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Pull requests: mdn/browser-compat-data
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added firefox support for appearance: base-select
data:css
Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS
size:s
[PR only] 7-24 LoC changed
#29845
opened Jun 12, 2026 by
dletorey
Contributor
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Updates for Safari 27 beta
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
data:http
Compat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTP
data:wasm
Compat data for Web Assembly features. https://developer.mozilla.org/en-US/docs/WebAssembly
size:l
[PR only] 101-1000 LoC changed
#29823
opened Jun 8, 2026 by
Elchi3
Member
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WebTransport renamed datagram buffer properties
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
size:m
[PR only] 25-100 LoC changed
#29810
opened Jun 5, 2026 by
Elchi3
Member
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Fix more spec_urls
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
data:http
Compat data for HTTP features. https://developer.mozilla.org/docs/Web/HTTP
data:js
Compat data for JS/ECMAScript features. https://developer.mozilla.org/docs/Web/JavaScript
data:svg
Compat data for SVG features. https://developer.mozilla.org/docs/Web/SVG
data:wasm
Compat data for Web Assembly features. https://developer.mozilla.org/en-US/docs/WebAssembly
size:l
[PR only] 101-1000 LoC changed
#29809
opened Jun 5, 2026 by
Elchi3
Member
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Update Firefox support for WebAssembly JS-PI
data:wasm
Compat data for Web Assembly features. https://developer.mozilla.org/en-US/docs/WebAssembly
size:s
[PR only] 7-24 LoC changed
#29783
opened Jun 1, 2026 by
KirtiRamchandani
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Update Firefox support for Crash Reporting API
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
size:s
[PR only] 7-24 LoC changed
#29782
opened Jun 1, 2026 by
KirtiRamchandani
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Update Firefox data for appearance: base-select
data:css
Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS
size:s
[PR only] 7-24 LoC changed
#29780
opened Jun 1, 2026 by
KirtiRamchandani
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FF152 MediaCapabilities.decodingInfo/encodingInfo() - config.type.webrtc option
data:api
Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API
meeting agenda
Issues or pull requests in need of discussion in a project meeting.
size:l
[PR only] 101-1000 LoC changed
#29739
opened May 25, 2026 by
hamishwillee
Contributor
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Issue 29704 webextensions.api.menus.ContextType "tab" support in Chrome-150
data:webext
Compat data for Browser Extensions. https://developer.mozilla.org/Add-ons/WebExtensions
size:xs
[PR only] 0-6 LoC changed
#29738
opened May 24, 2026 by
rebloor
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
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