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Pull requests: mdn/browser-compat-data
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Map alpha and colorspace attributes to web features
data:html
Compat data for HTML elements. https://developer.mozilla.org/docs/Web/HTML
size:xs
[PR only] 0-6 LoC changed
#28903
opened Jan 24, 2026 by
nt1m
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Update device memory limits
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
data:http
Compat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTP
size:m
[PR only] 25-100 LoC changed
#28900
opened Jan 23, 2026 by
tunetheweb
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Chrome 144 RTCDegradationPreference maintain-framerate-and-resolution…
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
size:m
[PR only] 25-100 LoC changed
#28898
opened Jan 23, 2026 by
chrisdavidmills
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Chrome 144 supports ch-ua-high-entropy-values permissions policy
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
data:http
Compat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTP
size:m
[PR only] 25-100 LoC changed
#28895
opened Jan 23, 2026 by
chrisdavidmills
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Chrome 144 support for subgroup_id WGSL language feature
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
size:m
[PR only] 25-100 LoC changed
#28891
opened Jan 22, 2026 by
chrisdavidmills
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Node 24.3.0 fully supports Compat data for JS/ECMAScript features. https://developer.mozilla.org/docs/Web/JavaScript
size:xs
[PR only] 0-6 LoC changed
Error.isError()
data:js
#28890
opened Jan 22, 2026 by
Renegade334
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Chrome 144 :current support
data:css
Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS
size:m
[PR only] 25-100 LoC changed
#28882
opened Jan 21, 2026 by
chrisdavidmills
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added ff release note about time picker
data:html
Compat data for HTML elements. https://developer.mozilla.org/docs/Web/HTML
size:xs
[PR only] 0-6 LoC changed
#28873
opened Jan 20, 2026 by
dletorey
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Update Chrome 87/88 note about CSS Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS
size:xs
[PR only] 0-6 LoC changed
text-decoration-thickness
data:css
#28854
opened Jan 17, 2026 by
mincerafter42
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Mark the Issues or pull requests regarding the documentation of this project.
schema
Isses or pull requests regarding the JSON schema files used in this project.
semver-minor-bump
A change that adds a new, non-potentially-breaking feature for consumers
size:s
[PR only] 7-24 LoC changed
experimental property as deprecated
docs
#28811
opened Jan 13, 2026 by
ddbeck
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Chrome 144 geolocation element
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
data:css
Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS
data:html
Compat data for HTML elements. https://developer.mozilla.org/docs/Web/HTML
size:l
[PR only] 101-1000 LoC changed
#28801
opened Jan 12, 2026 by
chrisdavidmills
•
Draft
Issue-28341 webextension.api documentId and parentDocumentId updates
data:webext
Compat data for Browser Extensions. https://developer.mozilla.org/Add-ons/WebExtensions
size:l
[PR only] 101-1000 LoC changed
#28790
opened Jan 9, 2026 by
rebloor
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Permissions-Policy: gamepad - probably experimental
data:http
Compat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTP
size:m
[PR only] 25-100 LoC changed
#28744
opened Dec 28, 2025 by
hamishwillee
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refactor: migrate from TypeScript to JavaScript
bulk_update
An update to a mass amount of data, or scripts/linters related to such changes
dependencies
Pull requests that update a dependency package or file.
infra
Infrastructure issues (npm, GitHub Actions, releases) of this project
linter
Issues or pull requests regarding the tests / linter of the JSON files.
scripts
Issues or pull requests regarding the scripts in scripts/.
size:xl
[PR only] >1000 LoC changed
Add Temporal bugs for Bun + Node.js
data:js
Compat data for JS/ECMAScript features. https://developer.mozilla.org/docs/Web/JavaScript
size:s
[PR only] 7-24 LoC changed
#28614
opened Dec 8, 2025 by
simon04
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Safari 26 removed Compat data for HTML elements. https://developer.mozilla.org/docs/Web/HTML
size:s
[PR only] 7-24 LoC changed
<meta name="theme-color">
data:html
#28503
opened Nov 21, 2025 by
andesco
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Deprecate Google Privacy Sandbox (Browsing) Topics API
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
data:html
Compat data for HTML elements. https://developer.mozilla.org/docs/Web/HTML
data:http
Compat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTP
size:s
[PR only] 7-24 LoC changed
#28418
opened Nov 8, 2025 by
bershanskiy
•
Draft
Unmark Firefox as partial for Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS
meeting agenda
Issues or pull requests in need of discussion in a project meeting.
merge conflicts 🚧
This PR needs to merge latest "main" branch to resolve a merge conflict or other issue.
size:s
[PR only] 7-24 LoC changed
::highlight CSS selector
data:css
Chrome 110 applies User-Agent reduction to Navigator properties + Blocked and unable to proceed.
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
data:http
Compat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTP
size:l
[PR only] 101-1000 LoC changed
User-Agent header
blocked
#28275
opened Oct 23, 2025 by
chrisdavidmills
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Extract HTML Compat data for HTML elements. https://developer.mozilla.org/docs/Web/HTML
size:l
[PR only] 101-1000 LoC changed
<datalist> input type subfeatures
data:html
#28189
opened Oct 14, 2025 by
caugner
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Add CSS caret property (WIP - awaiting browser support)
data:css
Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS
size:m
[PR only] 25-100 LoC changed
#27904
opened Sep 16, 2025 by
yashrajbharti
•
Draft
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Updated in the last three days: updated:>2026-01-21.