Add `selector-no-unmatchable` by jeddy3 · Pull Request #9451 · stylelint/stylelint

jeddy3 · 2026-08-19T15:48:26Z

Which issue, if any, is this issue related to?

Closes #9445
Closes #9400
Closes #9183
Closes #8566
Closes #5575

Is there anything in the PR that needs further explanation?

I've tried to use spec-based language throughout to keep things grounded, since the rule covers several cases.

In a change from the blueprint, I've added the resolved selector to the problem message, as we do in most of the other rules that resolve selectors, such as:

stylelint/lib/rules/selector-max-specificity/index.mjs

Lines 14 to 20 in e35d6a0

    
           const messages = ruleMessages(ruleName, { 
        
           	expected: (selector, max, resolvedSelector) => { 
        
           		selector = `"${selector}"${resolvedSelector ? ` ("${resolvedSelector}")` : ''}`; 
        
           		return `Too high specificity in ${selector}, maximum "${max}"`; 
        
           	}, 
        
           });

For example, given:

label { &:enabled {} }

The problem message is:

Unmatchable selector "&:enabled" ("label:enabled"), ":enabled" never matches "label" elements

And the range covers &:enabled.

I've based the rule on selector-no-qualifying-type, and moved 2 of that rule's local utils into utils:

isSelectorContainingPseudoClass
getCompoundSelectors

We can add the rule to the recommended config, along with selector-no-invalid, for Stylelint 18.

changeset-bot · 2026-08-19T15:48:30Z

🦋 Changeset detected

Latest commit: 33eeaaf

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
stylelint	Minor

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github-actions · 2026-08-19T15:50:28Z

This PR is packaged and the instant preview is available (33eeaaf). View the demo website.

Install it locally:

npm i -D https://pkg.pr.new/stylelint@33eeaaf

ybiquitous

Thanks. Overall LGTM, but I left a few minor comments.

Co-authored-by: Masafumi Koba <[email protected]>

jeddy3 · 2026-08-21T06:10:09Z

@ybiquitous Thank you for the thorough review!

I've committed your commitable suggestions and pushed commits for the others.

ybiquitous

Thank you. LGTM! 😄

You don't need to mind my last minor comment. It doesn't block the merge.

Co-authored-by: Masafumi Koba <[email protected]>

romainmenke

Looks great! Thank you 🙇
I've left one suggestion for a bit of extra unit test coverage.

