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#90220d49e24 Thanks @dyc3! - Added the nursery rule noReturnInFinally. This rule disallows return statements in Promise.prototype.finally() callbacks, including inside nested blocks and conditional branches. Returns in nested functions are ignored by the rule.
// Invalid: return in finally callbackPromise.resolve(1).finally(()=>{return2})// Valid: no return in finally callbackPromise.resolve(1).finally(()=>{console.log(2)})
Returning a value from a Promise.prototype.finally() callback does not replace the original promise's fulfillment value, which can be confusing. Returned promises and thenables are awaited, and their rejection rejects the resulting promise.
<!-- Invalid: leftover debugging tag -->
{@debuguser}
The {@debug} tag is a debugging aid and should be removed once you no longer need it, as it should not remain in production code. The rule provides a safe fix that removes the tag.
#117359bd70c7 Thanks @ematipico! - Fixed #8471: source.fixAll.biome ignored formatter.formatWithErrors. It now applies safe fixes without formatting files that have parse errors when the option is disabled.
#11715f05a3c3 Thanks @ematipico! - Fixed #7771: Grit plugins that use sequential no longer panic when Biome processes files.
#11766c2542c6 Thanks @dyc3! - Fixed validation of readonly and accessor modifiers: combining them in either order now reports that they cannot be used together.
#1146122e9966 Thanks @FoundDream! - Fixed #11423: Multiline template interpolations now preserve the indentation of their closing brace when the source indentation is not a multiple of tabWidth.
#11766c2542c6 Thanks @dyc3! - Fixed #11763: TypeScript class members using override accessor, such as override accessor value = 1, now parse correctly. The reversed order, accessor override, now reports that override must precede accessor.
#117777ee3a6c Thanks @ematipico! - Fixed #7573: added the requireExplicitCase option to useExhaustiveSwitchCases. When set to true, the rule reports missing cases even when the switch has a default clause, so you can keep a runtime fallback while checking that every value in the union has its own case. The option defaults to false.
#11751d37f24b Thanks @ematipico! - Fixed #8347: the fix from useConsistentArrowReturn now parenthesizes returned expressions that begin with object literals before removing the arrow function body braces, preventing invalid output for expressions such as object property access.
#117359bd70c7 Thanks @ematipico! - Fixed #7304: the HTML formatter now preserves authored segment breaks between CJK characters, and next to CJK punctuation, instead of replacing them with spaces.
#11749ff992a1 Thanks @ematipico! - Fixed #11747: formatting and checking large parenthesized object expressions no longer exhibit quadratic slowdowns.
#117361dd1fc4 Thanks @dyc3! - Fixed #8177: code actions no longer modify the wrong part of Vue, Svelte, or Astro files when experimental full HTML support is disabled.
#117433835945 Thanks @santichausis! - Fixed #10247: biome check --write/biome lint --write now correctly writes fixes for code inside an HTML attribute expression (for example a Svelte onclick={...} handler, or a mustache expression like {count}), instead of silently reporting the diagnostic as fixable and applying nothing.
For example, running biome lint --write --unsafe for useBlockStatements (an unsafe fix) on this Svelte component used to leave the file unchanged:
<buttononclick={() => { if (open) close(); }}>Close</button>
#117408ea8b4a Thanks @dyc3! - Fixed #11453: useConsistentTestIt now updates imports alongside calls, preserving the original export through an alias. The rule ignores locally declared functions and withholds fixes when the preferred name would conflict with another binding or global reference.
#1135527177ca Thanks @dyc3! - Fixed the HTML formatter incorrectly applying native HTML element formatting to PascalCase component names such as <Ul> and <Body> in Vue, Svelte, and Astro files.
#1135527177ca Thanks @dyc3! - Fixed the HTML formatter incorrectly applying SVG block formatting to unknown elements whose names matched SVG element names.
By default, the rule reports the following declaration because it requires a function expression assigned to a variable:
functiongreet(){return"Hello";}
#11770ddfd622 Thanks @dyc3! - Fixed #8980: suppression comments targeting the entire assist category are now respected, including biome-ignore-all assist when running check.
#117927a4b895 Thanks @dyc3! - Fixed dashed utility base names in the Tailwind parser, including border-bs, font-features, and scrollbar-thumb. Classes such as min-inline-[12rem] now preserve the complete base name and parse the arbitrary value separately.
