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Changes to PostCSS Nesting

12.1.3

May 11, 2024

12.1.2

April 21, 2024

  • Edition 2024-02:
    • Do not rewrite selectors for declarations in conditional rules to a form with :is()

This will work:

::before, ::after {
	color: blue;

	@media screen { color: cyan; }
}

This still wont work:

::before, ::after {
	color: blue;

	&:hover { color: cyan; }
}

12.1.1

March 31, 2024

12.1.0

March 6, 2024

  • Add the edition plugin option to control which CSS nesting specification version should be used. The default is 2021 but you can also set it to the newer 2024-02 edition to have more modern behavior.

12.0.4

February 26, 2024

  • Fix order of final CSS with complex usage of both nesting and mixins, by @pciarach

12.0.3

February 19, 2024

12.0.2

December 15, 2023

12.0.1

August 5, 2023

  • Fix nesting of @starting-style rules

12.0.0

July 3, 2023

11.3.0

June 14, 2023

  • Add support for nested selectors that that begin with a letter
  • Add warning when using the deprecated @nest rule
    • you can silence this warning with a new silenceAtNestWarning plugin option
    • you can migrate your code to the latest syntax with our Stylelint Plugin

11.2.2

March 25, 2023

  • Improved: support for mixins

11.2.1

February 16, 2023

  • Skip nested rules that have a selector that begins with a letter
  • Better warning when nested rules have a selector that begins with a letter

11.2.0

February 13, 2023

  • Added: support for & at the root
  • Improved: support for mixins

11.1.0

January 31, 2023

  • Implement latest specification
    • relative selector syntax
    • @nest is obsolete, all selectors can be written without it (sometimes you will need :is())
    • allow declarations after nested rules.

⚠️ We advice everyone to migrate their codebase now to nested CSS without @nest.
Future versions of this plugin will warn and then error on @nest.

11.0.1

January 28, 2023

  • Improve types declaration in package.json

11.0.0

January 24, 2023

  • Updated: Support for Node v14+ (major).
  • Fix: Do not throw when a selector is invalid, show a warning instead.
  • Removed: Support for Deno (breaking)

10.2.0

September 14, 2022

  • Added: TypeScript typings

10.1.10

June 30, 2022

  • Partially revert the changes to pseudo element selectors from 10.1.9.
.anything::before {
	@nest .something_else > & {
		order: 1;
	}
}

/* becomes */

- .something_else > :is(.anything::before) { /* 10.1.9 */
+ .something_else > .anything::before { /* previous and restored behavior */
		order: 1;
}

The exact behavior of this pattern is unspecified and might change in the future. We are reverting to the previous behavior until the specification is clarified.

10.1.9

June 23, 2022

  • Fix selector order with any pseudo element.
  • Fix semicolons being removed #497.

10.1.8

June 4, 2022

  • Update @csstools/selector-specificity (major)

10.1.7

May 20, 2022

  • Add tentative support for @layer. The actual behavior is poorly defined and may change in the future. Use with caution.

10.1.6

May 17, 2022

  • Fix selector order with :before and other pseudo elements.

10.1.5

May 11, 2022

  • Use @csstools/selector-specificity for specificity calculations.

10.1.4

April 4, 2022

  • Improved : compound selector order with pseudo elements
  • Improved : selector specificity calculation.

10.1.3

March 4, 2022

  • Avoid creating duplicate selectors containing only comments.
.alpha {
	/* loose comment */
	& .beta {
		order: 1;
	}
}

/* becomes */

- .alpha {
-   /* loose comment */
- }
+ /* loose comment */
.alpha .beta {
	order: 1;
}

10.1.2

January 12, 2022

  • Improved : selector specificity calculation

10.1.1

January 2, 2022

  • Removed Sourcemaps from package tarball.
  • Moved CLI to CLI Package. See announcement.

10.1.0

December 22, 2021

  • Added: noIsPseudoSelector plugin option.
  • Changed: :is() pseudo is now avoided as much as possible by default.
  • Updated: documentation

more info on noIsPseudoSelector

postcssNesting({
	noIsPseudoSelector: true
})

10.0.3

December 13, 2021

  • Updated: documentation

10.0.2

November 18, 2021

  • Fixed: Support for Deno. Ensuring we pack mod.js so it can be accessible by CDNs.