romainmenke

Looks great!
Thank you for those extra tests 🙇

@jeddy3

@jeddy3

@jeddy3

This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [eslint](https://eslint.org) ([source](https://github.com/eslint/eslint)) | devDependencies | patch | [`9.39.4` -> `9.39.5`](https://renovatebot.com/diffs/npm/eslint/9.39.4/9.39.5) | | [prettier](https://prettier.io) ([source](https://github.com/prettier/prettier)) | devDependencies | minor | [`3.8.3` -> `3.9.10`](https://renovatebot.com/diffs/npm/prettier/3.8.3/3.9.10) | | [stylelint](https://stylelint.io) ([source](https://github.com/stylelint/stylelint)) | devDependencies | minor | [`17.12.0` -> `17.16.0`](https://renovatebot.com/diffs/npm/stylelint/17.12.0/17.16.0) | --- ### Release Notes <details> <summary>eslint/eslint (eslint)</summary> ### [`v9.39.5`](https://github.com/eslint/eslint/releases/tag/v9.39.5) [Compare Source](eslint/eslint@v9.39.4...v9.39.5) #### Bug Fixes - [`253be16`](eslint/eslint@253be16) fix: handle unavailable require cache (backport of [#20812](eslint/eslint#20812) to v9.x) ([#21065](eslint/eslint#21065)) (Eric) #### Documentation - [`74930ed`](eslint/eslint@74930ed) docs: switch build to Node.js 24 ([#20894](eslint/eslint#20894)) (Milos Djermanovic) - [`eaec8bb`](eslint/eslint@eaec8bb) docs: Add ESLint v9.x EOL notice ([#20828](eslint/eslint#20828)) (Milos Djermanovic) #### Chores - [`458205f`](eslint/eslint@458205f) chore: update `@eslint/eslintrc` and `@eslint/js` for v9.39.5 ([#21077](eslint/eslint#21077)) (Francesco Trotta) - [`202117b`](eslint/eslint@202117b) chore: package.json update for [@eslint/js](https://github.com/eslint/js) release (Jenkins) - [`d9eb6ed`](eslint/eslint@d9eb6ed) test: disable warning for `vm.constants.USE_MAIN_CONTEXT_DEFAULT_LOADER` ([#21074](eslint/eslint#21074)) (Francesco Trotta) - [`7b431a7`](eslint/eslint@7b431a7) chore: override `re2` dependency for `@metascraper/helpers` ([#21068](eslint/eslint#21068)) (Milos Djermanovic) - [`daf7791`](eslint/eslint@daf7791) chore: pin [email protected] ([#20895](eslint/eslint#20895)) (Milos Djermanovic) - [`daee8ba`](eslint/eslint@daee8ba) ci: use pnpm in `eslint-flat-config-utils` type integration test ([#20829](eslint/eslint#20829)) (Milos Djermanovic) - [`116d4be`](eslint/eslint@116d4be) ci: unpin Node.js 25.x in CI ([#20619](eslint/eslint#20619)) (Copilot) </details> <details> <summary>prettier/prettier (prettier)</summary> ### [`v3.9.10`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#3910) [Compare Source](prettier/prettier@3.9.9...3.9.10) [diff](prettier/prettier@3.9.9...3.9.10) ##### Markdown: Update `micromark-extension-gfm-table` to fix the table parse issue on performance ([#20266](prettier/prettier#20266) by [@fisker](https://github.com/fisker)) See micromark/micromark-extension-gfm-table@4f43ead for details. ### [`v3.9.9`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#399) [Compare Source](prettier/prettier@3.9.8...3.9.9) [diff](prettier/prettier@3.9.8...3.9.9) ##### Markdown: Fix text with `$` been incorrectly parsed as math syntax ([#20140](prettier/prettier#20140) by [@fisker](https://github.com/fisker))  ```md  **Uses $FOO** from `a.sh` and `b.sh`, plus `$BAR` from `c.sh`, before anything else runs here.  **Uses $FOO** from `a.sh` and `b.sh`, plus `$BAR`from`c.sh`, before anything else runs here.  **Uses $FOO** from `a.sh` and `b.sh`, plus `$BAR` from `c.sh`, before anything else runs here. ``` ### [`v3.9.8`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#398) [Compare Source](prettier/prettier@3.9.7...3.9.8) [diff](prettier/prettier@3.9.7...3.9.8) ##### Markdown: Don't let Liquid objects interrupt paragraphs ([#20087](prettier/prettier#20087) by [@seiyab](https://github.com/seiyab))  ```markdown  If `module` is not a [`WebAssembly.Module`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module) object instance, a {{jsxref("TypeError")}} is thrown.  If `module` is not a [`WebAssembly.Module`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module) object instance, a {{jsxref("TypeError")}} is thrown.  If `module` is not a [`WebAssembly.Module`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module) object instance, a {{jsxref("TypeError")}} is thrown. ``` ### [`v3.9.7`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#397) [Compare Source](prettier/prettier@3.9.6...3.9.7) [diff](prettier/prettier@3.9.6...3.9.7) ##### Markdown: Prevent indentation drift in list-item code blocks ([#19647](prettier/prettier#19647), [#19990](prettier/prettier#19990) by [@Austin1serb](https://github.com/Austin1serb), [@giaBaoJS](https://github.com/giaBaoJS))  ```markdown  - [x] short first line. second paragraph at six spaces that wraps onto another line here.  - [x] short first line. second paragraph at six spaces that wraps onto another line here.  - [x] short first line. second paragraph at six spaces that wraps onto another line here. ``` ##### JavaScript: Fix embedded template literal idempotency ([#19725](prettier/prettier#19725) by [@fisker](https://github.com/fisker))  ```jsx // Input const foo = html` <div>${getText({ value, })}</div> `; // Prettier 3.9.6 (first format) const foo = html` <div> ${getText({ value, })} </div> `; // Prettier 3.9.6 (second format) const foo = html` <div> ${getText({ value, })} </div> `; // Prettier 3.9.7 const foo = html` <div> ${getText({ value, })} </div> `; ``` ##### Markdown: Preserve Liquid blocks after Markdown tables ([#19730](prettier/prettier#19730) by [@wanxiankai](https://github.com/wanxiankai), [@seiyab](https://github.com/seiyab))  ```markdown  | Argument | Type | | -------- | ---- | {% set default_params = { "model": ["str"], } %}  | Argument | Type | | ------------------------- | ---- | | {% set default_params = { | "model": ["str"], } %}  | Argument | Type | | -------- | ---- | {% set default_params = { "model": ["str"], } %} ``` ##### Markdown: Preserve single tildes in Markdown ([#19739](prettier/prettier#19739) by [@lazerg](https://github.com/lazerg)) Since 3.9.0, single-tilde spans like `H~2~O` were rewritten to double tildes, turning subscript syntax into strike-through. 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Enable images: <p align="center"> <img alt="example"> </p>  1. Enable images: <p align="center"> <img alt="example"> </p>  1. Enable images: <p align="center"> <img alt="example"> </p> ``` ##### Angular: Support `@boundary` error boundaries ([#20014](prettier/prettier#20014) by [@Yahiro025](https://github.com/Yahiro025))  ```html  @boundary { <complex-chart [data]="data"/> } @error (let err) { <p>{{err.message}}</p> }  SyntaxError: Unexpected character "EOF" (Do you have an unescaped "{" in your template? Use "{{ '{' }}") to escape it.) (6:1)  @boundary { <complex-chart [data]="data" /> } @error (let err) { <p>{{ err.message }}</p> } ``` ### [`v3.9.6`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#396) [Compare Source](prettier/prettier@3.9.5...3.9.6) [diff](prettier/prettier@3.9.5...3.9.6) ##### TypeScript: Preserve quotes for methods named `new` ([#19621](prettier/prettier#19621) by [@kovsu](https://github.com/kovsu))  ```tsx // Input interface Container { "new"(id: string): number; } // Prettier 3.9.5 interface Container { new(id: string): number; } // Prettier 3.9.6 interface Container { "new"(id: string): number; } ``` ##### TypeScript: Support `import defer` ([#19624](prettier/prettier#19624), [#19675](prettier/prettier#19675) by [@fisker](https://github.com/fisker))  ```tsx // Input import defer * as foo from "foo"; // Prettier 3.9.5 import * as foo from "foo"; // Prettier 3.9.6 import defer * as foo from "foo"; ``` ##### JavaScript: Added a new official plugin `@prettier/plugin-yuku` ([#19628](prettier/prettier#19628), [#19629](prettier/prettier#19629) by [@fisker](https://github.com/fisker)) `@prettier/plugin-yuku` is powered by [Yuku](https://yuku.fyi/) (A high-performance JavaScript/TypeScript compiler toolchain written in Zig). This plugin includes two new parsers: `yuku` (JavaScript syntax) and `yuku-ts` (TypeScript syntax). **To use this plugin:** 1. Install the plugin: ```bash yarn add --dev prettier @prettier/plugin-yuku ``` 2. Add it to your `.prettierrc`: ```yaml plugins: - "@prettier/plugin-yuku" ``` Due to package size limitations, this plugin is not bundled with the main prettier package and must be installed separately. For more information, check [the package homepage](https://github.com/prettier/prettier/tree/main/packages/plugin-yuku). Big thanks to [@arshad-yaseen](https://github.com/arshad-yaseen) for his excellent work. ### [`v3.9.5`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#395) [Compare Source](prettier/prettier@3.9.4...3.9.5) [diff](prettier/prettier@3.9.4...3.9.5) ##### Markdown: Cap ordered list mark at 999,999,999 ([#19351](prettier/prettier#19351) by [@tats-u](https://github.com/tats-u)) CommonMark parsers only support ordered list item numbers up to 999,999,999. With this change, Prettier now caps the ordered list item number