Which version of MacOS X do you currently have installed?
Macos High Sierra Iso
The error message will be given if you opened a Photos Library in a newer version of Photos, perhaps a Beta version. If that happens, you have to upgrade your Mac to that same version of MaxOS X.
You will not see an update at the AppStore, if you are running an older major release of MacOS X, for example macOS 10.12.6 Sierra. There are no more macOS 10.12 updates. But you can upgrade by installing the new major release macOS 10.13 High Sierra. macOS High Sierra - Apple
Just download 'Install macOS High Sierra.app' from the Mac App Store. If you don't have a Mac, you can make a virtual machine to download the file and create the USB installer. If you have NOT previously installed High Sierra, you can download and install this package to install the latest BootROM version. When installing, ensure your system is plugged in to power, or the update will not be installed. Insert your desired USB drive, open Disk Utility, and format it as OS X. Mac studio fix powder plus foundation nc43.
All Late 2009 and later MacBook and iMac models are supported in macOS Sierra, as are all 2010 and newer MacBook Air, MacBook Pro, Mac mini, and Mac Pro computers. Hacking macOS Sierra for Unsupported Macs. Hardware requirements for macOS Sierre include a CPU with SSE4.1, so it cannot be run on any Mac with a CPU prior to the Penryn Core 2 Duo.
Install Macos High Sierra
The system upgrades are installed from the main page of the AppSTore, not the Updates tab.
Oct 29, 2017 3:00 AM
