This update:

• Improves automatic graphics switching on MacBook Pro (15-inch, October 2016)
• Resolves graphics issues while encoding Adobe Premiere Pro projects on MacBook Pro with Touch Bar (13- and 15-inch, October 2016)
• Fixes an issue that prevented the searching of scanned PDF documents in Preview

 

For more detailed information about this update, please visit: https://support.apple.com/kb/HT207462 

For detailed information about the security content of this update, please visit: https://support.apple.com/kb/HT201222