New macOS 10.12.3 update implements MacBook Pro GPU fix, rectifies Safari battery drain
In conjunction with iOS, tvOS, and watchOS updates, Apple has also released the 10.12.3 update to macOS Sierra, bringing GPU driver updates to the 2016 MacBook Pro, and a fix for PDF corruption.
Apple's release notes specify that the 10.12.3 update improves automatic graphics switching on the 2016 MacBook Pro 15-inch model, as well as resolves issues while encoding Adobe Premiere Pro project on the same model, plus the 13-inch MacBook Pro with Touch Bar.
Apple also claims that the update "improves the stability, compatibility, and security of your Mac." Display brightness has been added as a potential energy impact warning item,, and Apple has also rectified some issues surrounding the MacBook Pro's battery drain in Safari, as accidentally discovered by Consumer Reports during the course of their testing.
The update weighs in at 1.05 GB for a 2016 MacBook Pro, and is available through the Mac App Store.