postcss-selector-parser breaking changes

7.1.2

1 breaking change, first published June 9, 2026.

• Signature changed Base.toString
  Was toString(): string; now toString(options?: StringifyOptions): string. npmjs.com

6.1.5

1 breaking change, first published October 19, 2026.

• Configuration changed
  The 6.x line now receives only security fixes, with no features, other bug fixes or type changes. Users who want continued development should move to 7.x; 6.1.5 is published under the legacy-v6 dist-tag so plain npm install resolves to 7.x. github.com

6.1.3

4 breaking changes, first published June 11, 2026.

• Behavior changed insertAfter
  Inserting nodes while iterating a container with each now changes the next callback position, so code relying on the old visiting order must be updated. github.com
• Behavior changed insertBefore
  Inserting nodes while iterating a container with each now changes the next callback position, so code relying on the old visiting order must be updated. github.com
• Behavior changed prepend
  Inserting nodes while iterating a container with each now changes the next callback position, so code relying on the old visiting order must be updated. github.com
• Signature changed Base.toString
  Was toString(): string; now toString(options?: StringifyOptions): string. npmjs.com

6.1.1

3 breaking changes, first published July 11, 2024.

• Signature changed id
  Was function id(opts: any): any; now function id(opts: any): Identifier. npmjs.com
• Signature changed nesting
  Was function nesting(opts: any): any; now function nesting(opts?: any): Nesting. npmjs.com
• Signature changed universal
  Was function universal(opts?: NamespaceOptions): any; now function universal(opts?: NamespaceOptions): Universal. npmjs.com

6.0.16

2 breaking changes, first published March 13, 2024.

• Signature changed Container.each
  Was each(callback: (node: Child) => boolean | void): boolean | undefined; now each(callback: (node: Child, index: number) => boolean | void): boolean | undefined. npmjs.com
• Signature changed Container.walk
  Was walk(callback: (node: Node) => boolean | void): boolean | undefined; now walk(callback: (node: Node, index: number) => boolean | void): boolean | undefined. npmjs.com

6.0.15

2 breaking changes, first published December 29, 2023.

• Signature changed Base.next
  Was next(): Node; now next(): Node | undefined. npmjs.com
• Signature changed Base.prev
  Was prev(): Node; now prev(): Node | undefined. npmjs.com

Check your code

These are the changes. To see which of them reach your code, scan a public repository, or have your coding agent call check_code with your manifest or lockfile over MCP. The API reads every change in every version, not only the newest. On Team and up, a fix pull request opens for the changes that reach a connected repository. Nothing merges or deploys.