macOS
Siri on macOS 27
NotNotch is meant to run Siri on macOS 27 (Darwin 27) while still supporting macOS 14. The shipping app does not replace Siri or claim system-assistant status.
Last updated 2026-06-09
Runtime vs SDK
Local builds may still use the macOS 26 SDK in Xcode 26. The goal is a clean run on macOS 27, not a 27-only app.
What stays the same
Siri should keep the same user-facing behavior. The shipping app does not replace Siri or claim system-assistant status.