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@renovate renovate bot commented Nov 3, 2025

This PR contains the following updates:

Package Change Age Confidence
esbuild 0.25.11 -> 0.25.12 age confidence

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Release Notes

evanw/esbuild (esbuild)

v0.25.12

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  • 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 */
    @&#8203;view-transition {
      navigation: auto;
      types: check;
    }
    
    /* Old output */
    @&#8203;view-transition { navigation: auto; types: check; }
    
    /* New output */
    @&#8203;view-transition {
      navigation: auto;
      types: check;
    }

    The new view transition feature provides a mechanism for creating animated transitions between documents in a multi-page app. You can read more about view transition rules here.

    This change was contributed by @​yisibl.

  • Trim CSS rules that will never match

    The CSS minifier will now remove rules whose selectors contain :is() and :where() as those selectors will never match. These selectors can currently be automatically generated by esbuild when you give esbuild nonsensical input such as the following:

    /* Original code */
    div:before {
      color: green;
      &.foo {
        color: red;
      }
    }
    
    /* Old output (with --supported:nesting=false --minify) */
    div:before{color:green}:is().foo{color:red}
    
    /* New output (with --supported:nesting=false --minify) */
    div:before{color:green}

    This input is nonsensical because CSS nesting is (unfortunately) not supported inside of pseudo-elements such as :before. Currently esbuild generates a rule containing :is() in this case when you tell esbuild to transform nested CSS into non-nested CSS. I think it's reasonable to do that as it sort of helps explain what's going on (or at least indicates that something is wrong in the output). It shouldn't be present in minified code, however, so this release now strips it out.


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This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot requested a review from a team as a code owner November 3, 2025 07:37
@renovate renovate bot requested review from millotp and shortcuts and removed request for a team November 3, 2025 07:37
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algolia-bot commented Nov 3, 2025

✔️ Code generated!

Name Link
🪓 Triggered by 07f1f307ba41a05e5d82b26d7867a05eca28e546
🍃 Generated commit 892a10eb33a930abd81b17fb1db44d06894054cd
🌲 Generated branch generated/renovate/esbuild-0.x
📊 Benchmark results

Benchmarks performed on the method using a mock server, the results might not reflect the real-world performance.

Language Req/s
go 1699
javascript 1606
php 1495
csharp 1321
python 1109
java 984
ruby 797
swift 664
scala 23

@renovate renovate bot force-pushed the renovate/esbuild-0.x branch from 14b22a2 to c9961a4 Compare November 3, 2025 07:58
@millotp millotp merged commit e39bf6b into chore/renovateBaseBranch Nov 3, 2025
29 checks passed
@millotp millotp deleted the renovate/esbuild-0.x branch November 3, 2025 18:28
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3 participants