Historically, the GM build has been the exact same thing as the stable release the following week, so there's no harm in installing this way. Also, developers need it so they can prepare their apps to support the new iOS version and take advantage of any new features they can offer users. The golden master, or GM, is the last beta build available for iOS devices, and it's meant to serve as a way for public beta users to report any last known issues that could prevent the stable release from functioning correctly. These files are actually of the golden master build. While the 'Software Update' section in Settings is by far the easiest way to update to iOS 12, you can also choose to download the IPSW file of iOS 12 and install it on your iPhone using iTunes.

To see all of what's new, jump down to the release notes below or check out our more in-depth iOS 12 features roundup. The easiest way is to just open up the Settings app on your iPhone, tap 'General,' then select 'Software Update.' When the update is available, it will show as 'iOS 12,' so just download and install it using the on-screen prompts. Just make sure to save an archived backup of iOS 11.4.1 via iTunes on your computer Just back up using iTunes and store the backup on your computer, then open 'Preferences' in iTunes, select 'Devices,' then right-click on the backup file of iOS 11.4.1 and select 'Archive.' Method 1: Update OTA from Settings Don't Miss: 100+ Cool New iOS 12 Features for iPhone You Need to Know AboutĮither way you decide to get iOS 12 on your iPhone, as long as Apple continues to sign iOS 11.4.1, you'll be able to downgrade from iOS 12 back to iOS 11 if you don't end up liking the new update.If you want to start fresh, from a wiped device, you might want to try the second method which is installing from an IPSW file via iTunes. The first method is simply updating from an over-the-air update, which we recommend all of you do if you want to keep all your data. In order to download and install iOS 12, there are two ways to go about it. Install it to start taking advantage of the 100+ features iOS 12 has to offer right now. 12, the day of Apple's 2018 special event. 17, and it's the same exact build that developers and public beta testers received as the 'golden master' on Sept. Apple's latest mobile operating system for iPhones, iOS 12, was released to everyone Monday, Sept.

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