#117391fc17e3 Thanks @Netail! - The rule useIncludes now also reports lastIndexOf() comparisons and some() calls with a strict-equality callback.
arr.lastIndexOf(x)!==-1arr.some(item=>item===x)
#117359bd70c7 Thanks @ematipico! - Fixed #6888. GritQL plugins can now use contains on import-clause metavariables such as $clause in import $clause from "module" patterns.
#1179017d0ff0 Thanks @ematipico! - Fixed #11786: useAnchorContent now reports anchors without accessible content in HTML, Astro, Vue, and Svelte even when they have an aria-label, aria-labelledby, or title attribute, matching JSX behavior.
#11651a9c4aa0 Thanks @saberoueslati! - Added the new nursery rule noVueUndeclaredDirectives, which reports custom Vue directives that are not declared by a <script setup> binding, the component's directives option, or the rule's globals option. Closes #11478.
<template>
<!-- v-highlight is not declared anywhere -->
<divv-highlight></div>
</template>
Aliased named imports in single-file components are now tracked under their local name, so noUndeclaredVariables recognizes vHighlight in import { highlight as vHighlight } from "./directives".
#1178099c7049 Thanks @ematipico! - Fixed false positives in useExhaustiveSwitchCases when numeric cases use different spellings of the same value. For example, case 0x1 now covers the numeric literal type 1.
#117172107dae Thanks @ternaus! - Fixed #11716: the noUnknownAttribute rule now accepts fullscreen event handlers, the credentialless iframe property, and the SVG maskType property when the React dependency range allows React 19.3 or later. The credentialless and maskType properties are restricted to <iframe> and <mask> elements, respectively.
#11715f05a3c3 Thanks @ematipico! - Fixed #5447, so the GitHub reporter now associates annotations with the correct files when Biome runs from a nested directory.
#11720c7c4e2b Thanks @ematipico! - Fixed #7816: useHookAtTopLevel no longer reports methods named like hooks when called on another function's result, such as Reactotron.configure(...).useReactNative(...).
#1135527177ca Thanks @dyc3! - Removed special HTML formatter handling for the obsolete <listing> element.
#117311534885 Thanks @ematipico! - Fixed an issue where Grit plugin code fixes weren't available as editor code actions.
#11726dea163f Thanks @dyc3! - Fixed #11722: the JavaScript formatter inserts a newline before the closing angle bracket when a leading comment forces type arguments onto multiple lines.
type Foo = Record<
// comment
string,
- number>;+ number+>;
#975802ea438 Thanks @Netail! - Added the nursery rule noJsonUnsafeValues, which disallows JSON values that are unsafe to use between different tools or languages.
Invalid:
[2e308,// Number evaluating to Infinity-2e308,// Number evaluating to -Infinity"\ud83d",// String with lone surrogate1e-400,// Unsafe zero (too small, will evaluate to 0)9007199254740992,// Unsafe integer (outside safe integer range)2.2250738585072009e-308,// Subnormal number]
#1179017d0ff0 Thanks @ematipico! - Fixed #8574: the JavaScript formatter sometimes added extra parentheses and moved comments when formatting multiline expressions after operators such as !. Comments now stay beside the values they describe, without an extra pair of parentheses.
!(
- (- cond1 || // force this to be multi line- cond3- ) // comment+ cond1 || // force this to be multi line+ cond3 // comment
);
#11715f05a3c3 Thanks @ematipico! - Fixed #7711: biome lint --suppress no longer fails with conflicting rule fixes when multiple diagnostics target a declaration preceded by a multiline comment.
#117000e9fe53 Thanks @dyc3! - Added the nursery rule noObsoleteTags, which reports obsolete HTML elements in HTML and JSX, such as <font color="red">Text</font>.
#117359bd70c7 Thanks @ematipico! - Fixed #7363: Biome GritQL plugins now match TypeScript interface snippets such as interface $name { $body }.
#11729f047985 Thanks @m1handr! - Added support for suite() as an alias of describe() across test analysis rules and formatter. Rules now recognize suite, fsuite, xsuite, and test.suite blocks. The formatter recognises them as test declarations.
#117784b7aa1f Thanks @ematipico! - Fixed #7727: GritQL snippets such as import $what from $where now match namespace imports, including type-only imports. Explicit import type $what from $where patterns also match type-only named and namespace imports.
#11706e19512a Thanks @dyc3! - Fixed #11704: files re-included by negation patterns in a nested .gitignore are processed when vcs.useIgnoreFile is enabled, even when the ignore file contains *.
#1171876a302a Thanks @dyc3! - Fixed #8573: own-line comments before binary operators stay above the operator when javascript.formatter.operatorLinebreak is "before".