at 999,999,999 to ensure that the output is correctly parsed as an ordered list by CommonMark parsers. Numbers larger than 999,999,999 are not parsed as list item numbers and are left unchanged in the output:  ```markdown  999999998. text 999999998. text 999999998. text 999999998. text 1234567890123456789012) text  999999998. text 999999999. text 1000000000. text 1000000001. text 1234567890123456789012) text  999999998. text 999999999. text 999999999. text 999999999. text 1234567890123456789012) text ``` ##### Markdown: Avoid corrupting empty link with title ([#19487](prettier/prettier#19487) by [@andersk](https://github.com/andersk)) Do not remove `<>` from an inline link or image with an empty URL and a title, as this removal would change its interpretation.  ```md  [link](<> "title")  [link]( "title")  [link](<> "title") ``` ##### Less: Remove extra spaces after `[` in map lookups ([#19503](prettier/prettier#19503) by [@kovsu](https://github.com/kovsu))  ```less // Input .foo { color: #theme[ primary]; color: #theme[@name]; color: #theme[@@name]; } // Prettier 3.9.4 .foo { color: #theme[ primary]; color: #theme[ @name]; color: #theme[ @@name]; } // Prettier 3.9.5 .foo { color: #theme[primary]; color: #theme[@name]; color: #theme[@@name]; } ``` ##### CSS: Prevent addition space in `type()` with `+` ([#19516](prettier/prettier#19516) by [@bigandy](https://github.com/bigandy)) This fixes the addition space before `+` in CSS `type()` declaration. For example `type(<number>+)` was being converted into `type(<number> +)` which is invalid CSS and does not work.  ```css /* Input */ div { border-radius: attr(br type(<length>+)); } /* Prettier 3.9.4 */ div { border-radius: attr(br type(<length> +)); } /* Prettier 3.9.5 */ div { border-radius: attr(br type(<length>+)); } ``` ##### Less: Remove spaces between merge markers and colons ([#19517](prettier/prettier#19517) by [@kovsu](https://github.com/kovsu))  ```less // Input a { box-shadow + : 0 0 1px #000; } // Prettier 3.9.4 a { box-shadow+ : 0 0 1px #000; } // Prettier 3.9.5 a { box-shadow+: 0 0 1px #000; } ``` ##### Markdown: Preserve wiki links with aliases ([#19527](prettier/prettier#19527) by [@kovsu](https://github.com/kovsu))  ```markdown  [[Foo:Bar]]  [[Foo]]  [[Foo:Bar]] ``` ##### TypeScript: Fix comments being dropped on shorthand `type` import/export specifiers ([#19565](prettier/prettier#19565) by [@kirkwaiblinger](https://github.com/kirkwaiblinger))  ```tsx // Input export { type /* comment */ T } from "foo"; import { type /* comment */ T } from "foo"; // Prettier 3.9.4 Error: Comment "comment" was not printed. Please report this error! // Prettier 3.9.5 export { type /* comment */ T } from "foo"; import { type /* comment */ T } from "foo"; ``` ##### Miscellaneous: Preserving comments' `placement` property ([#19567](prettier/prettier#19567) by [@Janther](https://github.com/Janther)) [email protected] deleted an undocumented property on comments, which was already used by plugins, `comment.placement` is now available again after comment attach. ##### Flow: Stop enforcing empty module declaration to break ([#19568](prettier/prettier#19568) by [@fisker](https://github.com/fisker))  ```flow // Input declare module "foo" {} // Prettier 3.9.4 declare module "foo" { } // Prettier 3.9.5 declare module "foo" {} ``` ##### Angular: Support expression for exhaustive typechecking ([#19571](prettier/prettier#19571) by [@fisker](https://github.com/fisker))  ```html  @switch (state.mode) { @default never(state); }  @switch (state.mode) { @default never; }  @switch (state.mode) { @default never(state); } ``` ##### TypeScript: Ignore comments inside mapped type when checking type parameter comments ([#19572](prettier/prettier#19572) by [@fisker](https://github.com/fisker))  ```tsx // Input foo<{ // comment [key in keyof Foo]: number }>(); // Prettier 3.9.4 foo< { // comment [key in keyof Foo]: number; } >(); // Prettier 3.9.5 foo<{ // comment [key in keyof Foo]: number; }>(); ``` ##### Less: Fix adjacent block comments being corrupted ([#19574](prettier/prettier#19574) by [@kovsu](https://github.com/kovsu))  ```less // Input /* a *//* b */ /* a */* { color: red; } // Prettier 3.9.4 /* a */ /* b */ /* a * { color: red; } // Prettier 3.9.5 /* a */ /* b */ /* a */ * { color: red; } ``` ##### JavaScript: Handle dangling comments in `SwitchStatement` ([#19581](prettier/prettier#19581) by [@fisker](https://github.com/fisker))  ```jsx // Input switch (foo) { // comment } // Prettier 