Media
YouTube Music on macOS 27
NotNotch is meant to run YouTube Music on macOS 27 (Darwin 27) while still supporting macOS 14. YouTube Music can attach through the optional WebSocket controller.
Last updated 2026-12-06
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
YouTube Music should keep the same user-facing behavior. YouTube Music can attach through the optional WebSocket controller.