#1137907a0073 Thanks @Netail! - Added the nursery rule useLayeredStyles, which enforces that style rules are defined within a cascade layer and import rules to import its styles into a cascade layer.
#11667e997900 Thanks @devtechedge! - Added the nursery rule useBetterDomTraversing, which prefers .firstChild, .firstElementChild, .closest(), and merged .querySelector() calls over positional DOM traversal.
#11657e322040 Thanks @ematipico! - Fixed #7495: noUselessConstructor now ignores TypeScript constructors that forward at least one argument to super, preserving constructors that narrow the subclass's accepted parameter types. The exemption also applies when the parent and child signatures are identical; JavaScript and zero-argument forwarding behavior are unchanged.
#1163100dbd3a Thanks @ematipico! - Reduced unnecessary type inference when type-aware lint rules inspect members of namespace imports from libraries such as Zod. Fixed type inference so blanket re-exports do not expose default exports.
#11628a2f8ff7 Thanks @dyc3! - Added the nursery rule noXorAsExponentiation, which reports the bitwise XOR operator ^ between two decimal integer literals, where the exponentiation operator ** was likely intended.
#11676840a52a Thanks @dyc3! - Fixed #11672 and #11671 by disabling the experimental capitalized-call and effect-dependency checks in useReactCompiler, matching their exclusion from upstream's recommended lint preset. Valid calls such as Intl.NumberFormat() and captures of variables declared inside effects no longer produce these diagnostics.
#1166049485ed Thanks @ematipico! - Fixed #11653: Astro template suppression comments ({/* biome-ignore lint: reason */}) now suppress matching HTML lint diagnostics on the following line when full HTML support is enabled.
#1163062e1fc5 Thanks @dyc3! - Fixed the HTML formatter inserting whitespace between adjacent Svelte expressions when their combined length exceeds the line width.
#11658ed4bfa4 Thanks @fredrikblau! - Fixed #11644: useHeadingContent no longer reports headings that render their text with a directive: set:html and set:text in Astro files, v-html and v-text in Vue files.
interfaceContext{doSomething(): Promise<void>;}declarefunctiontest(callback: (ctx: Context)=>Promise<void>): void;test(async(ctx)=>{ctx.doSomething();// now reported as a floating promise});
#11698b019982 Thanks @denbezrukov! - Fixed parsing of unquoted CSS URLs beginning with @ or !, such as url(@/assets/icon.svg) and url(!font.woff2). Preserved escaped and non-ASCII whitespace in raw URLs during formatting.
#11622c23e4c7 Thanks @Netail! - Added the nursery rule noUnsafeIframeSandbox, which reports iframe elements whose sandbox attribute combines allow-scripts and allow-same-origin, since that combination lets the embedded document remove its own sandboxing.
#116704969ee1 Thanks @ematipico! - Fixed #7527: suppression actions for diagnostics emitted on comments are now inserted before the diagnostic comment. In particular, suppressing noTsIgnore now places the biome-ignore comment before @ts-ignore.
#11440b88f1ea Thanks @Princesseuh! - Fixed Astro attribute names being split on : and . inside an expression, such as {x && <button x-on:keyup.enter={go} client:load.foo />}.
#11440b88f1ea Thanks @Princesseuh! - Fixed a bare > in the children of an Astro expression being treated as markup, such as {x && <div>a > b</div>}.
#11440b88f1ea Thanks @Princesseuh! - Fixed HTML comments inside an Astro expression failing to parse. They are now read as trivia, wherever they appear among the children.
{x&& <div><!-- first -->text<!-- last --></div>}{cond&& <a></a><!--c--><b></b>}
#11440b88f1ea Thanks @Princesseuh! - Fixed is:raw children inside an Astro expression being read as JSX, such as {x && <div is:raw>{not js} < & text</div>}.
#11440b88f1ea Thanks @Princesseuh! - Fixed an apostrophe or quote in the text of a JSX element inside an Astro expression ending the expression early, such as {items.map((i) => <li>it's {i}</li>)}.
#11440b88f1ea Thanks @Princesseuh! - Fixed the children of a <script> or <style> inside an Astro expression being read as JSX. Their contents are text, so braces and comparisons no longer have to be escaped.
{cond&& <style>a {color: red}</style>}{cond&& <script>let x = {a: 1};</script>}
#11440b88f1ea Thanks @Princesseuh! - Added support for template literal attribute values inside an Astro expression, such as {x && <C data-x=`t${x}` />}.
