← Wednesday, October 21, 2026WebDeep dive

Browser vendors use Interop to coordinate support for web features

joshwcomeau.com 19 min read Editor score 6/10

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The piece says Interop helped bring CSS Subgrid to broad browser support after years of uneven implementation, and describes planning for Interop 2027. It offers useful context on cross-browser platform coordination.

What
Interop is a project where major browser vendors coordinate work to improve support for web technologies.
How
CSS Subgrid joined Interop 2023 and became widely available across modern browsers by the end of that year.
Why it matters
Coordinated implementation can reduce browser incompatibilities for engineers building web interfaces.

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