Apple’s officially started beaming out iOS 10.2.1, macOS 10.12.3, watchOS 3.1.3, and tvOS 10.1.1 for all eligible devices. The first fixes a number of serious security threats, while the second resolves GPU and battery problems being faced by 2016 MacBook Pro models.
The release notes for iOS 10.2.1 merely states that it includes bug fixes and improves the security of iPhones and iPads. A separate support page discloses the security content of the upgrade. For instance, Apple has addressed an issue which paved the way for malicious contact cards to bring about an unexpected app termination, as highlighted in a recent video.
Apple has further repaired an Auto Unlock problem which let an iPhone or iPad unlock even if a person’s Apple Watch was off their wrist and a Kernel flaw that might have permitted an application to execute arbitrary code. iOS 10.2.1 also resolves a Wi-Fi concern which allowed activation-locked products to be manipulated into briefly showing the home screen.
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As for macOS 10.12.3, the update promises to improve automatic graphics switching on the 2016 MacBook Pro and put an end to graphics issues that came about when encoding Adobe Premiere Pro projects on the MacBook Pro with Touch Bar. Furthermore, third-party apps can now correctly import images from cameras and encrypted PDF compatibility issues have been vanquished.
While the release notes don’t mention it, there’s a high probability macOS 10.12.3 squashes a Safari icon fetching bug that resulted in poor battery life performance for Apple’s latest MacBook Pro models. The problem received a lot of publicity thanks to the Consumer Reports controversy and was resolved in a beta update.