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chore(deps-dev): bump esbuild from 0.28.0 to 0.28.2 in /evals - #78

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chore(deps-dev): bump esbuild from 0.28.0 to 0.28.2 in /evals#78
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@dependabot dependabot Bot commented on behalf of github Jun 13, 2026

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Bumps esbuild from 0.28.0 to 0.28.2.

Release notes

Sourced from esbuild's releases.

v0.28.2

  • Fix tree shaking bug due to TypeScript import alias (#4507)

    This release fixes a bug that could cause esbuild to incorrectly tree-shake imports that are used in a TypeScript type alias under certain circumstances. Affected code uses a TypeScript-specific import assignment and looks something like this:

    import Base from './dep.js';
    import Alias = Base.SomeType;
  • Fix CSS minification bug involving & (#4497)

    This release fixes a bug where esbuild's CSS minifier incorrectly removed a & when it was unsafe to do so. Here is an example:

    /* Original code */
    .a .b {
      & .b:not(& .c) {
        color: red;
      }
    }
    /* Old output (with --minify) */
    .a .b{.b:not(& .c){color:red}}
    /* New output (with --minify) */
    .a .b{& .b:not(& .c){color:red}}

    This should match <span class="a"><span class="b"><span class="b">yes</span></span></span> but not <span class="a"><span class="b">no</span></span>. The old output incorrectly matched both.

  • Avoid overwriting input files without --allow-overwrite (#4484)

    For example: esbuild input.js --outfile=input.js tells esbuild to overwrite input.js with the output of running esbuild on it. This was supposed to already be prevented by default, but it accidentally regressed in version 0.17.0 and apparently didn't have any test coverage. The error message was being printed but the input file was still being overwritten. Oops.

    This release puts the original behavior back. With this release, esbuild should now actually avoid overwriting input files unless --allow-overwrite is explicitly present. This is done by not writing out any files when a build error is encountered.

  • Fix incorrect code generated when using top-level await (#4498)

    Previously esbuild could generate code containing a syntax error in complex scenarios involving top-level await used in a dependency cycle. The problem was a missing async on one or more module wrapper closures. With this release, esbuild now uses a fixed-point iteration algorithm to correctly annotate all dependencies in the cycle as needing an async module wrapper.

  • Fix a minification bug with lowered logical assignment operators (#4508)

    This release fixes a bug that could cause esbuild to generate incorrect code for logical assignment operators when lowering them to an older target environment. Specifically the lowering process requires duplicating the left-hand side, but esbuild incorrectly failed to count the duplicate as a new usage when the left-hand side is an identifier. That then caused the minifier to believe that the left-hand side was only used once and could attempt to incorrectly inline an initializer into the first usage. This bug has now been fixed:

    // Original code
    function foo() {
      let x
      bar(x ||= {})

... (truncated)

Changelog

Sourced from esbuild's changelog.

0.28.2

  • Fix tree shaking bug due to TypeScript import alias (#4507)

    This release fixes a bug that could cause esbuild to incorrectly tree-shake imports that are used in a TypeScript type alias under certain circumstances. Affected code uses a TypeScript-specific import assignment and looks something like this:

    import Base from './dep.js';
    import Alias = Base.SomeType;
  • Fix CSS minification bug involving & (#4497)

    This release fixes a bug where esbuild's CSS minifier incorrectly removed a & when it was unsafe to do so. Here is an example:

    /* Original code */
    .a .b {
      & .b:not(& .c) {
        color: red;
      }
    }
    /* Old output (with --minify) */
    .a .b{.b:not(& .c){color:red}}
    /* New output (with --minify) */
    .a .b{& .b:not(& .c){color:red}}

    This should match <span class="a"><span class="b"><span class="b">yes</span></span></span> but not <span class="a"><span class="b">no</span></span>. The old output incorrectly matched both.

  • Avoid overwriting input files without --allow-overwrite (#4484)

    For example: esbuild input.js --outfile=input.js tells esbuild to overwrite input.js with the output of running esbuild on it. This was supposed to already be prevented by default, but it accidentally regressed in version 0.17.0 and apparently didn't have any test coverage. The error message was being printed but the input file was still being overwritten. Oops.

    This release puts the original behavior back. With this release, esbuild should now actually avoid overwriting input files unless --allow-overwrite is explicitly present. This is done by not writing out any files when a build error is encountered.

