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Apple Releases macOS Sierra 10.12.6 With Security and Stability Improvements
macOS Sierra 10.12.6 is a free update for all customers who have a compatible machine. The update can be downloaded using the Software Update function in the Mac App Store.
There were no bug fixes, feature additions, or other changes found in macOS Sierra 10.12.6 during the beta testing process, suggesting the update focuses on security improvements and other small enhancements.
macOS Sierra 10.12.6 is likely to be one of the last updates to the macOS Sierra operating system, as Apple is preparing to shift focus to macOS High Sierra, the next version of macOS. Apple introduced macOS High Sierra at the Worldwide Developers Conference on June 5.