macOS 10.12.2 was an update to macOS 10.12 released on December 13, 2016.
- Improves setup and reliability of Auto Unlock
- Allows addition of a Chinese Trackpad Handwriting button to the Touch Bar Control Strip
- Adds support for taking screenshots of the Touch Bar using the Grab app or Cmd-Shift-6 shortcut
- Fixes an issue that caused the Touch Bar emoji picker to appear on the display
- Resolves graphics issues on MacBook Pro (October 2016) computers
- Fixes an issue where System Integrity Protection was disabled on some MacBook Pro (October 2016) computers
- Improves setup and opt-out experience for iCloud Desktop and Documents
- Fixes an issue with the delivery of Optimized Storage alerts
- Improves audio quality when using Siri and FaceTime with Bluetooth headphones
- Improves the stability of Photos when creating and ordering books
- Fixes an issue where incoming Mail messages did not appear when using a Microsoft Exchange account
- Fixes an issue that prevented installation of Safari Extensions downloaded outside the Safari Extensions Gallery
- Adds support for new installations of Windows 8 and Windows 7 using Boot Camp on supported Macs
For detailed information about the security content of this update, please visit: 
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