QuickTime 7.6.4 includes changes that increase reliability, improve compatibility and enhance security. This release is recommended for all QuickTime 7 users.
For detailed information on this update, please visit this website: http://support.apple.com/kb/HT3661.
For information on the security content of this update, please visit this website: http://support.apple.com/kb/HT1222.
"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.