3.9.4 switch ( foo // comment ) { } // Prettier 3.9.5 switch (foo) { // comment } ``` ##### TypeScript: Remove space in comment-only object type ([#19583](prettier/prettier#19583) by [@fisker](https://github.com/fisker))  ```tsx // Input var foo = { /* comment */ }; type Foo = { /* comment */ }; // Prettier 3.9.4 var foo = {/* comment */}; type Foo = { /* comment */ }; // Prettier 3.9.5 var foo = {/* comment */}; type Foo = {/* comment */}; ``` ### [`v3.9.4`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#394) [Compare Source](prettier/prettier@3.9.3...3.9.4) [diff](prettier/prettier@3.9.3...3.9.4) ##### Angular: Format `@content(name)` -> `@content (name)` to align with other block syntax ([#19499](prettier/prettier#19499) by [@fisker](https://github.com/fisker))  ```html  <FancyButton [label]="title"> @content (icon) { <span>Icon!</span> } @content (description) { <span>Description text</span> } <span>Other children</span> </FancyButton>  <FancyButton [label]="title"> @content(icon) { <span>Icon!</span> } @content(description) { <span>Description text</span> } <span>Other children</span> </FancyButton>  <FancyButton [label]="title"> @content (icon) { <span>Icon!</span> } @content (description) { <span>Description text</span> } <span>Other children</span> </FancyButton> ``` ### [`v3.9.3`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#393) [Compare Source](prettier/prettier@3.9.2...3.9.3) [diff](prettier/prettier@3.9.1...3.9.3) ##### Markdown: Fix unexpected removal of characters in liquid syntax ([#19489](prettier/prettier#19489) by [@seiyab](https://github.com/seiyab))  ```md // Input  {{ page.title }} text  {{ page.title text  {{ page.title }} text ``` ##### TypeScript: Allow decorators to be used with declare on class fields ([#19492](prettier/prettier#19492) by [@evoactivity](https://github.com/evoactivity)) Extensively used within the Ember ecosystem, decorators with `declare` on class fields will ignore the babel parser error and allow Prettier to format the code without breaking it.  ```ts // Input export default class ProjectStatusComponent extends Component<ProjectStatusSig> { @service declare server: ServerService; } // Prettier 3.9.1 // SyntaxError: Decorators can't be used with a declare field. (2:3) // 1 | export default class ProjectStatusComponent extends Component<ProjectStatusSig> { //> 2 | @service declare server: ServerService; // | ^ // 3 | } // Prettier 3.9.3 export default class ProjectStatusComponent extends Component<ProjectStatusSig> { @service declare server: ServerService; } ``` ### [`v3.9.2`](prettier/prettier@3.9.1...3.9.2) [Compare Source](prettier/prettier@3.9.1...3.9.2) ### [`v3.9.1`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#3910) [Compare Source](prettier/prettier@3.9.0...3.9.1) [diff](prettier/prettier@3.9.9...3.9.10) ##### Markdown: Update `micromark-extension-gfm-table` to fix the table parse issue on performance ([#20266](prettier/prettier#20266) by [@fisker](https://github.com/fisker)) See micromark/micromark-extension-gfm-table@4f43ead for details. ### [`v3.9.0`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#390) [Compare Source](prettier/prettier@3.8.5...3.9.0) [diff](prettier/prettier@3.8.5...3.9.0) 🔗 [Release Notes](https://prettier.io/blog/2026/06/27/3.9.0) ### [`v3.8.5`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#385) [Compare Source](prettier/prettier@3.8.4...3.8.5) [diff](prettier/prettier@3.8.4...3.8.5) ##### Flow: Support `readonly` as a variance annotation ([#19022](prettier/prettier#19022) by [@marcoww6](https://github.com/marcoww6)) Flow now accepts `readonly` as a property variance annotation, equivalent to `+` (covariant/read-only).  ```jsx // Input type T = { readonly foo: string, }; // Prettier 3.8.4 SyntaxError // Prettier 3.8.5 type T = { readonly foo: string, }; ``` ### [`v3.8.4`](https://github.com/prettier/prettier/blob/HEAD/CHANGELOG.md#384) [Compare Source](prettier/prettier@3.8.3...3.8.4) [diff](prettier/prettier@3.8.3...3.8.4) ##### Markdown: Fix blank lines between list items and nested sub-lists being removed in Markdown/MDX ([#17746](prettier/prettier#17746) by [@byplayer](https://github.com/byplayer)) Prettier was removing blank lines between list items and their nested sub-lists, converting loose lists into tight lists and changing their semantic meaning.  ```markdown  - a - b - c - d  - a - b - c - d  - a - b - c - d ``` </details> <details> <summary>stylelint/stylelint (stylelint)</summary> ### [`v17.16.0`](https://github.com/stylelint/stylelint/blob/HEAD/CHANGELOG.md#17160---2026-10-01) [Compare Source](stylelint/stylelint@17.15.0...17.16.0) It fixes 2 bugs in the `layout-mappings` rules. This will likely be the last `17.x` release, as we prepare for `18.0.0`. - Fixed: `property-layout-mappings` and `unit-layout-mappings` false negatives for uppercase property names and units ([#9485](stylelint/stylelint#9485)) ([@giaBaoJS](https://github.com/giaBaoJS)). - Fixed: `value-keyword-layout-mappings` false positives for `caption-side` ([#9483](stylelint/stylelint#9483)) ([@giaBaoJS](https://github.com/giaBaoJS)). ### [`v17.15.0`](https://github.com/stylelint/stylelint/blob/HEAD/CHANGELOG.md#17150---2026-09-04) [Compare Source](stylelint/stylelint@17.14.1...17.15.0) It adds 1 new rule and 2 new rule options, and fixes 4 bugs. - Added: `selector-no-unmatchable` rule ([#9451](stylelint/stylelint#9451)) ([@jeddy3](https://github.com/jeddy3)). - Added: `ignoreFunctions: []` to `color-named` and `color-no-hex` ([#9463](stylelint/stylelint#9463)) ([@jsmitty12](https://github.com/jsmitty12)). - Fixed: `custom-property-no-missing-var-function` false positives for anchor positioning ([#9466](stylelint/stylelint#9466)) ([@giaBaoJS](https://github.com/giaBaoJS)). - Fixed: `declaration-block-no-redundant-longhand-properties` autofix for `font` shorthand ([#9402](stylelint/stylelint#9402)) ([@sarathfrancis90](https://github.com/sarathfrancis90)). - Fixed: `declaration-property-max-values` false positives for interpolated inline expressions ([#9437](stylelint/stylelint#9437)) ([@alexchen-sys](https://github.com/alexchen-sys)). - Fixed: `selector-no-invalid` false negatives for pseudo-elements, combinators and nested `:has()` ([#9452](stylelint/stylelint#9452)) ([@jeddy3](https://github.com/jeddy3)). ### [`v17.14.1`](https://github.com/stylelint/stylelint/blob/HEAD/CHANGELOG.md#17141---2026-07-20) [Compare Source](stylelint/stylelint@17.14.0...17.14.1) It fixes 4 bugs. - Fixed: `quiet` option suppresses `report*` warning reports ([#9387](stylelint/stylelint#9387)) ([@ychampion](https://github.com/ychampion)). - Fixed: reported range of unknown rules ([#9385](stylelint/stylelint#9385)) ([@ybiquitous](https://github.com/ybiquitous)). - Fixed: `declaration-block-no-redundant-longhand-properties` autofix producing invalid `background` shorthand when `background-size` is present ([#9364](stylelint/stylelint#9364)) ([@sarathfrancis90](https://github.com/sarathfrancis90)). - Fixed: `rule-empty-line-before` false positives for shared-line comments with `except: ["after-single-line-comment"]` ([#9394](stylelint/stylelint#9394)) ([@sarathfrancis90](https://github.com/sarathfrancis90)). ### [`v17.14.0`](https://github.com/stylelint/stylelint/blob/HEAD/CHANGELOG.md#17140---2026-06-25) [Compare Source](stylelint/stylelint@17.13.0...17.14.0) It fixes 3 bugs, including a false negative one. - Fixed: performance of getting module paths ([#9354](stylelint/stylelint#9354)) ([@jeddy3](https://github.com/jeddy3)). - Fixed: performance by dynamically importing `TIMING` only on use ([#9356](stylelint/stylelint#9356)) ([@jeddy3](https://github.com/jeddy3)). - Fixed: `function-calc-no-unspaced-operator` false negatives for unspaced `+` and `-` operators following a `*` or `/` operator ([#9357](stylelint/stylelint#9357)) ([@sarathfrancis90](https://github.com/sarathfrancis90)). ### [`v17.13.0`](https://github.com/stylelint/stylelint/blob/HEAD/CHANGELOG.md#17130---2026-06-06) [Compare Source](stylelint/stylelint@17.12.0...17.13.0) It fixes 3 bugs, including a false negative one. - Fixed: `declaration-block-no-duplicate-properties` false negatives for interleaved non-consecutive duplicates with `ignore: ["consecutive-duplicates(-*)"]` ([#9324](stylelint/stylelint#9324)) ([@sarathfrancis90](https://github.com/sarathfrancis90)). - Fixed: `selector-max-type` false positives for nested selectors ([#9319](stylelint/stylelint#9319)) ([@romainmenke](https://github.com/romainmenke)). - Fixed: `selector-type-no-unknown` false positives for `install` ([#9308](stylelint/stylelint#9308)) ([@Mouvedia](https://github.com/Mouvedia)). </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. 👻 **Immortal**: This PR will be recreated if closed unmerged. Get [config help](https://github.com/renovatebot/renovate/discussions) if that's undesired. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).  Reviewed-on: https://git.robbevp.be/robbevp/website-robbevanpetegem/pulls/511