#11440b88f1ea Thanks @Princesseuh! - Fixed unquoted attribute values being rejected inside an Astro expression, such as {x && <a class=foo maxlength=255 href=/about>go</a>}.
#11440b88f1ea Thanks @Princesseuh! - Fixed a template literal nested inside ${} breaking the rest of an Astro file, such as const href = `/blog${page === 0 ? '' : `/${page + 1}`}`;.
#11440b88f1ea Thanks @Princesseuh! - Fixed a quote inside a regex character class breaking the rest of an Astro file, such as const unsafe = /[/"]/;.
#1150854f3a2e Thanks @dyc3! - Added the nursery rule useFlatMathMinMax. Because Math.min() and Math.max() accept any number of arguments, the rule reports unnecessary nested calls to the same method:
Math.max(Math.max(a,b),c);
The fix flattens this expression to Math.max(a, b, c).
#11585c5c8315 Thanks @Netail! - Fixed #11475: noUnresolvedImports no longer reports Bun runtime built-in modules (bun, bun:bundle, bun:ffi, bun:jsc, bun:sqlite, bun:test).
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This PR contains the following updates:
2.2.5→2.5.14Release Notes
biomejs/biome (@biomejs/biome)
v2.5.14Compare Source
Patch Changes
#9022
0d49e24Thanks @dyc3! - Added the nursery rulenoReturnInFinally. This rule disallows return statements inPromise.prototype.finally()callbacks, including inside nested blocks and conditional branches. Returns in nested functions are ignored by the rule.Returning a value from a
Promise.prototype.finally()callback does not replace the original promise's fulfillment value, which can be confusing. Returned promises and thenables are awaited, and their rejection rejects the resulting promise.#11754
71eaa0dThanks @griff-rees! - Added the nursery rulenoSvelteAtDebugTags, which disallows Svelte's{@debug}tag.The
{@debug}tag is a debugging aid and should be removed once you no longer need it, as it should not remain in production code. The rule provides a safe fix that removes the tag.#11725
5eb5f09Thanks @m1handr! - Added the nursery ruleuseValidTestTitle, which enforces valid titles for unit test cases and suites.#11735
9bd70c7Thanks @ematipico! - Fixed #8471:source.fixAll.biomeignoredformatter.formatWithErrors. It now applies safe fixes without formatting files that have parse errors when the option is disabled.#11715
f05a3c3Thanks @ematipico! - Fixed #7771: Grit plugins that usesequentialno longer panic when Biome processes files.#11766
c2542c6Thanks @dyc3! - Fixed validation ofreadonlyandaccessormodifiers: combining them in either order now reports that they cannot be used together.#11461
22e9966Thanks @FoundDream! - Fixed #11423: Multiline template interpolations now preserve the indentation of their closing brace when the source indentation is not a multiple oftabWidth.const value = ` ${ condition ? "yes" : "no" -} + } `;#11766
c2542c6Thanks @dyc3! - Fixed #11763: TypeScript class members usingoverride accessor, such asoverride accessor value = 1, now parse correctly. The reversed order,accessor override, now reports thatoverridemust precedeaccessor.#11790
17d0ff0Thanks @ematipico! - Fixed #10248:noUselessFragmentsnow allows fragments with props in Astro files, such as<Fragment slot="name">{text}</Fragment>inside template expressions.#11777
7ee3a6cThanks @ematipico! - Fixed #7573: added therequireExplicitCaseoption touseExhaustiveSwitchCases. When set totrue, the rule reports missing cases even when the switch has adefaultclause, so you can keep a runtime fallback while checking that every value in the union has its own case. The option defaults tofalse.#11751
d37f24bThanks @ematipico! - Fixed #8347: the fix fromuseConsistentArrowReturnnow parenthesizes returned expressions that begin with object literals before removing the arrow function body braces, preventing invalid output for expressions such as object property access.#11784
46e8912Thanks @dyc3! - Fixed #11782:noUndeclaredCustomPropertiescould hang while checking stylesheets imported by JavaScript modules with many shared dependencies.#11731
1534885Thanks @ematipico! - Fixed #7984: The fix fromuseSimplifiedLogicExpressionnow preserves line breaks in multiline conditions with line comments, preventing the right-hand side condition from being commented out.#11735
9bd70c7Thanks @ematipico! - Fixed #7304: the HTML formatter now preserves authored segment breaks between CJK characters, and next to CJK punctuation, instead of replacing them with spaces.#11749
