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– Improves automatic graphics switching on MacBook Pro (15-inch, October 2016). The macOS Sierra 10.12.3 Update improves the stability and security of your Mac, and is recommended for all users.
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The release notes accompanying Mac OS 10.12.3 are as follows: Mac users can also choose to install macOS 10.12.3 with a Combo Update using these instructions here if desired, the individual package updaters for Mac OS 10.12.3 Sierra are located here: The Mac will eventually need to reboot to complete the software update.
How to Install MacOS 10.12.3 Updateīe sure to back up your Mac before installing any system software update. Other smaller bug fixes and security enhancements are likely included. Major fixes in MacOS Sierra 10.12.3 include addressing some PDF documents issues, a resolution to issues with some digital cameras importing abilities, and a resolution to various graphics issues for the newer model MacBook Pro hardware. Separately, Apple has also released software updates to iOS 10.2.1, tvOS 10.1.1,and watchOS 3.1.3 as well as smaller software updates available for users of Mac OS X El Capitan, Yosemite, and Mavericks.
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