  • Fix incorrect code generated when using top-level await (#4498)

    Previously esbuild could generate code containing a syntax error in complex scenarios involving top-level await used in a dependency cycle. The problem was a missing async on one or more module wrapper closures. With this release, esbuild now uses a fixed-point iteration algorithm to correctly annotate all dependencies in the cycle as needing an async module wrapper.

  • Fix a minification bug with lowered logical assignment operators (#4508)

    This release fixes a bug that could cause esbuild to generate incorrect code for logical assignment operators when lowering them to an older target environment. Specifically the lowering process requires duplicating the left-hand side, but esbuild incorrectly failed to count the duplicate as a new usage when the left-hand side is an identifier. That then caused the minifier to believe that the left-hand side was only used once and could attempt to incorrectly inline an initializer into the first usage. This bug has now been fixed:

    // Original code
    function foo() {
      let x

... (truncated)

Commits
  • 609683d publish 0.28.2 to npm
  • 11b1fe4 add to release notes
  • ab50d91 css: fix green/blue channel swap in oklch gamut mapping (#4488)
  • 04627b6 fix #4498: async TLA checks need a worklist
  • 5c15177 disable gopls in the go folder
  • fc2ee9b css: adjust parser to allow --foo: {...}
  • 209db54 release notes for css nesting bugfix
  • c625d31 fix #4497: preserve nested ampersands during minification (#4500)
  • 34474e2 better isolation of current part in js parser
  • 07f6e8c fix #4507: import assignment tree-shaking bug
  • Additional commits viewable in compare view


Note

Overview
Updates evals/package-lock.json only: esbuild and every @esbuild/* platform package move from 0.28.0 to 0.28.2 (pulled in transitively, e.g. via tsx’s esbuild range). No evals/package.json change.

The lockfile also refreshes npm metadata—several transitive packages (MCP SDK, Express stack, @anthropic-ai/sdk, zod, etc.) no longer carry dev: true, and @types/json-schema appears as a peer entry. That reflects install/deduping, not new direct dependencies.

esbuild 0.28.2 is a patch release with bundler/minifier fixes (tree-shaking, CSS & minification, TLA cycles, overwrite guard).

Reviewed by Cursor Bugbot for commit 86b3062. Bugbot is set up for automated code reviews on this repo. Configure here.

@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels Jun 13, 2026
@dependabot
dependabot Bot requested a review from a team as a code owner June 13, 2026 01:34
@dependabot dependabot Bot added dependencies Pull requests that update a dependency file javascript Pull requests that update javascript code labels Jun 13, 2026
@github-actions

github-actions Bot commented Jun 13, 2026

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Skill eval results

Skill Before After Δ
agentcontrol/configs-create 100/100 (4/4) 0/100 (0/4) -100
agentcontrol/configs-update 80/100 (4/5) 0/100 (0/5) -80
agentcontrol/configs-variations 80/100 (4/5) 0/100 (0/5) -80
agentcontrol/tools 75/100 (3/4) 0/100 (0/4) -75
feature-flags/flag-and-release-change - 0/100 (0/4) new
feature-flags/flag-release - 0/100 (0/5) new
feature-flags/launchdarkly-flag-command - 0/100 (0/3) new
feature-flags/launchdarkly-flag-create 100/100 (3/3) 0/100 (0/4) -100
feature-flags/launchdarkly-flag-drift - 0/100 (0/4) new
feature-flags/should-flag-change - 0/100 (0/17) new

Only suites whose source actually changed since their last recorded score were re-run. Soft-failing while we stabilise the baseline.

@pkaeding

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@dependabot rebase

Bumps [esbuild](https://github.com/evanw/esbuild) from 0.28.0 to 0.28.2.
- [Release notes](https://github.com/evanw/esbuild/releases)
- [Changelog](https://github.com/evanw/esbuild/blob/main/CHANGELOG.md)
- [Commits](evanw/esbuild@v0.28.0...v0.28.2)

---
updated-dependencies:
- dependency-name: esbuild
  dependency-version: 0.28.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot changed the title chore(deps-dev): bump esbuild from 0.28.0 to 0.28.1 in /evals chore(deps-dev): bump esbuild from 0.28.0 to 0.28.2 in /evals Aug 14, 2026
@dependabot
dependabot Bot force-pushed the dependabot/npm_and_yarn/evals/esbuild-0.28.1 branch from 383007e to 86b3062 Compare August 14, 2026 20:50
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