Update dependency prettier to v3.9.9 by renovate[bot] · Pull Request #2317 · RocketSurgeonsGuild/Testing

renovate · 2026-09-24T04:08:39Z

This PR contains the following updates:

Package	Type	Update	Change
prettier	tools	minor	`3.8.4` → `3.9.9`

Release Notes

prettier/prettier (prettier)

`v3.9.9`

Compare Source

diff

Markdown: Fix text with `$` been incorrectly parsed as math syntax (#20140 by @fisker)

<!-- Input -->
**Uses $FOO** from `a.sh` and `b.sh`, plus `$BAR` from `c.sh`, before anything else runs here.

<!-- Prettier 3.9.8 -->
**Uses $FOO** from `a.sh` and `b.sh`, plus `$BAR`from`c.sh`, before anything else runs here.

<!-- Prettier 3.9.9 -->
**Uses $FOO** from `a.sh` and `b.sh`, plus `$BAR` from `c.sh`, before anything else runs here.

`v3.9.8`

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diff

Markdown: Don't let Liquid objects interrupt paragraphs (#20087 by @seiyab)

<!-- Input -->
If `module` is not a [`WebAssembly.Module`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module) object instance, a
{{jsxref("TypeError")}} is thrown.

<!-- Prettier 3.9.7 -->
If `module` is not a [`WebAssembly.Module`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module) object instance, a

{{jsxref("TypeError")}} is thrown.

<!-- Prettier 3.9.8 -->
If `module` is not a [`WebAssembly.Module`](/en-US/docs/WebAssembly/Reference/JavaScript_interface/Module) object instance, a
{{jsxref("TypeError")}} is thrown.

`v3.9.7`

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diff

Markdown: Prevent indentation drift in list-item code blocks (#19647, #19990 by @Austin1serb, @giaBaoJS)

<!-- Input -->
- [x] short first line.

      second paragraph at six spaces that wraps
      onto another line here.

<!-- Prettier 3.9.6 -->
- [x] short first line.

      second paragraph at six spaces that wraps
          onto another line here.

<!-- Prettier 3.9.7 -->
- [x] short first line.

      second paragraph at six spaces that wraps
      onto another line here.

JavaScript: Fix embedded template literal idempotency (#19725 by @fisker)

// Input
const foo = html`
            <div>${getText({
            value,
            })}</div>
`;

// Prettier 3.9.6 (first format)
const foo = html`
  <div>
    ${getText({
              value,
            })}
  </div>
`;

// Prettier 3.9.6 (second format)
const foo = html`
  <div>
    ${getText({
      value,
    })}
  </div>
`;

// Prettier 3.9.7
const foo = html`
  <div>
    ${getText({
      value,
    })}
  </div>
`;

Markdown: Preserve Liquid blocks after Markdown tables (#19730 by @wanxiankai, @seiyab)

<!-- Input -->
| Argument | Type |
| -------- | ---- |
{% set default_params = {
    "model": ["str"],
} %}

<!-- Prettier 3.9.6 -->
| Argument                  | Type |
| ------------------------- | ---- |
| {% set default_params = { |

    "model": ["str"],

} %}

<!-- Prettier 3.9.7 -->
| Argument | Type |
| -------- | ---- |
{% set default_params = {
    "model": ["str"],
} %}

Markdown: Preserve single tildes in Markdown (#19739 by @lazerg)

Since 3.9.0, single-tilde spans like H~2~O were rewritten to double tildes, turning subscript syntax into strike-through. Only double tildes are treated that way now, matching GitHub.

<!-- Input -->
H~2~O

<!-- Prettier 3.9.6 -->
H~~2~~O

<!-- Prettier 3.9.7 -->
H~2~O

Markdown: Fix Markdown blockquote containing `>` characters (#19802 by @seiyab)

<!-- Input -->
> **test**\>

<!-- Prettier 3.9.6 -->
> **test**>\>

<!-- Prettier 3.9.7 -->
> **test**\>

Markdown: Strip blockquote markers from a setext heading's continuation lines (#19878 by @Kjubikstronk)

A setext heading spanning multiple lines inside a blockquote kept the > marker of its continuation lines as literal text.

