chore(deps): update dependency @biomejs/biome to v2.5.9

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@biomejs/biome (source)	2.5.8 → 2.5.9

---

Release Notes

biomejs/biome (@​biomejs/biome)

v2.5.9

Compare Source

Patch Changes

• #​11321 41386f3 Thanks @​dyc3! - Fixed #​11315: The CSS parser now recovers at declaration boundaries after bogus declarations, allowing subsequent valid declarations to be parsed.

• #​11248 57b197e Thanks @​yanthomasdev! - Expanded the environment variable metadata used by biome rage to include BIOME_BINARY, BIOME_LOG_FILE, and RUST_BACKTRACE as well as reworded explanations for better readability.

• #​11377 a8798ea Thanks @​Netail! - Added a new nursery rule useNamedLayer which disallows anonymous cascade layers.

  @layer {
    a {
      color: red;
    }
  }

• #​11327 6771cf5 Thanks @​dyc3! - The HTML formatter now preserves meaningful blank lines in HTML, including spacing after elements with trailing spaces and blank lines between comment groups.

   <div>
     <!-- first group -->
  +
     <!-- second group -->
   </div>

• #​10312 ba8aa18 Thanks @​dyc3! - Added the nursery rule useTailwindShorthandClasses, which suggests shorter Tailwind utility classes. For example, the rule suggests replacing w-4 h-4 with size-4.

• #​11333 715e0cd Thanks @​kkkhs! - Fixed #​11328: lint/nursery/useExpect now recognizes Vitest Browser Mode expect.element() calls as assertions.

• #​11343 9b98211 Thanks @​johncarmack1984! - Fixed #​11311: the CSS parser now accepts Tailwind container-query variant names in @variant, such as @xl and @max-xl. These previously produced a parse error and a noUnknownAtRules diagnostic.

  @variant @xl {
    div {
      background: red;
    }
  }

• #​11220 3e8c488 Thanks @​santichausis! - Fixed #​9541: noUndeclaredVariables, noUnusedImports, and noUnusedVariables now correctly recognise exported variables and functions declared in one embedded <script> block as usable from a sibling <script> block, in Svelte's <script module>/<script> pair and Vue's non-setup <script> blocks.

  For example, Biome no longer reports greet as undeclared in the following Svelte component:

  <script module>
    export function greet() {
      console.log("Hello!");
    }
  </script>
  
  <script>
    greet();
  </script>

• #​11300 36430eb Thanks @​dyc3! - Fixed the HTML formatter's whitespace handling for marquee, noscript, video, audio, and object elements.

  - <marquee behavior="alternate"> This text will bounce </marquee>
  + <marquee behavior="alternate">This text will bounce</marquee>

• #​11299 6559e6c Thanks @​jp-knj! - Added the nursery rule useAstroClientOnlyDirectiveValue, which reports Astro client:only directives without an initializer.

  For example, <Component client:only /> triggers the rule.

• #​11365 7529811 Thanks @​MHJahanbakhsh! - Fixed #​11229: The useGenericFontNames rule now treats math as a valid generic font family.

• #​11346 674f5f4 Thanks @​Jayllyz! - Fixed #​11335: noComponentHookFactories now reports a use-prefixed variable only when a function is assigned to it directly.

  function factory() {
    const useColors = true; // no longer reported
    const useStore = createStore({ count: 0 }); // no longer reported
    const useData = () => useState(null); // still reported
    return useColors;
  }

• #​11334 c87c46a Thanks @​zkasuran! - Fixed #​11317: noSvgWithoutTitle no longer reports an svg that uses the boolean shorthand aria-hidden (equivalent to aria-hidden={true} in React).

• #​11364 13853b1 Thanks @​ematipico! - Fixed a bug where useJsxKeyInIterable incorrectly flagged Astro files.

• #​11321 41386f3 Thanks @​dyc3! - Fixed #​11315: Invalid CSS declarations in HTML style attributes now produce parser diagnostics instead of causing a panic.

• #​11325 67c3bf0 Thanks @​dyc3! - Fixed HTML text wrapping to account for the width of an adjacent closing tag, avoiding lines that exceed the configured width when the final word and tag must move together.

