- Sources: GrapheneOS post, API diff summary for level 37.1, HN discussion
- Summary: Google's published API diff summary for level 37.1, generated 2026-06-29, confirms the new APIs exist, listing android.hardware.hid as an added package alongside 16 changed packages. GrapheneOS states there is no corresponding AOSP release and that the APIs ship only in Pixel OS. Google has not commented on that claim, which is why this is developing rather than confirmed.
- Why it matters: If new app APIs ship only in Pixel OS, developers targeting level 37.1 cannot rely on them across OEM devices and AOSP-derived distributions lose the source they build against.
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