"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
10.2.6 6L51 Seeded?
The update is said to include the following:
- Improved reliability for the following applications, services, and technologies: Address Book, Graphics, Printing, OpenGL, and PC Card and USB Hub compatibility.
USB kernal panic fixed, Unreal Tournament 2003 GeForce video improved compatibility and other minor fixes.