Upgrading postcss-selector-parser from 6.x to 7.x

Comparison of the public API of postcss-selector-parser 6.1.4 and 7.1.6, computed automatically from their TypeScript types. A changed signature is a candidate for a breaking change, not a certainty.

Summary

Removed import paths	0
Removed exports	0
Changed signatures	0
Removed class or interface members	0
Changed class or interface members	6
Newly deprecated	0
Requirement changes (engines, peer dependencies)	0
New exports	0

Removed exports

None detected.

Changed signatures

None detected.

Removed class or interface members

None detected.

Changed class or interface members

member	Before	After
`Root.insertAfter`	`(oldNode: Selector, newNode: Selector): Root`	`(oldNode: Selector, newNode: Selector, ...restNode: Selector[]): Root`
`Root.insertBefore`	`(oldNode: Selector, newNode: Selector): Root`	`(oldNode: Selector, newNode: Selector, ...restNode: Selector[]): Root`
`Pseudo.insertAfter`	`(oldNode: Selector, newNode: Selector): Pseudo`	`(oldNode: Selector, newNode: Selector, ...restNode: Selector[]): Pseudo`
`Pseudo.insertBefore`	`(oldNode: Selector, newNode: Selector): Pseudo`	`(oldNode: Selector, newNode: Selector, ...restNode: Selector[]): Pseudo`
`Container.insertAfter`	`(oldNode: Child, newNode: Child): Container<Value, Child>`	`(oldNode: Child, newNode: Child, ...restNode: Child[]): Container<Value, Child>`
`Container.insertBefore`	`(oldNode: Child, newNode: Child): Container<Value, Child>`	`(oldNode: Child, newNode: Child, ...restNode: Child[]): Container<Value, Child>`

Newly deprecated

None detected.

Requirement changes (engines, peer dependencies)

None detected.

Changelog between these versions

Text published by the package authors, shown as-is.

7.1.6

- fix: parse flat selectors in linear time, closing a CPU exhaustion vulnerability ([GHSA-rj75-hqrm-r3gf](https://github.com/advisories/GHSA-rj75-hqrm-r3gf), reported by Wayde Shi)

7.1.5

- fix: don't treat a non-prefix token before `|` as a namespace ([#324](https://github.com/postcss/postcss-selector-parser/pull/324) by [@spokodev](https://github.com/spokodev))
- fix: preserve whitespace before a `*` namespace in attribute selectors ([#325](https://github.com/postcss/postcss-selector-parser/pull/325) by [@spokodev](https://github.com/spokodev))
- fix: TypeError on unclosed `[`, `(` and trailing `|` ([#330](https://github.com/postcss/postcss-selector-parser/pull/330) by [@theRizwan](https://github.com/theRizwan))

7.1.4

- fix: tolerate non-node children when serializing selectors

7.1.3

- Improve fix CVE-2026-9358 (NVD) / SNYK-JS-POSTCSSSELECTORPARSER-16873882 (clone/walk)

7.1.2

- Fix [CVE-2026-9358](https://github.com/advisories/GHSA-w9m9-85wc-3x92) (NVD) / SNYK-JS-POSTCSSSELECTORPARSER-16873882 ([#316](https://github.com/postcss/postcss-selector-parser/pull/316) by [@MoOx](https://github.com/MoOx))

7.1.1

- perf: replace startsWith with strict equality (#308)
- fix(types): add walkUniversal declaration (#311)

7.1.0

- feat: insert(Before|After) support multiple new node

7.0.0

- Feat: make insertions during iteration safe (major)

Frequently asked questions

What are the breaking changes when upgrading postcss-selector-parser from 6 to 7?

Between postcss-selector-parser 6.1.4 and 7.1.6, Vigia found 0 removed exports, 0 changed signatures and 6 removed or changed class or interface members.

What became deprecated in postcss-selector-parser 7?

0 exports or members are newly marked as deprecated in postcss-selector-parser 7.1.6.

For agents

GET https://vigia.coredls.cloud/v1/packages/npm/postcss-selector-parser/upgrade?from=6.1.4&to=7.1.6