Even though the release of the public beta suggests Apple is getting closer to release, it's important to keep in mind that the "beta" label means there are bound to be at least a few bugs - some of which can mess with core features of your phone.
Apple has seeded the first public beta of tvOS 12 for testing. Do note iOS 12 public beta 1 is the same version as iOS 12 beta 2 for developers. Just be aware that beta software isn't finished and could be loaded with bugs. You'll then have to sign in with your Apple ID login.
"As a member of the Apple Beta Software Program, you can take part in shaping Apple software by test-driving pre-release versions and letting us know what you think", said Apple. After, from your iOS device, visit beta.apple.com/profile, and download the iOS Beta Configuration Profile. You can also set app and device time limits for your children's iPhones or iPads through the parental controls.
Another new addition to scanning QR codes in iOS 12 is the yellow highlight frame shown below.
In any case, iOS 12 does bring a whole suite of improvements. Apple's also revamped the social side of photos, and will make suggestions about people you may want to send your snapshots to, based on who's in the pictures.
The other big theme of the year is new features to help you spend less time using your phone. You also can turn on Do Not Disturb when you're in a meeting, for a few hours or for longer. All iPhone users can try out Apple's new "Measure" app, with augmented reality technology to estimate the length of things within the camera's view. Those shortcuts can be used in any app, finally allowing a whole range of apps to interact with Siri.