jeddy3 added 2 commits August 19, 2026 14:02

Add selector-no-unmatchable

6e8249a

Refactor :not() handling in getCompoundSelectors

afa2583

Create curvy-carrots-wonder.md

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jeddy3 changed the title ~~Add selector no unmatchable~~ Add selector-no-unmatchable Aug 19, 2026

This was referenced Aug 19, 2026

Fix selector-no-invalid false negatives for pseudo-elements, combinators and nested :has() #9452

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Add selector-no-unmatchable #9445

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Improve coverage

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ybiquitous reviewed Aug 20, 2026

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Comment thread lib/reference/selectors.mjs Resolved

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jeddy3 and others added 9 commits August 20, 2026 20:36

Update lib/rules/selector-no-unmatchable/index.mjs

95a97d1

Co-authored-by: Masafumi Koba <[email protected]>

Update lib/rules/selector-no-unmatchable/index.mjs

7ba0e15

Co-authored-by: Masafumi Koba <[email protected]>

Update lib/rules/selector-no-unmatchable/index.mjs

5630bf6

Co-authored-by: Masafumi Koba <[email protected]>

Update lib/rules/selector-no-unmatchable/README.md

5079a31

Co-authored-by: Masafumi Koba <[email protected]>

Refactor loop

9775859

Update lib/rules/selector-no-unmatchable/index.mjs

293d8f4

Co-authored-by: Masafumi Koba <[email protected]>

Refactor argument forwarding

b4bcade

Refactor reference set

671339f

Fix range

2a70f2d

ybiquitous approved these changes Aug 21, 2026

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Comment thread lib/rules/selector-no-unmatchable/index.mjs Resolved

Update lib/rules/selector-no-unmatchable/index.mjs

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Co-authored-by: Masafumi Koba <[email protected]>

ybiquitous approved these changes Aug 21, 2026

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romainmenke reviewed Aug 24, 2026

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Comment thread lib/utils/getCompoundSelectors.mjs Resolved

Test groupByCompoundSelectors option

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romainmenke approved these changes Aug 25, 2026

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jeddy3 merged commit 3250690 into main Aug 26, 2026
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jeddy3 deleted the add-selector-no-unmatchable branch August 26, 2026 07:34

claude Bot mentioned this pull request Sep 7, 2026

build(deps-dev): update dependency stylelint to v17.15.0 ncaq/www.ncaq.net#451

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fabioluiz1 mentioned this pull request Nov 15, 2026

feat: evaluate stylelint selector-no-unmatchable for .sass and recommended theagenticengineer/stylelint-sass#105

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Add `selector-no-unmatchable` - #9451

Add `selector-no-unmatchable`#9451
jeddy3 merged 15 commits into
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	const messages = ruleMessages(ruleName, {
	expected: (selector, max, resolvedSelector) => {
	selector = `"${selector}"${resolvedSelector ? ` ("${resolvedSelector}")` : ''}`;

	return `Too high specificity in ${selector}, maximum "${max}"`;
	},
	});

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