macOS 10.12.6 was an update to macOS 10.12 released on July 19, 2017. This update:
- Resolves an issue that prevents making certain SMB connections from the Finder.
- Fixes an issue that causes Xsan clients to unexpectedly restart when moving a file within a relation point on a Quantum StorNext File System.
- Improves the stability of Terminal app.
See Apple Security Updates for detailed information about the security content of this update.