21 game-changing announcements Apple made at its biggest conference of the year

1. iOS 12 will work on any device that supports iOS 11 — and Apple made sure iOS 12 works great on older devices in particular. On the iPhone 6S, for instance, apps launch up to 40% faster and you can take photos up to 70% faster thanks to iOS 12.

2. Apple teamed up with Pixar to make a new compact file format called USDZ, which is optimized for sharing GIFs and videos that feature 3D graphics and animations. This will be ideal for sharing your augmented-reality experiences with the world.

3. Apple introduced a special new app for iOS 12 called Measure, which, as the name suggests, lets you measure distance and length using only your iPhone. Just tap on your phone and drag a line with your finger to get a measurement.

4. Sharing photos with friends is much easier in iOS 12. If you take photos with your friends, iOS can detect which friends are in your photos, and offer to send those photos to them. And your friends can get similar notifications to share their photos from the same event, so everyone can access the full set of photos.

5. Apple just made Siri much more useful, thanks to the new feature Siri Shortcuts — borne from Apple's acquisition of the excellent Workflow app. With Siri Shortcuts, you can create unique phrases that perform multiple activities in one or several apps. For example, you could create a Siri Shortcut for the phrase "I lost my keys," which could automatically trigger your Tile app to play an alarm so you can find your device.

6. Apple made CarPlay, its system that lets your iPhone interface with your car's stereo or display, much more attractive: In iOS 12, CarPlay will finally support third-party navigation apps, so you can get directions from popular apps like Waze and Google Maps. (The WWDC crowd loved this one.)

7. Apple is also updating Notifications. In iOS 12, Apple will finally group notifications (!!) by app, topic, or thread. And you'll also be able to more easily fine-tune which apps can send notifications in the first place.

8. Apple added App Limits for people who need help managing their time on their devices, so, for instance, you could choose to spend only an hour in Instagram per day. Parents can also set App Limits on their kids, too: Apps can be managed individually or by category, in case they want their child to always have access to the Phone app, or educational apps.

9. Apple is taking Animojis to the next level with a Bitmoji-esque feature called Memoji, which lets you create your own personalized Animoji. You can make your avatar look like the real you, or like someone else entirely.

10. Apple's Messages app will be much more like Snapchat in iOS 12. The camera function in the Messages app will be able to add filters, text, and stickers — you can even apply Animoji and Memoji in your videos.

11. Apple dialed FaceTime up to 11 with Group FaceTime, which supports up to 32 simultaneous participants. FaceTime is now integrated with Messages so you can go right from a group chat to a group FaceTime, and members can drop in and out at any time.

12. Oh, and the best part about the new FaceTime? You can also apply stickers, filters, Animoji, and Memoji there, too, which can result in some horrific team meetings.

13. The Apple Watch is now much smarter about your workouts, thanks to watchOS 5. The new Apple Watch software introduces automatic workout detection, which can suggest an activity based on what it thinks you're doing (in case you forget to program your workout ahead of time). Similarly, if you forget to turn off your workout manually, the Apple Watch can also now detect if you've stopped working out.

14. The Apple Watch has a new way to communicate: Walkie-talkie. Just choose a person to Walkie-Talkie with, and once that person accepts your request, you two can Walkie-Talkie whenever you like. You just push into your watch, and start talking. This works over both cellular and WiFi.

15. Another clever new Apple Watch feature: Now, if you raise your wrist, you don't need to say "Hey Siri" to start talking to your Apple Watch. It will automatically recognize that you want to talk to it. Just say whatever you want! (Within reason, of course.)

16. Students are going to love this one: In watchOS 5, you can add your Student ID cards to your Apple Watch. This will let you access your dorm or library, or even pay for snacks or laundry or dinners, with only your Apple Watch. It'll start at seven universities at first, including Duke, this fall.

17. The Apple TV is getting a nice new feature called "zero sign-on," which lets you access all your supported apps included with your TV service on your Apple TV as long as you're both using the same broadband network. That means if you buy a new Apple TV, you won't have to manually sign into every TV app to start using it. Charter Spectrum will be the first to support zero sign-on, but Apple says it plans to add others.

18. The Mac is finally getting a true dark mode with the newest macOS release coming later this year, Mojave. The optional dark mode affects the entire system, from Apple's own apps like Photos and iTunes to all of your windows and filters. It even works in Apple's programming environment Xcode, which should make coding much easier on the eyes.

19. In the new macOS Mojave, a new feature called Stacks can easily organize all the random contents on your desktop into neat little batches of documents. If you click on a Stack, you'll see all the contents. And the best part is they stay organized! If you keep adding images to your desktop, macOS Mojave will automatically categorize them.

20. Apple made Continuity, its system that lets you pick up where you left off on other Apple devices, much more powerful in macOS Mojave. Now, if you're working on a document on your Mac and you invoke a function to take a photo, it will automatically activate the camera on your phone. And when you snap that photo, the photo automatically appears in the document on your Mac. This can be a huge time-saver.

21. Apple also offered a sneak peek of an ambitious project it's working on: the ability to easily convert iOS apps into Mac apps. Apple used this new tech to bring its Voice Memos, Apple News, and Stocks apps from the iPhone to the iPad and Mac this year, but the new feature will be available for all developers in 2019.

Want more WWDC? You can read our coverage of every announcement made at the big Apple event, or go more in-depth with Business Insider's WWDC coverage below:

— Apple just announced iOS 12 — here are all the major changes coming to iPhones and iPads later this year

— Apple's next major update to the Mac arrives this fall, and is called 'Mojave' — here are all the new features

— Here are all the great new features your Apple Watch will get later this year

— Apple's adding animated avatars to the iPhone you can send in iMessage — here's how you'll create Memoji

— Apple is turning your iPhone into a powerful, virtual tape measure with a cool new app

— Apple is fixing the worst part of its CarPlay software — you'll finally be able to use Google Maps

— Here are all the new ways Apple will help you combat your smartphone addiction in iOS 12

— You can order a coffee directly from your lock screen with Apple's new 'Shortcuts' feature — here's how it will work

— Apple is stealing a great idea from Android as it gets ready to dramatically improve iPhone notifications

— FaceTime will now support video chats with up to 32 people, as well as filters and animoji

— Apple is partnering with Pixar as part of its big push into augmented reality

— Apple is giving the Stocks app on iPhone an upgrade with more charts and context