ConceptInterop
Interop 2025
An annual interoperability initiative jointly launched by major browser vendors including Apple, Google, Mozilla, and Microsoft. It uses a shared test suite (Web Platform Tests) to drive consistent implementation of Web platform standard features across browsers.
Timeline (last 90 days)
Oct 13
CSS Anchor Positioning has landed in Chrome 125 and Safari 26 and has been included in Interop 2025.
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Oct 6
View Transitions has been included in the Interop 2025 project
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