Sourced fromesbuild's releases.

v0.25.10

• Fix a panic in a minification edge case (#4287)

  This release fixes a panic due to a null pointer that could happen when esbuild inlines a doubly-nested identity function and the final result is empty. It was fixed by emitting the valueundefined in this case, which avoids the panic. This case must be rare since it hasn't come up until now. Here is an example of code that previously triggered the panic (which only happened when minifying):

  functionidentity(x){returnx}identity({y:identity(123)})

• Fix@supports nested inside pseudo-element (#4265)

  When transforming nested CSS to non-nested CSS, esbuild is supposed to filter out pseudo-elements such as::placeholder for correctness. TheCSS nesting specification says the following:

  The nesting selector cannot represent pseudo-elements (identical to the behavior of the ':is()' pseudo-class). We’d like to relax this restriction, but need to do so simultaneously for both ':is()' and '&', since they’re intentionally built on the same underlying mechanisms.

  However, it seems like this behavior is different for nested at-rules such as@supports, which do work with pseudo-elements. So this release modifies esbuild's behavior to now take that into account:

  /* Original code */::placeholder {color: red;body& {color: green }@supports (color: blue) {color: blue }}/* Old output (with --supported:nesting=false) */::placeholder {color: red;}body:is() {color: green;}@​supports (color: blue) {{color: blue;}}/* New output (with --supported:nesting=false) */::placeholder {color: red;}body:is() {color: green;}@​supports (color: blue) {::placeholder {color: blue;}

... (truncated)

Sourced fromesbuild's changelog.

Changelog: 2024

This changelog documents all esbuild versions published in the year 2024 (versions 0.19.12 through 0.24.2).

0.24.2

• Fix regression with--define andimport.meta (#4010,#4012,#4013)

  The previous change in version 0.24.1 to use a more expression-like parser fordefine values to allow quoted property names introduced a regression that removed the ability to use--define:import.meta=.... Even thoughimport is normally a keyword that can't be used as an identifier, ES modules special-case theimport.meta expression to behave like an identifier anyway. This change fixes the regression.

  This fix was contributed by@​sapphi-red.

0.24.1

• Allowes2024 as a target intsconfig.json (#4004)

  TypeScript recentlyaddedes2024 as a compilation target, so esbuild now supports this in thetarget field oftsconfig.json files, such as in the following configuration file:

  {"compilerOptions": {"target":"ES2024"  }}

  As a reminder, the only thing that esbuild uses this field for is determining whether or not to use legacy TypeScript behavior for class fields. You can read more inthe documentation.

  This fix was contributed by@​billyjanitsch.

• Allow automatic semicolon insertion afterget/set

  This change fixes a grammar bug in the parser that incorrectly treated the following code as a syntax error:

  classFoo{get*x(){}set*y(){}}

  The above code will be considered valid starting with this release. This change to esbuild follows asimilar change to TypeScript which will allow this syntax starting with TypeScript 5.7.

• Allow quoted property names in--define and--pure (#4008)

  Thedefine andpure API options now accept identifier expressions containing quoted property names. Previously all identifiers in the identifier expression had to be bare identifiers. This change now makes--define and--pure consistent with--global-name, which already supported quoted property names. For example, the following is now possible:

... (truncated)

• d6b668f publish 0.25.10 to npm
• 5088c19 refactor: use strings.Builder (#4290)
• 755da31 runmake update-compat-table
• a1d9c86 fix#4287: marked the wrong issue as fixed
• 73a0b2a fix#4286: minifier panic due to identity function
• 134dadf fix#4265:@supports nested inside::pseudo
• 195e05c publish 0.25.9 to npm
• 3dac33f fix#3131, fix#3663: yarnpnp + windows + D drive
• 0f2c5c8 mock fs now supports multiple volumes on windows
• 100a51e split out yarnpnp snapshot tests
• Additional commits viewable incompare view

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