Entries are now open for Interop 2026, a yearly effort where anyone, from users to web developers, can submit their best ideas to improve cross-browser interoperability. Here’s how to participate.
Interop started in 2022, when Apple, Bocoup, Google, Italia, Microsoft, and Mozilla came together “to commit to improve interoperability in 15 key areas that will have the most impact on web developer experience.”
The project, which stemmed from Google’s Compat initiative, gained enough traction to become an annual event.
As the group explains it:
“We’re looking for proposals that address real-world interoperability challenges. If you are struggling to get part of your project to work in every browser at the same time, even while coding with proper progressive enhancement techniques, then you are running into an interoperability challenge. A lot of interoperability problems have already been addressed in Interop 2025, 2024, 2023, 2022, and 2021. Many long-standing bugs have been fixed. So, what else needs to be tackled? What is truly getting in your way? We want to hear from you, the web developer.”
Apple stresses that it is important that any submitted idea is built on top of a mature web standard from the likes of W3C, and TC39, otherwise “it’s too early for it to be a Focus Area for Interop 2026.”
The company notes that testability is also an essential criteria, so it is important to keep these two things in mind.
How to submit an idea
The Interop group has published an extensive documentation on Github, where they also flesh out the criteria outlined above.
But in a nutshell, as explained on Apple’s WebKit blog:
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