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@dependabot dependabot bot commented on behalf of github Nov 3, 2025

Bumps esbuild from 0.25.11 to 0.25.12.

Release notes

Sourced from esbuild's releases.

v0.25.12

  • Fix a minification regression with CSS media queries (#4315)

    The previous release introduced support for parsing media queries which unintentionally introduced a regression with the removal of duplicate media rules during minification. Specifically the grammar for @media <media-type> and <media-condition-without-or> { ... } was missing an equality check for the <media-condition-without-or> part, so rules with different suffix clauses in this position would incorrectly compare equal and be deduplicated. This release fixes the regression.

  • Update the list of known JavaScript globals (#4310)

    This release updates esbuild's internal list of known JavaScript globals. These are globals that are known to not have side-effects when the property is accessed. For example, accessing the global Array property is considered to be side-effect free but accessing the global scrollY property can trigger a layout, which is a side-effect. This is used by esbuild's tree-shaking to safely remove unused code that is known to be side-effect free. This update adds the following global properties:

    From ES2017:

    • Atomics
    • SharedArrayBuffer

    From ES2020:

    • BigInt64Array
    • BigUint64Array

    From ES2021:

    • FinalizationRegistry
    • WeakRef

    From ES2025:

    • Float16Array
    • Iterator

    Note that this does not indicate that constructing any of these objects is side-effect free, just that accessing the identifier is side-effect free. For example, this now allows esbuild to tree-shake classes that extend from Iterator:

    // This can now be tree-shaken by esbuild:
    class ExampleIterator extends Iterator {}
  • Add support for the new @view-transition CSS rule (#4313)

    With this release, esbuild now has improved support for pretty-printing and minifying the new @view-transition rule (which esbuild was previously unaware of):

    /* Original code */
    @view-transition {
      navigation: auto;
      types: check;
    }
    /* Old output */
    @​view-transition { navigation: auto; types: check; }
    /* New output */
    @​view-transition {
    navigation: auto;
    types: check;

... (truncated)

Changelog

Sourced from esbuild's changelog.

0.25.12

  • Fix a minification regression with CSS media queries (#4315)

    The previous release introduced support for parsing media queries which unintentionally introduced a regression with the removal of duplicate media rules during minification. Specifically the grammar for @media <media-type> and <media-condition-without-or> { ... } was missing an equality check for the <media-condition-without-or> part, so rules with different suffix clauses in this position would incorrectly compare equal and be deduplicated. This release fixes the regression.

  • Update the list of known JavaScript globals (#4310)

    This release updates esbuild's internal list of known JavaScript globals. These are globals that are known to not have side-effects when the property is accessed. For example, accessing the global Array property is considered to be side-effect free but accessing the global scrollY property can trigger a layout, which is a side-effect. This is used by esbuild's tree-shaking to safely remove unused code that is known to be side-effect free. This update adds the following global properties:

    From ES2017:

    • Atomics
    • SharedArrayBuffer

    From ES2020:

    • BigInt64Array
    • BigUint64Array

    From ES2021:

    • FinalizationRegistry
    • WeakRef

    From ES2025:

    • Float16Array
    • Iterator

    Note that this does not indicate that constructing any of these objects is side-effect free, just that accessing the identifier is side-effect free. For example, this now allows esbuild to tree-shake classes that extend from Iterator:

    // This can now be tree-shaken by esbuild:
    class ExampleIterator extends Iterator {}
  • Add support for the new @view-transition CSS rule (#4313)

    With this release, esbuild now has improved support for pretty-printing and minifying the new @view-transition rule (which esbuild was previously unaware of):

    /* Original code */
    @view-transition {
      navigation: auto;
      types: check;
    }
    /* Old output */
    @​view-transition { navigation: auto; types: check; }
    /* New output */
    @​view-transition {
    navigation: auto;

... (truncated)

Commits
  • 208f539 publish 0.25.12 to npm
  • 5f03afd update release notes
  • 6b2ee78 minify: remove css rules containing empty :is()
  • f361deb add some additional known static methods
  • 07aa646 automatically mark "RegExp.escape()" calls as pure
  • 9039c46 simplify some call expression checks
  • 188944d add some additional known static methods
  • d3c67f9 fix #4310: add Iterator and other known globals
  • 4a51f0b fix: escape dev server breadcrumb hrefs properly (#4316)
  • 26b29ed fix #4315: @media deduplication bug edge case
  • Additional commits viewable in compare view

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Bumps [esbuild](https://github.com/evanw/esbuild) from 0.25.11 to 0.25.12.
- [Release notes](https://github.com/evanw/esbuild/releases)
- [Changelog](https://github.com/evanw/esbuild/blob/main/CHANGELOG.md)
- [Commits](evanw/esbuild@v0.25.11...v0.25.12)

---
updated-dependencies:
- dependency-name: esbuild
  dependency-version: 0.25.12
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot bot added dependencies Pull requests that update a dependency file javascript Pull requests that update Javascript code labels Nov 3, 2025
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Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff Package Supply Chain
Security
Vulnerability Quality Maintenance License
Addednpm/​esbuild@​0.25.12921007394100

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codecov bot commented Nov 3, 2025

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.88%. Comparing base (ba61596) to head (91ae1a3).

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #1387      +/-   ##
==========================================
+ Coverage   70.87%   70.88%   +0.01%     
==========================================
  Files         410      410              
  Lines        9824     9824              
  Branches     9824     9824              
==========================================
+ Hits         6963     6964       +1     
+ Misses       2464     2463       -1     
  Partials      397      397              

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