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@dependabot dependabot bot commented on behalf of github Dec 26, 2025

Bumps jsdom from 27.0.1 to 27.4.0.

Release notes

Sourced from jsdom's releases.

Version 27.4.0

  • Added TextEncoder and TextDecoder.
  • Improved decoding of HTML bytes by using the new @exodus/bytes package; it is now much more correct. (ChALkeR)
  • Improved decoding of XML bytes to use UTF-8 more often, instead of sniffing for <meta charset> or using the parent frame's encoding.
  • Fixed a memory leak when Ranges were used and then the elements referred to by those ranges were removed.

Version 27.3.0

  • Improved CSS parsing and CSSOM object APIs via updates to @acemir/cssom. (acemir)

Version 27.2.0

  • Added CSSGroupingRule, CSSNestedDeclarations, CSSConditionRule, CSSContainerRule, CSSScopeRule, CSSSupportsRule, CSSLayerBlockRule, and CSSLayerStatementRule to jsdom Windows. (acemir)
  • Improved CSS parsing and CSSOM object APIs via updates to @acemir/cssom. (acemir)
  • Fixed @import-ed stylesheets to be properly exposed to CSSOM, and not to overwrite the sheet created from the <link> or <style> element. (acemir)

Version 27.1.0

  • Improved CSS parsing by switching to @acemir/cssom, including support for nested selectors, nested declarations, layer statements, and improved at-rule validation. (acemir)
  • Fixed some selector cache invalidation issues where changes to attributes were not being picked up. (asamuzaK)
  • Fixed package.json "engines" field to reflect the new minimum Node.js versions needed to run jsdom, as noted in the changelog for v27.0.1.
Changelog

Sourced from jsdom's changelog.

27.4.0

  • Added TextEncoder and TextDecoder.
  • Improved decoding of HTML bytes by using the new @exodus/bytes package; it is now much more correct. (ChALkeR)
  • Improved decoding of XML bytes to use UTF-8 more often, instead of sniffing for <meta charset> or using the parent frame's encoding.
  • Fixed a memory leak when Ranges were used and then the elements referred to by those ranges were removed.

27.3.0

  • Improved CSS parsing and CSSOM object APIs via updates to @acemir/cssom. (acemir)

27.2.0

  • Added CSSGroupingRule, CSSNestedDeclarations, CSSConditionRule, CSSContainerRule, CSSScopeRule, CSSSupportsRule, CSSLayerBlockRule, and CSSLayerStatementRule to jsdom Windows. (acemir)
  • Improved CSS parsing and CSSOM object APIs via updates to @acemir/cssom. (acemir)
  • Fixed @import-ed stylesheets to be properly exposed to CSSOM, and not to overwrite the sheet created from the <link> or <style> element. (acemir)

27.1.0

  • Improved CSS parsing by switching to @acemir/cssom, including support for nested selectors, nested declarations, layer statements, and improved at-rule validation. (acemir)
  • Fixed some selector cache invalidation issues where changes to attributes were not being picked up. (asamuzaK)
  • Fixed package.json "engines" field to reflect the new minimum Node.js versions needed to run jsdom, as noted in the changelog for v27.0.1.
Commits
  • 098d16d Version 27.4.0
  • 1cd029e Improve asciiLowercase/asciiUppercase performance
  • 83fcb62 Implement TextEncoder and TextDecoder; improve XML decoding
  • ddad97d Switch from iconv-lite to exodus/bytes for decoding
  • 25cb2a1 Use weak references for ranges
  • ed4f5ed Add currently-failing CSS regression tests
  • 56b75c2 Version 27.3.0
  • decdb95 Update dependencies and dev dependencies
  • 542b1a6 CSSOM improvements
  • b0805a9 Version 27.2.0
  • Additional commits viewable in compare view

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Bumps [jsdom](https://github.com/jsdom/jsdom) from 27.0.1 to 27.4.0.
- [Release notes](https://github.com/jsdom/jsdom/releases)
- [Changelog](https://github.com/jsdom/jsdom/blob/main/Changelog.md)
- [Commits](jsdom/jsdom@27.0.1...27.4.0)

---
updated-dependencies:
- dependency-name: jsdom
  dependency-version: 27.4.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file javascript Pull requests that update Javascript code labels Dec 26, 2025
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