Apple warns of networking changes coming in macOS 27
Original: Networking changes coming in macOS 27
Why This Matters
Major macOS networking changes could disrupt enterprise environments and older hardware
Apple has issued advance warnings about two major networking changes expected in macOS 27: removal of AFP file-sharing protocol support and mandatory TLS 1.2+ requirements for certain server connections affecting enterprise users and MDM systems.
Apple rarely provides advance notice of major macOS changes, but has warned of two significant networking modifications coming in macOS 27. First, AFP (Apple Filing Protocol) support may finally be removed after years of warnings, potentially affecting users with Time Capsules or older NAS systems lacking SMB3 support. Apple made SMB its primary file-sharing protocol in OS X 10.9 Mavericks over 12 years ago. Second, Apple will require TLS 1.2 or later connections to certain servers, primarily affecting MDM, DDM, Automated Device Enrollment, and app distribution systems. The change requires ATS-compliant ciphersuites and valid certificates meeting ATS standards. Apple provided a complex diagnostic process involving network logging profiles and terminal commands to help administrators audit their server connections for compliance.