Apple deprecates hdiutil in macOS 27 Golden Gate: diskutil image is faster, but missing key options

hdiutil is deprecated in macOS 27 Golden Gate

Jeff Johnson reports that macOS 27 Golden Gate deprecates the long-standing command-line tool hdiutil, directing users to diskutil image instead. While the new tool is significantly faster and produces smaller disk images, it lacks several hdiutil options, including -puppetstrings and -scrub, and fails with unhelpful errors when encountering file permission issues. Johnson's tests show diskutil image completes a home folder backup in 40-45 seconds versus 110-115 seconds for hdiutil, but it also skips the ~/.Trash folder by default. He criticizes Apple for breaking existing workflows and notes that the deprecation could break apps that call hdiutil directly.