macOS

macOS Sequoia for Mac notch developers

If you are extending NotNotch, macOS Sequoia is a host surface or a documented constraint. Now Playing on newer systems can use MediaRemoteAdapter paths introduced around macOS 15.4.

Last updated 2027-09-01

Host rules

Packages declare placements in manifest.json. macOS Sequoia may be openTab, liveActivity, or a first-party module.

Do not disable library validation

Unsigned third-party binaries stay manifest-only. That is intentional.

Back to the blog