#8203;kirkwaiblinger](https://github.com/kirkwaiblinger)- mdm317- tao- Victor Genaev [@&#8203;mainframev](https://github.com/mainframev)- Yukihiro Hasegawa [@&#8203;y-hsgw](https://github.com/y-hsgw)- 민감자(Minji Kim) [@&#8203;mouse0429](https://github.com/mouse0429)- 송재욱You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.42.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8420-2025-09-02)[Compare Source](typescript-eslint/typescript-eslint@v8.41.0...v8.42.0)##### 🩹 Fixes- **deps:** update eslint monorepo to v9.33.0 ([#&#8203;11482](typescript-eslint/typescript-eslint#11482))You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our 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strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.</details><details><summary>typescript-eslint/typescript-eslint (@&#8203;typescript-eslint/parser)</summary>### [`v8.47.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8470-2025-11-17)[Compare Source](typescript-eslint/typescript-eslint@v8.46.4...v8.47.0)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](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.46.4`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8464-2025-11-10)[Compare Source](typescript-eslint/typescript-eslint@v8.46.3...v8.46.4)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](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.46.3`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8463-2025-11-03)[Compare Source](typescript-eslint/typescript-eslint@v8.46.2...v8.46.3)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](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.46.2`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8462-2025-10-20)[Compare Source](typescript-eslint/typescript-eslint@v8.46.1...v8.46.2)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 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[releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.45.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8450-2025-09-29)[Compare Source](typescript-eslint/typescript-eslint@v8.44.1...v8.45.0)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](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.44.1`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8441-2025-09-22)[Compare Source](typescript-eslint/typescript-eslint@v8.44.0...v8.44.1)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](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.44.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8440-2025-09-15)[Compare Source](typescript-eslint/typescript-eslint@v8.43.0...v8.44.0)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](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.43.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8430-2025-09-08)[Compare Source](typescript-eslint/typescript-eslint@v8.42.0...v8.43.0)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](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.42.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8420-2025-09-02)[Compare Source](typescript-eslint/typescript-eslint@v8.41.0...v8.42.0)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](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.### [`v8.41.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8410-2025-08-25)[Compare Source](typescript-eslint/typescript-eslint@v8.40.0...v8.41.0)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](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.### [`v8.40.0`](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/parser/CHANGELOG.md#8400-2025-08-18)[Compare Source](typescript-eslint/typescript-eslint@v8.39.1...v8.40.0)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](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.</details>---### Configuration📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.🔕 **Ignore**: Close this PR and you won't be reminded about these updates again.--- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box---This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0MS44MS4wIiwidXBkYXRlZEluVmVyIjoiNDIuMTAuNSIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOltdfQ==-->Reviewed-on:https://git.in.csmpro.ru/csmpro/csm-mapban/pulls/20Co-authored-by: Renovate Bot <renovate@csmpro.ru>Co-committed-by: Renovate Bot <renovate@csmpro.ru>
renovatebot added a commit to andrei-picus-tink/auto-renovate that referenced this pull requestNov 19, 2025
| datasource | package                          | from   | to     || ---------- | -------------------------------- | ------ | ------ || npm        | @typescript-eslint/eslint-plugin | 8.46.1 | 8.47.0 || npm        | @typescript-eslint/parser        | 8.46.1 | 8.47.0 |## [v8.47.0](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8470-2025-11-17)##### 🚀 Features- **eslint-plugin:** \[no-unused-private-class-members] new extension rule ([#10913](typescript-eslint/typescript-eslint#10913))##### ❤️ Thank You- Brad Zacher [@bradzacher](https://github.com/bradzacher)You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.## [v8.46.4](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8464-2025-11-10)##### 🩹 Fixes- **parser:** error when both `projectService` and `project` are set ([#11333](typescript-eslint/typescript-eslint#11333))- **eslint-plugin:** handle override modifier in promise-function-async fixer ([#11730](typescript-eslint/typescript-eslint#11730))- **eslint-plugin:** \[no-deprecated] fix double-report on computed literal identifiers ([#11006](typescript-eslint/typescript-eslint#11006), [#10958](typescript-eslint/typescript-eslint#10958))##### ❤️ Thank You- Evgeny Stepanovych [@undsoft](https://github.com/undsoft)- Kentaro Suzuki [@sushichan044](https://github.com/sushichan044)- Maria Solano [@MariaSolOs](https://github.com/MariaSolOs)You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.## [v8.46.3](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8463-2025-11-03)##### 🩹 Fixes- **eslint-plugin:** \[no-duplicate-enum-values] support signed numbers ([#11722](typescript-eslint/typescript-eslint#11722), [#11723](typescript-eslint/typescript-eslint#11723))- **eslint-plugin:** \[no-misused-promises] expand union type to retrieve target property ([#11706](typescript-eslint/typescript-eslint#11706))##### ❤️ Thank You- Evgeny Stepanovych [@undsoft](https://github.com/undsoft)- taoYou can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.## [v8.46.2](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8462-2025-10-20)##### 🩹 Fixes- **eslint-plugin:** \[prefer-optional-chain] skip optional chaining when it could change the result ([#11702](typescript-eslint/typescript-eslint#11702))##### ❤️ Thank You- mdm317You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.