<!-- Input -->
> Multi
> Line
> ===

<!-- Prettier 3.9.6 -->
> Multi > Line
> ===

<!-- Prettier 3.9.7 -->
> Multi
> Line
> ===

Markdown: Fix HTML block indentation drift in markdown list items (#19987 by @lazerg)

<!-- Input -->
1. Enable images:

    <p align="center">
      <img alt="example">
    </p>

<!-- Prettier 3.9.6 (--tab-width=4) -->
1. Enable images:

     <p align="center">
       <img alt="example">
     </p>

<!-- Prettier 3.9.7 (--tab-width=4) -->
1. Enable images:

    <p align="center">
      <img alt="example">
    </p>

Angular: Support `@boundary` error boundaries (#20014 by @Yahiro025)

<!-- Input -->
@boundary {
<complex-chart [data]="data"/>
}
@error (let err) {
<p>{{err.message}}</p>
}

<!-- Prettier 3.9.6 -->
SyntaxError: Unexpected character "EOF" (Do you have an unescaped "{" in your template? Use "{{ '{' }}") to escape it.) (6:1)

<!-- Prettier 3.9.7 -->
@boundary {
  <complex-chart [data]="data" />
} @error (let err) {
  <p>{{ err.message }}</p>
}

`v3.9.6`

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diff

TypeScript: Preserve quotes for methods named `new` (#19621 by @kovsu)

// Input
interface Container {
  "new"(id: string): number;
}

// Prettier 3.9.5
interface Container {
  new(id: string): number;
}

// Prettier 3.9.6
interface Container {
  "new"(id: string): number;
}

TypeScript: Support `import defer` (#19624, #19675 by @fisker)

// Input
import defer * as foo from "foo";

// Prettier 3.9.5
import * as foo from "foo";

// Prettier 3.9.6
import defer * as foo from "foo";

JavaScript: Added a new official plugin `@prettier/plugin-yuku` (#19628, #19629 by @fisker)

@prettier/plugin-yuku is powered by Yuku (A high-performance JavaScript/TypeScript compiler toolchain written in Zig).

This plugin includes two new parsers: yuku (JavaScript syntax) and yuku-ts (TypeScript syntax).

To use this plugin:

Install the plugin:

yarn add --dev prettier @prettier/plugin-yuku

Add it to your .prettierrc:
```
plugins:
  - "@prettier/plugin-yuku"
```

Due to package size limitations, this plugin is not bundled with the main prettier package and must be installed separately.

For more information, check the package homepage.

Big thanks to @arshad-yaseen for his excellent work.

`v3.9.5`

Compare Source

diff

Markdown: Cap ordered list mark at 999,999,999 (#19351 by @tats-u)

CommonMark parsers only support ordered list item numbers up to 999,999,999.

With this change, Prettier now caps the ordered list item number at 999,999,999 to ensure that the output is correctly parsed as an ordered list by CommonMark parsers. Numbers larger than 999,999,999 are not parsed as list item numbers and are left unchanged in the output:

<!-- Input -->
999999998. text
999999998. text
999999998. text
999999998. text

1234567890123456789012) text

<!-- Prettier 3.9.4 -->
999999998. text
999999999. text
1000000000. text
1000000001. text

1234567890123456789012) text

<!-- Prettier 3.9.5 -->
999999998. text
999999999. text
999999999. text
999999999. text

1234567890123456789012) text

Markdown: Avoid corrupting empty link with title (#19487 by @andersk)

Do not remove <> from an inline link or image with an empty URL and a title, as this removal would change its interpretation.

<!-- Input -->
[link](<> "title")

<!-- Prettier 3.9.4 -->
[link]( "title")

<!-- Prettier 3.9.5 -->
[link](<> "title")

Less: Remove extra spaces after `[` in map lookups (#19503 by @kovsu)

// Input
.foo {
  color: #theme[ primary];
  color: #theme[@name];
  color: #theme[@@name];
}

// Prettier 3.9.4
.foo {
  color: #theme[ primary];
  color: #theme[ @name];
  color: #theme[ @@name];
}

// Prettier 3.9.5
.foo {
  color: #theme[primary];
  color: #theme[@name];
  color: #theme[@@name];
}

CSS: Prevent addition space in `type()` with `+` (#19516 by @bigandy)

This fixes the addition space before + in CSS type() declaration. For example type(<number>+) was being converted into type(<number> +) which is invalid CSS and does not work.