10.0.1

November 17, 2021

  • Removed: Support for allowDeclarationsAfterNestedRules.

We've realised that enforcing this rule from the spec was going to be problematic in the long run given how plugins work and the whole ecosystem around mixins and other features. Treating this as a patch given that this was introduced in the previous version and was starting to break projects that were using other features.

10.0.0

November 16, 2021

  • Added: Support for allowDeclarationsAfterNestedRules to deviate from spec.

  • Added: .npmrc file.

  • Updated: Aligning completely with the spec updates.

  • Updated: esbuild to 0.13.12 (minor)

  • Removed: Support for PostCSS 7

9.0.0

October 27, 2021

  • Added: Support for Deno
  • Fixed: Issue with PostCSS 8 compatibility using the RuleExit listener

8.0.1

May 1, 2021

  • Fixed: Compatibility issue with CommonJS.

8.0.0

April 26, 2021

  • Updated: Support for PostCSS 8+.
  • Updated: Support for Node v12+.
  • Updated: Support for the @container at-rule.

7.0.1

July 29, 2018

  • Fixed: Non-breaking issue with rules being unnecessarily split

7.0.0

September 17, 2018

  • Updated: Support for PostCSS v7+
  • Updated: Support for Node v6+

In a comment, a CSSWG member expressed interest in handling nested @media while handling selector nesting. Since the specification has yet to be added to the official CSSWG repository, nested at-rule deprecation is further delayed.

6.0.0

June 9, 2018

  • Deprecated: Nested at-rules like @media will no longer work in 7.0.0
  • Refactored code to improve efficiency

5.0.0

March 24, 2018

  • Refactored code to use Imports babel-transformed for Node v4 compatibility

4.2.1

September 19, 2017

  • Updated: Exposing the transform function as its own for postcss-extend

4.2.0

September 18, 2017

  • Added: Reduced splitting of rules

4.1.0

August 19, 2017

  • Added: Mutation-safe walk method
  • Improved: Complex selector validity testing
  • Thanks: A special thanks to @JLHwung for these improvements

4.0.1

May 22, 2017

  • Improved: Selector validity testing

4.0.0

May 20, 2017

  • Changed: Transform only compliant nesting
  • Added: Preserve more raws formatting

3.0.0

May 8, 2017

  • Added: Node 4.x support
  • Added: PostCSS 6 support
  • Added: Preserved ordering
  • Removed: Node 0.12 support

2.3.1

March 16, 2016

  • Updated: Allow any direct nesting that follows the syntactic constraints
  • Updated: PostCSS 5.0.6
  • Updated: Tests
  • Updated: Dependencies
  • Updated: Project configuration

2.3.0

February 20, 2016

  • Updated: JavaScript formatting, linting, tests, and documentation
  • Updated: Properly concatenate at-rules with or expressions
  • Updated: Update internal plugin name to postcss-nesting

2.2.0

January 30, 2016

  • Added: Nesting of all at-rules
  • Updated: Direct nesting order maintains order
  • Updated: Tests and documentation

2.1.1

January 3, 2016

  • Updated: Project conventions

2.1.0

January 3, 2016

  • Added: Support for valid direct nesting

2.0.6

October 15, 2015

  • Fixed: Issue with new PostCSS rules

2.0.5

October 12, 2015

  • Updated: Nested rules source map to the parent rule
  • Updated: PostCSS 5.0.9
  • Updated: Tests and documentation
  • Updated: Project configuration

2.0.4

September 23, 2015

  • Updated: Map source raws

2.0.3

September 22, 2015

  • Updated: Refactored plugin
  • Updated: Tests
  • Updated: PostCSS 5.0.6

2.0.2

September 16, 2015

  • Fixed: Issue where the new rule’s children were not mapped to the parent internally

2.0.1

September 16, 2015

  • Fixed: Issue where a @nest rule followed by another bubbling at-rule would not bubble
  • Added: CONTRIBUTING.md

2.0.0

September 16, 2015

  • Added: Requirement of & per the specification
  • Added: New prefix option
  • Added: @document and @supports as bubbles
  • Updated: Documentation

1.0.0

September 15, 2015

  • Added: New @nest at-rule syntax
  • Updated: PostCSS 5
  • Removed: Old inner bracket syntax

0.1.0

June 17, 2015

  • Added: Initial release