renovatebot added a commit to andrei-picus-tink/auto-renovate that referenced this pull requestNov 19, 2025
| datasource | package                          | from   | to     || ---------- | -------------------------------- | ------ | ------ || npm        | @typescript-eslint/eslint-plugin | 8.46.1 | 8.47.0 || npm        | @typescript-eslint/parser        | 8.46.1 | 8.47.0 |## [v8.47.0](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8470-2025-11-17)##### 🚀 Features- **eslint-plugin:** \[no-unused-private-class-members] new extension rule ([#10913](typescript-eslint/typescript-eslint#10913))##### ❤️ Thank You- Brad Zacher [@bradzacher](https://github.com/bradzacher)You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.## [v8.46.4](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8464-2025-11-10)##### 🩹 Fixes- **parser:** error when both `projectService` and `project` are set ([#11333](typescript-eslint/typescript-eslint#11333))- **eslint-plugin:** handle override modifier in promise-function-async fixer ([#11730](typescript-eslint/typescript-eslint#11730))- **eslint-plugin:** \[no-deprecated] fix double-report on computed literal identifiers ([#11006](typescript-eslint/typescript-eslint#11006), [#10958](typescript-eslint/typescript-eslint#10958))##### ❤️ Thank You- Evgeny Stepanovych [@undsoft](https://github.com/undsoft)- Kentaro Suzuki [@sushichan044](https://github.com/sushichan044)- Maria Solano [@MariaSolOs](https://github.com/MariaSolOs)You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.## [v8.46.3](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8463-2025-11-03)##### 🩹 Fixes- **eslint-plugin:** \[no-duplicate-enum-values] support signed numbers ([#11722](typescript-eslint/typescript-eslint#11722), [#11723](typescript-eslint/typescript-eslint#11723))- **eslint-plugin:** \[no-misused-promises] expand union type to retrieve target property ([#11706](typescript-eslint/typescript-eslint#11706))##### ❤️ Thank You- Evgeny Stepanovych [@undsoft](https://github.com/undsoft)- taoYou can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.## [v8.46.2](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8462-2025-10-20)##### 🩹 Fixes- **eslint-plugin:** \[prefer-optional-chain] skip optional chaining when it could change the result ([#11702](typescript-eslint/typescript-eslint#11702))##### ❤️ Thank You- mdm317You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.
renovatebot added a commit to andrei-picus-tink/auto-renovate that referenced this pull requestNov 20, 2025
| datasource | package                          | from   | to     || ---------- | -------------------------------- | ------ | ------ || npm        | @typescript-eslint/eslint-plugin | 8.46.1 | 8.47.0 || npm        | @typescript-eslint/parser        | 8.46.1 | 8.47.0 |## [v8.47.0](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8470-2025-11-17)##### 🚀 Features- **eslint-plugin:** \[no-unused-private-class-members] new extension rule ([#10913](typescript-eslint/typescript-eslint#10913))##### ❤️ Thank You- Brad Zacher [@bradzacher](https://github.com/bradzacher)You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.## [v8.46.4](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8464-2025-11-10)##### 🩹 Fixes- **parser:** error when both `projectService` and `project` are set ([#11333](typescript-eslint/typescript-eslint#11333))- **eslint-plugin:** handle override modifier in promise-function-async fixer ([#11730](typescript-eslint/typescript-eslint#11730))- **eslint-plugin:** \[no-deprecated] fix double-report on computed literal identifiers ([#11006](typescript-eslint/typescript-eslint#11006), [#10958](typescript-eslint/typescript-eslint#10958))##### ❤️ Thank You- Evgeny Stepanovych [@undsoft](https://github.com/undsoft)- Kentaro Suzuki [@sushichan044](https://github.com/sushichan044)- Maria Solano [@MariaSolOs](https://github.com/MariaSolOs)You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.## [v8.46.3](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8463-2025-11-03)##### 🩹 Fixes- **eslint-plugin:** \[no-duplicate-enum-values] support signed numbers ([#11722](typescript-eslint/typescript-eslint#11722), [#11723](typescript-eslint/typescript-eslint#11723))- **eslint-plugin:** \[no-misused-promises] expand union type to retrieve target property ([#11706](typescript-eslint/typescript-eslint#11706))##### ❤️ Thank You- Evgeny Stepanovych [@undsoft](https://github.com/undsoft)- taoYou can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.## [v8.46.2](https://github.com/typescript-eslint/typescript-eslint/blob/HEAD/packages/eslint-plugin/CHANGELOG.md#8462-2025-10-20)##### 🩹 Fixes- **eslint-plugin:** \[prefer-optional-chain] skip optional chaining when it could change the result ([#11702](typescript-eslint/typescript-eslint#11702))##### ❤️ Thank You- mdm317You can read about our [versioning strategy](https://typescript-eslint.io/users/versioning) and [releases](https://typescript-eslint.io/users/releases) on our website.
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@bradzacherbradzacherbradzacher approved these changes

@kirkwaiblingerkirkwaiblingerkirkwaiblinger approved these changes

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Bug: @typescript-eslint/prefer-optional-chain flags situations where an optional chain would change behavior

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