What to know before updating to lion
In addition, during the months from June to September the company will issue beta versions of the next version of the operating system software - we don't yet know what mac OS 10.14 will be called, but we do have some information about the next version of mac OS here.
Some people will be able to test the beta out on their Macs.
You can find out how to get beta versions of Apple's operating system here.
In the case of mac OS High Sierra, here is a full list of the Macs that will be able to download the Mac OS upgrade.
Apple issues a major update to its Mac operating system once a year, previewing it at WWDC in June, and issuing the final version in September, usually.
However, updates continue to be released throughout the year, often because Apple needs to address vulnerabilities or fix problems, but sometimes to add new features, such as new Emoji.
You can read all about the latest version of Mac OS, along with details of the latest point updates and any known issues, here: Mac OS High Sierra latest news: current version, updates, betas, and new features.
The version you will download from the Mac App Store will be an older version than the latest update.
Because multiple updates to High Sierra have been issued by Apple since it launched in September 2017, you should expect to have to update the operating system again once you have installed it, but this should happen automatically.
Here's how to install mac OS High Sierra on your Mac: As we said above, we recommend that you don't jump right in and install the new software straight away though.
Regardless of how stringent Apple's test process is, there are inevitably issues with the initial downloads.