macOS High Sierra

Apple’s High Sierra is coming. Below are some links to help prepare for it—

Upgrade to macOS High Sierra

  • Model specific firmware updates are required (via the internet) for each system. Monolithic system imaging is therefore only supported to re-install macOS High Sierra. Please see this article for upgrade methods and supported APFS creation tools:

Secure Kernel Extension Loading (SKEL)

  • Administrator or standard user approval is required before loading new third-party kernel extensions. A future version of macOS High Sierra will be able to use MDM to enable or disable SKEL:

Apple File System (APFS)

  • Upgrading to macOS High Sierra converts flash storage-based systems from HFS+ to APFS automatically. Systems with hard disk drives (HDD) and Fusion drives won’t be converted to APFS, but will support macOS High Sierra on HFS+ file systems. Apple File Protocol (AFP) is no longer supported from APFS volumes. SMB or NFS are supported file sharing solutions:

What’s New in macOS High Sierra:

What’s New in iOS 11:

What’s New in tvOS (11):

Prepare your institution for iOS 11, macOS High Sierra, or macOS Server 5.4:

Upgrade macOS on a Mac at your institution:

Prepare for changes to kernel extensions in macOS High Sierra:

Prepare for APFS in macOS High Sierra:

Create a bootable installer for macOS:

Move to SHA-256 signed certificates to avoid connection failures:

Prepare for changes to Content Caching in macOS High Sierra:

Many thanks to Apple’s Tim Parker for the links!