macOS 27
On-device macOS 27 on a Mac
macOS 27 is implemented in the native Swift app, not as a web view in the notch. NotNotch keeps a macOS 14 deployment floor and is intended to run on macOS 27 without raising the minimum to 27.
Last updated 2027-07-22
Why native matters
A real Mac utility can follow Spaces, displays, and system appearance. macOS 27 is part of that host.
What stays in-tree
First-party macOS 27 lives in the app. Third-party packages cannot load unsigned code.