ff992a1Thanks @ematipico! - Fixed #11747: formatting and checking large parenthesized object expressions no longer exhibit quadratic slowdowns.#11736
1dd1fc4Thanks @dyc3! - Fixed #8177: code actions no longer modify the wrong part of Vue, Svelte, or Astro files when experimental full HTML support is disabled.#11743
3835945Thanks @santichausis! - Fixed #10247:biome check --write/biome lint --writenow correctly writes fixes for code inside an HTML attribute expression (for example a Svelteonclick={...}handler, or a mustache expression like{count}), instead of silently reporting the diagnostic as fixable and applying nothing.For example, running
biome lint --write --unsafeforuseBlockStatements(an unsafe fix) on this Svelte component used to leave the file unchanged:#11740
8ea8b4aThanks @dyc3! - Fixed #11453:useConsistentTestItnow updates imports alongside calls, preserving the original export through an alias. The rule ignores locally declared functions and withholds fixes when the preferred name would conflict with another binding or global reference.#11355
27177caThanks @dyc3! - Fixed the HTML formatter incorrectly applying native HTML element formatting to PascalCase component names such as<Ul>and<Body>in Vue, Svelte, and Astro files.#11355
27177caThanks @dyc3! - Fixed the HTML formatter incorrectly applying SVG block formatting to unknown elements whose names matched SVG element names.#11741
fc69047Thanks @dyc3! - Fixed #8893:useImportExtensionsno longer suggests adding.tsto.jsximports when a colocated.d.tsfile provides type declarations.#11642
c87341cThanks @dyc3! - Added the nursery rule useConsistentFunctionStyle, which requires a consistent style for defining functions.By default, the rule reports the following declaration because it requires a function expression assigned to a variable:
#11770
ddfd622Thanks @dyc3! - Fixed #8980: suppression comments targeting the entireassistcategory are now respected, includingbiome-ignore-all assistwhen runningcheck.#11792
7a4b895Thanks @dyc3! - Fixed dashed utility base names in the Tailwind parser, includingborder-bs,font-features, andscrollbar-thumb. Classes such asmin-inline-[12rem]now preserve the complete base name and parse the arbitrary value separately.#11739
1fc17e3Thanks @Netail! - The ruleuseIncludesnow also reportslastIndexOf()comparisons andsome()calls with a strict-equality callback.#11735
9bd70c7Thanks @ematipico! - Fixed #6888. GritQL plugins can now usecontainson import-clause metavariables such as$clauseinimport $clause from "module"patterns.#11790
17d0ff0Thanks @ematipico! - Fixed #11786:useAnchorContentnow reports anchors without accessible content in HTML, Astro, Vue, and Svelte even when they have anaria-label,aria-labelledby, ortitleattribute, matching JSX behavior.#11651
a9c4aa0Thanks @saberoueslati! - Added the new nursery rulenoVueUndeclaredDirectives, which reports custom Vue directives that are not declared by a<script setup>binding, the component'sdirectivesoption, or the rule'sglobalsoption. Closes #11478.Aliased named imports in single-file components are now tracked under their local name, so
noUndeclaredVariablesrecognizesvHighlightinimport { highlight as vHighlight } from "./directives".#11715
f05a3c3Thanks @ematipico! - Fixed #7795. ThenoJsxLiteralsrule now ignores surrounding whitespace when matching literals againstallowedStrings.#11780
99c7049Thanks @ematipico! - Fixed false positives inuseExhaustiveSwitchCaseswhen numeric cases use different spellings of the same value. For example,case 0x1now covers the numeric literal type1.#11720
c7c4e2bThanks @ematipico! - Fixed #7880:noUselessStringConcatno longer reports literal concatenations split across multiple lines when a numeric literal ends the chain.#11355
27177caThanks @dyc3! - Improved performance of the HTML formatter for documents that contain many HTML-native or SVG-native tags.#11720
c7c4e2bThanks @ematipico! - Fixed #7949:useReadonlyClassPropertiesnow reports static class properties that are never reassigned.#11751
d37f24bThanks @ematipico! - Fixed #7644:useImportExtensionsnow resolves path aliases declared by referenced TypeScript project configurations.#11791
f88793cThanks @dyc3! - Fixed a false positive inuseTailwindShorthandClassesfor strings in conditional tests, such ascn(m === "w-2 h-2" ? "bg-red-800" : "bg-red-400").#11720
