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Apple opens developer proposals for Interop 2027
Apple’s WebKit team opened the Interop 2027 proposal process on September 3, 2026. Developers can submit or support proposals through September 23, with submissions expected to focus on mature, testable web standards and interoperability needs.
DNA Brief
Signal Summary
Interop 2027 is the next edition of a cross-browser interoperability initiative that Apple has worked on with Google, Microsoft, Mozilla, Bocoup, and Igalia. The annual effort began in 2022, selects focus areas partly from community proposals, and measures progress with shared Web Platform Tests; the source does not yet identify the proposals that will be selected.
Why It Matters
The September 23 deadline is an early step in setting the web compatibility priorities for the next year. Proposals that are selected will become candidates for shared testing and cross-browser work, but the final Interop 2027 focus areas remain unknown.
Evidence
Start with the primary evidence, then review supporting sources and context.
Primary Evidence
1Apple invites developers to submit browser interoperability ideas for Interop 2027
Marcus Mendes
“Apple’s WebKit team is inviting developers to submit their ideas for Interop 2027, the next edition of the cross-browser initiative aimed at improving web interoperability. Here are the details. more...”
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