Download macOS Sierra 10.12.5 Update for 2017 iMacs
The macOS Sierra 10.12.5 update improves the security, stability and compatibility of your Mac, and is recommended for all users.
- Fixes an issue where audio may stutter when played through USB headphones
- Improves reliability when connecting an external display or waking it from sleep
- Enhances compatibility of the Mac App Store with future software updates
- Adds support for media-free installation of Windows 10 Creators Update using Boot Camp
For more detailed information about this update, please visit: https://support.apple.com/kb/HT207706
For detailed information about the security content of this update, please visit: https://support.apple.com/kb/HT201222