/* Input */
div {
  border-radius: attr(br type(<length>+));
}

/* Prettier 3.9.4 */
div {
  border-radius: attr(br type(<length> +));
}

/* Prettier 3.9.5 */
div {
  border-radius: attr(br type(<length>+));
}

Less: Remove spaces between merge markers and colons (#19517 by @kovsu)

// Input
a {
  box-shadow  +  : 0 0 1px #&#8203;000;
}

// Prettier 3.9.4
a {
  box-shadow+  : 0 0 1px #&#8203;000;
}

// Prettier 3.9.5
a {
  box-shadow+: 0 0 1px #&#8203;000;
}

Markdown: Preserve wiki links with aliases (#19527 by @kovsu)

<!-- Input -->
[[Foo:Bar]]

<!-- Prettier 3.9.4 -->
[[Foo]]

<!-- Prettier 3.9.5 -->
[[Foo:Bar]]

TypeScript: Fix comments being dropped on shorthand `type` import/export specifiers (#19565 by @kirkwaiblinger)

// Input
export { type /* comment */ T } from "foo";
import { type /* comment */ T } from "foo";

// Prettier 3.9.4
Error: Comment "comment" was not printed. Please report this error!

// Prettier 3.9.5
export { type /* comment */ T } from "foo";
import { type /* comment */ T } from "foo";

Miscellaneous: Preserving comments' `placement` property (#19567 by @Janther)

Prettier@3.9.0 deleted an undocumented property on comments, which was already used by plugins, comment.placement is now available again after comment attach.

Flow: Stop enforcing empty module declaration to break (#19568 by @fisker)

// Input
declare module "foo" {}

// Prettier 3.9.4
declare module "foo" {
}

// Prettier 3.9.5
declare module "foo" {}

Angular: Support expression for exhaustive typechecking (#19571 by @fisker)

<!-- Input -->
@switch (state.mode) {
  @default never(state);
}

<!-- Prettier 3.9.4 -->
@switch (state.mode) {
  @default never;
}

<!-- Prettier 3.9.5 -->
@switch (state.mode) {
  @default never(state);
}

TypeScript: Ignore comments inside mapped type when checking type parameter comments (#19572 by @fisker)

// Input
foo<{
  // comment
  [key in keyof Foo]: number
}>();

// Prettier 3.9.4
foo<
  {
    // comment
    [key in keyof Foo]: number;
  }
>();

// Prettier 3.9.5
foo<{
  // comment
  [key in keyof Foo]: number;
}>();

Less: Fix adjacent block comments being corrupted (#19574 by @kovsu)

// Input
/* a *//* b */
/* a */* {
  color: red;
}

// Prettier 3.9.4
/* a */
/* b */
/* a * {
  color: red;
}

// Prettier 3.9.5
/* a */ /* b */
/* a */
* {
  color: red;
}

JavaScript: Handle dangling comments in `SwitchStatement` (#19581 by @fisker)

// Input
switch (foo) {
 // comment
}

// Prettier 3.9.4
switch (
  foo
  // comment
) {
}

// Prettier 3.9.5
switch (foo) {
  // comment
}

TypeScript: Remove space in comment-only object type (#19583 by @fisker)

// Input
var foo = {
  /* comment */
};
type Foo = {
  /* comment */
};

// Prettier 3.9.4
var foo = {/* comment */};
type Foo = { /* comment */ };

// Prettier 3.9.5
var foo = {/* comment */};
type Foo = {/* comment */};

`v3.9.4`

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diff

Angular: Format `@content(name)` -> `@content (name)` to align with other block syntax (#19499 by @fisker)

<!-- Input -->
<FancyButton [label]="title">
  @content (icon) {
    <span>Icon!</span>
  }
  @content (description) {
    <span>Description text</span>
  }
  <span>Other children</span>
</FancyButton>

<!-- Prettier 3.9.3 -->
<FancyButton [label]="title">
  @content(icon) {
    <span>Icon!</span>
  }
  @content(description) {
    <span>Description text</span>
  }
  <span>Other children</span>
</FancyButton>

