Apple has released macOS High Sierra, which offers new features such as Apple File System, new features in the Photos app, improved video playback, and more. You can get these new features—and the entire operating system—for free. Before you install High Sierra, you should back up your Mac. (byuu, qwertymodo) • Added option to ignore patch checksums. (bonimy) • Correct pixel placement in hires. (qwertymodo) • Fixed build warnings / undefined behavior. Mac n64 emulator. I am attempting to upgrade to High Sierra on my MacBook Pro (2015). After restarting the laptop after starting the upgrade (per onscreen instructions) I am now getting a spinner on a black screen, rotating very slowly with seemingly no progress on the installation. This has been the state for about 16 hours. Sep 20, 2016 - Some trivia, if you're interested: macOS isn't entirely a new name. Before version 10, Apple used to call its Mac operating system Mac OS, with the last version being Mac OS 9. Apple change the name to OS X when version 10 was released in 2001. Run Time Machine or your if you have one. You can also read our to learn more about the features and read our to prep your Mac. Set aside some time to run the installer, at least an hour, depending on your internet connection speed. Once you’re ready, follow the instructions below. How to install macOS High Sierra • Launch the App Store app, located in your Applications folder. • Look for macOS High Sierra in the App Store. You can also do a search, but you’ll probably find it in the top marquee carousel or somewhere in the Features section of the store. Click on it once you find it. • This should bring you to the High Sierra section of the App Store, and you can read Apple’s description of the new OS there. When you’re ready, click the Download button at the upper left. The download will take a few minutes. The installer software is over 5GB. Apple • When the download finishes, the installer will automatically launch. You can quit (Command-Q) if you want to run the installer later. It will be saved to your Applications folder. Click Continue if you want to proceed. Apple • Read the software license agreement and click Agree. • Select your Mac’s startup drive and click Install. • You must enter the username and password for the new “helper tool” that the installer wants to install. Enter this information and click Add Helper. • The installer will tell you it needs to restart the Mac to proceed. Click Restart. Apple • If you have other applications open, the installer will ask to close those apps. Click Close Applications. • Your Mac will restart and proceed with the installation. When it’s done, you’ll have High Sierra on your Mac. + + What to Do if Your Mac Can’t Run macOS Sierra Posted on December 15th, 2016 by Note: Although this article was written for macOS Sierra (10.12), much of it still applies to macOS High Sierra (10.13) which was released in September 2017. High Sierra's system requirements are the same, except that High Sierra now requires 14.3 GB of available disk space, and a minimum of OS X Mountain Lion (10.8) to do a direct-upgrade installation. Apple recently released a new version of its Mac operating system, macOS Sierra (version 10.12). With the release of Sierra, Apple decided to drop support for some Mac models that were supported by several previous releases of the Mac operating system. In other words, just because your Mac was compatible with El Capitan (OS X 10.11), Yosemite (10.10), Mavericks (10.9), or Mountain Lion (10.8) may not necessarily mean that you'll be able to upgrade to Sierra.
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