c7c4e2bThanks @ematipico! - Fixed #7783:noNoninteractiveElementInteractionsno longer reports event handlers on native<dialog>elements.#11733
7030068Thanks @dyc3! - Fixed #11730:useExhaustiveSwitchCasesreports missing cases when iterating over a class property withfor...of.#11717
2107daeThanks @ternaus! - Fixed #11716: thenoUnknownAttributerule now accepts fullscreen event handlers, thecredentiallessiframe property, and the SVGmaskTypeproperty when the React dependency range allows React 19.3 or later. ThecredentiallessandmaskTypeproperties are restricted to<iframe>and<mask>elements, respectively.#11737
b7e3559Thanks @dyc3! - Fixed #11692:noFloatingPromisesnow detects unhandled promises returned through generic method signatures, including Playwright fixtures.#11780
99c7049Thanks @ematipico! - Fixed #7747:useExhaustiveSwitchCasesnow reports missing cases for literal unions derived from const tuples with(typeof values)[number]and objects withkeyof typeof object.Other type-aware rules, including
noFloatingPromisesandnoUselessTypeConversion, also recognize supported indexed-access results.#11724
a9a5e9aThanks @dyc3! - Fixed redundant parentheses around binary and logical unary operands with leading line comments.#11715
f05a3c3Thanks @ematipico! - Fixed #7722:noUnusedImportsno longer reports type-only imports used in computed names of declared class properties.#11731
1534885Thanks @ematipico! - Fixed #6390: Biome now offers suppression actions fornoDynamicNamespaceImportAccessin editors.#11751
d37f24bThanks @ematipico! - Fixed #7533:noDescendingSpecificityno longer compares selector specificity across separate cascade layer blocks.#11735
9bd70c7Thanks @ematipico! - Fixed #6206:useUniqueElementIdsno longer reports static IDs on elements in SVG contexts.#11715
f05a3c3Thanks @ematipico! - Fixed #5447, so the GitHub reporter now associates annotations with the correct files when Biome runs from a nested directory.#11720
c7c4e2bThanks @ematipico! - Fixed #7816:useHookAtTopLevelno longer reports methods named like hooks when called on another function's result, such asReactotron.configure(...).useReactNative(...).#11355
27177caThanks @dyc3! - Removed special HTML formatter handling for the obsolete<listing>element.#11731
1534885Thanks @ematipico! - Fixed an issue where Grit plugin code fixes weren't available as editor code actions.#11726
dea163fThanks @dyc3! - Fixed #11722: the JavaScript formatter inserts a newline before the closing angle bracket when a leading comment forces type arguments onto multiple lines.#9758
02ea438Thanks @Netail! - Added the nursery rulenoJsonUnsafeValues, which disallows JSON values that are unsafe to use between different tools or languages.Invalid:
#11790
17d0ff0Thanks @ematipico! - Fixed #8574: the JavaScript formatter sometimes added extra parentheses and moved comments when formatting multiline expressions after operators such as!. Comments now stay beside the values they describe, without an extra pair of parentheses.#11715
f05a3c3Thanks @ematipico! - Fixed #7711:biome lint --suppressno longer fails with conflicting rule fixes when multiple diagnostics target a declaration preceded by a multiline comment.#11700
0e9fe53Thanks @dyc3! - Added the nursery rulenoObsoleteTags, which reports obsolete HTML elements in HTML and JSX, such as<font color="red">Text</font>.#11735
9bd70c7Thanks @ematipico! - Fixed #7363: Biome GritQL plugins now match TypeScript interface snippets such asinterface $name { $body }.#11729
f047985Thanks @m1handr! - Added support forsuite()as an alias ofdescribe()across test analysis rules and formatter. Rules now recognizesuite,fsuite,xsuite, andtest.suiteblocks. The formatter recognises them as test declarations.#11778
4b7aa1fThanks @ematipico! - Fixed #7727: GritQL snippets such asimport $what from $wherenow match namespace imports, including type-only imports. Explicitimport type $what from $wherepatterns also match type-only named and namespace imports.#11715
f05a3c3Thanks @ematipico! - Fixed #7603:useSingleJsDocAsteriskno longer reports asterisks that are part of JSDoc comment content, such as italic text, as extra line markers.#11706
e19512aThanks @dyc3! - Fixed #11704: files re-included by negation patterns in a nested.gitignoreare processed whenvcs.useIgnoreFileis enabled, even when the ignore file contains*.#11718
