"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
Apple Seeds Fifth macOS Sierra 10.12.2 Beta to Developers and Public Beta Testers
The fifth beta of macOS Sierra 10.12.2 is available for download through the Apple Developer Center or through the software update mechanism in the Mac App Store.
macOS Sierra 10.12.2 includes new emoji, introducing Unicode 9 characters like clown face, selfie, face palm, fox face, owl, shark, butterfly, avocado, bacon, and more, plus many profession emoji are available in both male and female genders.
Apple has also updated the artwork on many existing emoji, adding detail and design elements to make them look less cartoonish and more realistic. New wallpapers are also included in macOS Sierra 10.12.2, introducing the color explosion options that have been used in iPhone marketing materials.
There are few other outward-facing changes aside from the addition of new emoji and wallpapers, but the 10.12.2 update also likely includes many bug fixes and performance enhancements to address issues that have surfaced since the release of macOS Sierra 10.12.1.
Available since September, macOS Sierra is the latest Mac operating system. It includes Siri support, Apple Pay for the web, Universal Clipboard, Apple Watch auto unlocking, improved iCloud Drive integration, Picture-in-Picture multitasking, and dozens of smaller features that can be found in our macOS Sierra roundup.