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Pull requests: mdn/browser-compat-data
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Updates for Deno v2.8 and earlier
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
data:browsers
Data about browsers (versions, release dates, etc). This data is used for validation.
data:js
Compat data for JS/ECMAScript features. https://developer.mozilla.org/docs/Web/JavaScript
size:l
[PR only] 101-1000 LoC changed
#29724
opened May 21, 2026 by
bartlomieju
Contributor
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Node.js 15.3.0…26.0.0
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
data:browsers
Data about browsers (versions, release dates, etc). This data is used for validation.
data:js
Compat data for JS/ECMAScript features. https://developer.mozilla.org/docs/Web/JavaScript
data:wasm
Compat data for Web Assembly features. https://developer.mozilla.org/en-US/docs/WebAssembly
size:xl
[PR only] >1000 LoC changed
feat(scripts/release): list renamed features in release notes
infra
Infrastructure issues (npm, GitHub Actions, releases) of this project
scripts
Issues or pull requests regarding the scripts in scripts/.
size:l
[PR only] 101-1000 LoC changed
feat(lint): check descriptions of static members
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
infra
Infrastructure issues (npm, GitHub Actions, releases) of this project
linter
Issues or pull requests regarding the tests / linter of the JSON files.
size:l
[PR only] 101-1000 LoC changed
PlatformArch values support details
data:webext
Compat data for Browser Extensions. https://developer.mozilla.org/Add-ons/WebExtensions
size:l
[PR only] 101-1000 LoC changed
feat(lint): replace code tags in descriptions + notes
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
data:webext
Compat data for Browser Extensions. https://developer.mozilla.org/Add-ons/WebExtensions
infra
Infrastructure issues (npm, GitHub Actions, releases) of this project
linter
Issues or pull requests regarding the tests / linter of the JSON files.
size:l
[PR only] 101-1000 LoC changed
fix(lint): add MDN urls for features with Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
infra
Infrastructure issues (npm, GitHub Actions, releases) of this project
merge conflicts 🚧
This PR needs to merge latest "main" branch to resolve a merge conflict or other issue.
size:m
[PR only] 25-100 LoC changed
@@ prefix
data:api
Chromium partially supports Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS
size:m
[PR only] 25-100 LoC changed
{align,justify,place}-self with absolute positioning
data:css
#29342
opened Mar 25, 2026 by
captainbrosset
Contributor
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refactor(test): migrate from mocha to node:test/assert
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.
merge conflicts 🚧
This PR needs to merge latest "main" branch to resolve a merge conflict or other issue.
scripts
Issues or pull requests regarding the scripts in scripts/.
size:l
[PR only] 101-1000 LoC changed
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
Contributor
•
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
Contributor
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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
Contributor
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Update all browsers data for global_attributes SVG feature
data:svg
Compat data for SVG features. https://developer.mozilla.org/docs/Web/SVG
merge conflicts 🚧
This PR needs to merge latest "main" branch to resolve a merge conflict or other issue.
size:l
[PR only] 101-1000 LoC changed
#27389
opened Jul 23, 2025 by
queengooborg
Contributor
•
Draft
Update all browsers data for text-orientation CSS property
data:css
Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS
size:s
[PR only] 7-24 LoC changed
#27189
opened Jun 30, 2025 by
queengooborg
Contributor
•
Draft
Chrome 8 added Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS
size:xs
[PR only] 0-6 LoC changed
speak CSS property
data:css
#27188
opened Jun 30, 2025 by
queengooborg
Contributor
•
Draft
Add data points for Chrome 136 MediaRecorder H26x codec support
blocked
Blocked and unable to proceed.
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
size:m
[PR only] 25-100 LoC changed
#27142
opened Jun 25, 2025 by
chrisdavidmills
Contributor
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Update Firefox data for api.SVGElement.load_event
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
size:xs
[PR only] 0-6 LoC changed
#26686
opened May 1, 2025 by
queengooborg
Contributor
•
Draft
Ensure the property order of the released data matches internal schema
infra
Infrastructure issues (npm, GitHub Actions, releases) of this project
merge conflicts 🚧
This PR needs to merge latest "main" branch to resolve a merge conflict or other issue.
scripts
Issues or pull requests regarding the scripts in scripts/.
size:m
[PR only] 25-100 LoC changed
#26050
opened Feb 25, 2025 by
queengooborg
Contributor
•
Draft
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