   <a-long-long-long-element
  -  >foo bar foo bar foo bar foo bar foo bar foo bar foo bar</a-long-long-long-element
  +  >foo bar foo bar foo bar foo bar foo bar foo
  +  bar</a-long-long-long-element
   >

• #​11367 fe5b5d4 Thanks @​ematipico! - Fixed TypeScript compilerOptions.paths resolution when mapping targets omit ./. Biome now resolves these targets relative to their configured path base.

• #​11316 17e48d6 Thanks @​wanxiankai! - Fixed #​11289: the safe fix for noExtraBooleanCast now preserves parentheses around nested conditional expressions.

• #​11254 d25d113 Thanks @​dyc3! - Fixed #​11242: Biome no longer crashes with an access violation when analysing files on Windows ARM64.

• #​11221 85aac73 Thanks @​freeatnet! - Added the nursery rule noUnsafeTypeAssertion, which disallows TypeScript type assertions while allowing const assertions.

  const value = input as SomeType;

• #​11314 7ffb677 Thanks @​ematipico! - Fixed #​11310: Restored the performance of noMisusedPromises and noFloatingPromises when analyzed expressions share deep imported type paths.

• #​11356 6cd3263 Thanks @​johncarmack1984! - The Tailwind parser now understands modifiers on bare utilities (@container/sidebar, shadow/50).

• #​11318 76059e9 Thanks @​johncarmack1984! - The Tailwind parser now understands container-query variants (@sm:, @max-lg:, @min-[400px]:) and child and descendant variants (*:, **:).

• #​11357 faa2074 Thanks @​johncarmack1984! - The Tailwind parser now accepts the legacy leading ! important marker (!flex, hover:!p-4).

• #​11344 f34e15c Thanks @​johncarmack1984! - The Tailwind parser now understands combinator selectors in arbitrary variants (has-[>svg]:, has-[+p]:), modifiers on variants (group-hover/menu:, @sm/main:), and arbitrary container-query sizes (@[400px]:).

• #​11324 2f5d452 Thanks @​dyc3! - Fixed HTML formatting that inserted rendered whitespace between an element and touching text when the line wrapped.

    <div>
  -   before<meter value=".5"></meter>
  -   after
  +   before<meter value=".5"></meter
  +   >after
    </div>

• #​11312 e65f07e Thanks @​xosnos! - Added a new nursery rule useControlLabel for both HTML and JSX, which reports interactive control elements (button, menuitem) without an accessible label.

  <button />

• #​11364 13853b1 Thanks @​ematipico! - Fixed SVG parsing for files with an XML declaration followed by a PUBLIC doctype, such as <?xml version="1.0"?><!DOCTYPE svg PUBLIC "a" "b">.

• #​11301 610ee28 Thanks @​dyc3! - Fixed parent tag wrapping when an HTML element starts or ends with a block-like or hidden child such as source, track, or param.

  - <video src="brave.webm"><track kind="subtitles" src="brave.en.vtt"></video>
  + <video src="brave.webm">
  +   <track kind="subtitles" src="brave.en.vtt">
  + </video>

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Performance Comparison Report

• Current: HEAD (b63d06f) - 2026-08-18 02:08:17Z
• Baseline: main (dff811b) - 2026-08-18 02:07:46Z

Significant Changes To Duration

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Meaningless Changes To Duration

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Name	Type	Duration	Count
Perf test Renders markdown	render	5.2 ms → 5.2 ms (-0.0 ms, -0.6%)	1 → 1

Show details

Name	Type	Duration	Count
Perf test Renders markdown	render	Baseline Mean: 5.2 ms Stdev: 0.2 ms (3.2%) Runs: 5.6 5.1 5.2 5.2 5.1 5.2 5.1 5.3 5.1 5.1 Warmup runs: 4324.2 Removed outliers: (none) Stability: 3.2% Current Mean: 5.2 ms Stdev: 0.2 ms (4.6%) Runs: 5.8 5.2 5.0 5.1 5.0 5.0 5.2 5.3 5.1 4.9 Warmup runs: 202.8 Removed outliers: (none) Stability: 4.6%	Baseline Mean: 1 Stdev: 0 (0.0%) Runs: 1 1 1 1 1 1 1 1 1 1 Render issues: Current Mean: 1 Stdev: 0 (0.0%) Runs: 1 1 1 1 1 1 1 1 1 1 Render issues:

Render Count Changes

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Render Issues

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Added Entries

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Removed Entries

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Stability

Name	Baseline	Current
Weighted Average	3.2%	4.6%

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