76a302aThanks @dyc3! - Fixed #8573: own-line comments before binary operators stay above the operator whenjavascript.formatter.operatorLinebreakis"before".#9797
64fd314Thanks @Netail! - Added the nursery ruleuseConsistentObjectKeys, which requires JSON object keys to follow a consistent Unicode representation.v2.5.13Compare Source
Patch Changes
#11379
07a0073Thanks @Netail! - Added the nursery ruleuseLayeredStyles, which enforces that style rules are defined within a cascade layer and import rules to import its styles into a cascade layer.#11667
e997900Thanks @devtechedge! - Added the nursery ruleuseBetterDomTraversing, which prefers.firstChild,.firstElementChild,.closest(), and merged.querySelector()calls over positional DOM traversal.#11620
20e513aThanks @jakeleventhal! - Fixed #11610, #11611, #11612, #11615, and #11616: Biome no longer fully infers an imported generic declaration just to apply its type arguments, restoring type-aware lint performance for large libraries such as Zod. This improvesuseRegexpExec,noFloatingPromises,noMisusedPromises,useNullishCoalescing, andnoUnsafePlusOperands.#11657
e322040Thanks @ematipico! - Fixed #7495:noUselessConstructornow ignores TypeScript constructors that forward at least one argument tosuper, preserving constructors that narrow the subclass's accepted parameter types. The exemption also applies when the parent and child signatures are identical; JavaScript and zero-argument forwarding behavior are unchanged.#11670
4969ee1Thanks @ematipico! - Fixed #7076:useAriaPropsForRoleanduseFocusableInteractiveno longer report non-focusable elements withrole="separator". A separator with an explicittabIndexortabindexstill requiresaria-valuenow.#11627
23aad6dThanks @ematipico! - Fixed #6571 so Grit plugins can capture and inspect multiple named import specifiers.#11631
00dbd3aThanks @ematipico! - Reduced unnecessary type inference when type-aware lint rules inspect members of namespace imports from libraries such as Zod. Fixed type inference so blanket re-exports do not expose default exports.#11628
a2f8ff7Thanks @dyc3! - Added the nursery rulenoXorAsExponentiation, which reports the bitwise XOR operator^between two decimal integer literals, where the exponentiation operator**was likely intended.#11670
4969ee1Thanks @ematipico! - Fixed #7192:noUnusedPrivateClassMembersnow considers compound assignments such as??=to read and use private class members.#11676
840a52aThanks @dyc3! - Fixed #11672 and #11671 by disabling the experimental capitalized-call and effect-dependency checks inuseReactCompiler, matching their exclusion from upstream's recommended lint preset. Valid calls such asIntl.NumberFormat()and captures of variables declared inside effects no longer produce these diagnostics.#11660
49485edThanks @ematipico! - Fixed #11653: Astro template suppression comments ({/* biome-ignore lint: reason */}) now suppress matching HTML lint diagnostics on the following line when full HTML support is enabled.#11664
9a73b9cThanks @dyc3! - Improved the performance ofuseRegexpExec.#11661
5341b3fThanks @ematipico! - Fixed #7479.noUnusedVariablesnow treats Unicode escapes in identifiers as the same binding as their decoded spelling.#11630
62e1fc5Thanks @dyc3! - Fixed the HTML formatter inserting whitespace between adjacent Svelte expressions when their combined length exceeds the line width.#11658
ed4bfa4Thanks @fredrikblau! - Fixed #11644:useHeadingContentno longer reports headings that render their text with a directive:set:htmlandset:textin Astro files,v-htmlandv-textin Vue files.#11613
47d7383Thanks @ematipico! - Improved the performance of Biome Formatter up to ~50% in some cases.#11655
fd8fc74Thanks @ematipico! - Fixed #6974, wherenoUnusedPrivateClassMembersincorrectly reported TypeScript private constructor properties read through object destructuring fromthisas unused.#11618
21a10cfThanks @siketyan! - Fixed #11605: Type inference now infers the type of an unannotated callback parameter from the signature of the function the callback is passed to, and honours explicit type arguments on call expressions. This improves type-aware analysis fornoBaseToString,noFloatingPromises,noMisleadingReturnType,noMisusedPromises,noUnnecessaryConditions,noUnsafePlusOperands,noUselessTypeConversion,useArrayFind,useArraySortCompare,useAwaitThenable,useDisposables,useExhaustiveSwitchCases,useIncludes,useNullishCoalescing,useRegexpExec, anduseStringStartsEndsWith. For example,noFloatingPromisescan now detect Promises reached through such parameters:#11698
