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I agree that is a real issue. By my point is that the proposed solution is now that Google itself is now going to have to maintain support for old Fuschia devices because the burden is now on them to maintain this stable ABI. How is this going to solve anything compared to just making a support promise about a particular Linux version? Nothing here seems like it would improve for the app developers.

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*Fuchsia

It's ok, nobody can spell fuchsia: https://blog.xkcd.com/2010/05/03/color-survey-results/

Back on topic though, I think it's just easier from an engineering perspective to maintain a stable ABI than it is to maintain a set of blessed kernel versions.

An ABI is something that can be reasonably well-defined and has a clear scope, whereas if you just say that you support kernel versions X, Y and Z, then who knows what weird undocumented behavior you'll need to maintain.

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