<!-- Prettier 3.9.4 -->
<FancyButton [label]="title">
  @content (icon) {
    <span>Icon!</span>
  }
  @content (description) {
    <span>Description text</span>
  }
  <span>Other children</span>
</FancyButton>

`v3.9.3`

Compare Source

diff

Markdown: Fix unexpected removal of characters in liquid syntax (#19489 by @seiyab)

// Input
<!-- Input -->
{{ page.title
}} text

<!-- Prettier 3.9.1 -->
{{ page.title
 text

<!-- Prettier 3.9.3 -->
{{ page.title
}} text

TypeScript: Allow decorators to be used with declare on class fields (#19492 by @evoactivity)

Extensively used within the Ember ecosystem, decorators with declare on class fields will ignore the babel parser error and allow Prettier to format the code without breaking it.

// Input
export default class ProjectStatusComponent extends Component<ProjectStatusSig> {
  @service declare server: ServerService;
}

// Prettier 3.9.1
// SyntaxError: Decorators can't be used with a declare field. (2:3)
//  1 | export default class ProjectStatusComponent extends Component<ProjectStatusSig> {
//> 2 |   @service declare server: ServerService;
//    |   ^
//  3 | }

// Prettier 3.9.3
export default class ProjectStatusComponent extends Component<ProjectStatusSig> {
  @service declare server: ServerService;
}

`v3.9.1`

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diff

CLI: Fix ignored file has been cached incorrectly (#19483 by @kovsu)

Bug details #18016

`v3.9.0`

Compare Source

diff

🔗 Release Notes

`v3.8.5`

Compare Source

diff

Flow: Support `readonly` as a variance annotation (#19022 by @marcoww6)

Flow now accepts readonly as a property variance annotation, equivalent to + (covariant/read-only).

// Input
type T = {
  readonly foo: string,
};

// Prettier 3.8.4
SyntaxError

// Prettier 3.8.5
type T = {
  readonly foo: string,
};

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codacy-production · 2026-09-24T04:15:13Z

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renovate Bot added the 📦 dependencies Pull requests that update a dependency file label Sep 24, 2026

github-actions Bot added this to the v10.0.7 milestone Sep 24, 2026

Update dependency prettier to v3.9.9

98142ec

renovate Bot force-pushed the renovate/prettier-3.x branch from de35c7e to 98142ec Compare September 24, 2026 22:46

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Update dependency prettier to v3.9.9 - #2317

Update dependency prettier to v3.9.9#2317
renovate[bot] wants to merge 2 commits into
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renovate/prettier-3.x

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renovate Bot commented Sep 24, 2026

Release Notes

Markdown: Fix text with $ been incorrectly parsed as math syntax (#​20140 by @​fisker)

Markdown: Don't let Liquid objects interrupt paragraphs (#​20087 by @​seiyab)

Markdown: Prevent indentation drift in list-item code blocks (#​19647, #​19990 by @​Austin1serb, @​giaBaoJS)

JavaScript: Fix embedded template literal idempotency (#​19725 by @​fisker)

Markdown: Preserve Liquid blocks after Markdown tables (#​19730 by @​wanxiankai, @​seiyab)

Markdown: Preserve single tildes in Markdown (#​19739 by @​lazerg)

Markdown: Fix Markdown blockquote containing > characters (#​19802 by @​seiyab)

Markdown: Strip blockquote markers from a setext heading's continuation lines (#​19878 by @​Kjubikstronk)

Markdown: Fix HTML block indentation drift in markdown list items (#​19987 by @​lazerg)

Angular: Support @boundary error boundaries (#​20014 by @​Yahiro025)

TypeScript: Preserve quotes for methods named new (#​19621 by @​kovsu)

TypeScript: Support import defer (#​19624, #​19675 by @​fisker)

JavaScript: Added a new official plugin @prettier/plugin-yuku (#​19628, #​19629 by @​fisker)

Markdown: Cap ordered list mark at 999,999,999 (#​19351 by @​tats-u)

Markdown: Avoid corrupting empty link with title (#​19487 by @​andersk)

Less: Remove extra spaces after [ in map lookups (#​19503 by @​kovsu)

CSS: Prevent addition space in type() with + (#​19516 by @​bigandy)

