Apple unveiled iOS 12 at its annual WWDC conference.

What's New in iOS 12

Apple introduced the newest version of its iOS operating system, iOS 12, on June 4 at the keynote event of the Worldwide Developers Conference. 

With iOS 12, Apple doubled down on performance, working from top to bottom to make iPhones and iPads faster and more responsive. Apple has made improvements on devices both old and new, and iOS 12 has been designed to run on all devices able to run iOS 11.

Customizable Animoji called Memoji

      which you can personalize to look like you.

      And this allow users to create personalized animated emojis that look like them. Apple users will get to design a virtual avatar called a "memoji" that has the same face-tracking features that the Animoji have, meaning that if you stick out your tongue detection or wink, the memoji will do that as well.

Memojis are highly customizable, with multiple options for skin colors, hairstyles, head shapes, eyes, eyebrows, facial hair, eyewear, and headwear. 

Once a Memoji has been created, it can be used just like an Animoji, with the iPhone X's facial recognition sensors mimicking real-time facial expressions and head movements. Starting with iOS 12.

The existing set of Animoji is also expanding to include a ghost, koala, tiger, and tyrannosaurus rex in iOS 12. 

Memoji can only be created on the iPhone X, but they can be sent in Messages across most Apple devices. They can also be used in FaceTime video chats, alongside other new camera effects and filters such as "comic book" and "watercolor" .

Group FaceTime

      FaceTime changed the way we communicate and share important moments, and now with Group FaceTime, it’s easy to chat with multiple people at the same time. Maximum 32 participants speak at a moment. Participants can be added at any time, join later if the conversation is still active and choose to join using video or audio from an iPhone, iPad or Mac — or even participate using FaceTime audio from Apple Watch.

Photos

An all-new For You tab surfaces favorite moments in one place, combining Memories and iCloud Shared Albums. A new sharing suggestions feature makes it easier to share photos with friends, and friends who receive photos are prompted to share back any photos and videos they have from the same trip or event. Search suggestions surface the most relevant Events, People, Places, Groups, Categories and recent searches, and new search functionality lets users combine multiple search terms to find just the right photos.

Screen Time Widget

        In the Widgets section, accessible by to the right on the Home screen, there's a new Screen Time widget where you can see how much time you've spent on your iOS device lately, and what you've been doing. You can also see your full Screen Time usage metrics in the Settings app. 

Automatic Updates

iOS 12 introduces an option to turn on automatic software updates under General --> Software Update. This will update your version of iOS automatically when an update is available. 

Messages Shortcuts

 If you tap on a person's name in the Messages app, there are now shortcuts to initiate a FaceTime audio call, initiate a standard FaceTime video call, or get info on the contact. This is also how group FaceTime calls are started from the Messages app. 

Notification Grouping 

     In the Notifications section of the Settings app, there are options to customize Notification Grouping for all of your apps. Notification Grouping Settings include Automatic, By App, and off. Notification settings have also been redesigned somewhat, and there are toggles for setting notifications to show up only in the Notification Center but not the Lock screen. 

New iPad Gestures

    Apple tweaked gestures on the iPad to better match the iPhone X. You now swipe down from the top right of the iPad to bring up Control Center, rather than swiping up from the bottom. Swiping up from the dock goes to the Home screen. 

iPad Menu Bar   

     The menu bar at the top of the iPad has been redesigned, and it looks like Apple is making room for a notch that will be included on upcoming iPad Pro models that will feature Face ID. The time, day, and date are located on the upper left hand side of the screen, while the right shows Wi-Fi or LTE connection, Bluetooth, and battery life.

One-Time Password Autofill

     Apple says that one-time SMS passcodes will appear automatically as Autofill options so you don't need to hassle with quitting out of an app, opening the Messages app, copying it, and then entering it in the app that needs the code. In the Settings app, Safari Autofill has been replaced with the more general Password Autofill, and there's a new Autofill Passwords setting under Passwords & Accounts. 

Scan QR Code in Control Center

There's a new Control Center shortcut for scanning a QR code. 

Siri Suggestions

    Siri is smarter in iOS 12, and there's a new setting to allow Siri suggestions to appear on the Lock screen. You can also enable Shortcuts in the Settings menu, though Shortcuts are not yet available and will be coming through an app set to be released at a later date. Siri suggestions on the Lock screen can be enabled on a per-app basis. 

Siri in Low Power Mode - You can use "Hey Siri" with Low Power Mode turned on in iOS 12. 

Lock Screen Options

     There are new options to disable access to Wallet and USB Accessories when an iPhone is locked with a passcode. With USB Accessories disabled, you need to unlock the iPhone to allow USB accessories to connect when it has been more than an hour since your iPhone was locked. This setting will make it more difficult for law enforcement to access locked devices with USB tools like the GrayKey box.

Markup Colors 

Here are a lot more colors available when using Markup for editing screenshots, marking up images, editing PDFs, and more. 

Apple Books

   

With the Books app getting a revamp and a new name, there are several new settings for Books in the Settings app. You can turn on syncing options for the "Reading Now" feature to keep track of where you are in a book across devices, and you can choose specific devices where you want to update your place.  

Apple Books is redesigned to make it easier to discover and enjoy books and audiobooks, and the Book Store tab makes it easy to explore new titles and browse the top charts, curated collections and special offers.

Podcasts 

   

You can set custom durations for the Forward and Back options in Podcasts. The two options are separate, and durations from 10 to 60 seconds are available. 

Battery Info

In the Settings app, the battery usage chart shows usage for the last 24 hours or the last 10 days instead of the last 7 days. There's also a whole new chart that displays battery usage information.

And more 100 of changes and updates are there in iOS12

Thanks.

For the full reference with macrumors and from the Apple Preview and 9to5mac

Keep it SAFE........