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Unnecessary <code>ie: false</code> doesn't cause linter error

bugConfirmed bugs in the repository (i.e. linter bugs), NOT browser implementation bugs.Confirmed bugs in the repository (i.e. linter bugs), NOT browser implementation bugs.

linterIssues or pull requests regarding the tests / linter of the JSON files.Issues or pull requests regarding the tests / linter of the JSON files.

Status: Open.

#28988 In mdn/browser-compat-data;

· caugner opened on Feb 6, 2026

Firefox mapping to -webkit-font-smoothing

Status: Open.

#28984 In mdn/browser-compat-data;

· nileshprajapati opened on Feb 5, 2026

css.properties.letter-spacing - <code>&lt;percentage&gt;</code> not supported until Chrome 145

data:cssCompat data for CSS features. https://developer.mozilla.org/docs/Web/CSSCompat data for CSS features. https://developer.mozilla.org/docs/Web/CSS

needs collector testNeeds a custom BCD collector testNeeds a custom BCD collector test

Status: Open.

#28979 In mdn/browser-compat-data;

· letynsoft opened on Feb 5, 2026

PageSwapEvent – Safari does not trigger this event for cross-origin navigations

data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APICompat data for Web APIs. https://developer.mozilla.org/docs/Web/API

p3Medium priority – Community PRs encouraged.Medium priority – Community PRs encouraged.

Status: Open.

#28973 In mdn/browser-compat-data;

· bramus opened on Feb 4, 2026

npm run test on Windows fails

bugConfirmed bugs in the repository (i.e. linter bugs), NOT browser implementation bugs.Confirmed bugs in the repository (i.e. linter bugs), NOT browser implementation bugs.

info neededThis needs more information to review or act on.This needs more information to review or act on.

Status: Open.

#28958 In mdn/browser-compat-data;

· hamishwillee opened on Feb 2, 2026

css.selectors.only-child - matches with no parents for Safari

data:cssCompat data for CSS features. https://developer.mozilla.org/docs/Web/CSSCompat data for CSS features. https://developer.mozilla.org/docs/Web/CSS

p3Medium priority – Community PRs encouraged.Medium priority – Community PRs encouraged.

Status: Open.

#28950 In mdn/browser-compat-data;

· karlcow opened on Jan 31, 2026

Zstandard: Update Safari support version information

data:httpCompat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTPCompat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTP

p3Medium priority – Community PRs encouraged.Medium priority – Community PRs encouraged.

Status: Open.

#28948 In mdn/browser-compat-data;

· ekinnear opened on Jan 31, 2026

Add guidelines for CSS support data

docsIssues or pull requests regarding the documentation of this project.Issues or pull requests regarding the documentation of this project.

enhancementNice to have features.Nice to have features.

p1Highest priority – Should be addressed in the next few releases.Highest priority – Should be addressed in the next few releases.

Status: Open.

#28913 In mdn/browser-compat-data;

· caugner opened on Jan 26, 2026

api.Translator - Edge Support Missing

data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APICompat data for Web APIs. https://developer.mozilla.org/docs/Web/API

p3Medium priority – Community PRs encouraged.Medium priority – Community PRs encouraged.

Status: Open.

#28839 In mdn/browser-compat-data;

· allout58 opened on Jan 15, 2026

css.types.timeline-range-name - Missing compatibility data

data:cssCompat data for CSS features. https://developer.mozilla.org/docs/Web/CSSCompat data for CSS features. https://developer.mozilla.org/docs/Web/CSS

needs collector testNeeds a custom BCD collector testNeeds a custom BCD collector test

Status: Open.

#28838 In mdn/browser-compat-data;

· estelle opened on Jan 15, 2026

Linter doesn't complain about unnecessary <code>ie: { "version_added": false }</code> statements

linterIssues or pull requests regarding the tests / linter of the JSON files.Issues or pull requests regarding the tests / linter of the JSON files.

Status: Open.

#28837 In mdn/browser-compat-data;

· caugner opened on Jan 15, 2026

Disallow consecutive partial_implementation statements on same track

linterIssues or pull requests regarding the tests / linter of the JSON files.Issues or pull requests regarding the tests / linter of the JSON files.

meeting agendaIssues or pull requests in need of discussion in a project meeting.Issues or pull requests in need of discussion in a project meeting.

Status: Open.

#28823 In mdn/browser-compat-data;

· caugner opened on Jan 14, 2026