macOS Sequoia 15.6 Release Notes
Update your apps to use new features, and test your apps against API changes.
Overview
The macOS 15.5 SDK provides support to develop apps for Mac computers running Sequoia 15.6. The SDK comes bundled with Xcode 16.4, available from the Mac App Store. For information on the compatibility requirements for Xcode 16.4, see Xcode 16.4 Release Notes.
General
Resolved Issues
Fixed: Finder and Apple Configurator may be unable to successfully restore some devices from DFU mode. (153476458)