b019982Thanks @denbezrukov! - Fixed parsing of unquoted CSS URLs beginning with@or!, such asurl(@/assets/icon.svg)andurl(!font.woff2). Preserved escaped and non-ASCII whitespace in raw URLs during formatting.#11622
c23e4c7Thanks @Netail! - Added the nursery rulenoUnsafeIframeSandbox, which reportsiframeelements whosesandboxattribute combinesallow-scriptsandallow-same-origin, since that combination lets the embedded document remove its own sandboxing.#11606
de0528fThanks @dyc3! - Added the recommendednoSvelteAtHtmlTagsnursery rule, which reports Svelte{@html}tags that render unescaped HTML.#11670
4969ee1Thanks @ematipico! - Fixed #6782: GritQL plugins now match captured JSX component names against code snippets such asReact.Fragment.#11687
09d97d9Thanks @hori-design! - Fixed #11678:useReactCompilerno longer panics on files that contain non-ASCII characters. This bumps the React Compiler version.#11595
a64d757Thanks @dyc3! - Added the nursery Vue-domain ruleuseVueBaseImportrule, which enforces importing Vue APIs fromvueinstead of internal@vue/*packages.#11675
353cbaeThanks @dyc3! - FixeduseReactCompilersilently producing no diagnostics in WebAssembly builds, including the playground.#11625
ea20e5aThanks @denbezrukov! - Improved linting performance for large CSS and JSON files.#11670
4969ee1Thanks @ematipico! - Fixed #7527: suppression actions for diagnostics emitted on comments are now inserted before the diagnostic comment. In particular, suppressingnoTsIgnorenow places thebiome-ignorecomment before@ts-ignore.#11655
fd8fc74Thanks @ematipico! - Fixed #8629, wherenoUnusedPrivateClassMembersincorrectly reported used private TypeScript method overload signatures as unused.#11669
579f401Thanks @denbezrukov! - Improved the performance ofnoExcessiveLinesPerFilewhenskipBlankLinesisfalse.v2.5.12Compare Source
Patch Changes
#11440
b88f1eaThanks @Princesseuh! - Fixed Astro attribute expressions rejecting TypeScript and JSX syntax that is accepted in text expressions.#11440
b88f1eaThanks @Princesseuh! - Fixed Astro attribute names being split on:and.inside an expression, such as{x && <button x-on:keyup.enter={go} client:load.foo />}.#11440
b88f1eaThanks @Princesseuh! - Fixed a bare>in the children of an Astro expression being treated as markup, such as{x && <div>a > b</div>}.#11440
b88f1eaThanks @Princesseuh! - Fixed HTML comments inside an Astro expression failing to parse. They are now read as trivia, wherever they appear among the children.#11440
b88f1eaThanks @Princesseuh! - Fixedis:rawchildren inside an Astro expression being read as JSX, such as{x && <div is:raw>{not js} < & text</div>}.#11440
b88f1eaThanks @Princesseuh! - Fixed an apostrophe or quote in the text of a JSX element inside an Astro expression ending the expression early, such as{items.map((i) => <li>it's {i}</li>)}.#11440
b88f1eaThanks @Princesseuh! - Fixed the children of a<script>or<style>inside an Astro expression being read as JSX. Their contents are text, so braces and comparisons no longer have to be escaped.#11440
b88f1eaThanks @Princesseuh! - Added support for template literal attribute values inside an Astro expression, such as{x && <C data-x=`t${x}` />}.#11440
b88f1eaThanks @Princesseuh! - Fixed unquoted attribute values being rejected inside an Astro expression, such as{x && <a class=foo maxlength=255 href=/about>go</a>}.#11440
b88f1eaThanks @Princesseuh! - Fixed a template literal nested inside${}breaking the rest of an Astro file, such asconst href = `/blog${page === 0 ? '' : `/${page + 1}`}`;.#11440
b88f1eaThanks @Princesseuh! - Fixed a quote inside a regex character class breaking the rest of an Astro file, such asconst unsafe = /[/"]/;.#11508
54f3a2eThanks @dyc3! - Added the nursery ruleuseFlatMathMinMax. BecauseMath.min()andMath.max()accept any number of arguments, the rule reports unnecessary nested calls to the same method:The fix flattens this expression to
Math.max(a, b, c).#11585
c5c8315Thanks @Netail! - Fixed #11475:noUnresolvedImportsno longer reports Bun runtime built-in modules (bun,bun:bundle,bun:ffi,bun:jsc,bun:sqlite,bun:test).#11368
52a57b3Thanks @Austin1serb!Configuration
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