Less: Remove spaces between merge markers and colons (#​19517 by @​kovsu)

Markdown: Preserve wiki links with aliases (#​19527 by @​kovsu)

TypeScript: Fix comments being dropped on shorthand type import/export specifiers (#​19565 by @​kirkwaiblinger)

Miscellaneous: Preserving comments' placement property (#​19567 by @​Janther)

Flow: Stop enforcing empty module declaration to break (#​19568 by @​fisker)

Angular: Support expression for exhaustive typechecking (#​19571 by @​fisker)

TypeScript: Ignore comments inside mapped type when checking type parameter comments (#​19572 by @​fisker)

Less: Fix adjacent block comments being corrupted (#​19574 by @​kovsu)

JavaScript: Handle dangling comments in SwitchStatement (#​19581 by @​fisker)

TypeScript: Remove space in comment-only object type (#​19583 by @​fisker)

Angular: Format @content(name) -> @content (name) to align with other block syntax (#​19499 by @​fisker)

Markdown: Fix unexpected removal of characters in liquid syntax (#​19489 by @​seiyab)

TypeScript: Allow decorators to be used with declare on class fields (#​19492 by @​evoactivity)

CLI: Fix ignored file has been cached incorrectly (#​19483 by @​kovsu)

Flow: Support readonly as a variance annotation (#​19022 by @​marcoww6)

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Markdown: Fix text with `$` been incorrectly parsed as math syntax (#20140 by @fisker)

Markdown: Don't let Liquid objects interrupt paragraphs (#20087 by @seiyab)

Markdown: Prevent indentation drift in list-item code blocks (#19647, #19990 by @Austin1serb, @giaBaoJS)

JavaScript: Fix embedded template literal idempotency (#19725 by @fisker)

Markdown: Preserve Liquid blocks after Markdown tables (#19730 by @wanxiankai, @seiyab)

Markdown: Preserve single tildes in Markdown (#19739 by @lazerg)

Markdown: Fix Markdown blockquote containing `>` characters (#19802 by @seiyab)

Markdown: Strip blockquote markers from a setext heading's continuation lines (#19878 by @Kjubikstronk)

Markdown: Fix HTML block indentation drift in markdown list items (#19987 by @lazerg)

Angular: Support `@boundary` error boundaries (#20014 by @Yahiro025)

TypeScript: Preserve quotes for methods named `new` (#19621 by @kovsu)

TypeScript: Support `import defer` (#19624, #19675 by @fisker)

JavaScript: Added a new official plugin `@prettier/plugin-yuku` (#19628, #19629 by @fisker)

Markdown: Cap ordered list mark at 999,999,999 (#19351 by @tats-u)

Markdown: Avoid corrupting empty link with title (#19487 by @andersk)

Less: Remove extra spaces after `[` in map lookups (#19503 by @kovsu)

CSS: Prevent addition space in `type()` with `+` (#19516 by @bigandy)

Less: Remove spaces between merge markers and colons (#19517 by @kovsu)

Markdown: Preserve wiki links with aliases (#19527 by @kovsu)

TypeScript: Fix comments being dropped on shorthand `type` import/export specifiers (#19565 by @kirkwaiblinger)

Miscellaneous: Preserving comments' `placement` property (#19567 by @Janther)

Flow: Stop enforcing empty module declaration to break (#19568 by @fisker)

Angular: Support expression for exhaustive typechecking (#19571 by @fisker)

TypeScript: Ignore comments inside mapped type when checking type parameter comments (#19572 by @fisker)

Less: Fix adjacent block comments being corrupted (#19574 by @kovsu)

JavaScript: Handle dangling comments in `SwitchStatement` (#19581 by @fisker)

TypeScript: Remove space in comment-only object type (#19583 by @fisker)

Angular: Format `@content(name)` -> `@content (name)` to align with other block syntax (#19499 by @fisker)

Markdown: Fix unexpected removal of characters in liquid syntax (#19489 by @seiyab)

TypeScript: Allow decorators to be used with declare on class fields (#19492 by @evoactivity)

CLI: Fix ignored file has been cached incorrectly (#19483 by @kovsu)

Flow: Support `readonly` as a variance annotation (#19022 by @marcoww6)

codacy-production Bot commented Sep 24, 2026 •

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